http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108892605-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-455 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-64 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-64 |
| filingDate | 2018-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108892605-B |
| titleOfInvention | Preparation process of photoinitiator 1173 |
| abstract | The invention discloses a preparation process of a photoinitiator 1173 (2-hydroxy-2-methyl-1-phenyl-1-acetone), which comprises the following steps: a high-temperature ketone making section: liquefying and mixing benzoic acid and isobutyric acid to prepare a reaction mixed solution, preheating the reaction mixed solution, contacting the reaction mixed solution with a metal salt catalyst, dehydrating at a high temperature (300-; a one-pot alkali chloride hydrolysis section: and (2) carrying out one-pot chlorination and alkaline hydrolysis on the isobutyrophenone by using carbon tetrachloride and sodium hydroxide as reagents and tetrabutylammonium bromide as a phase transfer catalyst to obtain the 2-hydroxy-2-methyl-1-phenyl-1-acetone. The preparation process has high selectivity, and is safe and environment-friendly. |
| priorityDate | 2018-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.