PREPARATION OF 3(5)-PHENYL-1-HYDROXYPYRAZOLE 2-OXIDE AND 4-METHYL-3(5)-PHENYL-1-HYDROXYPYRAZOLE 2-OXIDE

被引：5

作者：

HANSEN, JF

LUTHER, ML

机构：

[1] Department of Chemistry 4160, Illinois State University, Normal, Illinois

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 1993年 / 30卷 / 04期

关键词：

D O I：

10.1002/jhet.5570300461

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Nitrosation of acrylophenone oxime or of methacrylophenone oxime with n-butyl nitrite in the presence of pyridine and copper(II) sulfate gives the copper complexes of the title compounds. The free 1-hydroxypyrazole 2-oxides are isolated by treating the copper complexes with dilute sodium hydroxide, filtration, and acidification of the basic filtrates. The title compounds are the first examples of 1-hydroxypyrazole 2-oxides in which the C3(5) ring position is unsubstituted.

引用

页码：1163 / 1165

页数：3

共 10 条

[1]

EASTER JA, 1988, THESIS ILLINOIS STAT

[2]

FADDA AA, 1991, INDIAN J CHEM B, V30, P749

[3] NITROSATION OF ALPHA,BETA-UNSATURATED OXIMES .5. SYNTHESIS AND CHEMISTRY OF 1-HYDROXYPYRAZOLE 2-OXIDES [J].