| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb4fbf8a1554775e07529b963516e580 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-567 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-573
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-128
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-06 |
| filingDate |
1992-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_117172eb670f34bd1640db6c25dc41f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_feacad6036fd39c05880f5fe9429a6a5 |
| publicationDate |
1993-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0549531-A1 |
| titleOfInvention |
Process for preparing acid anhydrides |
| abstract |
The invention relates to a novel process for the preparation of symmetrical acid anhydrides of the formula characterized in that a compound of the formula with an acid anhydride of the formula with removal of the resulting compounds of the formula by distillation implements. The radicals R₁ and R₂ have the meanings given in the description, X represents chlorine or bromine. |
| priorityDate |
1991-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |