Utilization of Tetrabutylammonium Triphenyldifluorosilicate as a Fluoride Source for Silicon−Carbon Bond Cleavage
作者:Anthony S. Pilcher、Philip DeShong
DOI:10.1021/jo960922d
日期:1996.1.1
Tetrabutylammonium triphenyldifluorosilicate (TBAT) can be employed as a fluoride source to cleave silicon-carbon bonds thus generating in situ carbanions that coupled with a variety of electrophiles, including aldehydes and ketones, in moderate to high yields. Among the examples reported is the first instance of fluoride-induced intermolecular coupling between allyltrimethylsilane and imine derivatives
可以将四丁基三苯基二氟硅酸铵(TBAT)用作氟化物源,以裂解硅碳键,从而以适中至高收率的原位产生碳负离子,并与包括醛和酮在内的各种亲电试剂偶联。在报道的实例中,是烯丙基三甲基硅烷和亚胺衍生物之间氟化物诱导的分子间偶联的第一个实例。同样,应特别注意的是伯烷基卤化物与烯丙基三甲基硅烷的TBAT引发偶联。TBAT是一种易于处理的结晶固体,与作为氟化物源的四丁基氟化铵(TBAF)相比,具有多个优点;它是无水的,不吸湿的,可溶于最常用的有机溶剂中,并且比TBAF碱性弱。