Dehydrative Thiolation of Allenols: Indium vs Gold Catalysis
摘要:
Intermolecular additions of thiols to allenols via formal S(N)2' selectivity to produce functionalized dienes are described. Although this dehydrative reaction was initially developed using gold(I) catalysis, indium(III) proves to be a far superior catalyst in terms of selectivity and substrate scope.
Subtle Electronic Effects in Metal-Free Rearrangement of Allenic Alcohols
作者:Venkata R. Sabbasani、Phani Mamidipalli、Huijie Lu、Yuanzhi Xia、Daesung Lee
DOI:10.1021/ol400331r
日期:2013.4.5
and stereoselective rearrangement of allenic alcohols to (E,E)-1,3-dien-2-yl triflates and chlorides was developed under metal-free conditions. Subtle electronic effects of the alkyl and aryl substituents on the carbon bearing the hydroxyl group has a profound impact on the reaction rate and efficiency such that vinyl triflates were obtained from electron-deficient substrates and trimethylsilyl triflate
Dehydrative Thiolation of Allenols: Indium vs Gold Catalysis
作者:S. Webster、P. C. Young、G. Barker、G. M. Rosair、A.-L. Lee
DOI:10.1021/jo502648w
日期:2015.2.6
Intermolecular additions of thiols to allenols via formal S(N)2' selectivity to produce functionalized dienes are described. Although this dehydrative reaction was initially developed using gold(I) catalysis, indium(III) proves to be a far superior catalyst in terms of selectivity and substrate scope.