Practical Cleavage of Acetals by Using an Odorless Thiol Immobilized on Silica
作者:Mylène de Léséleuc、Andrew Kukor、Shaun D. Abbott、Boulos Zacharie
DOI:10.1002/ejoc.201901239
日期:2019.11.30
A practical, efficient and general method was developed for the deprotection of a variety of aromatic and aliphatic acetals to their corresponding catechol or diol derivatives using thiol functionalized on silica gel. This is an application for the well‐known commercial solid‐supported thiol (Silia MetS ® Thiol). The procedure is mild and amenable to scale‐up. It does not require inert atmosphere and
Metal-Free Deprotection of Terminal Acetonides by Using tert-Butyl Hydroperoxide in Aqueous Medium
作者:Kandikere Prabhu、Mahagundappa Maddani
DOI:10.1055/s-0030-1259917
日期:2011.4
as an inexpensive reagent a useful methodology for the regioselective and chemoselective deprotection of terminal acetonide groups in aqueous medium is developed. A variety of acetonide derivatives on reaction with aqueous tert-butyl hydroperoxide in water:tert-butanol (1:1) furnish the corresponding acetonide deprotected diols in good yields. A large number of acid labile protecting functional groups
Vinyl ether lipids with cleavable hydrophlic headgroups
申请人:Thompson David H.
公开号:US06979460B1
公开(公告)日:2005-12-27
A novel amphiphilic lipid compound having a cleavable, vinyl ether linked hydrophilic headgroup is described. Also described are liposomes containing the vinyl ether lipid compound, which may be triggered to release their contents and/or permeablize or fuse with target lipid membranes. The cleavable vinyl ether linkage allows the hydrophilic headgroup to be dissociated from the hydrophobic tailgroup(s) of the lipid compound to facilitate phase transitions in the lipid bilayer.