Carbocyclization Cascades of Allyl Ketenimines via Aza-Claisen Rearrangements of N-Phosphoryl-N-allyl-ynamides
摘要:
A series of carbocyclization cascades of allyl ketenimines initiated through a thermal aza-Claisen rearrangement of N-phosphoryl-N-allyl ynamides is described. Interceptions of the cationic intermediate via Meerwein-Wagner rearrangements and polyene-type cyclizations en route to fused bi- and tricyclic frameworks are featured.
Carbocyclization Cascades of Allyl Ketenimines via Aza-Claisen Rearrangements of N-Phosphoryl-N-allyl-ynamides
摘要:
A series of carbocyclization cascades of allyl ketenimines initiated through a thermal aza-Claisen rearrangement of N-phosphoryl-N-allyl ynamides is described. Interceptions of the cationic intermediate via Meerwein-Wagner rearrangements and polyene-type cyclizations en route to fused bi- and tricyclic frameworks are featured.
Carbocyclization Cascades of Allyl Ketenimines via <i>Aza-</i>Claisen Rearrangements of <i>N-</i>Phosphoryl-<i>N-</i>allyl-ynamides
作者:Kyle A. DeKorver、Xiao-Na Wang、Mary C. Walton、Richard P. Hsung
DOI:10.1021/ol300366e
日期:2012.4.6
A series of carbocyclization cascades of allyl ketenimines initiated through a thermal aza-Claisen rearrangement of N-phosphoryl-N-allyl ynamides is described. Interceptions of the cationic intermediate via Meerwein-Wagner rearrangements and polyene-type cyclizations en route to fused bi- and tricyclic frameworks are featured.