626244-81-3Relevant academic research and scientific papers
3-methylthio-pyrano[4,3-c]pyrazol-4(2H)-ones from 3-(bis-methylthio)methylene-2H-pyran-2,4-diones and hydrazines
Li, Yu-Xin,Wang, You-Ming,Yang, Xiao-Ping,Wang, Su-Hua,Li, Zheng-Ming
, p. 342 - 344 (2003)
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 was described. The mechanism of formation was also discussed. It is a useful intermediate in the synthesis of a variety of important heterocyclic molecules.
