Synthetic applications of the amino-Cope rearrangement: enantioselective synthesis of some tetrahydropyrans
作者:Steven M. Allin、Robert D. Baird、Roger J. Lins
DOI:10.1016/s0040-4039(02)00760-8
日期:2002.6
We report a novel and enantioselective approach to 2,4-disubstituted tetrahydropyrans that utilises the asymmetric amino-Cope rearrangement as a key synthetic step.
Utilizing the Asymmetric Amino-Cope Rearrangement as a Novel Approach to Enantiomerically Enriched 3-Substituted Aldehydes
作者:Steven M. Allin、Catarina Horro-Pita、Munira Essat、Ian Aspinall、Pritom Shah
DOI:10.1080/00397910903318666
日期:2010.8.16
We report the asymmetric amino-Cope rearrangement of some novel 3-amino-1,5-diene substrates to yield enantiomerically enriched 3-alkyl and 3-aryl aldehyde products. We have developed a system that gives excellent and comparable levels of product enantiomeric excess (ee) for both alkyl- and aryl-substituted products. Our results have implications for the control of the mechanistic pathway of the amino-Cope rearrangement and thus its potential utility in asymmetric synthesis.