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Communication | Regular issue | Vol 43, No. 10, 1996, pp.2095-2098
Published online, 1st January, 1970
DOI: 10.3987/COM-96-7554
Ring Transformation of 3-Halo-1,2,4-triazines with α-Chlorocarbanions: A Novel Route to Pyrazoles with Sulfonyl, Sulfonamido and Sulfonyloxy Groups

Andrzej Rykowski and Danuta Branowska

*Institute of Chemistry, Agricultural University at Siedlce, 08-110 Siedlce, ul. 3-go Maja 54, Poland


A novel route to pyrazoles bearing sulfonyl, sulfonamido and sulfonyloxy groups at C-3 by ring cleavage reaction of 3-halo-6-phenyl-1,2,4-triazines (1a-b) with α-halocarbanions (2a-g) is described.