Uop Lcc

Yeda Research and Develpment & Co. Ltd

Michael Martan

David Vofsi

Paul H Reichenbacher

Jonathan Freddy Cohen

Acrylamide may be prepared by the hydrolysis of acrylonitrile by treating the acrylonitrile with water in the presence of a copper catalyst which has been prepared by volatilizing copper metal at a temperature in the range of from about 1000.degree. to about 1500.degree. C. in vacuo and condensing the vapors in the presence of an organic solvent.

Preparation of acrylamide

Mixtures of isomeric ortho and para alkylated phenols or phenolic ethers may be separated without extensive distillation by treating a mixture of the isomers with a polyalkylene polyamine such as hexamethylenetetramine in the presence of a protonic solvent at sub-ambient temperatures.

Separation of isomers of phenols and phenolic ethers

Diphenylmethane may be synthesized in relatively higher yields than has hereinbefore been obtained by reacting dibenzyl ether with benzene in the presence of protonic acid catalysts which contain a phosphoric acid.

Synthesis of diphenylmethane using phosphoric-sulfuric acid catalyst

Polymerizable monomers are photopolymerized by subjecting the monomer to the emission from an ultra-violet light source in the presence of a photosensitizing compound and an activating compound .It has now been discovered that certain types of substituted acetophenones will act as both a sensitizer and an activator thus eliminating the presence of more than one compound in the monomer.

Photopolymerization using an alpha-aminoacetophenone

Cis-anethole is isomerized to the trans-anethole form thereof by treatment with a rhodium-containing compound such as rhodium chloride in an alcoholic medium at the reflux temperature of said medium to form the desired trans isomer.

Isomerization of cis-anethole to trans-anethole

A process for producing halosubstituted derivatives of acetophenone from the respective halocumenes, the term 'halo' as used herein, signifying chlorine or bromine, the molecule containing 1 to 3 nuclear halo substituents in the meta- and/or paraposition relative to the isopropyl group. The process comprises oxidizing the halocumene by means of air or oxygen. The oxidation is effected in the presence of a metal phthalocyanine complex as catalyst, and in a most preferred embodiment, in the co-presence of a dichlorobenzene solvent. The preferred halocumenes are p-chlorocumene and p-bromocumene.

Growing community of inventors

Skokie, IL, United States of America

Michael Martan