Process of preparing .omega.-hydroxy acids

Details Process of preparing .omega.-hydroxy acids Process of preparing .omega.-hydroxy acids

1994-11-14

1996-03-26

Dees, Jose/ G.

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

Organic compounds

Fatty compounds having an acid moiety which contains the...

554124, C07C 5100

Patent

active

055022260

ABSTRACT:
A new synthesis of .omega.-hydroxy acids, which employs commercially available starting materials and lowers the cost of production. The process involves coupling a fatty acyl group by enamine chemistry, followed by a ring expansion and selective reduction of ketoacid.

REFERENCES:
patent: 5099036 (1992-03-01), Yoshida et al.
patent: 5191096 (1993-03-01), Yokota et al.
Heslinga, L. et al., "Synthesis of the linoleic acid esters of some unsaturated long-chain .omega.-hydroxy fatty acids," Recl. Trav. Pays-Bas, 103, pp. 348-351 (1984).
Ames, D. E. et al., "Syntheses of Long-chain Acids. Part III. 9,10,18-Trihy-droxyoctadecanoic Acids", J. Chem. Soc. (C) 1967, pp. 1556-1558.

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