| 摘要 |
<p>Compounds of the formula II, and III
wherein R 1 , R 2 , R' 2 and R"' 2 for example are C 1 -C 20 alkyl; R 3 , R 4 , and R 5 for example independently of one another are hydrogen or a defined substituent provided that at least one of R 3 , R 4 or R 5 is other than hydrogen or C 1 -C 20 alkyl; R 6 , R 7 , R 8 , R' 6 , R' 7 , R' 8 , R" 6 , R" 7 , R"' 6 and R"' 7 for example independently of one another have one of the meanings as given for R 3 , R 4 , and R 5 ; and R 9 for example is C 1 -C 20 alkyl; exhibit an unexpectedly good performance in photopolymerization reactions.</p> |
