On the enhancement of stereoselection by cooperation between chiral auxiliaries. Asymmetric diels-alder reactions with fumaric acid bis ((S)-proline benzyl ester) amide
作者:H. Waldmann、M. Dräger
DOI:10.1016/s0040-4039(01)80696-1
日期:1989.1
Fumaric acid bis ((S)-proline benzyl ester) amide reacts with cyclopentadiene in thermal and Lewis acid catalyzed Diels-Alderreactions to give the cycloadducts with high yields and diastereomeric ratios up to 100:1.