http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S54112873-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47f5b48ea632d303b95ef7d183a4ab0c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-74 |
| filingDate | 1978-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_947bb8cd537e5cc0f311126f53c9bdc9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99809e1f0f13eccb2e8aa37afc369eca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d05ad901a7f13dcc3e3a4d3f00d03aef |
| publicationDate | 1979-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S54112873-A |
| titleOfInvention | Preparation of 2,2,6,6-tetramethyl-4-oxopiperidine |
| abstract | PURPOSE: To prepare the title compound useful as a photo-stabilizer of a polymer, an intermediate of medicines, etc., in high purity and yield, without using complicated steps, by reacting acetone and an acidic condensate of acetone with acetonine in the presence of a specific catalyst. n CONSTITUTION: The objective title compound is prepared by reacting acetone and/ or an acidic condensate of acetone (pref. diacetonealcohol) with 2,2,4,4,6-pentamethyl-2,3,4,5-tetrahydropirimidine acetonine in the presence of a catalyst comprising hydrogen halide salt of hydrazine or hydrazine derivative of formula (R 1-4 are alkyl, cycloalkyl, etc.; X is Br, Cl, etc.; n is 1,2), e.g. hydrazine, N-methylhydrazine, etc. The amount of the catalyst is ≥0.01wt.%, pref. 0.05W10.0 wt.% of the acetone and acidic condensate of acetone. n COPYRIGHT: (C)1979,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3750876-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3907217-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10807954-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3663284-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11731940-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102012215903-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2706045-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102012215900-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2706056-A1 |
| priorityDate | 1978-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.