Preparation of menaquinones

Details Preparation of menaquinones Preparation of menaquinones

1975-04-07

1978-05-16

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260396R, 2604381, 260673D, 260613R, C07C 4100, C07C 4325, C07C 4500, C07C 4973

Patent

active

040898733

ABSTRACT:
3-Prenyl-substituted menaquinones are made by reacting a 3-metalo-2-alkyl-1,4-di(alkoxy or aralkoxy) naphthalene with a prenyl halide, and then oxidizing the resulting 3-prenyl-2-alkyl-1,4-di(alkoxy or aralkoxy) naphthalene to prepare the corresponding 3-prenyl-substituted menaquinone. The metallo substituent at the 3-position may be Li, Li/Cu, Cu or MgBr. The oxidation is advantageously conducted by the use of argenic oxide.

REFERENCES:
almquist, J. A. C. S., 61, 2557, (1939).
Magid et al., J. Org. Chem., 36, 2099, (1971).

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