Possible rearrangements during the syntheses of di- and trisubstituted pyrazoles

The reaction of ethoxymethylene malononitrile and ethoxymethylene cyanoacetic acid ethylester with substituted hydrazines to substituted 5-aminopyrazoles is described. The influence of different substituents on possible migrations during the ring closure was studied.

Saved in:
Bibliographic Details
Published inMonatshefte für Chemie Vol. 129; no. 12; pp. 1313 - 1318
Main Authors Reidlinger, C, Dworczak, R, Junek, H, Graubaum, H
Format Journal Article
LanguageEnglish
Published VIENNA Springer Nature 01.12.1998
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
1,4,5-trisubstituted pyrazoles
4,5-disubstituted pyrazoles
ethoxymethylene malononitrile
acyl migration
rearrangement
ethoxymethylene cyanoacetic acid ethylester
Online AccessGet full text

Cover

More Information
Summary:The reaction of ethoxymethylene malononitrile and ethoxymethylene cyanoacetic acid ethylester with substituted hydrazines to substituted 5-aminopyrazoles is described. The influence of different substituents on possible migrations during the ring closure was studied.
ISSN:0026-9247
DOI:10.1007/s007060050154