http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1247062-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C233-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-00 |
| filingDate | 1969-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1247062-A |
| titleOfInvention | Production of n,n-dimethylacylamides |
| abstract | 1,247,062. N-Dimethylacylamides. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 Feb., 1969 [7 Feb., 1968], No. 6412/69. Heading C2C. N,N-Dimethylacylamides containing C 2-4 acyl radicals are obtained by reacting an excess of dimethylamine and a C 2-4 aliphatio carboxylic acid at elevated temperature in a continuous manner on a column with distillation of the amide formed, wherein the amine and the acid in a molar ratio 1-1:1 to 5:1 are introduced at 80-220‹ C. and pressure of 0À1-2 atmospheres in the absence of a catalyst into a mixture of N,N-dimethylacylamide and its carboxylic acid, the acid content of the mixture corresponding at least to the amount of acid present in the azeotropic mixture of the N,N-dimethylacylamide and its carboxylic acid. The ratio of amine to acid is preferably 1À5:1 to 2:1, the temperature 160-210‹ C. and atmospheric pressure is advantageously employed. A column having 25-80 theoretical trays is preferred and the amide preferably withdrawn at a point 17-34 theoretical trays above the point at which the acid is fed in. In the example acetic acid is reacted with dimethylamine in a molar ratio of 1:1À7 at 201‹ C. under atmospheric pressure. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113856607-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112574052-A |
| priorityDate | 1968-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.