作者:Masahisa Nakada、Yosuke Hosoya、Kota Mizoguchi、Honoka Yasukochi
DOI:10.1055/a-1733-6073
日期:2022.3
We have developed a palladium-catalyzed thiocarbonylation through the reaction of a σ-alkyl palladium intermediate with carbon monoxide and a triisopropylsilyl (TIPS) thioether. The use of CsF, (IPr)Pd(allyl)Cl [IPr =1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene], CO, and a TIPS thioether in THF are key to obtaining alkyl and aryl thioesters in high yields. The yield of the palladium-catalyzed thiocarbonylation
我们通过 σ-烷基钯中间体与一氧化碳和三异丙基甲硅烷基 (TIPS) 硫醚的反应开发了钯催化的硫代羰基化反应。在 THF 中使用 CsF、(IPr)Pd(allyl)Cl [IPr =1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene]、CO 和 TIPS 硫醚是获得烷基和芳基的关键高产率的硫酯。钯催化的硫代羰基化的产率取决于底物的结构;indoline-2-one 衍生物的形成速度比 indoline 衍生物快。苯甲酰和氢化肉桂酰氟与 TIPSSPh 和 CsF 的反应也产生相应的硫酯。