Highly selective synthesis of (E)-N-aryl-N-(1-propenyl) ethanamides via isomerization of N-allyl ethanamides catalyzed by ruthenium complexes
作者:Stanislaw Krompiec、Mariola Pigulla、Wojciech Szczepankiewicz、Tadeusz Bieg、Nikodem Kuznik、Katarzyna Leszczynska-Sejda、Maciej Kubicki、Teresa Borowiak
DOI:10.1016/s0040-4039(01)01457-5
日期:2001.10
A convenient and highly selective method of synthesis of (E)-N-aryl-N-(1-propenyl)ethanamides via isomerization of respective N-allyl-N-arylethanamides catalyzed by [RuClH(CO)(PPh3)(3)] has been described. N-Allyl-N-arylethanamides have been obtained by allylation of respective N-arylethanamides under PTC conditions. It is proposed that the observed selectivity of the double bond migration to (E)-enamides is due to the interaction of the arene ring with the Ru atom in the transition state. (C) 2001 Elsevier Science Ltd. All rights reserved.