Condensation of aldehydes

Details Condensation of aldehydes Condensation of aldehydes

1986-09-24

1988-11-01

Reamer, James H.

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

Organic compounds

Oxygen containing

C07C 4545

Patent

active

047821868

ABSTRACT:
A liquid phase process for preparing alpha-hydroxyketones is provided. The process comprises condensing one or more aldehydes in the presence of a thiazolium salt and a sterically hindered base having a pKa value greater than 12.0. The sterically hindered base is preferably either an amidine or a secondary or tertiary alkoxide of an alkali metal.

REFERENCES:
patent: 4301310 (1981-11-01), Wagner
patent: 4326086 (1982-04-01), Mohring et al.
patent: 4358619 (1982-11-01), Stemmler et al.
Matsumoto et al, J. Org. Chem., vol. 50, pp. 603-606 (1985).

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