http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3658876-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d202e9e866984fe229f6facc38f1d740 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-54 |
| filingDate | 1969-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6154a2c4e90b8a3705355fa443f87717 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_730d09dba74c7135893a08a4f8b3b3a7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c033041fbdd635d86e3ab9ecc426e76b |
| publicationDate | 1972-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3658876-A |
| titleOfInvention | Process of preparing l-alpha-acetamino-alpha-vanillylpropionitrile |
| abstract | THE PROCESS OF FORMING L-A-ACETAMINO-A-VANILLY-PROPIONITRILE FROM DL-A-AMINO-A-VANILLYLPROPIONITRILE WHICH COMPRISES: (A) FORMING AND ISOLATING L-A-AMINO-A-VANILLYLPROPIONITRILE-D-10-CAMPHORSULFONATE CONTAMINATED WITH A SMALL AMOUNT OF THE CORRESPONDING DD-SALT BY AGITATING A SOLUTION OF DL-A-AMINO-A-VANILLYLPROPIONITRILE WITH D10-CAMPHORSULFONIC ACID AND SEPARATING SAID OPTICALLY IMPURE MORE SOLUBLE LD-SALT BY AGITATING THE RESULTING DL, D-SALT MIXTURE IN 10 TO 40 PARTS, BY VOLUME, OF DIOXANE CONTAINING 0 TO 10% WATER, BY VOLUME, PER PART BY WEIGHT OF SAID DL, 1-DALT MIXTURE AND SEPARTING THE LESS SOLUBLE DD-SALT; AND (B) CONVERTING SAID IMPURE LD-SALT TO PURE L-LOWER ALKANOYLAMINO VANILLYPROPIONITRILE BY HEATING SAID IMPURE SALT IN A REACTION MIXTURE COMPRISING A LOWER ALKANOYL ANHYDRIDE AND PYRIDINE TO FORM THE CORRESPONDING O,N-DIACYL COMPOUND FOLLOWED BY BASIVFICATION OF A SOLUTION OF SAID O, N-DIACYL COMPOUND WITH ONE EQUIVALENT OF BASE SELECTED FROM ALKALI METAL HYDROXIDE, ALKALI METAL BICARBONATE AND AMMONIA IN A HYDROXYLATED SOLVENT SELECTED FROM WATER, LOWER ALKANOLS AND LOWER GLYCOLS TO FORM SAID LOWER ALKANOYLAMINONITRILE CONTAMINATED WITH SOME D-ENANTOMORPH AND RECRYSTALLIZING SAID IMPURE NITRILE FROM AN INERT SOLVENT. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3895052-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4183865-A |
| priorityDate | 1969-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.