| abstract |
Compounds of formulas I, II, III and IV: (see formulas (I), (II), (III) and (IV)), in which Ch1 is (see formula) Ch2 is (see formula); Het1 is, for example, furyl, thienyl, pyrrolyl, pyridyl, benzothienyl, quinolyl or bitienyl, each of which is optionally substituted; Het2 and Het2 'are furylene, thienylene, pyrrolylene, benzothienylene, quinolylene, furylenecarbonyl, thienylenecarbonyl, benzothienylenecarbonyl or bitienylenecarbonyl; each of which is optionally substituted; Ar1 and Ar1 'are phenyl, naphthyl, benzoyl or naphthoyl, each of which is optionally substituted; Ar2 is, for example, phenylene, optionally substituted; M is C1-C20-alkylene; R1 is, for example, C1-C12 alkyl or phenyl; R2 and R2 'are, for example, hydrogen or C1-C20alkyl; unexpectedly exhibit a good performance in light curing reactions. |