Tetrahedron chem最新文献_第3页

Recent advances in electrochemical deoxygenative functionalization of alcohols and their derivatives 醇及其衍生物电化学脱氧官能化的最新进展

Tetrahedron chem Pub Date : 2025-03-12 DOI: 10.1016/j.tchem.2025.100126

Yong Yuan, Lili Liu, Feng Zhang, Ya-Nan Zhang, Congde Huo

引用次数: 0

Efficient workflow for structural elucidation applied to solidagenone derivative: Combining the speed of ML-J-DP4 screening with the precision of DP4+ 高效的solidagenone衍生物结构解析工作流程：结合ML-J-DP4筛选的速度和DP4+的精度

Tetrahedron chem Pub Date : 2025-03-06 DOI: 10.1016/j.tchem.2025.100125

Iván Cortés , María Luz Tibaldi-Bollati , Viviana E. Nicotra , Manuela E. García , Ariel M. Sarotti

{"title":"Efficient workflow for structural elucidation applied to solidagenone derivative: Combining the speed of ML-J-DP4 screening with the precision of DP4+","authors":"Iván Cortés , María Luz Tibaldi-Bollati , Viviana E. Nicotra , Manuela E. García , Ariel M. Sarotti","doi":"10.1016/j.tchem.2025.100125","DOIUrl":"10.1016/j.tchem.2025.100125","url":null,"abstract":"<div><div>The derivatization of solidagenone through ring expansion, using the \"Complexity to Diversity\" synthetic strategy to obtain polyketones, yielded two products upon reaction of an intermediate with <em>in situ-</em>generated ruthenium tetroxide. As might happen, the spectroscopic and spectrometric data were inconclusive for the structural determination of one of these products. To address the issue, a ML-<em>J</em>-DP4//DP4+ workflow was studied, which allowed simultaneous determination of connectivity and relative configuration with high accuracy, while saving computational resources. Furthermore, during the calculation of NMR data at the DP4+ level, abnormally large errors were observed for the beta carbon of a polyhydroxylated conjugated enone. A literature analysis revealed that this behavior could be generalized, and after careful examination, it was determined to be the result of small geometric distortions caused by an overestimated network of intramolecular hydrogen bonds. To mitigate this common source of discrepancy, a heuristic solution was introduced as a proof of concept by <em>in silico</em> blocking of hydroxyl groups.</div></div>","PeriodicalId":74918,"journal":{"name":"Tetrahedron chem","volume":"14 ","pages":"Article 100125"},"PeriodicalIF":0.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of all-carbon quaternary center by NHC-catalyzed Heck-type C–H tertiary alkylation nhc催化heck型C-H叔烷基化构建全碳季中心

Tetrahedron chem Pub Date : 2025-03-01 DOI: 10.1016/j.tchem.2025.100124

Tinglan Liu , Pan Yue , Chengming Wang

引用次数: 0

Metal-free sulfenylation of pyrrolo[1,2-a]quinoxaline with diaryl disulfide facilitated by TBATB TBATB催化吡咯[1,2-a]喹啉与二硫酰基的无金属磺化反应

Tetrahedron chem Pub Date : 2025-01-24 DOI: 10.1016/j.tchem.2025.100123

Yingqian Li, Yali Liu, Yan Liu, Xiaowei Ma, Liang Xu, Ping Liu

引用次数: 0

Synthesis of novel benzo fused bridged azaheterocycles through the reaction of chalcone with hydrazone 通过查尔酮与腙的反应合成新型苯并熔桥氮杂环

Tetrahedron chem Pub Date : 2025-01-23 DOI: 10.1016/j.tchem.2025.100122

Congyang Li , Ruochen Pang , Weiwu Ren

引用次数: 0

Synthesis of novel fluorescent 3-pyrrolyl BODIPYs and their derivatives 新型荧光3-吡咯基BODIPYs及其衍生物的合成

Tetrahedron chem Pub Date : 2025-01-22 DOI: 10.1016/j.tchem.2025.100121

Vratta Grover, Mangalampalli Ravikanth

引用次数: 0

Supramolecular light-harvesting systems based on cyanostilbene derivatives 基于氰芪衍生物的超分子光收集系统

Tetrahedron chem Pub Date : 2025-01-20 DOI: 10.1016/j.tchem.2025.100120

Fengyao Cui, Qiaona Zhang, Xiaoman Dang, Tangxin Xiao

{"title":"Supramolecular light-harvesting systems based on cyanostilbene derivatives","authors":"Fengyao Cui, Qiaona Zhang, Xiaoman Dang, Tangxin Xiao","doi":"10.1016/j.tchem.2025.100120","DOIUrl":"10.1016/j.tchem.2025.100120","url":null,"abstract":"<div><div>Photosynthesis provides a natural model for efficient light harvesting, inspiring the development of artificial systems designed to mimic this capability in capturing and converting solar energy. Artificial light-harvesting systems (LHSs) have thus become a key area of research, with promising applications in sensing, imaging, photocatalysis, and optoelectronics. Among the materials explored for LHSs, cyanostilbene derivatives stand out due to their ease of synthesis and unique photophysical properties, such as aggregation-induced emission (AIE) enhancement. These molecules can self-assemble into supramolecular structures through non-covalent interactions, including host–guest interactions, multiple hydrogen bonds, amphiphilic interactions, and metal-ligand coordination, offering tunable architectures for efficient energy transfer and light absorption. This minireview examines recent advancements in the design, synthesis, and functional performance of cyanostilbene-based supramolecular LHSs, analyzing their efficiency and adaptability in energy transfer processes. Future research may focus on integrating these systems with nanomaterials and exploring their potential in advanced energy conversion devices, offering new avenues for sustainable energy technologies.</div></div>","PeriodicalId":74918,"journal":{"name":"Tetrahedron chem","volume":"13 ","pages":"Article 100120"},"PeriodicalIF":0.0,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Acylbenzo[b]thiophenes, benzofurans and indoles via intramolecular oxidative cyclization enabled by photocatalytic hydrogen atom transfer (HAT) 通过光催化氢原子转移 (HAT) 分子内氧化环化合成酰基苯并[b]噻吩、苯并呋喃和吲哚

Tetrahedron chem Pub Date : 2025-01-04 DOI: 10.1016/j.tchem.2025.100119

Fen-Dou Wang , Jin Jiang , Tiantian Xu , Wen-Chao Yang , Shu-Peng Zhang , Min Wang , Pinhua Li

引用次数: 0

A radical hydrohaloalkylation of the ligand sphere of a chiral dehydroalanine Ni(II) complex: An asymmetric route to halogenated α-amino acid derivatives 手性脱氢丙氨酸镍(II)配合物配体球的自由基氢烷基化：卤化α-氨基酸衍生物的不对称途径

Tetrahedron chem Pub Date : 2024-12-31 DOI: 10.1016/j.tchem.2024.100118

Nadezhda V. Stoletova , Alexander F. Smol'yakov , Andrey A. Tyutyunov , Victor I. Maleev , Vladimir A. Larionov

{"title":"A radical hydrohaloalkylation of the ligand sphere of a chiral dehydroalanine Ni(II) complex: An asymmetric route to halogenated α-amino acid derivatives","authors":"Nadezhda V. Stoletova , Alexander F. Smol'yakov , Andrey A. Tyutyunov , Victor I. Maleev , Vladimir A. Larionov","doi":"10.1016/j.tchem.2024.100118","DOIUrl":"10.1016/j.tchem.2024.100118","url":null,"abstract":"<div><div>An asymmetric synthetic protocol for the access to chiral artificial halogenated α-amino acid (α-AA) derivatives was elaborated through the radical functionalization of a double bond in the ligand sphere of a robust chiral dehydroalanine Belokon's Ni(II) complex by hydrohaloalkylation reaction. A 4-cyano-pyrydine/B<sub>2</sub>Pin<sub>2</sub> system promoted the <em>in situ</em> generation of radicals from halocarbons (including the hetero halogen atoms) for the subsequent coupling with the Ni(II) complex, providing the desired complexes with the yields in the range of 40–65%. The further post-modification of the side AA chain allowed to obtain the complexes with cyclopropane ring and to substitute the bromine atom on hydrogen one as well. Exemplary, two enantiopure α-AAs, including (<em>S</em>)-2-amino-4,4,4-trichlorobutanoic acid, were isolated by an acidic decomposition of the single diastereomeric Ni(II) complexes along with the recovery of the chiral auxiliary.</div></div>","PeriodicalId":74918,"journal":{"name":"Tetrahedron chem","volume":"13 ","pages":"Article 100118"},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Direct selective azidation of C(sp3)−H groups C(sp3)−H基团的直接选择性叠氮化反应

Tetrahedron chem Pub Date : 2024-12-01 DOI: 10.1016/j.tchem.2024.100114

Artem A. Antonov , Konstantin P. Bryliakov

引用次数: 0