| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-135 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C325-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C337-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 |
| filingDate |
1976-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df0e61458ea3755d12ea28fa8b0e25bf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_054f5e3068802b673ec8559095a3aca5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1d655fe5bdce99fa02a8de1c9eef969 |
| publicationDate |
1979-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4132736-A |
| titleOfInvention |
Preparation of 4-alkylthiosemicarbazides |
| abstract |
4-Alkylthiosemicarbazides of the formula n n Alkyl--NH--CS--NH--NH.sub.2 n n are produced by heating at about 40 to 90° C the novel hydrazinium salts of N-alkyldithiocarbamic acids of the formula n n Alkyl--NH--CS--S.sup.- + NH.sub.3 --NH.sub.2 n n in a solvent while removing by-product H 2 S as by use of vacuum or passage of an inert gas through the reaction mixture, advantageously in the presence of a catalytic amount of sulfur to speed up the reaction. Hydrazine hydrate may also be present. The hydrazinium salt starting material can be prepared by reacting the corresponding alkylamine, ammonia, carbon disulfide and hydrazine, and the reaction solution directly employed in the heating step of the present invention without isolation of the intermediate. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4172092-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105884668-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4853483-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4237066-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4294985-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4173581-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004266807-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0308225-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0308225-A2 |
| priorityDate |
1975-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |