Reactivity of alpha-acylated beta-enamino ketones and esters: Synthesis of pyrazoles

被引：19

作者：

Missio, LJ ^{[1
]}

Braibante, HS ^{[1
]}

Braibante, MEF ^{[1
]}

机构：

[1] UNIV FED SANTA MARIA,DEPT QUIM,BR-97119900 SANTA MARIA,RS,BRAZIL

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 1996年 / 33卷 / 04期

关键词：

D O I：

10.1002/jhet.5570330441

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The reactivity of the enamino compounds 4-amino-3-phenylamino(thio)carbonyl-3-penten-2-one 1 and 2 and ethyl 3-amino-2-phenylamino(thio)carbonyl-2-butyrate 7 and 8 was studied using the reaction with hydrazine hydrate and hydrazine hydrochloride to evaluate the 1,3 electrophilic center of the compounds by the formation of the pyrazole rings. The pyrazoles 3, 4, 5, 9, 11 and 13 were obtained depending on the reaction conditions employed.

引用

页码：1243 / 1245

页数：3

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