Tetramethyl-1-oxaspiro[2.5]octane

Details Tetramethyl-1-oxaspiro[2.5]octane Tetramethyl-1-oxaspiro[2.5]octane

1989-12-13

1991-05-21

Robinson, Allen J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

568420, 568822, C07D30302

Patent

active

050177117

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 synthetis of valuable fragrance ingredients.

REFERENCES:
patent: 4016213 (1977-03-01), Naegeli
patent: 4626602 (1986-12-01), Schulte-Elte et al.
F. Fitjer et al., Synthetic Communication, "The Wittig Reaction Using Potassium-Tert-Butoxide High Yield Methylenations of Sterically Hindered Ketones", 15(10), pp. 885-864 (1985).
E. Horning, et al., J. Am. Chem. Soc., "Analogues of Dihydroionone", 71, pp. 1771-1772 (1949).
M. Rosenberger et al., Helv. Chim. Acta, "The Synthesis of .beta., .gamma. and .alpha.,.beta. Unsaturated Aldehydes via Polyene Epoxide", 63 (6), pp. 1665-1674 (1980).
K. Schulte-Elte et al. (II), Helv. Chim. Acta., "Diastereoselektivitat der Geruchswahrnehmung . . . ", 68, pp. 1961-1985 (1985).
G. Schappi et al., Helv. Chim. Acta, "Einige Synthesen aus dem Gebiet . . . ", 30, pp. 2199-2211 (1947).

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