Astaxanthin intermediates

Details Astaxanthin intermediates Astaxanthin intermediates

1991-12-09

1992-11-24

Shaver, Paul F.

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

Organic compounds

Amino nitrogen containing

568 30, 568 31, 568 33, C07C31726

Patent

active

051664410

ABSTRACT:
The present invention related to novel compounds useful in the manufacture of astaxanthin and to processes for their preparation. The novel intermediates have the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently are C.sub.1-6 -alkyl which may be branched or phenyl, and ##STR2## wherein R' is alkyl, alkoxy, NO.sub.2, NH.sub.2 or halogen.

REFERENCES:
patent: 4384143 (1983-05-01), Fox et al.
patent: 4469891 (1984-09-01), Fayter et al.
patent: 4777297 (1988-10-01), Ogawa et al.
patent: 4822905 (1989-04-01), Lee et al.
patent: 4837352 (1989-06-01), Knudsen
patent: 4867784 (1989-09-01), Keil et al.
patent: 4960940 (1990-10-01), Papenfuhs et al.
patent: 5110343 (1992-05-01), Ueda et al.

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