V-TRIAZOLE COMPOUNDS POSESSING A METHYL GROUP IN THE 4-POSITION

摘要

1307171 Triazoles CIBA-GEIGY AG 19 April 1971 [23 March 1970] 24952/71 Headings C2C and C2P [Also in Divisions C3 and D1] Novel triazoles of general formula wherein Z denotes hydroxyl, benzoxy optionally substituted by C 1-4 alkyl or alkoxy or by halogen, C 1-4 alkoxy or alkylthio, dialkylamino with C 1-4 alkyl substituents, a morpholino or piperidino radical optionally substituted by methyl, or a dialkylphosphono radical with 1-4 carbon atoms per alkyl part, R 1 denotes C 1-4 alkyl, or phenyl optionally substituted by C 1-4 alkyl or alkoxy or by halogen, and R 3 denotes a 3- phenylcoumarinyl-(7) group, of which the phenyl group may contain non-chromophoric substituents, are prepared by methods known per se, or when Z is benzoxy, the products are prepared by reacting a compound of general formula with a compound of formula R 2 CO-O-COR 2 at 100‹ C. or more. The products have optical brightening properties.