Oxo-Rhenium-Catalyzed Deoxydehydration of Polyols with Hydroaromatic Reductants
作者:Camille Boucher-Jacobs、Kenneth M. Nicholas
DOI:10.1021/acs.organomet.5b00226
日期:2015.5.26
the oxo-metal-catalyzed deoxydehydration of diols and polyols to produce olefins and the corresponding arenes. NH4ReO4 and MeReO3 are active catalysts for the reactions. The most effective of the hydroaromatic reductants is indoline, which is oxidized to indole. Yields for a variety of diols and polyols range from 35% to 99%. Two hydrogen donors, 1,3-cyclohexadiene and dihydroanthracene, engage in tandem
Highly Efficient InBr3 Catalyzed Michael Addition of Indoles to α,β-Unsaturated Esters
作者:Ping Liu、Wei Chen、Kai Ren、Lei Wang
DOI:10.1002/cjoc.201190011
日期:2010.12
A highlyefficient synthetic strategy toward Michaeladdition of indoles to α,β‐unsaturated esters has been developed using Lewis acid InBr3 as catalyst. The reactions generated 3‐substituted indoles in high yields with excellent regio‐selectivity in the presence of catalytic amount of InBr3 under mild reaction conditions. The method is simple, efficient and practical.