STEREOSELECTIVE SYNTHESIS OF 4-PIPERIDONE AND 4-AMINOTETRAHYDROPYRIDINE DERIVATIVES BY THE IMINO DIELS-ALDER REACTION OF 2-AMINO-1,3-BUTADIENES

被引:35
作者
BARLUENGA, J
AZNAR, F
VALDES, C
CABAL, MP
机构
[1] Departamento de Química Organometálica, Facultad de Química, Universidad de Oviedo
关键词
D O I
10.1021/jo00064a030
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
2-Amino-4-(alkoxymethyl)-1,3-butadienes react smoothly with nonactivated aldimines derived from aromatic aldehydes in the presence of ZnCl2 as Lewis acid giving rise, with good yields and very high stereoselectivity, to substituted 4-aminotetrahydropyridines which upon hydrolysis yield 4-piperidone derivatives. Moreover, the stereochemistry of the cyclization process depends on the nature of the N-substituent of the imine.
引用
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页码:3391 / 3396
页数:6
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