Preparation of 9-(Z)-retinoic acid

Details Preparation of 9-(Z)-retinoic acid Preparation of 9-(Z)-retinoic acid

1994-12-16

1996-04-02

Dees, Jose G.

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

Organic compounds

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

554206, 554207, 554221, 568 9, C07C 5100, C07F 902

Patent

active

055042309

ABSTRACT:
A process for preparing 9-(Z)-retinoic acid from mother liquors from the industrial preparation of C.sub.15 -triarylphosphonium salts of the general formula I ##STR1## where R.sup.1 to R.sup.3 are each aryl and X.sup..crclbar. is halogen or (HSO.sub.4).sup..crclbar., in an organic solvent, which comprises

REFERENCES:
patent: 4182731 (1980-01-01), Schulz et al.
Angew. Chem. 72, Nr. 22 (1960) pp. 811-819.
Nature 355 (1992) pp. 359-361.
Angew. Chem. 77 (1965) 277-360.
Agnew Chem. 80 (1968) 35-36.

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