Universal Oil Products Company

Allen K Sparks

Paul H Reichenbacher

Theresa M Forsythe

Ted Symon

Coumarin compounds may be produced by the conversion of o-hydroxycinnamates or o-hydroxycinnamic acids in the presence of catalysts comprising compounds containing metals of Group VIII of the Periodic Table.

Preparation of coumarins

Metal-containing catalyst compounds which are soluble in reaction mediums are maintained in the desired soluble form during an alternate oxidation and reduction process by utilizing an inert solid material in the reaction mixture.

Chemical condensation improvement

In a process for producing alkylaromatics by halogenating a paraffin and reacting the halogenated paraffin with an aromatic hydrocarbon, the rate of halogenation is improved by treating the n-paraffin to selectively remove oxygen-containing hydrocarbonaceous compounds from the n-paraffin with a sorbent selective for such oxygen-containing compounds, and subsequently halogenating the treated n-parffin. The improvement is particularly useful in producing alkylaromatic hydrocarbons from monocyclic aromatic compounds and n-paraffins.

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Des Plaines, IL, United States of America

Allen K Sparks