Fluorone and pyronin y derivatives
First Claim
1. A photohardenable composition comprising a polymerizable compound and a compound of the formula I or II ##STR13## where R1, R2, R5 and R6 are the same or different and represent a hydrogen atom or a halogen atom and R1 and R2 can combine to form a ring;
- R3 and R4 are the same or different and represent a hydrogen atom, a halogen atom, a benzoyl group, a group of the formula --L(CH2)n R8 where n is 1 to 8, R8 is hydrogen, hydroxy, amino, dialkylamino, --COR16 or --COOR14 where R16 is hydrogen, chlorine, COCl, C1-C8 alkyl, NR2 or aryl and R14 is hydrogen, C1-C8 alkyl, aryl, COR, 2,4-dinitrophenyl, N-imido or NR2 and L is a direct bond or >
C═
O, provided that at least two of R1 -R6 are iodo or bromo;
W is ═
O or ═
NR2 +Z-- where R is hydrogen or lower alkyl, Z is a counter ion, when W is ═
O, W1 is hydrogen or --OR9 where R9 is hydrogen, C1-C8 alkyl, acyl or a group of the formula --(CH2)n R10 where n is 1 to 8 and R10 is amino, dialkylamino, hydroxy, acryloyl or methacryloyl and when W is ═
NR2 +Z--, W1 is hydrogen or --NR2 ;
Y is oxygen, sulfur, selenium, tellurium, >
C═
O, or N--R13 where R13 is 4-methylphenyl, A is hydrogen, alkenyl, alkyl, or an electron withdrawing group (EWG) selected from the group consisting of COOR11, COR12, C(O)OCOR11, CONR2, CN, NO2, NCS, NCO, SO2 R12, SO3 R11, SO2 NR2, CX32 ;
R11 is hydrogen, alkyl, aryl, or aralkyl R12 is hydrogen, alkyl, aryl, or aralkyl, X2 can be the same or different and is a halogen atom.
1 Assignment
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Accused Products
Abstract
The present invention relates to a novel class of compounds which absorb light at wavelengths greater than 350 nm and are useful as fluorescers or as photoinitiators. The present invention provides compounds of the formulas (I) and (II) and their equivalents (the nomenclature of the compounds used herein is based on the numbering of positions as shown in formula (I)): ##STR1## where: when W is ═O, W1 is hydrogen or --OR9 and when W is ═NR+2, W is hydrogen or NR2+2, A is hydrogen, alkenyl, alkyl or an election withdrawing group, and the remaining groups are as defined in the disclosure.
183 Citations
13 Claims
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1. A photohardenable composition comprising a polymerizable compound and a compound of the formula I or II ##STR13## where R1, R2, R5 and R6 are the same or different and represent a hydrogen atom or a halogen atom and R1 and R2 can combine to form a ring;
- R3 and R4 are the same or different and represent a hydrogen atom, a halogen atom, a benzoyl group, a group of the formula --L(CH2)n R8 where n is 1 to 8, R8 is hydrogen, hydroxy, amino, dialkylamino, --COR16 or --COOR14 where R16 is hydrogen, chlorine, COCl, C1-C8 alkyl, NR2 or aryl and R14 is hydrogen, C1-C8 alkyl, aryl, COR, 2,4-dinitrophenyl, N-imido or NR2 and L is a direct bond or >
C═
O, provided that at least two of R1 -R6 are iodo or bromo;
W is ═
O or ═
NR2 +Z-- where R is hydrogen or lower alkyl, Z is a counter ion, when W is ═
O, W1 is hydrogen or --OR9 where R9 is hydrogen, C1-C8 alkyl, acyl or a group of the formula --(CH2)n R10 where n is 1 to 8 and R10 is amino, dialkylamino, hydroxy, acryloyl or methacryloyl and when W is ═
NR2 +Z--, W1 is hydrogen or --NR2 ;
Y is oxygen, sulfur, selenium, tellurium, >
C═
O, or N--R13 where R13 is 4-methylphenyl, A is hydrogen, alkenyl, alkyl, or an electron withdrawing group (EWG) selected from the group consisting of COOR11, COR12, C(O)OCOR11, CONR2, CN, NO2, NCS, NCO, SO2 R12, SO3 R11, SO2 NR2, CX32 ;
R11 is hydrogen, alkyl, aryl, or aralkyl R12 is hydrogen, alkyl, aryl, or aralkyl, X2 can be the same or different and is a halogen atom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- R3 and R4 are the same or different and represent a hydrogen atom, a halogen atom, a benzoyl group, a group of the formula --L(CH2)n R8 where n is 1 to 8, R8 is hydrogen, hydroxy, amino, dialkylamino, --COR16 or --COOR14 where R16 is hydrogen, chlorine, COCl, C1-C8 alkyl, NR2 or aryl and R14 is hydrogen, C1-C8 alkyl, aryl, COR, 2,4-dinitrophenyl, N-imido or NR2 and L is a direct bond or >
Specification