| abstract |
NEW MATERIAL: A compound of formula [X is F or H; R is H, halogen or 1-6C alkyl; R 1 to R 3 are each H, halogen, cyano, 1-6C alkyl, 6-10C aryl, etc.; Y is -CO-R 4 (R 4 is H, 1-6C alkyl, 6-10 aryl, etc.), but except for X=F, R=F, R 1 to R 3 =H, Y=-CO-OCH 3 and X=F, R=CH 3 , R 1 to R 3 =H, Y=-CO-OCH 3 ]. n USE: Synthesized intermediates for medicaments and plant protecting agents. n PROCESS: A compound of formula I is obtained by allowing fluoronitroalkane of formula II to react with α,β-unsaturated compound of formula III in the presence of an alkaline metal fluoride (e.g. potassium fluoride) in a solvent such as an acetonitryl, etc., at 0 to 25°C. n COPYRIGHT: (C)1989,JPO |