http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113912647-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a88495d5691a77a80831b6fddf3a05bb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-650952 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6509 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-42 |
| filingDate | 2021-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd05f20a1bf94b6a64d3492182538b87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd5af2e1fd5a4e578ac67b2368fb0afc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_585cc051e637f637e598a3418a28712e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b24bb8c5fe8796d83989da5813ba29f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26cb026eabdff8486ca654e15653670e |
| publicationDate | 2022-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113912647-A |
| titleOfInvention | Synthesis method of novel flame retardant DPPMP |
| abstract | The invention discloses a synthetic method of a novel flame retardant DPPMP, which relates to the technical field of new materials and comprises the following steps: a. placing phosphorus oxychloride in a reactor, adding a Lewis acid catalyst, adding phenol, stirring, heating to 80-120 ℃, and continuously reacting for 2-3 hours to obtain a methylphenoxy phosphoryl chloride intermediate; b. separating out phosphorus oxychloride, and distilling out methylphenoxy phosphoryl chloride; c. preparing piperazine, adding an acid-binding agent and a solvent, adding the methylphenoxy phosphoryl chloride obtained in the step b into the piperazine, controlling the adding temperature to be 0-20 ℃, stirring, keeping the temperature at 40-70 ℃ for 2-3h after the reagent is added, reacting to obtain 4- [ methyl (phenoxy) phosphoryl ] piperazine-1-yl phenyl methyl phosphonate, and preparing the flame retardant DPPMP by using methyl phosphorus oxychloride as a raw material, wherein the yield can be kept above 18% and is as high as 60%, and the purity can be as high as 99%. |
| priorityDate | 2021-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.