An Alternative Reaction Outcome in the Gold-Catalyzed Rearrangement of 1-Alkynyloxiranes
作者:María J. González、Jesús González、Rubén Vicente
DOI:10.1002/ejoc.201201191
日期:2012.11
The gold(III)-catalyzed rearrangement of tetrasubstituted 1-alkynyloxiranes is described. This transformation led to a different reaction outcome with respect to related substrates previously studied. Thus, tertiary α-alkynylketones or alkynols can be selectively obtained. Moreover, gold(III) proved capable to catalyze the rearrangement of simple epoxides. These results indicate that gold(III) complexes
描述了金 (III) 催化的四取代 1-炔基环氧乙烷的重排。这种转变导致了与先前研究的相关底物不同的反应结果。因此,可以选择性地获得叔α-炔基酮或炔醇。此外,金(III)被证明能够催化简单环氧化物的重排。这些结果表明金 (III) 配合物在这些转化中充当亲氧路易斯酸而不是 π 酸。