The effect of focused microwaves on the reaction of ethyl N-trichloroethylidenecarbamate with pyrazole derivatives

被引：15

作者：

Carrillo, JR ^{[1
]}

Díaz-Ortiz, A ^{[1
]}

de la Hoz, A ^{[1
]}

Gómez-Escalonilla, MJ ^{[1
]}

Moreno, A ^{[1
]}

Prieto, P ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Fac Quim, Dept Q Organ, E-13071 Ciudad Real, Spain

来源：

TETRAHEDRON | 1999年 / 55卷 / 31期

关键词：

microwave heating; imines; pyrazoles; substitution;

D O I：

10.1016/S0040-4020(99)00508-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Under microwave irradiation vinylpyrazoles react with ethyl N-trichloroethylidene carbamate 1 to give the addition to the imine system through the conjugated vinyl group. Likewise, compound 1 react with the NH group of pyrazolylhydrazones, if present. To the best of our knowledge this reaction type has not been described before and only can be performed under microwave irradiation. By classical heating, in the absence of microwaves, only dimerization or decomposition of the pyrazole derivatives is observed in these reactions. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：9623 / 9630

页数：8

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