PRODUCTION OF 5,8-DIMETHOXY-1,4-NAPHTHOQUINONE DERIVATIVE

Title:

PRODUCTION OF 5,8-DIMETHOXY-1,4-NAPHTHOQUINONE DERIVATIVE

Document Type and Number:

Japanese Patent JPH032390

Kind Code:

A

Abstract:

PURPOSE:To efficiently obtain a 5,8-dimethoxy-1,4-naphthoquinone derivative by using an electrolyte consisting of a mixed solvent of an org. solvent and water to electrolytically oxidize a 1,4,5,8-tetramethoxynaphthalene derivative shown by the formula. CONSTITUTION:An electrolyte consisting of a mixed solvent of an org. solvent (acetonitrile, tetrahydrofuran or methanol) and water is prepared. A 1,4,5,8- tetramethoxynaphthalene derivative shown by the general formula is mixed into the electrolyte (where R is hydrogen atom or a 1-20C chain or cyclic alkyl group and may contain a hydroxyl group or an unsaturated group in the molecule). A DC current is then applied to the electrolyte to electrolytically oxidize the derivative.

Inventors:

TORII SHIGERU
IGUCHI TSUTOMU
YAMASHITA HIDETOSHI
MATSUMOTO SHIGEAKI

Application Number:

JP13327489A

Publication Date:

January 08, 1991

Filing Date:

May 26, 1989

Export Citation:

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Assignee:

OSAKA ORGANIC CHEM IND

International Classes:

C07C50/32; C25B3/23; (IPC1-7): C07C50/32; C25B3/02

Attorney, Agent or Firm:

Sota Asahina (2 outside)

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