http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-790203-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_571b8abacacea64d3f7089d0983b8b3b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| filingDate | 1955-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58a6f52b878e86abb2c858cf156b243f |
| publicationDate | 1958-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-790203-A |
| titleOfInvention | Improvements in and relating to naphthalene derivatives and the manufacture thereof |
| abstract | The invention comprises naphthalene derivatives of the general formula: <FORM:0790203/IV (b)/1> in which X and Y each represent the grouping -CH2,NR5,CH2,O-, R5 being a straight or branched chain alkyl group having from one to eight carbon atoms or a cycloalkyl group having from five to seven carbon atoms in the ring; together with a process for their preparation by reacting the appropriate naphthalene 1,5-, 1,6- or 2,6-diol with formaldehyde and an amine RNH2, preferably in a solvent, e.g. methanol. In examples: (1) naphthalene-1,6-dol is added to cyclohexylamine and formalin in methanol at -5 DEG C. and the mixture left overnight, when 2,9 - dicyclohexyl - 1,2,3,4,7,8,9,10-octahydro - 2,9 - diaza - 4,7 - dioxachrysene separates and is recrystallized from ethanol or dioxan; similarly using the appropriate amine are obtained 2,9-diethyl-, di-n-propyl-, di-n-butyl-, di-n-octyl-, di-cyclopentyl-, and dicycloheptyl - 1,2,3,4,7,8,9,10 - octahydro - 2,9-diaza - 4,7 - dioxachrysene; (2) as in (1), using naphthalene-1,5-diol and the appropriate amine are obtained 2,8-dicyclohexyl-, and di-n-propyl - 1,2,3,4,7,8,9,10 - octahydro - 2,8 - diaza-4,10-dioxachrysene; (3) cyclohexylamine in methanol is treated with formalin and naphthalene-2,6-diol in methanol, the mixture refluxed and poured into water when 3,9-dicyclohexyl-1,2,3,4,7,8,9,10 - octahydro - 3,9 - diaza - 1,7-dioxachrysene crystallizes; similarly are obtained 3,9-dimethyl-, diethyl, di-n-propyl, diisopropyl, di - n - butyl and di - n - pentyl-1,2,3,4,7,8,9,10 - octahydro - 3,9 - diaza - 1,7-dioxachrysene. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4835177-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4923852-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4925831-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4894392-A |
| priorityDate | 1955-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.