Chinese Journal of Chemistry最新文献

筛选
英文 中文
Biotin-Engineered Phenothiazine Photosensitizer Boosts Type I Photodynamic Therapy via Singlet-Excited-State Electron Transfer 生物素工程吩噻嗪光敏剂通过单线态激发态电子转移促进I型光动力治疗
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-15 Epub Date: 2026-09-18 DOI: 10.1002/cjoc.70779
Shuxin Peng, Zipeng Li, Yunqi Kuang, Xiaoqiang Wang, Lingyan Liu, Min Zhang, Ying Li, Peng Wei, Tao Yi
{"title":"Biotin-Engineered Phenothiazine Photosensitizer Boosts Type I Photodynamic Therapy via Singlet-Excited-State Electron Transfer","authors":"Shuxin Peng,&nbsp;Zipeng Li,&nbsp;Yunqi Kuang,&nbsp;Xiaoqiang Wang,&nbsp;Lingyan Liu,&nbsp;Min Zhang,&nbsp;Ying Li,&nbsp;Peng Wei,&nbsp;Tao Yi","doi":"10.1002/cjoc.70779","DOIUrl":"https://doi.org/10.1002/cjoc.70779","url":null,"abstract":"<div>\u0000 \u0000 <p>Type II-dominant photosensitizers often suffer from reduced photodynamic efficacy under tumor hypoxia. We report a biotin-modified phenothiazine photosensitizer termed DHU-Blue-7, which converts type II methylene blue (MB)-like photosensitization into a type I pathway via regulating excited-state characteristics, while retaining its visible-to-near-infrared absorption. The incorporated biotin moieties serve as both tumor-targeting groups for cellular internalization and pendant electron donors. Under light irradiation, DHU-Blue-7 produced both <sup>1</sup>O<sub>2</sub> and O<sub>2</sub><sup>•–</sup>, showing a 3.3-fold stronger fluorescence response associated with O<sub>2</sub><sup>•–</sup> generation than that of MB. DFT/TD-DFT calculations and femtosecond transient absorption spectroscopy revealed that the folded conformation of DHU-Blue-7 enables singlet-excited-state photoinduced electron transfer from biotin moieties to the phenothiazine core, forming a relatively long-lived charge-separated state that favors type-I reactive oxygen species (ROS) generation. At the cellular level, DHU-Blue-7 achieves efficient light-activated elimination of cancer cells under both normoxic and hypoxic environments, while exhibiting negligible phototoxicity to normal cells. In the 4T1 tumor-bearing mouse model, DHU-Blue-7 coupled with light irradiation markedly suppressed tumor proliferation, with no evident damage to major organs. This study verifies that biotin modification serves as a facile yet effective strategy to equip phenothiazine photosensitizers with hypoxia-resistant type I photodynamic performance through conformation-governed singlet-excited-state electron transfer.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 22","pages":"3581-3590"},"PeriodicalIF":5.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Achiral Additives Modulated Helicity and Supramolecular Fibrillation Assembly of Helical Dendronized Poly(phenylacetylene)s through Enhanced Radial Amphiphilicity† 非手性添加剂通过增强径向两亲性调控螺旋枝状聚苯乙炔的螺旋度和超分子纤颤组装
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-15 Epub Date: 2026-09-18 DOI: 10.1002/cjoc.70760
Yuxin Zhang, Zibo Yan, Xueting Lu, Afang Zhang, Wen Li
{"title":"Achiral Additives Modulated Helicity and Supramolecular Fibrillation Assembly of Helical Dendronized Poly(phenylacetylene)s through Enhanced Radial Amphiphilicity†","authors":"Yuxin Zhang,&nbsp;Zibo Yan,&nbsp;Xueting Lu,&nbsp;Afang Zhang,&nbsp;Wen Li","doi":"10.1002/cjoc.70760","DOIUrl":"https://doi.org/10.1002/cjoc.70760","url":null,"abstract":"<div>\u0000 \u0000 <p>Non-covalent interactions with additives have been demonstrated to be intriguing in conferring racemic polymers with preferential one-handed helical conformation. However, these additives are normally chiral, and specific interactions are demanded. We report herein the modulation of helicity from thermoresponsive helical dendronized poly(phenylacetylene)s (PPAs) in aqueous media by using achiral aromatic additives at different temperatures. These dendronized PPAs carry dendritic oligo(ethylene glycol)s (OEGs), which exhibit characteristic thermoresponsive behavior with their cloud points (<i>T</i><sub>cp</sub>s) governed by the peripherals of the dendritic OEGs. Notably, these polymers can undergo helical conformation inversion across their thermal phase transitions. However, such inversion can be modulated by the presence of achiral aromatic additives, including benzoic acid, phenol, and aniline. These aromatic achiral compounds increase hydrophobicity of the polymers to decrease their <i>T</i><sub>cp</sub>s, and act as molecular glues to greatly enhance intermolecular aggregation of the helical PPAs at elevated temperatures. In contrast to the thermally aggregated micelles typically observed from thermoresponsive polymers above their <i>T</i><sub>cp</sub>s, the presence of aromatic additives intriguingly promotes the formation of long helical fibers alongside double helices from aqueous polymer solutions above the <i>T</i><sub>cp</sub>s. Molecular dynamics simulations are employed to elucidate the competitive interactions among the dendronized PPA chains, the additives, and water.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 22","pages":"3647-3656"},"PeriodicalIF":5.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photoinduced Trifluoromethyl- and Difluoromethyl-Chalcogenation of α-Diazo Compounds α-重氮化合物的光诱导三氟甲基和二氟甲基硫代作用
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-15 Epub Date: 2026-09-17 DOI: 10.1002/cjoc.70739
Fei Tan, Hongwei Tang, Jian Yang, Peiting Wen, Tao Song, Wei Wang, Xiao Huang, Ling Mei, Hongbo Dong, Jian Wang
{"title":"Photoinduced Trifluoromethyl- and Difluoromethyl-Chalcogenation of α-Diazo Compounds","authors":"Fei Tan,&nbsp;Hongwei Tang,&nbsp;Jian Yang,&nbsp;Peiting Wen,&nbsp;Tao Song,&nbsp;Wei Wang,&nbsp;Xiao Huang,&nbsp;Ling Mei,&nbsp;Hongbo Dong,&nbsp;Jian Wang","doi":"10.1002/cjoc.70739","DOIUrl":"https://doi.org/10.1002/cjoc.70739","url":null,"abstract":"<div>\u0000 \u0000 <p>Organofluorides, including trifluoromethylthiolated compounds, play an important role in pharmaceuticals, agrochemicals and materials science. Although the synthesis of these organofluorides has been well studied, harsh conditions and specific substrates are usually involved, which limited the development of this field. Herein, we report a novel protocol to construct highly functionalized trifluoromethylthiolated and derived scaffolds via the trifluoromethyl- and difluoromethyl-chalcogenation of α-diazo compounds under mild and green conditions using a photochemical strategy. This multicomponent reaction exhibits broad substrate scope and good functional group tolerance (37 examples, up to &gt;99% yield), which could be applied to late-stage modification of complex natural products. Additionally, the gram-scale synthesis and antibacterial assays were carried out to explore the application of this transformation, and the results showed good scalability (1.45 g, 69% yield) as well as promising antibacterial activity. Moreover, the mechanistic study indicates a cascade process via oxonium species.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 22","pages":"3629-3636"},"PeriodicalIF":5.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green Light-Driven, Diastereoselective Synthesis of Pentasubstituted α-Trifluoromethylated Pyrrolidines via a Singlet Carbene Process 单线态卡宾法绿光驱动非对映选择性合成五取代α-三氟甲基化吡咯烷
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-15 Epub Date: 2026-09-17 DOI: 10.1002/cjoc.70721
Xianda Wu, Yuhao Lian, Shuangming Zhang, Zhenmeng Lin, Lei Gong, Ablimit Abdukader, Yu-Mei Lin
{"title":"Green Light-Driven, Diastereoselective Synthesis of Pentasubstituted α-Trifluoromethylated Pyrrolidines via a Singlet Carbene Process","authors":"Xianda Wu,&nbsp;Yuhao Lian,&nbsp;Shuangming Zhang,&nbsp;Zhenmeng Lin,&nbsp;Lei Gong,&nbsp;Ablimit Abdukader,&nbsp;Yu-Mei Lin","doi":"10.1002/cjoc.70721","DOIUrl":"https://doi.org/10.1002/cjoc.70721","url":null,"abstract":"<div>\u0000 \u0000 <p>Trifluoromethylated heterocycles represent privileged structural motifs in pharmaceuticals and agrochemicals, as the incorporation of a CF<sub>3</sub> group significantly enhances metabolic stability, lipophilicity, and bioactivity. Among these, <i>α</i>-trifluoromethyl pyrrolidines have garnered considerable interest; however, stereoselective access to polysubstituted variants remains a persistent synthetic challenge. To tackle this, we report a green light-driven, three-component reaction of <i>α,β</i>-unsaturated ketones, trifluoromethyl diazo compounds, and alkyl nitriles under metal- and photosensitizer-free conditions. This atom-economical and operationally simple protocol, followed by a sequential one-pot NaBH<sub>4</sub>/AlCl<sub>3</sub> reduction, efficiently delivers pentasubstituted <i>α</i>-trifluoromethyl pyrrolidines with excellent yields (up to 99%) and exclusive diastereoselectivity (all &gt;20 : 1 d.r.). Mechanistic studies elucidate a concise cascade initiated by photoinduced singlet carbene generation. These electrophilic species are captured by alkyl nitriles, which serve as both solvent and nitrogen donor, to form key fluoroalkyl ylides. Subsequent stereoselective 1,3-dipolar cycloaddition with <i>α,β</i>-unsaturated ketones, followed by reduction, constructs the complex skeleton. This work not only provides a highly practical and green route to valuable fluorinated heterocycles but also advances the fundamental understanding of singlet carbene reactivity, showcasing the remarkable utility of long-wavelength photochemistry in complex molecule synthesis.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 22","pages":"3607-3613"},"PeriodicalIF":5.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inside Cover Picture 内页图片
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-15 DOI: 10.1002/cjoc.70839
{"title":"Inside Cover Picture","authors":"","doi":"10.1002/cjoc.70839","DOIUrl":"https://doi.org/10.1002/cjoc.70839","url":null,"abstract":"<p>Traditional glycosylations rely on protecting-group manipulations, resulting in cumbersome synthetic routes. Starting form unprotected sugars, a new N-bromosuccinimide (NBS)-mediated Mitsunobu glycosylation method enabling the direct construction of N-glycosides was developed. The method was successfully applied to the monosaccharide composition analysis of polysaccharides from traditional Chinese medicine. More details are discussed in the article by Zhou <i>et al</i>. on pages 3657—3662.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 22","pages":""},"PeriodicalIF":5.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjoc.70839","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Achieving Structural Evolution from Sn7 to Sn7Mo12 for Efficient Near-Infrared Photothermal Conversion via a Redox Coordination Hierarchical Strategy 通过氧化还原配位分层策略实现Sn7到Sn7Mo12的高效近红外光热转换结构演化
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-15 Epub Date: 2026-09-17 DOI: 10.1002/cjoc.70785
Xiu-Juan Tian, Yanting Yang, Shi-Li Li, Xian-Ming Zhang
{"title":"Achieving Structural Evolution from Sn7 to Sn7Mo12 for Efficient Near-Infrared Photothermal Conversion via a Redox Coordination Hierarchical Strategy","authors":"Xiu-Juan Tian,&nbsp;Yanting Yang,&nbsp;Shi-Li Li,&nbsp;Xian-Ming Zhang","doi":"10.1002/cjoc.70785","DOIUrl":"https://doi.org/10.1002/cjoc.70785","url":null,"abstract":"<div>\u0000 \u0000 <p>Non-alkyl tin-oxo clusters (SnOCs) feature structural precision and designability, enabling their photophysical properties to be modulated through transition-metal doping and thus holding great promise for solar-driven photothermal conversion. However, such doped SnOCs still face a critical challenge of lacking controlled synthetic strategies. Herein, a redox-coordination hierarchical strategy is developed for non-alkyl SnOCs, exploiting the redox reaction between high-valent molybdenum source (Na<sub>2</sub>Mo<sup>VI</sup>O<sub>4</sub>) and low-valent tin source (Sn<sup>II</sup>Cl<sub>2</sub>) to achieve a structural transformation from hourglass-shaped <b>Sn</b><sub><b>7</b></sub> to pedestal-hourglass-shaped <b>Sn</b><sub><b>7</b></sub><b>Mo</b><sub><b>12</b></sub>. The resulting structure gives rise to strong Mo–Mo interactions and ligand-to-metal charge transfer (LMCT) that together dramatically reduce the optical bandgap from 4.35 eV (<b>Sn</b><sub><b>7</b></sub>) to 2.04 eV (<b>Sn</b><sub><b>7</b></sub><b>Mo</b><sub><b>12</b></sub>). Consequently, <b>Sn</b><sub><b>7</b></sub><b>Mo</b><sub><b>12</b></sub> exhibits an extended absorption spectrum into the near-infrared region and achieves a high photothermal conversion efficiency of 85.61%. Moreover, the material demonstrates a solar-driven water evaporation rate of 0.97 kg·m<sup>–2</sup>·h<sup>–1</sup> and an evaporation efficiency of 55.65%. This work not only provides new insights into the rational design and controlled synthesis of broadband-absorbing photothermal materials but also lays a crucial foundation for the functional development of heterometallic SnOCs.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 22","pages":"3599-3606"},"PeriodicalIF":5.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heptazine-Phloroglucinol Based Hydrophilic Hypercrosslinked Polymers for the Ultrafast Removal of Aromatic Organic Micropollutants 超快去除芳香族有机微污染物的七嗪-间苯三酚基亲水性超交联聚合物
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-01 Epub Date: 2026-09-18 DOI: 10.1002/cjoc.70754
Wei Zhang, Ke Chen, Yongqi Wu, Dongliang Lu, Hui Lin, Xiaomei Cao, Yong Zhang
{"title":"Heptazine-Phloroglucinol Based Hydrophilic Hypercrosslinked Polymers for the Ultrafast Removal of Aromatic Organic Micropollutants","authors":"Wei Zhang,&nbsp;Ke Chen,&nbsp;Yongqi Wu,&nbsp;Dongliang Lu,&nbsp;Hui Lin,&nbsp;Xiaomei Cao,&nbsp;Yong Zhang","doi":"10.1002/cjoc.70754","DOIUrl":"https://doi.org/10.1002/cjoc.70754","url":null,"abstract":"<div>\u0000 \u0000 <p>The rapid removal of persistent aromatic organic micropollutants (OMPs) from water requires adsorbents with high affinity and excellent dispersibility. To overcome the inherent hydrophobicity and limited functionality of conventional hypercrosslinked polymers (HCPs), we designed a novel <i>C</i><sub>3</sub>-symmetric heptazine monomer (TPH) featuring multiple phenolic hydroxyl groups and an extended π-conjugated system. Two HCP-TPHs, HCP-TPH-1 and HCP-TPH-2, were synthesized directly from this hydrophilic TPH monomer, resulting in materials with high surface area, abundant functional groups, and intrinsic hydrophilicity. These structural characteristics enabled ultrafast adsorption of typical aromatic OMPs. For instance, in the adsorption of rhodamine B by HCP-TPH-1, the pseudo-second-order rate constant reached 61.453 g·mg<sup>–1</sup>·min<sup>–1</sup>, with a maximum adsorption capacity of 2658 mg·g<sup>–1</sup>—both record-high values among all reported adsorbents to date. This study demonstrates a powerful monomer-level design strategy to create advanced HCPs for highly efficient water purification.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 21","pages":"3481-3488"},"PeriodicalIF":5.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Cobalt Porphyrin Doubly Tethered with Piperazine Groups for Highly Selective Electrocatalytic Four-Electron Oxygen Reduction Reaction in Acidic Aqueous Solution 酸性水溶液中高选择性电催化四电子氧还原反应的双链哌嗪基卟啉钴
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-01 Epub Date: 2026-09-18 DOI: 10.1002/cjoc.70783
Haoyuan Lv, Qinyu Li, Jiwu Zhao, Xialiang Li, Wei Zhang, Ping Yang, Xue-Peng Zhang, Rui Cao
{"title":"A Cobalt Porphyrin Doubly Tethered with Piperazine Groups for Highly Selective Electrocatalytic Four-Electron Oxygen Reduction Reaction in Acidic Aqueous Solution","authors":"Haoyuan Lv,&nbsp;Qinyu Li,&nbsp;Jiwu Zhao,&nbsp;Xialiang Li,&nbsp;Wei Zhang,&nbsp;Ping Yang,&nbsp;Xue-Peng Zhang,&nbsp;Rui Cao","doi":"10.1002/cjoc.70783","DOIUrl":"https://doi.org/10.1002/cjoc.70783","url":null,"abstract":"<div>\u0000 \u0000 <p>Selective electrocatalytic four-electron (4e) oxygen reduction reaction (ORR) is required in many new energy conversion technologies. Although Co porphyrins are active for electrocatalytic ORR, their selectivity for the 4e ORR is usually poor. Herein, we report the design and synthesis of Co porphyrin <b>1</b> bearing two tethered piperazine groups and its electrocatalytic performance for the selective 4e ORR in 0.10 M HClO<sub>4</sub> aqueous solutions. By tethering a piperazine group on each side of the porphyrin macrocycle, we introduced four amine units into Co porphyrin <b>1</b>. These amine units can be protonated in acidic solutions, and the protonated amines can function as both intramolecular proton relays and positively charged groups to improve the four-electron ORR selectivity of Co porphyrins. With this structural modification, <b>1</b> electrocatalyzes ORR with a half-wave potential <i>E</i><sub>1/2</sub> = 0.59 V versus RHE and a transferred electron number <i>n</i> = 3.90 in 0.10 M HClO<sub>4</sub> aqueous solutions. This work is therefore significant to present <b>1</b> as a highly selective electrocatalyst for the 4e ORR and demonstrate a new ORR electrocatalyst design strategy by employing multiple amine groups to enhance electrocatalytic 4e ORR in acidic aqueous solutions.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 21","pages":"3463-3469"},"PeriodicalIF":5.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cu-Catalyzed Controllable Single and Double Hydrophosphination of Trifluoromethyl 1,3-Enynes† 铜催化三氟甲基1,3-烯醚†的可控单和双加氢磷酸化
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-01 Epub Date: 2026-09-08 DOI: 10.1002/cjoc.70764
Yong-Xin Teng, Xiaoli Huang, Xiaodong Tang, Fa-Guang Zhang, Jun-An Ma
{"title":"Cu-Catalyzed Controllable Single and Double Hydrophosphination of Trifluoromethyl 1,3-Enynes†","authors":"Yong-Xin Teng,&nbsp;Xiaoli Huang,&nbsp;Xiaodong Tang,&nbsp;Fa-Guang Zhang,&nbsp;Jun-An Ma","doi":"10.1002/cjoc.70764","DOIUrl":"https://doi.org/10.1002/cjoc.70764","url":null,"abstract":"<div>\u0000 \u0000 <p>Fluorinated organophosphorus compounds are highly valuable in transition-metal catalysis and medicinal chemistry. Despite their significance, synthetic methods through catalytic hydrophosphination of β-CF<sub>3</sub>-1,3-enynes remain unexplored, particularly for divergent synthesis of structurally distinct phosphine derivatives. Herein, we report a copper-catalyzed divergent hydrophosphination of β-CF<sub>3</sub>-1,3-enynes with diarylphosphines. By fine-tuning the copper source, ligand, and base, this protocol enables selective access to fluorinated allenyl monophosphines and dienyl bisphosphines in good to excellent yields with excellent regio- and stereoselectivity. The transformation exhibits broad substrate scope and functional-group tolerance, proceeds under mild conditions, and enables versatile downstream derivatizations. Mechanistic studies indicate that the CF<sub>3</sub> group and ligands play crucial roles in controlling reactivity and chemoselectivity.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 21","pages":"3433-3440"},"PeriodicalIF":5.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CuI/CuO Heterointerface Enables Selective Aqueous Electrosynthesis of 2-Iodoxybenzoic Acid CuI/CuO异质界面实现了2-碘氧基苯甲酸的选择性电合成
IF 5.7 1区 化学
Chinese Journal of Chemistry Pub Date : 2026-10-01 Epub Date: 2026-09-17 DOI: 10.1002/cjoc.70790
Fuyu Han, Qilong Wang, Nan Lin, Yupeng Wu, Fangbing Liu, Linchuan Cong, Xinxin Li, Yue Wang, Kewen Ma, Ciduo Wang, Haibo Lin, Shouhua Feng
{"title":"CuI/CuO Heterointerface Enables Selective Aqueous Electrosynthesis of 2-Iodoxybenzoic Acid","authors":"Fuyu Han,&nbsp;Qilong Wang,&nbsp;Nan Lin,&nbsp;Yupeng Wu,&nbsp;Fangbing Liu,&nbsp;Linchuan Cong,&nbsp;Xinxin Li,&nbsp;Yue Wang,&nbsp;Kewen Ma,&nbsp;Ciduo Wang,&nbsp;Haibo Lin,&nbsp;Shouhua Feng","doi":"10.1002/cjoc.70790","DOIUrl":"https://doi.org/10.1002/cjoc.70790","url":null,"abstract":"<div>\u0000 \u0000 <p>Aqueous electrosynthesis of hypervalent iodine(V) oxidants provides a sustainable and oxidant-free alternative to conventional chemical synthesis, but the electrooxidation of 2-iodobenzoic acid (IBA) to 2-iodoxybenzoic acid (IBX) is limited by sluggish reaction kinetics and competitive oxygen evolution. Herein, we report a Cu(I)/Cu(II) heterointerface-based CuI@CuO/CF electrocatalyst prepared by growing CuI@CuO on copper foam. The catalyst exhibits high selectivity for IBA electrooxidation in alkaline aqueous media, achieving 90.5% IBX selectivity and 71.4% Faradaic efficiency at 20 mA·cm<sup>–2</sup>. Mechanistic studies and density functional theory calculations indicate that the CuI/CuO heterointerface promotes interfacial charge redistribution under anodic polarization, establishes a built-in electric field, and favors the formation of high-valent Cu–O(H)-type surface states. These features facilitate the adsorption and activation of IBA-derived species, reduce the energetic requirement of the reaction, and thereby contribute to the enhanced activity and selectivity. This work provides new insights into the rational design of highly active and selective electrocatalysts.</p>\u0000 <p></p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"44 21","pages":"3470-3480"},"PeriodicalIF":5.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书