Method for the manufacture of carotinoids and novel intermediate

Details Method for the manufacture of carotinoids and novel intermediate Method for the manufacture of carotinoids and novel intermediate

1992-06-29

1993-05-04

Cintins, Marianne M.

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

Organic compounds

Phosphorus containing

C07F 930

Patent

active

052083810

ABSTRACT:
Phosphonium salts of the formula ##STR1## wherein A signifies aryl and Y.sup.- signifies C.sub.1 -C.sub.6 -alkanoate or hydroxytrifluoroborate, as well as their manufacture from 3,7,11-trimethyldodeca-1,4,6,10-tetraen-3-ol with a triarylphosphine and with a C.sub.1 -C.sub.6 -alkanoic acid or a boron trifluoride etherate and, if desired after conversion into the phosphonium salt of a strong acid, further reaction to give lycopene.

REFERENCES:
patent: 4540823 (1985-09-01), Doorakian et al.
Eidem et al., Acta Chemica Scandinavica B29 (1975) pp. 1015-1023.

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