Regioselective Rh-Catalyzed Allylic Amination/Ring-Closing Metathesis Approach to Monocyclic Azacycles: Diastereospecific Construction of 2,5-Disubstituted Pyrrolines
作者:P. Andrew Evans、John. E. Robinson
DOI:10.1021/ol991064l
日期:1999.12.1
[formula: see text] Regioselectiverhodium-catalyzedallylicamination followed by ring-closing metathesis, using the Grubbs' catalyst, provides an expeditious route to monosubstituted azacycles. The enantiomerically enriched allylamine 1 can also be resubjected to the reaction sequence with (R)- and (S)-2b to facilitate the diastereospecific construction of 2,5-disubstituted pyrrolines 3/4.