Selective Indium-Mediated 1,2,4-Pentatrien-3-ylation of Carbonyl Compounds for the Efficient Synthesis of Vinyl Allenols
作者:Jisu Park、Sung Hong Kim、Phil Ho Lee
DOI:10.1021/ol802073q
日期:2008.11.6
highly selective synthetic method of functionalized vinyl allenols was developed from the reactions of various carbonylcompounds with organoindium reagent in situ generated from indium and 1-bromopent-4-en-2-yne derivatives. Treatment of vinyl allenols with gold catalyst, dienophile, or indium trihalide produced the functionalized dihydrofuran, cyclohexene, or 2-halo-1,3-diene derivatives in good to
An Effective Diels-Alder Reaction of Vinyl Allenols with Dienophiles
作者:Subin Choi、Hoon Hwang、Phil Ho Lee
DOI:10.1002/ejoc.201001148
日期:2011.3
Vinylallenols obtained from reaction of aldehydes with vinyl propargyl bromide and indium underwent Diels-Alderreactions with a variety of symmetric and unsymmetric dienophiles in dichloromethane or toluene regioselectively, producing cyclohexenylmethyl alcohols possessing an exo methylene moiety in good to excellent yield.