Intramolecular Trapping of Esters by 1-Lithio-1-bromocyclopropanes
作者:Mark S. Baird、Florian A.M. Huber、Viacheslav V. Tverezovsky、Ivan G. Bolesov
DOI:10.1016/s0040-4020(00)00385-9
日期:2000.6
Reaction of 2-acyloxymethyl-1,1-dibromocyclopropanes with methyllithium at -90 degrees C leads to selective bromine-lithium exchange and intramolecular cyclisation to give a 1-bromo-3-oxabicyclo[3.1.0]hexan-2-ol. (C) 2000 Elsevier Science Ltd. All rights reserved.
Chiral ring a synthons for vitamin d synthesis
作者:Stephen R. Wilson、M. Serajul Haque、A.M. Venkatesan、Paul A. Zucker