| abstract |
PROCESS FOR MANUFACTURING L-PHENYLALANINE BY HYDROGENATION OF ACETAMIDOCINNAMIC ACID IN THE PRESENCE OF A COMPLEX OF A METAL M FROM GROUP VIII OF THE PERIODIC CLASSIFICATION THEN HYDROLYSIS OF THE PRODUCT RESULTING FROM THE HYDROGENATION REACTION. THE HYDROGENATION REACTION IS CARRIED OUT IN THE PRESENCE OF A SOLVENT, UNDER PRESSURE GREATER OR EQUAL TO ATMOSPHERIC PRESSURE, AT A TEMPERATURE OF - 50C TO 10C, FOR A DURATION LESS THAN OR EQUAL TO 300 MINUTES, THE MOL RATIO IN WHICH: - W IS A DIHYDROCARBYLPHOSPHINOXY RADICAL OF FORMULA W OP (R) IN WHICH R IS A HYDROCARBON RADICAL CHOSEN FROM ALKYL, ARYL AND CYCLOALKYL RADICALS, -R IS CHOSEN FROM HYDROGEN ATOM, HYDROCARBON, AND RADICARBON NECESSARILY DIFFERENT FROM ONE ANOTHER, ARE CHOSEN FROM HYDROGEN ATOM AND HYDROCARBON RADICALS POSSIBLY CARRYING AT LEAST ONE FUNCTION CHOSEN FROM ALCOHOL, THIOL, THIOETHER, AMINE, IMINE, ACID, ESTER ETHER, ET-R AND R ARE CHOSEN AMONG THE HYDROGEN ATOM AND THE POSSIBLE FUNCTIONALIZED HYDROCARBON RADICALS. APPLICATION FOR OBTAINING L-PHENYLALANINE IN CHEMICALLY AND OPTICALLY PURE FORM. |