Preparation of resorcinol derivatives

Details Preparation of resorcinol derivatives Preparation of resorcinol derivatives

1982-04-21

1984-01-17

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

560 64, 560 70, 568648, 568650, 568771, C07C12175, C07C 3700, C07C 4100, C07C 6984

Patent

active

044263325

ABSTRACT:
A process for the preparation of resorcinol derivatives of the general formula I ##STR1## where R.sup.1 is carbalkoxy, nitrile, alkyl or H and R.sup.2 to R.sup.5 are H or lower alkyl, by reacting the corresponding cyclohexane-1,3-dione (II) with oxygen or an oxygen-containing gas in the presence of a catalytic amount of a copper compound and of from 1 to 10 moles of a hydrogen halide, or from 0.5 to 5 moles of thionyl chloride per mole of II, in an alkanol having from 1 to 6 carbon atoms, tetrahydrofuran or methyl tert.-butyl ether as the solvent, at from 0.degree. to 150 C., without the addition of a significant amount of water to the reaction mixture. Some of the resorcinol derivatives prepared are useful scents with fragrance notes of the character of the odoriferous substance of natural oak moss.

REFERENCES:
patent: 3819725 (1974-06-01), Brossi et al.
patent: 3859365 (1975-01-01), Young
patent: 4072660 (1978-02-01), Muller et al.

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