http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-299643-A5
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9350b6eab2d5371e6eb7bf7916def8ee |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D265-30 |
| filingDate | 1990-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a0f2bb08162a8ffb1c1ec9c62234a31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0cd1869dc507cbcb273a6835fa8d3154 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_544528747ca8e41df3cbf636c558c3b4 |
| publicationDate | 1992-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-299643-A5 |
| titleOfInvention | PROCESS FOR THE PREPARATION OF NEW N-CARBOXYMETHYL-N-ALKYL-2.6-MORPHOLINI BEQUINES |
| abstract | The invention relates to a process for the preparation of novel * It is characterized in that one prepares carboxymethyl betaines gemaesz the formula by reacting * and / or * with Halogenessigsaeureester in alcoholic solution under reflux, using the reaction conditions below, the reaction controls so that z quaternized as the 2,6-position isomers predominantly reclaims the reaction-inert 2,5-position isomers from the reaction mixture, as reaction conditions: solvent: alcohol from C1 to C4, type of alkylating agent: BrCH2COOCH2CH3 or ClCH2COOCH2CH3 (or JCH2COOCH2CH3 in the exclusive use of * molar ratio (amine : Alkylating agent): 1: 1.1 to * Reaction time: 5-10 h, and converting the resulting quaternary ammonium salts to corresponding betaines by alkaline saponification at 15-65 ° C. in a strongly alkaline medium The advantage of the solution according to the invention lies in the reindars The use of positional isomers and the consequent possibility of exploiting their specific properties, ie when using * N-alkyl-dimethylmorpholines, gives selective carboxymethylation of the 2,6-isomer compounds and extractive recovery of unreacted 2,5-isomer compounds. Formula {procedures; manufacture; * Carboxymethyl betaines; * Haloacetic acid ester; Ammonium salts; saponification; Betaine; positional} |
| priorityDate | 1990-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.