Document Type and Number:
Japanese Patent JPS5549057
Kind Code:
B2
Abstract:
An improved process for the manufacture of alpha -methyl ethers of anthraquinone from the corresponding nitroanthraquinones by reacting the nitro compound with methanol in the presence of at least the stoichiometric amount of anhydrous or virtually anhydrous potassium carbonate with heating. Pure alpha -methyl ethers are obtained in high space-time yields. The alpha -nitroanthraquinones used may, if desired, be mixtures such as are obtained in the mononitration or dinitration of anthraquinone.
Application Number:
JP3112474A
Publication Date:
December 10, 1980
Filing Date:
March 20, 1974
Export Citation:
International Classes:
C07C50/34; C07C45/00; C07C46/00; C07C67/00