Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1988-07-01
1989-11-28
Ceperley, Mary E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549342, 549369, 549370, 549375, 549415, 549420, 549421, 560 11, 560194, 562429, 568 28, 568 31, 568 32, 568 33, 568 34, C07D31772, C07C14708
Patent
active
048838870
ABSTRACT:
A process for producing carotenoids and carotenoid intermediates via reduction of sulfonyl polyenes with a dithionite in the presence of ammonia or an aliphatic amine, including novel intermediates in this process, which carotenoids are known coloring agents for foodstuffs, animal feeds, pharmaceuticals, etc.
REFERENCES:
patent: 3960967 (1976-06-01), Olson et al.
patent: 4147708 (1979-04-01), Manchand
patent: 4331814 (1982-05-01), Chabardes et al.
Julia et al, Tetrahedron Letters, vol. 23, No. 24, p. 2465 (1982).
Bremmer et al, Tetrahedron Letters, vol. 23, No. 24, p. 3265 (1982).
Julia et al, Tetrahedron, vol. 42, No. 9, pp. 2469, 2475 (1986).
Otera, Chemistry Letters, p. 1883 (1985).
Field, J. Am. Chem. Soc., vol. 74, p. 3919 (1952).
Fischli, Helv. Chim. Acta, vol. 58, Fasc 5 Nr 161-162 p. 1492 (1975).
Manchand, Helv. Chim. Acta, vol. 59 Fasc 2 Nr 43-44, p. 387 (1976).
Manchand, J. Org. Chem. vol. 43, No. 25, 4769 (1978).
Mandai, J. Am. Chem. Soc. 1984, 106, p. 3670.
Bernhard Kurt
Jaggli Stephan
Kreienbuhl Paul
Schwieter Ulrich
Ceperley Mary E.
Epstein William H.
Gould George M.
Hoffmann-La Roche Inc.
Saxe Jon S.
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