| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38e7fa5523ab3475bf4e537045e4789f |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-12 |
| filingDate |
1994-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc74aa2ea700214753ada2edf67f7338
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7f29916d640edcea67ed06bfcd57dc8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb2148f8d07a9f1f29485960114935d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78830975e2a20eae5b98b6bafe6d091f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e669a385bd65b415c88d224d5474bb09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3dd2fc03259f44a0ee62a8366b3894fa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8591f5a2d1d341154a63a85ef4ebd998 |
| publicationDate |
1996-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-94034129-A |
| titleOfInvention |
Process for preparing 4,5,4',5'-tetrahydro-2,2'-(1,4- phenylene) bisoxazoline |
| abstract |
The invention relates to organic synthesis and can be used to obtain a stabilizer of polymeric materials. The goal is to increase the yield of the target product and increase the efficiency of the process. Terephthalic acid bis-N- (2-hydroxyethyl) -amide is reacted with thionyl chloride or phosphorus oxychloride in dimethylformamide medium at 35 - 45 ° С, after which the reaction mixture cooled to room temperature is poured into water and the resulting intermediate product is treated with alkali metal hydroxide in the presence of isopropyl alcohol at the boiling point of the reaction mixture. |
| priorityDate |
1994-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |