Method for the manufacture of carotinoids and the novel intermed

Organic compounds -- part of the class 532-570 series – Organic compounds – Boron containing

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562606, 562607, 568 9, C07F 502

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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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