http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-946108-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_592ecc4fd30a3ecbc69f338002ba18b4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-073 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-072 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F24-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F26-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D215-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-0904 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-08726 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G9-087 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F24-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F26-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G5-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G9-09 |
| filingDate | 1960-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-946108-A |
| titleOfInvention | Improvements in or relating to photographic reproduction |
| abstract | 2-Vinyl-4:5-diaryl-oxazoles are made by reacting acrylonitrile with benzoin or the appropriately-substituted benzoin, i.e. 4-dimethylamino, 4-diethylamino, 4-dimethylamino-41-chloro, and 4-dialkylamino-2-chloro where alkyl is methyl, ethyl, propyl and butyl. 2-Vinyl-quinoline and 3-vinyl-dibenzofuran are made by dehydration of the corresponding carbinols. 2-(a -hydroxyethyl)-9-methyl-carbazole and 3-(a -hydroxyethyl)-dibenzofuran are obtained by reducing the corresponding acetyl compounds with Raney nickel. 3-(a -hydroxyethyl)-9-ethyl-carbazole is prepared by reducing the 3-acetyl compound with sodium borohydride or treating the 3-aldehyde with methyl magnesium iodide. 3-Acetyl-9-ethyl-carbazole is obtained by N-ethylation with diethyl sulphate. 9-Isopropyl-carbazole - 3 - aldehyde and 9 -(p-methoxyphenyl)-carbazole-3-aldehyde are made by introduction of the aldehyde group with N-methyl-formanilide. 9-Isopropyl-carbazole is prepared from potassium carbazole and isopropyl bromide. 9-(p-methoxyphenyl)-carbazole is obtained from carbazole and p-bromoanisole. Specifications 856,770 and 944,107 are referred to.ALSO:Polymers of vinyl-substituted heterocyclic compounds are made by polymerizing the monomers by normal methods with a peroxide or azo catalyst or by boron-fluoride complexes or by simultaneously dehydrating and polymerising the monomers containing a carbinol group; the latter can be prepared in situ by a Grignard reaction from the corresponding aldehydes. Examples are given of the production of polymers of 2-vinyl-quinoline, 2-vinyl-furan, 2-vinyl-benzofuran, 3-vinyl-binenzofuran, 2-vinyl-N-methyl- and -N-ethyl-carbazole, 3-vinyl-N-methyl, -N-isopropyl- and -N-(p-methoxyphenyl)-carbazole and 2-vinyl-4:5-diaryl-oxazoles where the 4- substituent is phenyl, p-dimethylaminophenyl, p-diethylaminophenyl, p-dipropylaminophenyl and p-dibutylaminophenyl and the 5-substituent is phenyl, o-chlorophenyl and p-chlorophenyl. In general the heterocyclic nuclei may be substituted by alkyl, alkoxy, hydroxy, acyloxy, amino or dialkylamino groups. Copolymers can be made of the above or with another monomer such as styrene, methylstyrene or acenaphthylene. Photoconductive compositions of the above polymers may also contain dyestuffs (a number mentioned), pigments (ZnO, TiO2), electron-accepting substances as activators and other resins, e.g. ketone resins or chlorinated polyvinylchloride. Suitable activators are compounds having strongly polarizing groups such as cyano, nitro, halogen, keto, quinone, ester, acid or anhydride. Specified solvents for the polymers are chloroform, glycol monomethyl ether, butanone, benzene and toluene. The use of poly-N-vinyl-carbazole and poly-N-acrylyl or poly-N-alkylacrylyl compounds is disclaimed, see Specifications 856,770 and 946,107 respectively, but a copolymer of N-vinyl-carbazole and 2-vinyl-4-(p-dimethylaminophenyl)-5-(o-chlorophenyl)-oxazole is mentioned. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2342350-A |
| priorityDate | 1959-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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