Process for the preparation of tiazolo - (1,3) tiazino (2,3-c) - (1,2,4) triazinones with Selective herbicidal effect.

摘要

Process for the preparation of tiazolo - 1.3 - 2.3 - and tiazino 1,2,4 triazinones C, of General formula (i), in which R 1 represents a radical alcohilo C 1 C 6 - or a radical acid ester alcohilcarboxilico 2; R represents Hydrogen, a radical alcohilo C 1 - C 6 or a Hydrocarbon radical Ring Matico 3; R represents Hydrogen,The benzyl radical and a hydroxyl Group; R represents Hydrogen or a 4 benzyl radical; and N represents 0 OR 1. Consists in reacting compounds of General formula (ii) with compounds of General formula (iii) in the presence of bases, taking r 1, R 2, r r 3, 4 and N The meanings already mentioned. Application against Weeds hardly compatible.