Process for the preparation of Dl-.alpha.-tocopherol of high pur

Details Process for the preparation of Dl-.alpha.-tocopherol of high pur Process for the preparation of Dl-.alpha.-tocopherol of high pur

1979-02-13

1980-08-12

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D31172

Patent

active

042172853

ABSTRACT:
A process for preparing high purity dl-.alpha.-tocopherol by condensing trimethylhydroquinone and a phytol in the presence of zinc chloride, a mineral acid and, either silica-alumina or silica gel, or a combination of silica-alumina and silica gel, is described.

REFERENCES:
patent: 2411969 (1946-12-01), Karrer et al.
patent: 3444213 (1969-05-01), Nelan
patent: 3459773 (1969-08-01), Moroe et al.

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