Nitropyrazoles 22. On reactivity of 3,5-dinitro-4-(phenylsulfonyl)pyrazole and its N-methyl derivative

3,5-Dinitro-4-(phenylsulfonyl)pyrazole ( 5 ) obtained by oxidation of 3,5-dinitro-4-(phenylthio)pyrazole with 30% H 2 O 2 in AcOH was involved into nucleophilic substitution reaction with thiophenol, which proceeded with substitution of the phenylsulfonyl group at position 4. N -Methyl-3,5-dinitro-4...

Full description

Saved in:
Bibliographic Details
Published in:Russian chemical bulletin 2012-02, Vol.61 (2), p.469-471
Main Authors: Vatsadze, I. A., Dalinger, I. L., Shkineva, T. K., Popova, G. P., Shevelev, S. A.
Format: Article
Language:English
Subjects:
Brief Communications
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Inorganic Chemistry
Organic Chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:3,5-Dinitro-4-(phenylsulfonyl)pyrazole ( 5 ) obtained by oxidation of 3,5-dinitro-4-(phenylthio)pyrazole with 30% H 2 O 2 in AcOH was involved into nucleophilic substitution reaction with thiophenol, which proceeded with substitution of the phenylsulfonyl group at position 4. N -Methyl-3,5-dinitro-4-(phenylsulfonyl)pyrazole obtained by methylation of 5 with dimethyl sulfate was involved into nucleophilic substitution reaction with thiophenol, p -bromophenol, and morpholine with the regioselective substitution of the nitro group at position 5 to form 5-R-3-nitro-4-(phenylsulfonyl)pyrazoles.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-012-0067-9