http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-247453-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b9fbc5cbaf78971ef95e3f42dfee4bd |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-58 |
| filingDate | 1986-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d24fbc516c6d52acd3ac5cede4cb4db |
| publicationDate | 1987-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-247453-A1 |
| titleOfInvention | METHOD FOR PRODUCING N-DIALKYLIMMONIUM SALMS OF 2-FORMYLMETHYLENE-2H-1-BENZOPYRANE |
| abstract | The aim of the invention is to produce these hitherto unknown compounds in a simple manner in high purity and yield. The object of the invention to provide a simple, side reactions largely exclusive manufacturing process on the basis of easily accessible, non-schaedigender starting materials is solved by 1- (2-acetylvinyl) -phenols- (2) of the type I with formamides of the type in a single process stage II and acid chlorides or with formamide chlorides of the type III to the NN dialkylimmonium salts of 2-formylmethylene (2H) -1-benzopyrans the type IV are reacted. The compounds according to the invention can be used as reactive intermediates for the production of dyes which absorb in the long-wavelength range of the visible spectrum and are therefore technically versatile. |
| priorityDate | 1986-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.