Preparation of a dimethyltetralin by cyclizing an orthotolylpent

Details Preparation of a dimethyltetralin by cyclizing an orthotolylpent Preparation of a dimethyltetralin by cyclizing an orthotolylpent

1993-02-26

1995-03-28

Pal, Asok

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

585410, 585411, 585430, 585477, 585480, 585481, C07C 1524

Patent

active

054018927

ABSTRACT:
A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1- or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed wherein the orthotolylpentene or phenylhexane is cyclized to the dimethyltetralin using an ultra-stable crystalline aluminosilicate molecular sieve Y-zeolite.

REFERENCES:
patent: 4950825 (1990-08-01), Sikkenga et al.
patent: 5030781 (1991-07-01), Sikkenga et al.
patent: 5034561 (1991-07-01), Sikkenga et al.

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