Givaudan Corporation

General Electric Company

Givaudan-roure Corporation

Alan J. Chalk

Alan J Chalk

Steven A Magennis

Richard E Naipawer

Joseph A Virgilio

Kenneth Leo Purzycki

Vasile S Wertheimer

Laszlo Wertheimer

Theresa B Wertheimer

Laszlo V Wertheimer

Alfred R Gilbert

A 'one-pot' process for the palladium catalyzed coupling of a diazonium salt with an olefinic bond, in the aqueous medium in which the diazonium salt is made, by employing a carboxylic acid as a solvent. Arylacrylic acids and their esters, e.g. the cinnamates, can be produced at low catalyst concentration without first isolating the diazonium salt. The process is applied to the synthesis of 2-ethylhexyl p-methoxycinnamate.

Process for the palladium catalyzed coupling of a diazonium salt with an

A modified ruthenium catalyst can be used to selectively hydrogenate an olefinic double bond in the presence of another olefinic double bond in the same or in a different molecule. Modifiers are selected from compounds containing trivalent nitrogen, trivalent phosphorus and divalent sulfur.

Selective hydrogenation of olefins

The novel odorants, 3-(3-propan-2-ylphenyl)butanal and 3-(3-propen-2-ylphenyl)butanal, are disclosed.

3-(3-propan-2-ylphenyl)butanal and 3-(3-propen-2-ylphenyl)butanal

Terminal epoxides, also known as alpha-epoxides or 1,2-epoxides, are rearranged predominantly to the corresponding aldehydes using a catalyst system consisting of lithium tetrafluoroborate in a polyether solvent.

Process for the rearrangement of epoxides

Alkenoxy octadienes and alkoxy octadienes and octanes are valuable fragrance materials.

Alkenoxy octadienes as odorants

There is disclosed a novel process for converting allylic amines, having a hydrogen bonded to a carbon .delta. to the amino group, to a diene in the presence of a zero valent palladium phosphine complex and a weak acid. The process has been used to make novel compositions containing 7-methoxy-3,7-dimethyloctadienes which are useful as odorants and flavorants.

Process for the catalytic synthesis of conjugated dienes from

The instant invention provides a new and improved method of preparing the Diels Alder mixture of 3 and 4-(4-methyl-4-hydroxyamyl).DELTA..sup.3 -cyclohexenecarboxaldehyde from the readily available myrcene. The novel sequence includes a synthesis of a novel myrcenol, ocimenol intermediate which is substantially free of trans-ocimenol.

Process for preparing a myrcenol, cis-ocimenol mixture substantially

Catalytic aromatic carbonate process which comprises contacting a phenol, carbon monoxide, an oxidant, a base, and a Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum. The resulting aromatic mono- and polycarbonates are useful in the preparation of polycarbonates or as polycarbonates, per se, respectfully, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.

Catalytic aromatic carbonate process

High temperature polymers are prepared by effecting reaction in the presence of an alkyl aluminum halide-titanium halide catalyst between a difunctional acetylene compound and a monofunctional acetylene compound. These polymers can be used for making composites with heat-resistant fibers, such as graphite fibers, glass fibers, etc., useful in airplane construction and in turbines.

Polyphenylene polymers and methods for making the same

An aromatic carbonate process comprising contacting a phenol, carbon monoxide in the presence of a base, Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum having an oxidation state greater than zero. The resulting aromatic mono- and polycarbonates are useful in the preparation of polycarbonates or as polycarbonates, per se, respectively, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.

Aromatic carbonates

Upon reacting an alcohol having an olefinic double bond with an aryl bromide or iodide in the presence of a Paladium catalyst, there is provided either an aryl substituted aldehyde, ketone or olefinic alcohol.

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Kinnelon, NJ, United States of America

Alan J Chalk