PURPOSE: To obtain a novel substd. valineamide deriv. that is effective as a preventing agent for harmful pests, especially as a bactericide and fungicide.
CONSTITUTION: This compd. is expressed by formula I, wherein R1 is i-propyl or s-butyl, R2 is Cl, methyl, ethyl or methoxy, and for example, the compd. is N-(i-propyl-oxicarbonyl)-L-valine-4-methoxyphenyl ethylamine. The compd. is obtd. by the reaction of a substd. amino acid expressed by formula II or its deriv. having activated carboxyl groups with an amine expressed by formula III in the presence of a catalyst (such as dimethyl aminopyridine) and an acid binder (such as triethylamine) in an inert diluent (such as acetone) at a temp. of -78 to 120°C. The obtd. compd. is especially suitable to protect tomatoes from phytophthora and grapes from Plasmopara.
DETOREFU BORUBEBAA
BIRUHERUMU BURANDESU
HAINTSUUBIRUHERUMU DEENE
