IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0255374
(1981-04-20)
|
우선권정보 |
JP-0053268 (1980-04-21) |
발명자
/ 주소 |
- Yamashita, Akio
- Hayami, Masaaki
|
출원인 / 주소 |
- Matsushita Electric Industrial Company, Limited
|
대리인 / 주소 |
Lowe, King, Price & Becker
|
인용정보 |
피인용 횟수 :
27 인용 특허 :
3 |
초록
▼
Styryl-like compounds showing improved stability and prolonged lifetime on repetition of the coloration and bleaching cycle and represented by the general formula ##STR## in which R represents an alkyl or phenyl group, R 1 and R 2 independently represent a lower alkyl group, a hydroxyalkyl group, or
Styryl-like compounds showing improved stability and prolonged lifetime on repetition of the coloration and bleaching cycle and represented by the general formula ##STR## in which R represents an alkyl or phenyl group, R 1 and R 2 independently represent a lower alkyl group, a hydroxyalkyl group, or an alkoxyalkyl group, R 3 represents hydrogen, an alkyl group, a halogen, a nitrile group, an aromatic group or a phenoxy group, Y represents O or S, Z represents an alkylene radical of 2 to 4 carbon atoms, with or without alkyl substituent(s), necessary for forming a ring structure together with ##STR## A represents a residue of an aromatic aldehyde, a heterocyclic aldehyde, an aromatic nitroso compound or a heterocyclic nitroso compound, and n is an integer of 2 or 3.
대표청구항
▼
1. A styryl-like compound showing a color-developing and bleaching behavior with improved stability and prolonged lifetime and represented by the general formula ##STR## in which R represents an alkyl or phenyl group, R 1 and R 2 independently represent a lower alkyl group, a hydroxyalkyl group, or
1. A styryl-like compound showing a color-developing and bleaching behavior with improved stability and prolonged lifetime and represented by the general formula ##STR## in which R represents an alkyl or phenyl group, R 1 and R 2 independently represent a lower alkyl group, a hydroxyalkyl group, or an alkoxyalkyl group, R 3 represents hydrogen, an alkyl group, a halogen, a nitrile group, an aromatic group or a phenoxy group, Y represents O or S, Z represents an alkylene radical or 2 to 4 carbon atoms, with or without alkyl substituent(s), necessary for forming a ring structure together with ##STR## A represents a residue of an aromatic aldehyde, selected from the group consisting of benzaldehyde, p-acetaminobenzaldehyde, p-bromobenzaldehyde, m-bromobenzaldehyde, o-bromobenzaldehyde, p-dimethylaminobenzaldehyde, p-diethylaminobenzaldehyde, p-dibutylaminobenzaldehyde, o-chlorobenzaldehyde, p-chlorobenzaldehyde, p-anisaldehyde, o-anisaldehyde, p-tolualdehyde, m-tolualdehyde, o-tolualdehyde, o-ethoxybenzaldehyde, p-ethoxybenzaldehyde, p-fluorobenzaldehyde, o-fluorobenzaldehyde, p-nitrobenzaldehyde, m-nitrobenzaldehyde, o-nitrobenzaldehyde, p-cyanobenzaldehyde, o-cyanobenzaldehyde, 2,4-dichlorobenzaldehyde, 2,6-dichlorobenzaldehyde, 3,4-dichlorobenzaldehyde, 3,5-dichlorobenzaldehyde, 2,4-dimethoxybenzaldehyde, 2,5-dimethoxybenzaldehyde, 3,4-dimethoxybenzaldehyde, 3,5-dimethoxybenzaldehyde, 2,4-dimethylbenzaldehyde, 2,5-dimethylbenzaldehyde, 3,4-dimethylbenzaldehyde, 3,5-dimethylbenzaldehyde, veratraldehyde(3,4-dimethoxybenzaldehyde), 4-isopropylbenzaldehyde, o-(2-chloroethyl)benzaldehyde, 2,4,6-trimethylbenzaldehyde(mesitylaldehyde), 2,4,6-triethoxybenzaldehyde, 3,4-dimethyl-p-anisaldehyde, 2,5-dimethyl-p-anisaldehyde, 2-chloro-5-nitrobenzaldehyde, 2-chloro-6-nitrobenzaldehyde, 2-chloro-3-nitrobenzaldehyde, 5-chloro-2-nitrobenzaldehyde, vanilin, o-vanilin, iso-vanilin, 5-bromo-vanilin, 2-chloro-4-dimethylaminobenzaldehyde, 2-chloro-6-fluorobenzaldehyde, 5-bromo-veratraldehyde, 6-bromo-veratraldehyde, 5-bromo-2-methoxybenzaldehyde, 1-naphthaladhyde, 2-naphthaladehyde, p-dimethylaminocinnamaldehyde, p-diethylcinnamaldehyde, p-nitrocinnamaldehyde, o-nitrocinnamaldehyde, 2-chlorocinnamaldehyde, 9-anthraldehyde, 10-chloro-9-anthraldehyde, 9-phenanthrenecarboxaldehyde and fluorencarboxaldehyde; a heterocyclic aldehyde, selected from the group consisting of furfural, 5-methylfurfural, 5-bromofurfural, 4-isopropylfurfural, 2-thiophenecarboxaldehyde, 5-methylthiophenecarboxaldehyde, 9-methoxythiophene-2-carboxaldehyde, 2-pyridinecarboxaldehyde, 3-pyridinecarboxaldehyde, 4-pyridinecarboxaldehyde, 1-ethylindole-3-carboxaldehyde, 1-methylindole-3-carboxaldehyde, 1-methyl-2-phenylindole-3-carboxaldehyde, N-methylcarbazole-2-carboxaldehyde, N-ethyl-7-bromocarbazole-2-carboxaldehyde, N-(n-octyl)-7-nitrocarbazole-2-carboxaldehyde, benzofuran-2-carboxaldehyde, dibenzofuran-2-carboxaldehyde, pyrrole-2-aldehyde, N-methylpyrrole-2-aldehyde, N-phenylpyrrole-2-aldehyde, 3-methylpyrrole-2-aldehyde, 2-ethylpyrrole-5-aldehyde, benzothiazole-2-aldehyde, 6-methylbenzothiazole-2-aldehyde, 6-chlorobenzothiazole-2-aldehyde, 5-chlorobenzothiazole-2-aldehyde, 6-methoxybenzothiazole-2-aldehyde, 5,6-dichlorobenzothiazole-2-aldehyde, benzoselenazole-2-aldehyde, 6-methoxybenzoselenazole-2-aldehyde, 2,4-dimethylpyrrole-2-aldehyde, 4,6-dichloropyrimidine-5-carboxaldehyde, 2-formyl-4,6-dimethylpyrimidine, quinoline-2-aldehyde, acridine-10-aldehyde, 2,4-diphenyl-5,6,7-hexahydrobenzopyran-8-carboxaldehyde, and 2,4-diphenyl-6-methyl-5,6,7-pentahydrobenzopyran-8-carboxaldehyde; an aromatic nitroso compound selected from the group consisting of p-dimethylaminonitrosobenzene, p-diethylaminonitrosobenzene, p-methylnitroxobenzene (p-nitrosotoluene), p-nitronitrosobenzene, o-nitronitrosobenzene, and 3-nitroso-2-nitrotoluene; or a heterocyclic nitroso compound selected from the group consisting of 3-nitrosoindole, 2-methyl-3-nitrosoindole (3-nitrosomethyl-ketol), 3-nitroso-2-phenylindole and the like, and n is an integer of 2 or 3. 2. A styryl-like compound according to claim 1, wherein the alkyl group for R has 1 to 8 carbon atoms. 3. A styryl-like compound according to claim 2, wherein said alkyl group is methyl. 4. A styryl-like compound according to claim 1, wherein R represents phenyl. 5. A styryl-like compound according to claim 1, wherein R represents methyl and n is a value of 2. 6. A styryl-like compound according to claim 1, wherein R represents phenyl and n is a value of 2. 7. A styryl-like compound according to claim 1, wherein R 3 is hydrogen, Y is O, Z is an alkylene radical of 2 to 4 carbon atoms, with or without alkyl substituents, necessary for forming a ring structure together with ##STR## and A is aromatic aldehyde. 8. A styryl-like compound according to claim 7, wherein Z is --CH 2 --CH 2 --. 9. A styryl-like compound according to claim 8, wherein A is an aromatic aldehyde selected from the group consisting of p-anisaldehyde, p-dimethylamino-cinnamaldehyde, p-dimethylamino-benzaldehyde, p-acetylamino-benzaldehyde, p-anisbenzaldehyde, p-tolylaldehyde, p-bromo-benzaldehyde, p-chloro-benzaldehyde, p-di-n-butylamino-benzaldehyde, 3,4-dimethoxy-benzaldehyde.
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