| abstract |
The present invention relates to a cyclopentadione oxime ester compound, an intermediate thereof, and a process for producing the same, and the cyclopentane ketone oxime ester compound comprises the structural formula I, IIa, IIb, III or IV. The above structural formula includes a molecular group such as Ar 1 , Ar 2 , Y 1 , Z 1 , R 1 , R 15 , R 16 , R 20 , wherein Ar 1 is a substituted ortho-arylene or o-heteroarylene; Ar 2 is a di- ortho-arylene or a di-o-heteroarylene group bonded in various ways; Y 1 is O, S, NR 20 , BR 20 , CR 15 R 16 , SiR 15 R 16 , S=O, C= O; Z 1 is a linear, C 1 -C 10 alkylene group, arylene group; R 1 , R 15 , R 16 , R 20 , each of which is a hydrogen atom, an alkyl group or an alkyl group, and is an arbitrary group. Substituted alkyl or alkoxy, cycloalkyl, aryl substituted with any group, acyl group. The present invention also relates to a photocurable composition and a photocurable composition preparation method using the cyclopentadione oxime ester compound as a photoinitiator, and a method for preparing a color filter and a color filter. |