Process for the preparation of (.+-.)-3a-6,6,9a-tetramethylperhy

Details Process for the preparation of (.+-.)-3a-6,6,9a-tetramethylperhy Process for the preparation of (.+-.)-3a-6,6,9a-tetramethylperhy

1984-08-08

1986-09-23

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

549458, 560119, C07C 3523

Patent

active

046137106

ABSTRACT:
3a,6,6,9a-Tetramethylperhydronaphto[2,1-b]furan, a typical ambergris perfume ingredient is prepared via a novel process from 1.beta.-(2-hydroxyethyl)-perhydro-2,5,5,8a.beta.-tetramethyl-2.beta.-trans -naphthalenol by cyclization with an acidic cyclization agent in the presence of nitromethane.

REFERENCES:
patent: 4296038 (1981-10-01), Ho et al.
Sousa et al.: "J. Org. Chem.", vol. 25, pp. 108- 111, (1960).
Sibiertseva et al., "Chem. Abstracts", vol. 93, p. 114751w (1980).

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