Alpha-tocopherol intermediates

Details Alpha-tocopherol intermediates Alpha-tocopherol intermediates

1986-10-16

1987-05-05

Milestone, Norma S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30332

Patent

active

046634703

ABSTRACT:
A novel process for the manufacture of quinone derivatives which are suitable as intermediates for the manufacture of (2RS,4'R,8'R)-tocopherol is described. In this process a quinone of the formula ##STR1## is reacted with a phytyl derivative of the formula ##STR2## If desired, the thus-obtained compound of the formula ##STR3## is subsequently converted into the compound of the formula ##STR4## and, if desired, this compound is converted into the compound of the formula ##STR5## The compound of formula V is known and can be converted into (2RS,4'R,8'R)-tocopherol in a known manner.

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