Mixtures of isomeric pentanoic acids, esters prepared therefrom,

Details Mixtures of isomeric pentanoic acids, esters prepared therefrom, Mixtures of isomeric pentanoic acids, esters prepared therefrom,

1994-09-23

1995-04-25

Prescott, Arthur C.

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

Organic compounds

Carboxylic acid esters

562544, C07C 53126, C07C 53128, C07C 4550

Patent

active

054100720

ABSTRACT:
Isomeric mixtures of pentanoic acids are prepared by subjecting butene-1/butene-2 mixtures to hydroformylation to form aldehyde mixtures, followed by oxidation of the aldehyde mixtures which have been separated off from the reaction product. The hydroformylation is carried out in a heterogeneous system in the presence of rhodium catalysts which are dissolved in water. The mixture of isomeric 5 carbon monocarboxylic acids produced, when esterified with polyhydric alcohols, yields mixtures of isomeric esters which are useful as lubricants for refrigerant compressors operated with chlorine-free, at least partly fluorinated hydrocarbons as the refrigerant.

REFERENCES:
patent: 4113442 (1978-09-01), Hoff et al.
patent: 4681972 (1987-07-01), Kaltenbronn et al.

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