申请人:Ciba-Geigy Corporation
公开号:US05340701A1
公开(公告)日:1994-08-23
Fluorine-free titanocene compounds of the formula I or II ##STR1## in which both R.sub.1 radicals are preferably, independently of one another, cyclopentadienyl.sup..crclbar., which is unsubstituted or substituted by alkyl,alkoxy or --Si(R.sub.2).sub.3, and both R.sub.2 radicals are, in particular, alkyl, ##STR2## Z is --NR.sub.10 --, --0-- or --S--, Y is Cl, Br, I, CN, SCN, --O--CO--CH.sub.3, --O--CO--phenyl or --O--SO.sub.2 --CH.sub.3, n is 1 or 2, m is 0 or 1, where the sum of n and m must be 2, R.sub.3, R.sub.4 and R.sub.5 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, --NR.sub.8 R.sub.9, phenyl, phenylthio or C.sub.1 -C.sub.10 alkoxy, or R.sub.3, R.sub.4 and R.sub.5 are alkenyl, alkoxy, cycloalkoxy, phenoxy, benzyloxy, tetrahydrofurfuryloxy, alkylthio, cycloalkylthio, benzylthio or phenylthio, where R.sub.3 and R.sub.4 are not simultaneously hydrogen, and if Q is a pyrimidyl radical, at least one radical R.sub.3 or R.sub.4 is alkoxy, cycloalkoxy, phenoxy, benzyloxy, tetrahydrofurfuryloxy or alkenyloxy, and if Z is --NR.sub.10 --, R.sub.3 and R.sub.4 are Cl Br or I, both radicals R.sub.6, independently of one another, are alkyl or alkenyl or both radicals R.sub.6 together with the nitrogen atom to which they are bonded, form a morpholino radical, R.sub.7 is alkyl, cycloalkyl or phenyl, R.sub.8 is phenyl or .alpha.-tertiary C.sub.4 -C.sub.6 alkyl, R.sub.9 is, in particular, hydrogen, alkyl, cycloalkyl, phenyl or a ##STR3## radical, where, in addition, the two R.sub.9 radicals in --N(R.sub.9).sub.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, R.sub.10 is as defined for R.sub.9 or additionally, in particular, is phenyl which is unsubstituted or substituted by Cl, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.10 alkoxy, C.sub.1 -C.sub.8 alkylthio, phenylthio, morpholino or --N(C.sub.1 -C.sub.4 alkyl).sub.2, X is --O--, --S--, ##STR4## methylene or ethylene, and A is C.sub.1 -C.sub.12 alkylene or --X--A--X-- is a direct bond, are suitable as photoinitiators for photopolymerisation of compounds containing ethylenically unsaturated double bonds.
化学式I或II的无氟二茂钛化合物
在其中,两个R.sub.1基团最好是独立的环戊二烯基.sup..crclbar.,它们未取代或被烷基、烷氧基或--Si(R.sub.2).sub.3取代,两个R.sub.2基团特别是烷基,
Z是--NR.sub.10 --,--O--或--S--,Y是Cl、Br、I、CN、SCN、--O--CO--CH.sub.3、--O--CO--苯基或--O--SO.sub.2 --CH.sub.3,n为1或2,m为0或1,其中n和m的总和必须为2,
R.sub.3、R.sub.4和R.sub.5特别是独立的氢、Cl、烷基、环烷基、莽丹基、苯基、吡啶基或联苯基,这些基团未取代或被烷基、Cl、烷硫基、--NR.sub.8 R.sub.9、苯基、苯硫基或C.sub.1 -C.sub.10烷氧基取代,或者R.sub.3、R.sub.4和R.sub.5是烯基、烷氧基、环烷氧基、苯氧基、苄氧基、四氢呋喃基氧基、烷硫基、环烷硫基、苄硫基或苯硫基,其中R.sub.3和R.sub.4不同时为氢,如果Q是嘧啶基团,至少一个基团R.sub.3或R.sub.4是烷氧基、环烷氧基、苯氧基、苄氧基、四氢呋喃基氧基或烯基氧基,如果Z是--NR.sub.10 --,R.sub.3和R.sub.4是Cl、Br或I,两个基团R.sub.6,独立地,是烷基或烯基,或两个基团R.sub.6与它们结合的氮原子一起形成吗哪啡基团,R.sub.7是烷基、环烷基或苯基,R.sub.8是苯基或.alpha.-三级C.sub.4 -C.sub.6烷基,R.sub.9特别是氢、烷基、环烷基、苯基或一个##STR3##基团,此外,在--N(R.sub.9).sub.2中的两个R.sub.9基团相同或不同,并且与它们结合的氮原子一起可以形成一个5-或6-成员的杂环,除了氮原子外,还可以包含进一步的氮、氧或硫原子,R.sub.10如R.sub.9定义或额外地,特别是苯基,未取代或被Cl、C.sub.1 -C.sub.12烷基、C.sub.1 -C.sub.10烷氧基、C.sub.1 -C.sub.8烷硫基、苯硫基、哪啡基或--N(C.sub.1 -C.sub.4烷基).sub.2取代,X是--O--、--S--、##STR4##亚甲基或乙烯基,A是C.sub.1 -C.sub.12亚烯基或--X--A--X--是直接键,适用于具有乙烯基不饱和双键的化合物的光聚合的光引发剂。