http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-375627-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6108c9a7f7a472c2db8923daca0ec8d6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C233-01 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-01 |
| filingDate | 1931-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1932-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-375627-A |
| titleOfInvention | Improvements in or relating to the production of organic acid amides |
| abstract | Amides of lower aliphatic acids which form simple anhydrides are made by reacting the acid anhydride with not substantially more than one equivalent of ammonia or of a primary or secondary lower aliphatic mono amine. The reaction is preferably effected below 90 DEG C., particularly below 40 DEG C. The aliphatic acid produced is separated from the amide by distillation, preferably under reduced pressure. Acetamide produced in this manner is suitable for the production of methylamine by the process of Specification 169,536, [Class 2 (iii), Dyes &c.]. Propionamide and butyramide may be made in the same manner and mono- and dialkylamines such as methylamine may be used instead of ammonia. In an example anhydrous ammonia is bubbled into acetic anhydride at 40 DEG C., and the acetic acid is distilled off at reduced pressure. The Specification as open to inspection under Sect. 91 (3) (a) includes the use of other acid anhydrides and other substituted ammonias such as aniline. This subject-matter does not appear in the Specification as accepted. |
| priorityDate | 1930-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.