Dehydrophytol

Details Dehydrophytol Dehydrophytol

1977-02-22

1978-02-07

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 3302

Patent

active

040727254

ABSTRACT:
A process for the synthesis of dehydrophytol and Vitamin E comprising forming a C.sub.15 acetylene from hexahydropseudoionone and then coupling said acetylene with 1-acetoxy-4-chloro-3-methylbut-2-ene to form a C.sub.20 acetoxy-enyne. The latter is readily subjected to partial hydrogenation and saponification in that order to form a dehydrophytol, a useful intermediate for the synthesis of Vitamin E and other products.

REFERENCES:
patent: 3285950 (1966-11-01), Weber
patent: 3752843 (1973-08-01), Henrick
patent: 3855322 (1974-12-01), Henrick
patent: 4006193 (1977-02-01), Ninagawa et al.

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