A convenient method to obtain 4,5-dihydro-1H-1-methylpyrazoles by a ring transformation reaction.

被引：25

作者：

Bonacorso, HG ^{[1
]}

Wastowski, AD ^{[1
]}

Zanatta, N ^{[1
]}

Martins, MAP ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Dept Quim, BR-97105900 Santa Maria, RS, Brazil

来源：

SYNTHETIC COMMUNICATIONS | 2000年 / 30卷 / 08期

关键词：

D O I：

10.1080/00397910008087174

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A convenient method for the synthesis of alkyl[aryl]-substituted 5-hydroxy-5-trifluoromethyl-4, 5-dihydro-1H-1-methylpyrazole (2) fiom a new ring transformation reaction of alkyl[aryl]-substituted-5-hydroxy-5-trifluoromethyl- 4,5-dihydro-1H-1-pyrazolethiocarboxyamide (1) with methylhydrazine in THF, and the thermal dehydration of 2, are reported.

引用

页码：1457 / 1465

页数：9

共 15 条

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