Synthesis of stereoisomerically pube (E)-1,5-diyn-3-enes and (E)-1-bromo-3-yn-1-enes by diastereoselective palladium-catalyzed cross-coupling reaction of 1-alkynylzinc chlorides with a stereoisomeric mixture of 1,2-dibromoethylene.
作者:Adriano Carpita、Renzo Rossi
DOI:10.1016/s0040-4039(00)94272-2
日期:——
CARPITA A.; ROSSI R., TETRAHEDRON LETT., 27,(1986) N 36, 4351-4354
作者:CARPITA A.、 ROSSI R.
DOI:——
日期:——
ANDREINI, BIANCA PATRIZIA;BENETTI, MASSIMILIANO;CARPITA, ADRIANO;ROSSI, R+, GAZZ. CHIM. ITAL., 118,(1988) N 6, C. 469-474
The effect of vicinyl olefinic halogens on cross-coupling reactions using Pd(0) catalysis
作者:Michael G. Organ、Haleh Ghasemi、Cory Valente
DOI:10.1016/j.tet.2004.08.006
日期:2004.10
products reliably under all reaction conditions. Compound 5 did not provide cross coupled products under any of the reaction conditions used. The Negishi reaction was the only one that worked for templates 4 and 11. Studies indicate that oxidative addition of the most reactive carbon–halogenbond to Pd(0) is followed by elimination of the second halide, when the second halide is a bromide or an iodide