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Radical-Mediated Sulfonylarylation of Unactivated Alkynes via Intramolecular 1,4-(hetero)aryl Migration 通过分子内1,4-(杂)芳基迁移自由基介导的非活化炔的磺酰芳基化
ChemistryEurope Pub Date : 2025-06-23 DOI: 10.1002/ceur.202500121
Xu Zhang, Fushan Chen, Chen Zhu
{"title":"Radical-Mediated Sulfonylarylation of Unactivated Alkynes via Intramolecular 1,4-(hetero)aryl Migration","authors":"Xu Zhang,&nbsp;Fushan Chen,&nbsp;Chen Zhu","doi":"10.1002/ceur.202500121","DOIUrl":"https://doi.org/10.1002/ceur.202500121","url":null,"abstract":"<p>Radical-mediated difunctionalization of alkynes is an extensively explored strategy for diverse alkyne transformation and utilization. However, the direct difunctionalization of unactivated alkynes remains a significant challenge. In this study, a novel visible light-induced, redox-neutral sulfonylarylation of unactivated alkynes is reported, facilitated by a radical-mediated intramolecular 1,4-(hetero)aryl migration. Notably, this transformation enables the synthesis of a diverse array of multisubstituted vinyl sulfones, with tunable (<i>E</i>)- and (<i>Z</i>)-selectivity controlled by the wavelength of visible light. This method features mild reaction conditions, excellent regio- and stereoselectivity, and broad functional group compatibility.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129230","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
Supramolecular Aggregates of Amide- and Urea-Functionalized Nanographene 酰胺和尿素功能化纳米石墨烯的超分子聚集体
ChemistryEurope Pub Date : 2025-06-20 DOI: 10.1002/ceur.202500015
Haruka Moriguchi, Ryo Sekiya, Takeharu Haino
{"title":"Supramolecular Aggregates of Amide- and Urea-Functionalized Nanographene","authors":"Haruka Moriguchi,&nbsp;Ryo Sekiya,&nbsp;Takeharu Haino","doi":"10.1002/ceur.202500015","DOIUrl":"10.1002/ceur.202500015","url":null,"abstract":"<p>Controlling the morphology of supramolecular nanographene (NG) aggregates is challenging. This study confirms that amide- and urea-functionalized NG undergo self-assembly to form supramolecular aggregates with a morphology that depends on the incorporated functional group. Amide-functionalized NG forms stacked aggregates, whereas urea-functionalized NG organizes into network polymers. These distinct morphologies suggest that amide groups drive NG stacking, whereas urea groups support NG vertically and horizontally, likely owing to differences in the strengths of single and bifurcated N<span></span>H/O hydrogen bonds. Moreover, the functional group incorporated into NG influences the gelation properties of the system. Among the two tested systems, only urea-functionalized NG formed organogels, possibly because urea–urea hydrogen bonds, enable solvent-molecule trapping inside the network polymers formed in these NG systems. Thus, hydrogen bonds can regulate the morphology and function of supramolecular NG aggregates.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635612","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
The Azidofunctionalization of Alkenes 烯烃的叠氮官能化
ChemistryEurope Pub Date : 2025-06-17 DOI: 10.1002/ceur.202500140
Pierre Palamini, Jerome Waser
{"title":"The Azidofunctionalization of Alkenes","authors":"Pierre Palamini,&nbsp;Jerome Waser","doi":"10.1002/ceur.202500140","DOIUrl":"https://doi.org/10.1002/ceur.202500140","url":null,"abstract":"<p>The azidofunctionalization of alkenes has emerged as a powerful difunctionalization strategy, expanding the toolbox of synthetic chemistry. This transformation enables the simultaneous installation of an azide and a second functional group onto an alkene, facilitating access to diverse nitrogen-containing compounds. The azidofunctionalization is particularly valuable in pharmaceutical and materials chemistry, as azides serve as key intermediates in the synthesis of bioactive molecules and polymers. Various catalytic and radical-mediated approaches are developed. Photoredox catalysis, transition metal-mediated reactions, and hypervalent iodine chemistry have enabled regio- and stereoselective transformations under mild conditions. Radical-mediated methods, in particular, provide high efficiency and broad substrate scope, enabling the incorporation of azide groups even in complex molecular scaffolds. Recent advances have also explored enantioselective azidofunctionalization using chiral catalysts, opening new opportunities for the asymmetric synthesis of nitrogen-containing derivatives. This review provides a comprehensive overview of azidofunctionalization methodologies, highlighting the diverse functional groups that have been introduced in a single-step alongside an azide.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500140","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129146","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
Highly Electron-Donating Antiaromatic N,N′-Dimethyldiazaporphyrins via Reductive Dimethylation 通过还原二甲基化的高给电子反芳香N,N ' -二甲基重氮卟啉
ChemistryEurope Pub Date : 2025-06-17 DOI: 10.1002/ceur.202500109
Kohei Ohtake, Hideaki Takano, Hiroshi Shinokubo
{"title":"Highly Electron-Donating Antiaromatic N,N′-Dimethyldiazaporphyrins via Reductive Dimethylation","authors":"Kohei Ohtake,&nbsp;Hideaki Takano,&nbsp;Hiroshi Shinokubo","doi":"10.1002/ceur.202500109","DOIUrl":"https://doi.org/10.1002/ceur.202500109","url":null,"abstract":"<p>Ni(II) <i>N</i>,<i>N</i>′-dimethyl-5,15-diazaporhyrins are efficiently prepared through reductive dimethylation of 5,15-diazaporphyrin Ni(II) complexes with sodium dispersion in the presence of dimethyl sulfate. The obtained reduced diazaporphyrins exhibit highly upfield-shifted <sup>1</sup>H NMR spectra and narrowed HOMO–LUMO gaps originating from their distinct antiaromatic nature. The electrochemical analysis reveals their highly electron-donating property, which leads to the formation of a charge transfer (CT) complex with tetracyanoquinodimethane (TCNQ) as an electron acceptor. The CT complex of Ni(II) <i>N</i>,<i>N</i>′-dimethyl-10,20-diphenyl-5,15-diazaporphyrin with TCNQ exhibits alternate π-stacking orientation in the solid state. <i>N</i>,<i>N</i>′-Dimethyl-5,15-diazaporphyrins also interact with C<sub>60</sub> in the solid state to yield cocrystals.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129143","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
The Azidofunctionalization of Alkenes 烯烃的叠氮官能化
ChemistryEurope Pub Date : 2025-06-17 DOI: 10.1002/ceur.202500140
Pierre Palamini, Jerome Waser
{"title":"The Azidofunctionalization of Alkenes","authors":"Pierre Palamini,&nbsp;Jerome Waser","doi":"10.1002/ceur.202500140","DOIUrl":"https://doi.org/10.1002/ceur.202500140","url":null,"abstract":"<p>The azidofunctionalization of alkenes has emerged as a powerful difunctionalization strategy, expanding the toolbox of synthetic chemistry. This transformation enables the simultaneous installation of an azide and a second functional group onto an alkene, facilitating access to diverse nitrogen-containing compounds. The azidofunctionalization is particularly valuable in pharmaceutical and materials chemistry, as azides serve as key intermediates in the synthesis of bioactive molecules and polymers. Various catalytic and radical-mediated approaches are developed. Photoredox catalysis, transition metal-mediated reactions, and hypervalent iodine chemistry have enabled regio- and stereoselective transformations under mild conditions. Radical-mediated methods, in particular, provide high efficiency and broad substrate scope, enabling the incorporation of azide groups even in complex molecular scaffolds. Recent advances have also explored enantioselective azidofunctionalization using chiral catalysts, opening new opportunities for the asymmetric synthesis of nitrogen-containing derivatives. This review provides a comprehensive overview of azidofunctionalization methodologies, highlighting the diverse functional groups that have been introduced in a single-step alongside an azide.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500140","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129144","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
Highly Electron-Donating Antiaromatic N,N′-Dimethyldiazaporphyrins via Reductive Dimethylation 通过还原二甲基化的高给电子反芳香N,N ' -二甲基重氮卟啉
ChemistryEurope Pub Date : 2025-06-17 DOI: 10.1002/ceur.202500109
Kohei Ohtake, Hideaki Takano, Hiroshi Shinokubo
{"title":"Highly Electron-Donating Antiaromatic N,N′-Dimethyldiazaporphyrins via Reductive Dimethylation","authors":"Kohei Ohtake,&nbsp;Hideaki Takano,&nbsp;Hiroshi Shinokubo","doi":"10.1002/ceur.202500109","DOIUrl":"https://doi.org/10.1002/ceur.202500109","url":null,"abstract":"<p>Ni(II) <i>N</i>,<i>N</i>′-dimethyl-5,15-diazaporhyrins are efficiently prepared through reductive dimethylation of 5,15-diazaporphyrin Ni(II) complexes with sodium dispersion in the presence of dimethyl sulfate. The obtained reduced diazaporphyrins exhibit highly upfield-shifted <sup>1</sup>H NMR spectra and narrowed HOMO–LUMO gaps originating from their distinct antiaromatic nature. The electrochemical analysis reveals their highly electron-donating property, which leads to the formation of a charge transfer (CT) complex with tetracyanoquinodimethane (TCNQ) as an electron acceptor. The CT complex of Ni(II) <i>N</i>,<i>N</i>′-dimethyl-10,20-diphenyl-5,15-diazaporphyrin with TCNQ exhibits alternate π-stacking orientation in the solid state. <i>N</i>,<i>N</i>′-Dimethyl-5,15-diazaporphyrins also interact with C<sub>60</sub> in the solid state to yield cocrystals.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129147","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
Identification of Pyrrolizilactone Biosynthetic Gene Cluster with Unique Short-Chain Dehydrogenase Gene for 3-Methylproline Formation 具有3-甲基脯氨酸形成短链脱氢酶基因的吡咯利齐内酯生物合成基因簇的鉴定
ChemistryEurope Pub Date : 2025-06-16 DOI: 10.1002/ceur.202500099
Naoki Kato, Sayaka Hirosawa, Toshihiko Nogawa, Kiyomi Kinugasa, Tohru Taniguchi, Hiroyuki Osada, Shunji Takahashi
{"title":"Identification of Pyrrolizilactone Biosynthetic Gene Cluster with Unique Short-Chain Dehydrogenase Gene for 3-Methylproline Formation","authors":"Naoki Kato,&nbsp;Sayaka Hirosawa,&nbsp;Toshihiko Nogawa,&nbsp;Kiyomi Kinugasa,&nbsp;Tohru Taniguchi,&nbsp;Hiroyuki Osada,&nbsp;Shunji Takahashi","doi":"10.1002/ceur.202500099","DOIUrl":"https://doi.org/10.1002/ceur.202500099","url":null,"abstract":"<p>Natural products often incorporate nonproteogenic amino acids for diversifying their chemical structures and biological activities. Methylproline is one such building block found in bioactive natural products. Among these, tricyclic pyrrolizidinone compounds, including UCS1025A, CJ-16,264, and pyrrolizilactone, possess complex structures and distinct stereochemistry. The pyrrolizilactone biosynthetic gene cluster is identified in <i>Pleosporales</i> sp. RKB3564 through genome and transcriptome analyses. By comparing the absolute configuration and biosynthetic gene (<i>pzl</i>) cluster of pyrrolizilactone with those of UCS1025A, the biosynthetic pathway of pyrrolizilactone, including its stereochemical divergent steps, is proposed. The <i>pzl</i> cluster contains enzymes-encoding genes, including those of the short-chain dehydrogenase/reductase PzlF and <i>α</i>-ketoglutarate dioxygenase PzlG, responsible for the formation of 3-methylproline, a building block of the tricyclic pyrrolizidinone structure. Functional analyses using recombinant PzlF and PzlG demonstrates the conversion of <span>l</span>-isoleucine to 3-methylproline. Unlike known methylproline biosynthetic pathways, the standalone enzyme PzlF, which is derived from the reductase domain of a polyketide synthase-nonribosomal peptide synthetase hybrid enzyme, functions as a pyrroline carboxylate reductase. This article provides new insights into the biosynthesis of complex natural products and highlights the potential for discovering new enzymes through the analysis of biosynthetic pathways of natural products with unique chemical structures.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129124","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
Identification of Pyrrolizilactone Biosynthetic Gene Cluster with Unique Short-Chain Dehydrogenase Gene for 3-Methylproline Formation 具有3-甲基脯氨酸形成短链脱氢酶基因的吡咯利齐内酯生物合成基因簇的鉴定
ChemistryEurope Pub Date : 2025-06-16 DOI: 10.1002/ceur.202500099
Naoki Kato, Sayaka Hirosawa, Toshihiko Nogawa, Kiyomi Kinugasa, Tohru Taniguchi, Hiroyuki Osada, Shunji Takahashi
{"title":"Identification of Pyrrolizilactone Biosynthetic Gene Cluster with Unique Short-Chain Dehydrogenase Gene for 3-Methylproline Formation","authors":"Naoki Kato,&nbsp;Sayaka Hirosawa,&nbsp;Toshihiko Nogawa,&nbsp;Kiyomi Kinugasa,&nbsp;Tohru Taniguchi,&nbsp;Hiroyuki Osada,&nbsp;Shunji Takahashi","doi":"10.1002/ceur.202500099","DOIUrl":"https://doi.org/10.1002/ceur.202500099","url":null,"abstract":"<p>Natural products often incorporate nonproteogenic amino acids for diversifying their chemical structures and biological activities. Methylproline is one such building block found in bioactive natural products. Among these, tricyclic pyrrolizidinone compounds, including UCS1025A, CJ-16,264, and pyrrolizilactone, possess complex structures and distinct stereochemistry. The pyrrolizilactone biosynthetic gene cluster is identified in <i>Pleosporales</i> sp. RKB3564 through genome and transcriptome analyses. By comparing the absolute configuration and biosynthetic gene (<i>pzl</i>) cluster of pyrrolizilactone with those of UCS1025A, the biosynthetic pathway of pyrrolizilactone, including its stereochemical divergent steps, is proposed. The <i>pzl</i> cluster contains enzymes-encoding genes, including those of the short-chain dehydrogenase/reductase PzlF and <i>α</i>-ketoglutarate dioxygenase PzlG, responsible for the formation of 3-methylproline, a building block of the tricyclic pyrrolizidinone structure. Functional analyses using recombinant PzlF and PzlG demonstrates the conversion of <span>l</span>-isoleucine to 3-methylproline. Unlike known methylproline biosynthetic pathways, the standalone enzyme PzlF, which is derived from the reductase domain of a polyketide synthase-nonribosomal peptide synthetase hybrid enzyme, functions as a pyrroline carboxylate reductase. This article provides new insights into the biosynthesis of complex natural products and highlights the potential for discovering new enzymes through the analysis of biosynthetic pathways of natural products with unique chemical structures.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129129","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
Pnictogenium Ions as a Powerful Tool for the Synthesis of Three- and Five-Membered Interpnictogen Chains 烟原离子作为合成三元和五元烟原间链的有力工具
ChemistryEurope Pub Date : 2025-06-09 DOI: 10.1002/ceur.202500116
Lisa Zimmermann, Robert Szlosek, Christian Scholtes, Christoph Riesinger, Luis Dütsch, Ruth M. Gschwind, Manfred Scheer
{"title":"Pnictogenium Ions as a Powerful Tool for the Synthesis of Three- and Five-Membered Interpnictogen Chains","authors":"Lisa Zimmermann,&nbsp;Robert Szlosek,&nbsp;Christian Scholtes,&nbsp;Christoph Riesinger,&nbsp;Luis Dütsch,&nbsp;Ruth M. Gschwind,&nbsp;Manfred Scheer","doi":"10.1002/ceur.202500116","DOIUrl":"https://doi.org/10.1002/ceur.202500116","url":null,"abstract":"<p>The synthesis and characterization of novel three- and five-membered interpnictogen chain compounds are presented. In a systematic study, the heterodipnictogen complexes [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-EE′)] (<b>Mo</b><sub><b>2</b></sub><b>PAs</b>: E = P, E′ = As; <b>Mo</b><sub><b>2</b></sub><b>PSb</b>: E = P, E′ = Sb; <b>Mo</b><sub><b>2</b></sub><b>AsSb</b>: E = As, E′ = Sb) are reacted with <i>in situ</i> generated pnictogenium ions of a third pnictogen. Phosphenium ions insert into the As<span></span>Sb bond of <b>Mo</b><sub><b>2</b></sub><b>AsSb</b> to give [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>1:1:1:1</sup>-AsPPh<sub>2</sub>Sb)][TEF] (<b>1</b>) ([TEF]<sup>−</sup> = [Al{OC(CF<sub>3</sub>)<sub>3</sub>}<sub>4</sub>]<sup>−</sup>). In contrast, arsenium, stibenium, and bismuthenium ions, respectively, coordinate to the phosphorus atom of <b>Mo</b><sub><b>2</b></sub><b>PAs</b> and <b>Mo</b><sub><b>2</b></sub><b>PSb</b>. The obtained complexes [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-SbPAsCy<sub>2</sub>)][BArF<sub>24</sub>] (<b>2</b>), [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-AsPSbPh<sub>2</sub>)][BArF<sub>24</sub>] (<b>3</b>), and [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-EPBiPh<sub>2</sub>)][BArF<sub>24</sub>] (E = As (<b>5</b>), E = Sb (<b>6</b>)) all contain three different pnictogen atoms in a chain. To even elongate these chains, the stibenium substituted tetrahedranes <b>3</b> and [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-SbPSbPh<sub>2</sub>)][BArF<sub>24</sub>] (<b>4</b>) are reacted with an additional equivalent of <b>Mo</b><sub><b>2</b></sub><b>PAs</b> or <b>Mo</b><sub><b>2</b></sub><b>PSb</b> yielding novel five-membered chains of the type E-P-SbPh<sub>2</sub>-P-E′ (E = E′ = As (<b>7</b>); E = E′ = Sb (<b>8</b>); E = As, E = Sb (<b>9</b>)), with alternating pnictogen sequences. <b>7</b>–<b>9</b> are found to be only stable in the solid state whereas a rapid equilibration with their respective starting materials <b>3</b> or <b>4</b> and <b>Mo</b><sub><b>2</b></sub><b>PAs</b> or <b>Mo</b><sub><b>2</b></sub><b>PSb</b> is observed in solution.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129005","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
Pnictogenium Ions as a Powerful Tool for the Synthesis of Three- and Five-Membered Interpnictogen Chains 烟原离子作为合成三元和五元烟原间链的有力工具
ChemistryEurope Pub Date : 2025-06-09 DOI: 10.1002/ceur.202500116
Lisa Zimmermann, Robert Szlosek, Christian Scholtes, Christoph Riesinger, Luis Dütsch, Ruth M. Gschwind, Manfred Scheer
{"title":"Pnictogenium Ions as a Powerful Tool for the Synthesis of Three- and Five-Membered Interpnictogen Chains","authors":"Lisa Zimmermann,&nbsp;Robert Szlosek,&nbsp;Christian Scholtes,&nbsp;Christoph Riesinger,&nbsp;Luis Dütsch,&nbsp;Ruth M. Gschwind,&nbsp;Manfred Scheer","doi":"10.1002/ceur.202500116","DOIUrl":"https://doi.org/10.1002/ceur.202500116","url":null,"abstract":"<p>The synthesis and characterization of novel three- and five-membered interpnictogen chain compounds are presented. In a systematic study, the heterodipnictogen complexes [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-EE′)] (<b>Mo</b><sub><b>2</b></sub><b>PAs</b>: E = P, E′ = As; <b>Mo</b><sub><b>2</b></sub><b>PSb</b>: E = P, E′ = Sb; <b>Mo</b><sub><b>2</b></sub><b>AsSb</b>: E = As, E′ = Sb) are reacted with <i>in situ</i> generated pnictogenium ions of a third pnictogen. Phosphenium ions insert into the As<span></span>Sb bond of <b>Mo</b><sub><b>2</b></sub><b>AsSb</b> to give [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>1:1:1:1</sup>-AsPPh<sub>2</sub>Sb)][TEF] (<b>1</b>) ([TEF]<sup>−</sup> = [Al{OC(CF<sub>3</sub>)<sub>3</sub>}<sub>4</sub>]<sup>−</sup>). In contrast, arsenium, stibenium, and bismuthenium ions, respectively, coordinate to the phosphorus atom of <b>Mo</b><sub><b>2</b></sub><b>PAs</b> and <b>Mo</b><sub><b>2</b></sub><b>PSb</b>. The obtained complexes [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-SbPAsCy<sub>2</sub>)][BArF<sub>24</sub>] (<b>2</b>), [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-AsPSbPh<sub>2</sub>)][BArF<sub>24</sub>] (<b>3</b>), and [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-EPBiPh<sub>2</sub>)][BArF<sub>24</sub>] (E = As (<b>5</b>), E = Sb (<b>6</b>)) all contain three different pnictogen atoms in a chain. To even elongate these chains, the stibenium substituted tetrahedranes <b>3</b> and [{CpMo(CO)<sub>2</sub>}<sub>2</sub>(μ,η<sup>2:2</sup>-SbPSbPh<sub>2</sub>)][BArF<sub>24</sub>] (<b>4</b>) are reacted with an additional equivalent of <b>Mo</b><sub><b>2</b></sub><b>PAs</b> or <b>Mo</b><sub><b>2</b></sub><b>PSb</b> yielding novel five-membered chains of the type E-P-SbPh<sub>2</sub>-P-E′ (E = E′ = As (<b>7</b>); E = E′ = Sb (<b>8</b>); E = As, E = Sb (<b>9</b>)), with alternating pnictogen sequences. <b>7</b>–<b>9</b> are found to be only stable in the solid state whereas a rapid equilibration with their respective starting materials <b>3</b> or <b>4</b> and <b>Mo</b><sub><b>2</b></sub><b>PAs</b> or <b>Mo</b><sub><b>2</b></sub><b>PSb</b> is observed in solution.</p>","PeriodicalId":100234,"journal":{"name":"ChemistryEurope","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ceur.202500116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129022","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}
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