Hydrogenation of cinnamic aldehydes and derivatives thereof

Claim 1

THE METHOD OF HYDROGENATING AN UNSATURATED ALDEHYDE TO EFFECT PREFERENTIAL HYDROGENATION OF THE OLEFINIC DOUBLE BOND THEREOF, SAID ALDEHYDE BEING SELECTED FROM THE GROUP CONSISTING OF CINNAMIC ALDEHYDE, CINNAMIC ALDEHYES SUBSTITUTED IN THE SIDE CHAIN WITH A LOWER ALKYL GROUP, CINNAMIC ALDEHYDES SUBSTITUTED IN THE RING WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, ALKOXY, AND ALKYLENEDIOXY, AND CINNAMIC ALDEHYDES SUBSTITUTED IN THE SIDE CHAIN WITH A LOWER ALKYL GROUP AND IN THE RING WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, ALKOXY AND ALKYLENEDIOXY WHICH COMPRISING HYDROGENATING UNDER A PRESSURE OF FROM ABOUT 10 TO 150 POUNDS PER SQUARE INCH AND AT A TEMPERATURE OF ABOUT 25*C. TO 110*C. IN THE PRESENCE OF PALLADIUM CATALYST AND IN A TWO-PHASE LIQUID SYSTEM COMPRISING THE UNSATURATED ALDEHYDE AND AN AQUEOUS ALKALINE SOLUTION OF AN ALKALINE AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM AND LITHIUM HYDROXIDES AND THE ALKALINE REACTING SALTS THEREOF AND CONTINUING THE HYDROGENATION UNITL THE ABSORPTION OF HYDROGEN CEASES.

Claim 2

THE METHOD OF HYDROGENATING AN UNSATURATED ALDEHYDE TO EFFECT PREFERENTIAL HYDROGENATION OF THE OLEFINIC DOUBLE BOND THEREOF, SAID ALDEHYDE BEING SELECTED FROM THE GROUP CONSISTING OF CINNAMIC ALDEHYDE, CINNAMIC ALDEHYES SUBSTITUTED IN THE SIDE CHAIN WITH A LOWER ALKYL GROUP, CINNAMIC ALDEHYDES SUBSTITUTED IN THE RING WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, ALKOXY, AND ALKYLENEDIOXY, AND CINNAMIC ALDEHYDES SUBSTITUTED IN THE SIDE CHAIN WITH A LOWER ALKYL GROUP AND IN THE RING WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, ALKOXY AND ALKYLENEDIOXY WHICH COMPRISING HYDROGENATING UNDER A PRESSURE OF FROM ABOUT 10 TO 150 POUNDS PER SQUARE INCH AND AT A TEMPERATURE OF ABOUT 25*C. TO 110*C. IN THE PRESENCE OF PALLADIUM CATALYST AND IN A TWO-PHASE LIQUID SYSTEM COMPRISING THE UNSATURATED ALDEHYDE AND AN AQUEOUS ALKALINE SOLUTION OF AN ALKALINE AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM AND LITHIUM HYDROXIDES AND THE ALKALINE REACTING SALTS THEREOF AND CONTINUING THE HYDROGENATION UNITL THE ABSORPTION OF HYDROGEN CEASES.