Tetrahydronaphthalene derivatives and their production

Details Tetrahydronaphthalene derivatives and their production Tetrahydronaphthalene derivatives and their production

1986-08-26

1988-08-30

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

562490, 568715, 568812, 570183, 252522A, C07C 6976

Patent

active

047678828

ABSTRACT:
Tetrahydronaphthalene derivatives of the formula: ##STR1## wherein either one of R.sup.1 and R.sup.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and the other is acetyl and R.sup.3 is hydrogen or methyl in a racemic or optically active form, which are useful as perfumes or intermediates for production of perfumes, are prepared from an R.sup.4 -benzene and pyrocine through the intermediary compounds of the formula: ##STR2## wherein R.sup.4 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy present at either one of 6- and 7-positions and A is hydrogen, carboxyl, C.sub.2 -C.sub.5 alkoxycarbonyl, halogen, methyl, hydroxymethyl or halomethyl.

REFERENCES:
patent: 3499751 (1970-03-01), Wood et al.
patent: 3927083 (1975-12-01), Hall et al.
patent: 3998875 (1976-12-01), Tull
patent: 4097674 (1978-06-01), Fried et al.

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