<i>tert</i>-Buyldiphenylsilylethyl (“TBDPSE”): A Practical Protecting Group for Phenols
作者:Brian S. Gerstenberger、Joseph P. Konopelski
DOI:10.1021/jo048192u
日期:2005.2.1
A new protection group for phenols, the 2-(tert-butyldiphenylsilyl)ethyl (TBDPSE) group, has been prepared and investigated. Protection of a variety of substituted phenols proceeds in good to excellent yield. The group is stable to mild acid, base, hydrogenolysis conditions, and lithium/halogen exchange on the protected phenol. Removal is achieved with strong acid or standard fluoride treatment.
制备并研究了一种新的苯酚保护基,即2-(叔丁基二苯基甲硅烷基)乙基(TBDPSE)。各种取代苯酚的保护均以良好至极佳的收率进行。该基团对弱酸,碱,氢解条件以及受保护的苯酚上的锂/卤素交换稳定。去除可通过强酸或标准氟化物处理实现。