163224-98-4Relevant articles and documents
Preparation of Trifluoromethylated Pyrazoles and 1,4-Thiazine 1,1-Dioxides from Trifluoromethylated Sulfone Derivatives
Takahashi, Masahiko,Chigira, Keiko
, p. 207 - 210 (2007/10/02)
Trifluoromethylated sulfones, 3-amino-2-arylsulfonyl-4,4,4-trifluoro-3-hydroxybutanenitrile (3) and 3-(aroylmethyl)sulfonyl-1,1,1-trifluoropropane-2,2-diols 12, were prepared and cyclized to 4-arylsulfonyl-5-trifluoromethyl-3-hydrazinopyrazoles 9 and 5-arylsulfonyl-3-trifluoromethyl-3-hydroxy-2,3-dihydro-4H-1,4-thiazine 1,1-dioxides 13, respectively.