Aldehyde synthesis

Details Aldehyde synthesis Aldehyde synthesis

1979-02-26

1980-12-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 4702

Patent

active

042409853

ABSTRACT:
Aldehydes are produced by cleaving 2,2-dialkyltetrahydropyrans bearing two hydrogen atoms in the sixth position with a strong acid. The 2,2-dialkyltetrahydropyran can be formed in situ by contacting the strong acid with a primary 6-alken-1-ol having at least one methyl group in the fifth position so that cyclization occurs.

REFERENCES:
Hill et al., Journal of Amer. Chem. Soc., vol. 87, No. 12, (1965) pp. 2772-2773.
Fry et al., Carbonium Ions, vol. 11, ed. Olah et al., Wiley-Intersc. (1970) Chapter 14, pp. 521, 522 and 555-571.

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