Union Camp Corporation

Peter W Mitchell

Lois T McElligott

David E Sasser

Closely boiling diastereomeric isomer alcohols are separated by converting them to esters having disparate boiling points, separating the ester isomers by distillation and saponifying the separate ester isomers to obtain the individual alcohol isomers.

Process for the separation of isomers of diastereomeric alcohols

A process is provided for the preparation of pseudoionones by the condensation reaction of citral with a ketone in the presence of lithium hydroxide catalyst.

Preparation of pseudoionones

A method is provided for preparing cineole in an improved yield and with increased 1,4- isomer content, by reaction of terpin hydrate or terpineol with an acid, such as phosphoric acid, with distillation of the cineole from the reaction mixture as the cineole is formed.

Improved method for the preparation of 1,4-cineole

A method for the isomerization of linalyl halides is disclosed, improved by the presence of an organic quaternary salt. The improved method of the invention requires less energy for completion of the isomerization and shortens the isomerization times.

Isomerization of linalyl halides with quaternary salts

The disclosure is of an improved process for the hydrohalogenation of a conjugated diene in the presence of a catalyst, which comprises carrying out the hydrohalogenation in the presence of an organic quaternary salt.

Hydrohalogenation of myrcene

A method of preparing delta-terpineol by reacting 1,8-cineole with an alkali metal aryl compound resulting in an E2 elimination reaction of 1,8-cineole.

Preparation of delta-terpineol

A method of preparing terpinen-4-ols and intermediates thereof, by reacting 1,4-cineole with an alkali metal aryl compound, resulting in an E2 elimination reaction of 1,4-cineole.

Preparation of terpinen-4-ols and intermediates

A method of preparing 1-terpinen-4-ol and 1(7)-terpinen-4-ol comprising an E2 elimination reaction of 1,4-cineole.

Preparation of terpinen-4-ols

The disclosure is of a method of preparing alkaline metal salts of organic diamines. The method comprises, in brief, reacting the alkaline metal with a molar excess of the diamine in the presence of a catalytic proportion of a transition metal compound, at a temperature of from about 20.degree. C. to reflux temperature for the reaction mixture.

Method of preparing alkali metal salts of organic diamines

Mixtures containing 1,8-cineole are treated with hydroquinone to complex with and precipitate the 1,8-cineole. The complex in a crystalline form is separated from the mixture and dissociated to give 1,8-cineole which may be isolated in high-purity form by filtration or distillation.

Separation of 1,8-cineole by forming a complex with hydroquinone

Disclosed is a method and apparatus for dispensing fragrances of odorant, alcohols over prolonged periods of time.

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Freehold, NJ, United States of America

Peter W Mitchell