tetrahydro-3,5-bis[[3-(trifluoromethyl)phenyl]methylene]-4H-thiopyran-4-one-1,1-dioxide 、
丙基肼 以
甲醇 、 pentoxide 为溶剂,
生成 2-propyl-7-(3-trifluoromethyl-benzylidene)-3-(3-trifluoromethyl-phenyl)-2,3,3a,4,6,7-hexahydro-thiopyrano[4,3-
c]pyrazole 5,5-dioxide