Process for the synthesis of biologically active oxygenated...

Details Process for the synthesis of biologically active oxygenated... Process for the synthesis of biologically active oxygenated...

2007-08-07

2007-08-07

Richter, Johann (Department: 1621)

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

Organic compounds

Oxygen containing

Reexamination Certificate

active

11626225

ABSTRACT:
Alkoxy aromatic compounds are conveniently dealkylated to the corresponding phenolic compounds by treatment with aluminum chloride/N,N-dimethyl aniline complex. Aromatic poly O-demethylation is a unique feature of this invention. This process is applicable to the manufacture of polyphenols such as Resveratrol, Oxyresveratrol, Gnetol.

REFERENCES:
Loubinoux et al (Synthesis Communications, “Selective demethylation of Aryl Methyl Ethers” pp. 638-640 1980).

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