Patent ID: 8883872

Claim:
A functionalized bisacylphosphine oxide compound of formula (II), wherein R 1 is C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or Cl; R 2 is H, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or Cl: Y is —(CH 2 ) a — or —CH 2 —CHOH—CH 2 —; a is an integer 1-10; FG is Cl, Br, OH, SH, NH 2 , N 3 , COOH, COO − E + , COONH 2 , b is 0, 1 or 2; c is 1 or 2; R 3 is hydrogen or methyl; R 4 is C 1 -C 4 alkyl; R 5 and R 5a independently of each other are methyl, phenyl or ethoxy; E is a cation; provided that, if a is 1, FG is not