Title:
【発明の名称】1―ニトロアントラキノン類の製造方法
Document Type and Number:
Japanese Patent JPH0768184
Kind Code:
B2
Abstract:
PURPOSE:To obtain the subject compound in high selectivity, yield and purity with simple operation under mild reaction condition by reacting 5-nitro-1,4,4a,9a- tetrahydroanthraquinones in the presence of the basic compound and oxidizing the reaction product. CONSTITUTION:A 5-nitro-1,4,4a,9a-tetrahydroanthraquinone compound of formula I (R<1> and R<2> are H, 1 to 4C alkyl or halogen) is reacted in the presence of a metallic basic compound of group Ia, Ib, IIa, IIb, etc., of the periodic table and the obtained compound of formula II is oxidized in the presence of a metallic basic compound of group Ia, Ib, IIb, etc., of the periodic table to obtain the objective compound of formula III useful as a raw material for 1- aminoanthraquinones, intermediate for dye or pigment, etc. The basic solution left after separation of the objective compound can be recycled. The separation of the product and the treatment of waste water can easily be carried out without causing environmental pollution. The objective compound can be produced at a low cost and the present process is advantageous from industrial viewpoint.
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Inventors:
Sugishima Noboru
Noriaki Ikeda
Fujii Yasushi
Akira Inoue
Noriaki Ikeda
Fujii Yasushi
Akira Inoue
Application Number:
JP13020589A
Publication Date:
July 26, 1995
Filing Date:
May 25, 1989
Export Citation:
Assignee:
Nippon Shokubai Co., Ltd.
International Classes:
C07C201/06; C07C205/47; C07C239/14; C25B3/23; (IPC1-7): C07C205/47; C07C201/06
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