73305-96-1Relevant articles and documents
An Unambiguous Synthesis of Pyrazoles by Sulphur Extrusion from 1,2,6-Thiadiazines
Barluenga, Jose,Lopez-Ortiz, J. Francisco,Tomas, Miguel,Gotor, Vicente
, p. 1891 - 1895 (2007/10/02)
Di-imines (1) react with thionyl chloride and sulphur monochloride and dichloride giving different 1,2,6-thiadiazine S-oxides (3) and 1,2,6-thiadiazines (4), respectively.These last two compounds lead, by heating, to pyrazoles (6) via thermal extrusion of