Cyclized unsaturated keto acids

Details Cyclized unsaturated keto acids Cyclized unsaturated keto acids

1983-01-28

1987-10-20

Moyer, Donald B.

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

Organic compounds

Carboxylic acids and salts thereof

252 515A, 562503, 562508, 564189, 564461, 564462, C07C 5982, C10M 128, C10M 136

Patent

active

047015535

ABSTRACT:
Unsaturated cyclic keto acid may be prepared by cyclizing alken-2-yl dicarboxylic acid anhydride with Lewis acid catalyst in anhydrous Friedel-Craft solvent. Amides of these unsaturated cyclic keto acids useful as friction improvers in lubricating oils, may be prepared by reaction of an amine such as ethanolamine with an unsaturated cyclic keto acid.

REFERENCES:
patent: 4385904 (1983-05-01), Sawicki et al.
Chemical Abstracts, vol. 52, Abstract #1076b, 1958; Herz.
Chemical Abstracts, vol. 63, Abstract #13067b, 1965; Chiusoli et al.
Chemical Abstracts, vol. 88, p. 356, Abstract #62056y, 1978; Jankowski et al.

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