Method for the manufacture of carotinoids and the novel intermed

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

1990-01-11

1992-11-24

Dees, Jose G.

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

Organic compounds

Boron containing

562606, 562607, 568 9, C07F 502

Patent

active

051664453

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: 3755457 (1973-08-01), Carlson
patent: 4182731 (1980-01-01), Schulz et al.
Manchand et al, J. Chem. Soc., 2019-26 (1965).
Eidem et al., Acta Chemica Scandinavica B., 29, 1015-23 (1975).
Marki-Fischer et al., Helvetica Chimica Acta, 66 (Mar. 1983).
Chem. Abstracts. vol. 81 49884c. (1974).
Chem. Abstracts, vol. 84 44452n (1976).

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