The regioselective synthesis of spirooxindolo pyrrolidines and pyrrolizidines via three-component reactions of acrylamides and aroylacrylic acids with isatins and α-amino acids
作者:Tatyana L Pavlovskaya、Fedor G Yaremenko、Victoria V Lipson、Svetlana V Shishkina、Oleg V Shishkin、Vladimir I Musatov、Alexander S Karpenko
DOI:10.3762/bjoc.10.8
日期:——
The regioselective three-component condensation of azomethine ylides derived from isatins and alpha-amino acids with acrylamides or aroylacrylic acids as dipolarophiles has been realized through a one-pot 1,3-dipolar cycloaddition protocol. Decarboxylation of 2'-aroyl-2-oxo-1,1',2,2',5',6',7',7a'-octahydrospiro[indole-3,3'-pyrrolizine]-1'- carboxylic acids is accompanied by cyclative rearrangement
源自靛红和α-氨基酸的偶氮甲碱叶立德与作为偶极亲和物的丙烯酰胺或芳酰基丙烯酸的区域选择性三组分缩合已通过一锅 1,3-偶极环加成协议实现。2'-aroyl-2-oxo-1,1',2,2',5',6',7',7a'-octahydrospiro[indole-3,3'-pyrrolizine]-1'-羧酸的脱羧伴随环化重排形成二氢吡咯嗪基吲哚酮。