Fluorine-free titanocenes and the use thereof

Details Fluorine-free titanocenes and the use thereof Fluorine-free titanocenes and the use thereof

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C08F 2/50 (2006.01) C09D 5/32 (2006.01) C09D 11/10 (2006.01) G03F 7/029 (2006.01)

Patent

CA 2093611

A-19049/A Fluorine-free titanocenes and the use thereof Abstract Fluorine-free titanocene compounds of the formula I or II Image (II), in which both R1 radicals are preferably, independently of one another, cyclopentadienyl?, which is unsubstituted or substituted by alkyl,alkoxy or -Si(R2)3, and both R2 radicals are, in particular, alkyl, Q is a Image or Image radical, Z is -NR10-, -O- or -S-, Y is Cl, Br, I, CN, SCN, -O-CO-CH3, -O-CO-phenyl or -O-SO2-CH3, n is 1 or 2, m is 0 or1, where the sum of n and m must be 2, R3, R4 and R5 are in particular, independently of one another, hydrogen, Cl, alkyl, cycloalkyl, adamantyl, phenyl, pyrryl or biphenylyl, where these radicals are unsubstituted or substituted by alkyl, Cl, alkylthio, -NR8R9, phenyl, phenylthio or C1-C10alkoxy, or R3, R4 and R5 are alkenyl, alkoxy, cycloalkoxy, phenoxy, benzyloxy, tetrahydrofurfuryloxy, alkylthio, cycloalkylthio, benzylthio or phenylthio, where R3 and R4 are not - 2 - simultaneously hydrogen, and if Q is a pyrimidyl radical, at least one radical R3 or R4 is alkoxy, cycloalkoxy, phenoxy, benzyloxy, tetrahydrofurfuryloxy or alkenyloxy, and if Z is -NR10-, R3 and R4 are Cl, Br or I, both radicals R6, independently of one another, are alkyl or alkenyl or both radicals R6 together with the nitrogen atom to which they are bonded, form a morpholino radical, R7 is alkyl, cycloalkyl or phenyl, R8 is phenyl or .alpha.-tertiary C4-C6alkyl, R9 is, in particular, hydrogen, alkyl, cycloalkyl, phenyl or a Image radical, where,in addition, the two R9 radicals in -N(R9)2 are identical or different and, together with the nitrogen atom to which they are bonded, may form a 5- or 6-membered heterocyclic ring which, in addition to the nitrogen atom, may also contain further nitrogen, oxygen or sulfur atoms, R10 is as defined for R9 or additionally, in particular, is phenyl which is unsubstituted or substituted by C1, C1-C12alkyl, C1-C10alkoxy, C1-C8alkylthio, phenylthio, morpholino or -N(C1-C4alkyl)2, X is -O-, -S-. Image methylene or ethylene, and A is C1-C12alkylene or -X-A-X- is a direct bond, are suitable as photoinitiators for photopolymerisation of compounds containing ethylenically unsaturated double bonds.

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