Dechuang Niu, Arseni Kostenko, John A. Kelly, Debotra Sarkar, Huihui Xu and Shigeyoshi Inoue
{"title":"CO2 hydrosilylation catalyzed by an N-heterocyclic carbene (NHC)-stabilized stannyliumylidene†","authors":"Dechuang Niu, Arseni Kostenko, John A. Kelly, Debotra Sarkar, Huihui Xu and Shigeyoshi Inoue","doi":"10.1039/D4SC07116F","DOIUrl":null,"url":null,"abstract":"<p >The di-N-heterocyclic carbene (NHCs) stabilized stannyliumylidene, [<small><sup>Mes</sup></small>TerSn(IMe<small><sub>4</sub></small>)<small><sub>2</sub></small>][BArF], (<small><sup>Mes</sup></small>Ter = 2,6-Mes<small><sub>2</sub></small>C<small><sub>6</sub></small>H<small><sub>3</sub></small>, Mes = 2,4,6-Me<small><sub>3</sub></small>-C<small><sub>6</sub></small>H<small><sub>2</sub></small>, IMe<small><sub>4</sub></small> = 1,3,4,5-tetramethylimidazol-2-ylidene, BArF = (3,5-(CF<small><sub>3</sub></small>)<small><sub>2</sub></small>-C<small><sub>6</sub></small>H<small><sub>5</sub></small>)<small><sub>4</sub></small>B), was isolated from the reaction of (<small><sup>Mes</sup></small>Ter)SnCl with two equivalents of IMe<small><sub>4</sub></small>, followed by one equivalent of Na[BArF]. This stannyliumylidene acts as a precatalyst for the homogeneous hydrosilylation of CO<small><sub>2</sub></small>. Experimental mechanistic studies and quantum chemical calculations have been conducted to elucidate the catalytically active species and the mechanism for the transformation, revealing the stannyliumylidene [<small><sup>Mes</sup></small>TerSn(CO<small><sub>2</sub></small>IMe<small><sub>4</sub></small>)<small><sub>2</sub></small>][BArF], which is formed in the presence of CO<small><sub>2</sub></small>, as the catalytically active species.</p>","PeriodicalId":9909,"journal":{"name":"Chemical Science","volume":" 9","pages":" 4014-4022"},"PeriodicalIF":7.4000,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/sc/d4sc07116f?page=search","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Science","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/sc/d4sc07116f","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The di-N-heterocyclic carbene (NHCs) stabilized stannyliumylidene, [MesTerSn(IMe4)2][BArF], (MesTer = 2,6-Mes2C6H3, Mes = 2,4,6-Me3-C6H2, IMe4 = 1,3,4,5-tetramethylimidazol-2-ylidene, BArF = (3,5-(CF3)2-C6H5)4B), was isolated from the reaction of (MesTer)SnCl with two equivalents of IMe4, followed by one equivalent of Na[BArF]. This stannyliumylidene acts as a precatalyst for the homogeneous hydrosilylation of CO2. Experimental mechanistic studies and quantum chemical calculations have been conducted to elucidate the catalytically active species and the mechanism for the transformation, revealing the stannyliumylidene [MesTerSn(CO2IMe4)2][BArF], which is formed in the presence of CO2, as the catalytically active species.
期刊介绍：
Chemical Science is a journal that encompasses various disciplines within the chemical sciences. Its scope includes publishing ground-breaking research with significant implications for its respective field, as well as appealing to a wider audience in related areas. To be considered for publication, articles must showcase innovative and original advances in their field of study and be presented in a manner that is understandable to scientists from diverse backgrounds. However, the journal generally does not publish highly specialized research.
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