| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1d7a0c49e4b9499de007d9dc1d6728bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e20e8de9c345e968d20c5c8cb96eea7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_37f4922dfb7777b019e504b885211b8e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2261-3242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2261-11 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G61-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D413-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D413-04 |
| filingDate |
2020-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_413a9aa3b6231fc19d94551de0f0277f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4816c146f68d9c965490d82efc951066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37935cc22fd6192ad2c7535ac899560f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e6974ded0092d6dbd3a6b4330b50b69 |
| publicationDate |
2021-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3770152-A1 |
| titleOfInvention |
Method for manufacturing chromenes by gold-based catalysis intended for the preparation of heat-setting resins |
| abstract |
The present invention relates to a process for the manufacture of chromenes intended for the preparation of thermosetting resins comprising the step of converting an aromatic propargyl ether of general formula (I) into a chromene by homogeneous catalysis with gold (I) with the (acetonitrile) [(2-biphenyl) di-tert-butylphosphine] or (I) hexafluoroantimonate catalyst in an organic solvent under an inert or non-inert atmosphere. It further relates to a process for preparing a thermoset resin material comprising the following successive steps: -a) implementation of the method according to the invention; -b) polymerization of the reaction product obtained in step a) so as to obtain the thermoset resin material; -c) recovery of the thermoset resin material obtained in step b). |
| priorityDate |
2019-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |