Tetrabutylammonium Fluoride (TBAF)-Catalyzed Addition of Substituted Trialkylsilylalkynes to Aldehydes, Ketones, and Trifluoromethyl Ketones
作者:Venkat Reddy Chintareddy、Kuldeep Wadhwa、John G. Verkade
DOI:10.1021/jo200314g
日期:2011.6.3
efficient catalyst for the addition of trialkylsilylalkynes to aldehydes, ketones, and trifluoromethyl ketones in THF solvent at room temperature. The reaction conditions are mild and operationally simple, and a variety of aryl functional groups, such as chloro, trifluoromethyl, bromo, and fluoro groups, are tolerated. Impressively, using our protocol, useful CF3-bearing tertiary propargylic alcohols
本文我们报道,四丁基氟化铵(TBAF)是一种非常有效的催化剂,用于在室温下在THF溶剂中将三烷基甲硅烷基炔烃添加到醛,酮和三氟甲基酮中。反应条件温和且操作简单,并且可以耐受各种芳基官能团,例如氯,三氟甲基,溴和氟基。令人印象深刻的是,使用我们的协议,有用的CF 3可以合成含叔炔丙醇。产品产量通常优于或可与文献中的相媲美。1-苯基-2-三甲基甲硅烷基乙炔,三甲基(((4-(三氟甲基)苯基)乙炔基)硅烷,1-三甲基甲硅烷基-1-己炔和三甲基(噻吩-3-基乙炔基)硅烷经过清洁转化为相应的炔丙醇我们条件下的产品。杂环羰基化合物,例如呋喃-3-羧醛,噻吩-3-羧醛和2-吡啶基酮,可得到良好的炔丙醇收率。