Studies of ring-closing mode of 4-hydroxy-2-vinylidenebutanoates: 5-exo-trig versus 5-endo-dig
作者:Shinji Kitagaki、Daisuke Shibata、Chisato Mukai
DOI:10.1016/j.tetlet.2007.01.037
日期:2007.3
The ring-closing mode of benzyl 4-hydroxy-2-vinylidenebutanoates (5-exo-trig vs 5-endo-dig) could precisely be controlled in a highly selective manner by the proper choice of conditions (solvent and base). (c) 2007 Elsevier Ltd. All rights reserved.