C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 487/04 (2006.01) C07D 209/00 (2006.01) C07D 223/00 (2006.01) C07D 239/00 (2006.01) C07D 487/00 (2006.01) C07D 519/00 (2006.01) G03F 7/004 (2006.01) G03F 7/029 (2006.01) G03F 7/031 (2006.01)
Patent
CA 2459374
Compounds of the formula I R7"N-R6 RS-C,N-R4 H C, R'/ I R, 3 R 2 (I) in which R, is an aromatic or heteroaromatic radical which is capable of absorbing light in the wave-length range from 200 nm to 650 nm and which is unsubstituted or substituted one or more times by C,-C,8alkyl, C2-C,ealkenyl, C2-C,8alkynyl, C,-C,ehaloalkyl, N02, NR,OR , CN, OR,2, SR,2, C(O)R,3, C(O)OR,4, halogen or a radical of the formula II R.sim.-N' R6 1 R5-C,N.R4 H I C - R3 I R2 (II) and which on absorption brings about a photoelimination which leads to the generation of an amidine group, R2 and R3 independently of one another are hydrogen, C,-C,ealkyl or phenyl which is unsubstituted or is substituted one or more times by C,-C,8alkyl, CN, OR,2, SR,2, halogen or C,- C,ehaloalkyl; R5 is C,-C,ealkyl or NR8R9; R4, R6, R, R8, R9, R,o and R inde- pendently of one another are hydrogen or C,-C,8alkyl; or R4 and R6 together form a C2-C,2alkylene bridge which is unsubstituted or is substituted by one or more C1-C4alkyl radicals; or R5 and R,, independently of R4 and R6, together form a C2-C,2alkylene bridge which is unsubstituted or is substituted by one or more C1-C4alkyl radicals; or, if R5 is a radi-cal NR8R9, R, and R9 together form a C2-C,2alkylene bridge which is unsubstituted or is sub- stituted by one or more C1-C4alkyl radicals; and R,2, R,3 and R,4 independently of one another are hydrogen or C,-C,ealkyl; are suitable as photoinitiators for compounds which react under base catalysis.
La présente invention concerne des composés de formule (I) dans laquelle R représente un radical aromatique ou hétéroaromatique pouvant absorber la lumière dans la plage de longueur d'onde comprise entre 200 nm et 650 nm et substitué ou non une ou plusieurs fois par alkyle C¿1?-C¿18?, alcényle C¿2?-C¿18?, alcynyle C¿2?-C¿18?, haloalkyle C¿1?-C¿18?, NO¿2?, NR¿10?R¿11?, CN, OR¿12?, SR¿12?, C(O)R¿13?, C(O)OR¿14?, halogène ou un radical de formule (II) et qui, lors de l'absorption, entraîne une photoélimination qui conduit à la génération d'un groupe amidine, R¿2? et R¿3?, indépendamment l'un de l'autre, représentent hydrogène, alkyle C¿1?-C¿18? ou phényle substitué ou non une ou plusieurs fois par alkyle C¿1?-C¿18?, CN, OR¿12?, SR¿12?, halogène ou haloalkyle C¿1?-C¿18?; R¿5? représente alkyle C¿1?-C¿18? ou NR¿8?R¿9?; R¿4?, R¿6?, R¿7?, R¿8?, R¿9?, R¿10? et R, indépendamment l'un de l'autre, représentent hydrogène ou alkyle C¿1?-C¿18?; ou R¿4? et R¿6?? ¿forment ensemble un pont alkylène C¿2?-C¿12? substitué ou non par un ou plusieurs radicaux alkyles C¿1?-C¿4?; ou R¿5? et R¿7?, indépendamment de R¿4? et R¿6?, forment ensemble un pont alkylène C¿2?-C¿12? substitué ou non par un ou plusieurs radicaux alkyles C¿1?-C¿4?; ou, si R¿5? représente un radical NR¿8?R¿9?, R¿7? et R¿9? forment ensemble un pont alkylène C¿2?-C¿12? substitué ou non par un ou plusieurs radicaux alkyles C¿1?-C¿4?; et R¿12?, R¿13? et R¿14?, indépendamment l'un de l'autre, représentent hydrogène ou alkyle C¿1?-C¿18?. Lesdits composés sont utiles comme photoamorceurs pour des composés qui réagissent lors d'une catalyse basique.
Baudin Gisele
Dietliker Kurt
Jung Tunja
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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