Process for production of 2,6-dimethylnaphthalene

Details Process for production of 2,6-dimethylnaphthalene Process for production of 2,6-dimethylnaphthalene

1992-09-14

1994-01-04

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

585 26, 585410, 585411, C07C 500

Patent

active

052762300

ABSTRACT:
There is disclosed a process for efficiently producing 2,6-dimethylnaphthalene used for the production of polyethylene naphthalate which comprises subjecting 2-methyl-1-(p-tolyl)butene and/or 2-methyl-1-(p-tolyl)butane as a starting raw material to cyclization dehydrogenation reaction by the use of a catalyst comprising a platinum component and at least one component selected from the group consisting of alkali metals and alkaline earth metals each being supported on aluminum oxide. The above process enables the production of the objective compound in a high yield at a low cost by using the catalyst having high safety and stability from the widely available starting material, thereby enhancing the industrial significance of the process.

REFERENCES:
patent: 3931348 (1976-01-01), Taniguchi et al.
patent: 5008479 (1991-04-01), Abe et al.
patent: 5023390 (1991-06-01), Abe et al.
patent: 5068480 (1991-11-01), Takagawa et al.
Chemical Abstracts, vol. 83, No. 19, Nov. 10, 1975, Columbus, Ohio, US; Abstract No. 163903z, p. 523; & JP-A-75 012 429 (Teijin).

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