Ring Transformation of 3-Halo-1,2,4-triazines with a-Chlorocarbanions: A Novel Route to Pyrazoles with Sulfonyl, Sulfonamido and Sulfonyloxy Groups
作者:Andrzej Rykowski、Danuta Branowska
DOI:10.3987/com-96-7554
日期:——
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 alpha- halocarbanions (2a-g) is described.