Asymmetric synthesis of natural vitamin E.

Details Asymmetric synthesis of natural vitamin E. Asymmetric synthesis of natural vitamin E.

1989-05-15

1990-04-03

Pal, Asok

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

Organic compounds

Cyclohexadiene having atoms double bonded directly at the 1-...

558 44, 558 57, 558231, 552310, C07C 5006

Patent

active

049138510

ABSTRACT:
An asymmetric synthesis for Vitamin E in an optically active pure form for 4-(2,5-diloweralkanoyloxy)-3,4,6-trimethylphenyl-butan-2-one and intermediates therein.

REFERENCES:
patent: 4062879 (1977-12-01), Kijima et al.
patent: 4495104 (1988-01-01), Imada
patent: 4559177 (1985-12-01), Okutani et al.
patent: 4831185 (1989-06-01), Chan et al.
patent: 4855085 (1989-08-01), Chan et al.
Mayer et al., Helv. Chimca Acta, vol. 67, pp. 650-671, (1983).

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