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3-Methylthio-pyrano[4,3-c]pyrazol-4(2H)-ones from 3-(bis-methylthio)methylene-2H-pyran-2,4-diones and hydrazines

Authors :
Li, Yu-Xin
Wang, You-Ming
Yang, Xiao-Ping
Wang, Su-Hua
Li, Zheng-Ming
Source :
Heteroatom Chemistry; 2003, Vol. 14 Issue: 4 p342-344, 3p
Publication Year :
2003

Abstract

A useful synthesis of 3-methylthio-6-methyl-pyrano[4,3-c]pyrazol-4(2H)-ones via 3-(bis-methylthio)methylene-5,6-dihydro-6-alkyl(aryl)-2H-pyran-2,4-dione with hydrazine as well as methyl and phenyl hydrazines is described and the mechanism of the formation is discussed. © 2003 Wiley Periodicals, Inc. Heteroatom Chem 14:342–344, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.10158

Details

Language :
English
ISSN :
10427163 and 10981071
Volume :
14
Issue :
4
Database :
Supplemental Index
Journal :
Heteroatom Chemistry
Publication Type :
Periodical
Accession number :
ejs4639530
Full Text :
https://doi.org/10.1002/hc.10158