| 摘要 |
NEW MATERIAL:A compound shown by formula I (R is lower haloalkyl; with the proviso that a case where R is difluoromethyl is omitted). EXAMPLE:1-( 2-Fluoro-5-nitrophenyl )-3-methyl-4-(1,1,2,2-tetrafluoroethyl)-DELTA<2>-1,2,4- triazolin-5-one. USE:An intermediate for producing agricultural chemicals. PREPARATION:A compound shown by formula X is reacted with a compound shown by formula IX (R<2> is lower alkyl; A is O or S) under heating, then subjected to ring closure reaction in the presence of a base and further reacted with a compound shown by the formula R-Z (Z is Cl, Br or I) to give a triazolinone shown by formula II (R<1> is lower haloalkyl), which is reacted with equimolar amount or excess amount of 1.0-2.0mol based on the triazolinone of a compound shown by the formula M.F (M is alkali metal) in an inert solvent such as dimethyl sulfone, etc., under heating at 50-250 deg.C for 0.5-10hr to give a compound shown by formula I.
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