Bromination of 3-substituted benzo[b]thiophenes: access to Raloxifen intermediate
作者:François Liger、Stéphane Pellet-Rostaing、Florence Popowycz、Marc Lemaire
DOI:10.1016/j.tetlet.2011.05.043
日期:2011.7
A practical route to prepare halogeno-derivatives is described, starting from easily available 3-cyano-benzo[b]thiophene. Main efforts have been devoted to the optimization of the experimental procedures (solvent, bromination) to promote selectivity. Synthetic studies investigate the potential access to an advanced intermediate of Raloxifen.
描述了从容易获得的3-氰基-苯并[ b ]噻吩开始制备卤代衍生物的实用途径。为了优化选择性,主要致力于优化实验程序(溶剂,溴化)。合成研究调查了使用Raloxifen的高级中间体的潜在途径。