Phosphine photoinitiators and intermediates

摘要

Compounds of the formula I in which
Ar
is a group or Ar is cyclopentyl, cyclohexyl, naphthyl, biphenylyl, anthracyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring, where the radicals cyclopentyl, cyclohexyl, naphthyl, biphenylyl, anthracyl or O-, S- or N-containing 5- or 6-membered heterocyclic ring are unsubstituted or substituted by halogen, C1-C4alkyl and/or C1-C4alkoxy;
R1 and R2 independently of one another are C1-C20alkyl, OR11, CF3 or halogen;
R3, R4 and R5 independently of one another are hydrogen, C1-C20alkyl, OR11 or halogen; or in each case two of the radicals R1, R2, R3, R4 and/or R5 together form C1-C20alkylene, which can be interrupted by O, S or NR14;
R6, R7, R8, R9 and R10 independently of one another are hydrogen, C1-C20alkyl; C2-C20alkyl which is interrupted once or more than once by nonconsecutive O atoms and which can be substituted by OH and/or SH; or R6, R7, R8, R9 and R10 are OR11, phenyl or halogen;
R11 is hydrogen, C1-C20alkyl, C2-C20alkenyl, C3-C8cycloalkyl, phenyl, benzyl or C2-C20alkyl which is interrupted once or more than once by O or S and which is unsubstituted or is substituted by OH and/or SH;
R14 is hydrogen, phenyl, C1-C12alkyl or C2-C12alkyl which is interrupted once or more than once by O or S and which can be substituted by OH and/or SH; and
M is hydrogen, Li, Na or K,
are intermediates in the preparation of novel unsymmetrical bisacylphosphine oxide and monocylphosphine oxide photoinitiators.