Tandem Asymmetric Transformations: An Asymmetric 1,2-Migration from a Higher Order Zincate Coupled with a Stereoselective Homoaldol Reaction
作者:J. Christopher McWilliams、Joseph D. Armstrong、Nan Zheng、M. Bhupathy、R. P. Volante、Paul J. Reider
DOI:10.1021/ja962123i
日期:1996.1.1
Stereocontrolled addition of chiral, non-racemic amide homoenolates to t-Boc-(S)-phenylalaninal
作者:Joseph D. Armstrong、Frederick W. Hartner、Ann E. DeCamp、R.P. Volante、Ichiro Shinkai
DOI:10.1016/s0040-4039(00)60995-4
日期:1992.10
The reaction of chiral indanolamide homoenolates 4a and 4c with t-Boc-(S)-phenylalaninal 3 exclusively gave the non-chelation product in contrast to the propionate esterhomoenolate 7c, 1a which gives predominantly the chelation controlled product. However, the reaction of simple achiral amide homoenolates 7a and 7b with 3 was nonselective.