http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-344532-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-00 |
| filingDate | 1929-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1931-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-344532-A |
| titleOfInvention | Manufacture of organic arsenic and antimony compounds |
| abstract | Organo arsenic and antimony compounds are prepared by exchanging in known manner the hydroxyl group for X in compounds of the formula Y.Ar.NH.CO.(CH2)n.X, in which Y represents a residue containing arsenic or antimony in a tri- or penta-valent form, X signifies an amino group or a halogen atom, Ar stands for a substituted or unsubstituted aryl residue (but when X is halogen, Ar must not contain a hydroxyl group in orthoposition to the halogen-acylamino group), and n is an integer. According to the examples, (1) arsanilic acid is treated with chloracetyl chloride and then with caustic soda to give p-glycollylaminophenylarsinic acid; the same product is obtained by treating the chloracetylarsanilic acid with ammonia and decomposing the resulting glycylarsanilic acid with sodium nitrite in the presence of hydrochloric acid; (2) p-glycollylaminophenylarsenoxide is formed when p-aminophenylarsenoxide is acylated with chloracetyl chloride and the product heated with caustic soda; (3) 3-methyl-4-aminophenylarsinic acid is treated first with chloracetyl chloride and then with ammonia, and the 3-methyl-4-glycylaminophenylarsinic acid is then decomposed with nitrous acid to give 3-methyl-4-glycollylaminophenylarsinic acid; (4) p-glycollylaminophenylstibinic acid is produced when the product of interaction of p-aminophenylstibinic acid and chloracetyl chloride is boiled with caustic soda solution; (5) 2-methyl-4-aminophenylarsinic acid is treated with chloracetyl chloride or a -bromopropionyl bromide and the resulting compound decomposed with caustic soda; the product comprises 2-methyl-4-glycollylaminophenylarsinic acid and 2-methyl-4-lactylaminophenylarsinic acid respectively. The Specification as open to inspection under Sect. 91 (3) (a) also states that X may represent an acid residue, and contains Examples according to which 2-hydroxy-4-aminophenylarsinic acid, 4-methoxy-3-aminophenylarsinic acid and 2:5-dimethyl-4-aminophenylarsinic acid are treated with chloracetyl chloride and the products heated with caustic soda solution to give the corresponding glycollylamino compounds. This subject-matter does not appear in the Specification as accepted. |
| priorityDate | 1929-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.