| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2624d90b90c8e7641aae7e58baef407
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7ef4b2579c7f141b15f860729bdbad8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C271-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D265-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C269-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C271-28 |
| filingDate |
2019-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27daf6a0bc953a22a86cffa685b7517b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01175c5c0a180d0ec0e3a0fec1356399
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba49aec488a6c5e068a50abcc7f5cb70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98e77c6073eda9e360fb9e165944fcce |
| publicationDate |
2021-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-112898221-A |
| titleOfInvention |
The preparation method of benzoxazine dione compound C and its intermediate |
| abstract |
The invention discloses a preparation method of benzoxazine dione compound C and its intermediate. Including method 1: (1) compound SM01 is reacted with N,N'-disuccinimidyl carbonate to obtain intermediate B1; (2) intermediate B1 is heated to 65°C-95°C for ring closure reaction to obtain compound C . Or method 2: (1) compound SM01 is reacted with Boc acid anhydride to obtain intermediate B2; (2) intermediate B2 is heated to 65°C-95°C for ring closure reaction to obtain compound C. The synthetic route involved in the invention has simple preparation method, mild reaction conditions, avoids the use of toxic or corrosive reagents, high product purity and yield, and is suitable for industrial production. |
| priorityDate |
2019-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |