MANUFACTURE OF BETA-DICARBONYL-, BETA-CYANCARBONYL- AND BETA-DICYAN COMPOUND SUBSTITUTED AT ALPHA POSITION

MANUFACTURE OF BETA-DICARBONYL-, BETA-CYANCARBONYL- AND BETA-DICYAN COMPOUND SUBSTITUTED AT ALPHA POSITION

beta -Dicarbonyl and beta -cyanocarbonyl compounds I where R1 is alkyl of 1-20 carbons, X is -COR2, Y is -COOR3, -COR3 or -CN, and R2 and R3 are each C1-C10-alkyl, are prepared from R1-CHO (II) and X-CH2-Y (III) by reaction in the presence of a condensation catalyst, hydrogen and a hydrogenation cat...

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Bibliographische Detailangaben
Hauptverfasser: GERUTO HAIREN, KURAUSU HARUBURITSUTAA, WARUTAA GURAMURITSUHI
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:beta -Dicarbonyl and beta -cyanocarbonyl compounds I where R1 is alkyl of 1-20 carbons, X is -COR2, Y is -COOR3, -COR3 or -CN, and R2 and R3 are each C1-C10-alkyl, are prepared from R1-CHO (II) and X-CH2-Y (III) by reaction in the presence of a condensation catalyst, hydrogen and a hydrogenation catalyst, using an oxide or phosphate of Mg, Al, Ti, Zn or a rare earth metal as the condensation catalyst.