Reimer-Tiemann aldehyde synthesis process

Details Reimer-Tiemann aldehyde synthesis process Reimer-Tiemann aldehyde synthesis process

1980-06-09

1982-04-13

Helfin, Bernard

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

Organic compounds

Oxygen containing

C07C 4500

Patent

active

043249221

ABSTRACT:
Aromatic hydroxyaldehydes, such as o- and p-hydroxybenzaldehyde, are prepared by the reaction of a phenolic compound, chloroform, and an alkali metal hydroxide at a temperature from about 70.degree. to about 105.degree. C. at elevated pressure according to the Reimer-Tiemann reaction. The process improvement results in decreased reaction time.

REFERENCES:
patent: 3365500 (1968-01-01), Pontz
Hickinbottom, Reactions of Organic Compounds (1936), 99-100.
Verzele et al., Bull. Soc. Chim. Belg., vol. 65 (1956), 627-629.

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