Reduction of alkyl and vinyl sulfonates using the CuCl2·2H2O–Li–DTBB(cat.) system
作者:Gabriel Radivoy、Francisco Alonso、Yanina Moglie、Cristian Vitale、Miguel Yus
DOI:10.1016/j.tet.2005.01.078
日期:2005.4
The reduction of a series of alkyl mesylates, dimesylates and triflates to the corresponding hydrocarbons was efficiently performed using a reducing system composed of CuCl2 center dot 2H(2)O, an excess of lithium sand and a catalytic amount (5 mol%) of 4,4'-di-tertbutylbiphenyl (DTBB), in tetrahydrofuran at room temperature. The process was also applied to enol and dienol triflates affording alkenes and dienes, respectively. The use of the deuterated copper salt CuCl2 center dot 2D(2)O allowed the simple preparation of the corresponding deuterated products. (c) 2005 Elsevier Ltd. All rights reserved.