A convenient titanium-mediated intermolecular alkyne–carbonate coupling reaction
摘要:
A direct diastereoselective titanium-mediated intermolecular coupling of internal alkynes with dialkyl carbonates under Kulinkovich-type reaction conditions is presented. The influence of the structures of the coupling partners on the yields and regioselectivities of this transformation is described. (C) 2009 Elsevier Ltd. All rights reserved.
1,3-dimethyl 2-oxo 1,3,2-diazaphospholidine precursor of (Z) α,β-unsaturated esters.
作者:Carl Patois、Philippe Savignac
DOI:10.1016/s0040-4039(00)79655-9
日期:1991.3
alpha,beta-Unsaturated esters of (Z) geometry are selectively obtained from cyclic phosphonocarboxylates derived from N,N'-dimethylethylenediamine.
A convenient titanium-mediated intermolecular alkyne–carbonate coupling reaction
作者:Andrzej Wolan、Frédéric Cadoret、Yvan Six
DOI:10.1016/j.tet.2009.07.015
日期:2009.9
A direct diastereoselective titanium-mediated intermolecular coupling of internal alkynes with dialkyl carbonates under Kulinkovich-type reaction conditions is presented. The influence of the structures of the coupling partners on the yields and regioselectivities of this transformation is described. (C) 2009 Elsevier Ltd. All rights reserved.