ISOXAZOLE,PYRAZOLE,PYRIMIDINE AND OTHER DERIVATIVES AND COMPOSITIONS CONTAINING THEM

摘要

Trihalomethyl heterocyclics, parasiticides. New cpds.: (where X1, X2 and X3 are halogen atoms, pref. all =F; Q is a heterocyclic system; Z is a hydrazono gp. or an alkylidene or arylidene gp.) are active against many insects and acarids. They are also active against cryptogams. Some are active herbicides and anti-virals (e.g. tobacco mosaic virus). Prefd. cpds. are: (where X is O or NR; R is H or alkyl; A is phenyl opt. substd. by one or more halogen, NO2, CN, carboxylic esters, sulphonic ester, (substd.) amino, alkyl, alkoxy or carboxyalkyl).