Transformations of 2-trifluoroacetyl-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridines by the action of ethyl propynoate. A novel synthesis of 2-trifluoroacetyl-4,7,8,9-tetrahydro-1H-pyrrolo[2,3-d]azocines
作者:L. G. Voskresenskii、T. N. Borisova、T. A. Vorob’eva、O. V. Grishachkina、L. N. Kulikova、A. I. Chernyshev、A. V. Varlamov
DOI:10.1134/s1070428006120165
日期:2006.12
2-Trifluoroacetyl-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridines reacted with ethyl propynoate in acetonitrile and methanol to give ethyl 2-trifluoroaceyl-4,7,8,9-tetrahydro-1H-pyrrolo[2,3-d]azocine-5-carboxylates. The reactions of 2-trifluoroacetyl-1-vinyl-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridines with ethyl propynoate in alcohols were accompanied by cleavage of the tetrahydropyridine fragment with formation of alkyl 3-benzyl [2-(3-alkoxy-5-trifluoroacetyl-1-vinyl-1H-pyrrol-2-yl)ethyl] amino} acrylates.