Preparation of .alpha.-hydroxymethal acetals

Details Preparation of .alpha.-hydroxymethal acetals Preparation of .alpha.-hydroxymethal acetals

1991-05-28

1993-11-30

Niebling, John

Chemistry: electrical and wave energy

Processes and products

204 78, 204 79, C25B 300

Patent

active

052661717

ABSTRACT:
A process for preparing an .alpha.-hydroxymethyl acetal by the electrochemical oxidation of a carbonyl compound, e.g. an aliphatic or aromatic aldehyde or ketone, with a C.sub.1 -C.sub.8 -alkanol under non-alkaline conditions and in the presence of an auxiliary electrolyte containing from 0 to 5% and preferably 0.5 to 3% by weight of water.

REFERENCES:
patent: 4284825 (1981-08-01), Degner
patent: 4318783 (1982-03-01), Buhmann et al.
patent: 5078838 (1992-01-01), Hermeling et al.
Tetrahedron Letters 25 (1984) 691-694 and 30 (1989) 371-374.
J. Org. Chem. 51 (1986) 130-135.
J. Chem. Soc., Perkin I (1986) 73-77.
Zeitschrift Fur Naturforschung, Part B, vol. 31B,. Nr. 2 1976, pp. 175-177.
Tetrahedron, vol. 47, Nr. 4/5, Jan. 28, 1991, pp. 895-905.

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