2,2,3,6-tetramethyl-cyclohexane-carbaldehyde

Details 2,2,3,6-tetramethyl-cyclohexane-carbaldehyde 2,2,3,6-tetramethyl-cyclohexane-carbaldehyde

1991-02-20

1992-01-14

Lone, Warren B.

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

Organic compounds

Oxygen containing

549332, 568443, 568447, C07C 4728, C07C 4732

Patent

active

050813129

ABSTRACT:
New 4,4,5,8-tetramethyl-1-oxaspiro[2,5]octane. A process for its preparation starting from 2,2,3,6-tetramethyl-1-cyclohexanone is described.
4,4,5,8-Tetramethyl-1-oxaspiro[2,5]octane is a useful raw material for the preparation of 2,2,3,6-tetramethyl-cyclohexane-carbaldehyde, a key intermediate for the synthesis of valuable fragrance ingredients.

REFERENCES:
patent: 4010213 (1977-03-01), Naegel
patent: 4636602 (1986-11-01), Schulte-Elte et al.
patent: 4868340 (1989-09-01), Fehr et al.
Rosenberger et al., 63 Helv. Chim, Acta., p. 1665 (1980).
Schulte-Elte et al., 68 Helv. Chim. Acta., p. 1961 (1985).
Schappi et al., 30 Helv. Chim. Acta. p. 2199 (1947).

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