Process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphth

Details Process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphth Process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphth

1984-02-23

1985-02-12

Reamer, James H.

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

Organic compounds

Oxygen containing

560119, C07C 4541

Patent

active

044993072

ABSTRACT:
Described is a process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphthalenone having the structure: ##STR1## and intermediates useful in such process defined according to the structure: ##STR2## wherein one of R.sub.3 or R.sub.4 is hydrogen and the other of R.sub.3 or R.sub.4 is acetyl; and one of R.sub.1 or R.sub.2 is methyl and the other of R.sub.1 or R.sub.2 is acetoxy, said compound defined according to the structure: ##STR3## being useful in augmenting or enhancing the aroma or taste of consumable materials including foodstuffs, chewing gums, medicinal products, chewing tobaccos, toothpastes, smoking tobaccos, smoking tobacco articles, perfumes, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softeners, fabric softener articles and perfumed polymers. Also defined and claimed is the pure crystalline form of the compound defined according to the structure: ##STR4##

REFERENCES:
McCurry et al., Chem. Abst., vol. 84, #179,733a (1976).
Teisseire et al., Chem. Abst., vol. 83, #10458h (1975).
Prochayka et al., Chem. Abst., vol. 42, #8162h (1948).
Smith, J.A.C.S., vol. 65, pp. 631-635 (1943).
Schwenk et al., J.A.C.S., vol. 64, pp. 3050-3051 (1942).
McMurry et al., J. Chem. Soc. C, 1967, pp. 1804-1808.

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