Patent ID: 6277986
Filing Date: 2001-08-21
Classification: B33Y,C07D,C08K,C08L

Abstract:
An organic compound of formula II ##STR54##R.sub.1 is an aromatic or heteroaromatic radical which is capable of absorbing light in the wavelength range from 200 to 650 nm and in doing so brings about cleavage of the adjacent carbon-nitrogen bond;R.sub.2 and R.sub.3 independently of one another are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.3 -C.sub.18 alkenyl, C.sub.3 -C.sub.18 alkynyl or phenyl and, if R.sub.2 is hydrogen or C.sub.1 -C.sub.18 alkyl, R.sub.3 is additionally a group --CO--R.sub.14 in which R.sub.14 is C.sub.1 -C.sub.18 alkyl or phenyl;or R.sub.1 and R.sub.3, together with the carbonyl group and the C atom to which R.sub.3 is attached, form a benzocyclopentanone radical;R.sub.15 and R.sub.16 independently of one another are hydrogen or C.sub.1 -C.sub.18 alkyl;R.sub.4 and R.sub.6 together form a C.sub.2 -C.sub.12 alkylene bridge;R.sub.5 and R.sub.7 together, independently of R.sub.4 and R.sub.6, form a C.sub.2 -C.sub.12 alkyene bridge, or R.sub.5 is --NR.sub.15 R.sub.16, andR.sub.16 and R.sub.7 together form a C.sub.2 -C.sub.12 alkylene bridge.