【発明の名称】ビタミンK4及びビタミンK4ジアセテートの製法

Title:

【発明の名称】ビタミンK4及びビタミンK4ジアセテートの製法

Document Type and Number:

Japanese Patent JPH0637414

Kind Code:

B2

Abstract:

Vitamin K3 (I; 2-methylnaphtho-1,4-quinone), vitamin K4 (IIa; 2-methyl-1,4-dihydroxynaphthalene) and vitamin K4 diacetate (IIb) are prepared by reacting 1-acetoxy-buta-1,3-diene (IV) with methylbenzoquinone (V) to give the novel compounds IIIa and IIIb and, for the preparation of IIa, deacetylating these compounds, or, for the preparation of IIb, deacetylating these compounds and at the same time reacting them with acetic anhydride, or, for the preparation of I, deacetylating these compounds and at the same time oxidizing them.

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Inventors:

Hansky Far

Application Number:

JP30029391A

Publication Date:

May 18, 1994

Filing Date:

November 15, 1991

Export Citation:

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Assignee:

Basuf Actien Gezershaft

International Classes:

C07C27/00; C07C37/00; C07C37/07; C07C37/14; C07C39/14; C07C45/00; C07C46/00; C07C50/10; C07C67/00; C07C67/08; C07C67/29; C07C67/333; C07C69/145; C07C69/157; C07C69/16; (IPC1-7): C07C39/14; C07C37/07; C07C37/14; C07C67/00; C07C69/16

Attorney, Agent or Firm:

Toshio Yano (2 outside)

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