Stereoselective synthesis of 4- or 5-substituted 2-benzyl- and 2-benzoylpyrrolidines by means of anodic oxidation of δ-alkenylamines
作者:Masao Tokuda、Tohru Miyamoto、Hirotake Fujita、Hiroshi Suginome
DOI:10.1016/s0040-4020(01)87064-2
日期:——
The anodic oxidation of the lithium amides of δ-alkenylamines 6a, 6b, 6c, 10a, and 10b gave stereoselectively cis-5-substituted 2-benzyl-1-methylpyrrolidines (7a,7b,7c) and 4-substituted 2-benzyl-1-methyl-pyrrolidines (11a, 11b) in high yields. The anodic oxidation of N-methoxyl compounds of δ-alkenylamines (12a, 12b) gave 5-substituted 2-benzoyl-1-methylpyrrolidines (13a, 13b).
δ-alkenylamines的锂酰胺的阳极氧化6a,图6b,图6c,图10a,和图10b给出立体选择性顺-5-取代的2-苄基-1- methylpyrrolidines(7A,7B,7C)和4-取代的2-苄基1-甲基吡咯烷(11a,11b)高产率。δ-烯基胺的N-甲氧基化合物的阳极氧化(12a,12b)得到5-取代的2-苯甲酰基-1-甲基吡咯烷(13a,13b)。