PREPARATION OF VINYL KETONES FROM ACETONE AND PARAFORMALDEHYDE (II)

Unsaturated ketones are produced from ketones and paraformaldehyde under mild reaction conditions utilizing a catalyst comprising a halogen acid salt of a secondary amine and a nonsoluble solid oxide of an element selected from Groups IB, IIIA, IVA, IVB, VA, VB, VIB and VIII of the periodic table. T...

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Hauptverfasser:	PUGACH, JOSEPH, SALEK, JEFFREY S
Format:	Patent
Sprache:	eng ; fre
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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Beschreibung
Zusammenfassung:	Unsaturated ketones are produced from ketones and paraformaldehyde under mild reaction conditions utilizing a catalyst comprising a halogen acid salt of a secondary amine and a nonsoluble solid oxide of an element selected from Groups IB, IIIA, IVA, IVB, VA, VB, VIB and VIII of the periodic table. Temperatures of 120-150 and pressure of 700-1200 kpa are preferred; by-products may include di-unsaturated ketones such as divinyl ketone, Unsaturated ketones such as methyl vinyl ketone are useful in imparting ultraviolet sensitivity to plastics which enhances degradability.