Oxidation of polyoxypropylene glycols to acids and ketones

Details Oxidation of polyoxypropylene glycols to acids and ketones Oxidation of polyoxypropylene glycols to acids and ketones

1989-12-11

1990-12-18

Evans, J. E.

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

Organic compounds

Carboxylic acids and salts thereof

568405, C07C 4529, C07C 49175, C07C 51245, C07C 53126

Patent

active

049787853

ABSTRACT:
Carboxylic acid derivatives and methyl ketone derivatives of polyoxypropylene glycols are prepared by the selective nitric acid oxidation of a polyoxypropylene glycol in the presence of an alkali metal nitrite. If the alkali metal nitrite is added to an aqueous solution of nitric acid and the polyoxypropylene glycol is thereafter added, carboxylic acid derivatives of the polyoxypropylene glycol are provided. If a mixture of an alkali metal nitrite and a polyoxypropylene glycol is added to an aqueous solution of nitric acid, a reaction product containing a predominant amount of methyl ketone derivatives of the polyoxypropylene glycol is provided.

REFERENCES:
patent: 2312468 (1943-03-01), Ebel et al.
patent: 2653972 (1953-09-01), Ash et al.
patent: 2659754 (1953-11-01), Ash et al.
patent: 2886590 (1954-05-01), Montgomery et al.

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