http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-843518-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_043c6a4e90e797f67a0e5cb252d30c56 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C203-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C203-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-04 |
| filingDate | 1938-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1939-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1939-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-843518-A |
| titleOfInvention | Process for the preparation of nitrite esters of non-phenolic organic compounds |
| abstract | 509,204. Polynitrites. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Sept. 7, 1938, No. 26193. Convention date, Sept. 17, 1937. [Class 2 (iii)] Monophenolic polynitrites are made by treating polyhydroxy compounds with nitrous acid in an aqueous medium, the products being removed from the medium as soon as they are formed. The solubility of the product may be diminished by adding a salt, or, if a higher nitrited product is desired, acetic acid may be added to increase the solubility of less nitrited esters. The nitrous acid may be made in the medium by adding an alkali or calcium nitrite and a mineral acid or acetic acid or nitrous anhydride may be introduced. Suitable polyhydroxy compounds are glycerol, alpha-, #- and dimethyl glycerols, pentaerythritol, methyl tricarbinol methane, erythritol and its monoacetate, monoethyl ether and monochlorhydrin, and hexyl erythritol, from all of which polynitrites containing a free hydroxy group may' be prepared ; and ethylene, propylene, trimethylene, isobutylene, #-butylene, alpha- and #- methyl trimethylene, diethylene and #-methylene trimethylene glycols, glycerol monoethyl ether and monoacetate, and erythritol dichlorhydrin; polyhydroxy compounds containing carboxyl groups are also suitable, such as monomethyl tartrate, dimethyl racemic acid and dihydroxy maleic acid.- Substances such as sucrose which contain many hydroxy groups are not suitable, but sucrose containing a hydrophobic group such as an alkyl group is suitable. An example describes the production of ethylene glycol dinitrite. |
| priorityDate | 1937-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.