A Facile Access to Pyrroles from Amino Acids via an Aza-Wacker Cyclization
作者:Zuhui Zhang、Jintang Zhang、Jiajing Tan、Zhiyong Wang
DOI:10.1021/jo800433b
日期:2008.7.1
A facile and efficient synthesis of pyrrolesfrom readily available amino acids is described. The key step in the method is an aza-Wacker oxidative cyclization catalyzed by palladium(II)/Cu(OTf)2. A series of pyrroles were obtained by this method under mild conditions.
Stereoselective synthesis of dihydroisocoumarin moiety of microbial agent AI-77-B: a Diels-Alder based strategy
作者:Arun K. Ghosh、John Cappiello
DOI:10.1016/s0040-4039(98)01977-7
日期:1998.11
dihydroisocoumarin fragment of the gastroprotective natural product AI-77-B has been synthesized in optically active form by using a regiospecific Diels-Alder reaction of 1-methoxy-1,3-cyclohexadiene and an acetylenic ester derivative, prepared stereoselectively from leucinal.