NEW MATERIAL:The compound of formulaI[R1 is H, halogen, nitro, lower alkyl, lower alkynyl, etc.; n is 1W3; R2 is lower alkyl, lower alkenyl, lower alkynyl, etc.; R3 is group of formula II (R4 is H, propargyl, benzyl, etc.; R5 is H, methyl, Cl, etc.; t is 1W2; R6 is H, ethynyl or nitrile; X is O, S, etc.), group of R7-CH3- (R7 is phthalimido, thiophthalimido, etc.), etc.].
EXAMPLE: 5'-Propargyl-2'-methyl-3'-furylmethyl α-isopropyl-( m-acetylanilino )acetate.
USE: Insecticide for dusting use.
PROCESS: The compound of formulaIcan be prepared by reacting the carboxylic acid of formula III or its reactive derivative with the alcohol of formula R3-OH or its reactive derivative in a proper solvent, if necessary in the presence of an organic or inorganic base or an acid as an acid acceptor or a catalyst, if necessary under heating.
NAKAJIMA MINORU
FUJITA TOSHIO
