公开(公告)号：US3892784A

公开(公告)日：1975-07-01

申请号：US45178574

申请日：1974-03-18

Applicant: BASF AG

Inventor： ELSER WOLFGANG ,  SCHMIDT HELMUT

IPC: C07C50/34 ,  C07C45/00 ,  C07C46/00 ,  C07C67/00 ,  C07C49/68

CPC classification number: C07C46/00 ,  C07C50/34

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.

Abstract translation: 在至少化学计量量的无水或几乎无水的碳酸钾存在下，通过加热使硝基化合物与甲醇反应，从相应的硝基蒽醌制备蒽醌的α-甲基醚的改进方法。 以高空时收率获得纯α-甲基醚。 如果需要，所用的α-硝基蒽醌可以是诸如在蒽醌的一硝化或二硝化中获得的混合物。

公开(公告)号：US3657283A

公开(公告)日：1972-04-18

申请号：US3657283D

申请日：1970-03-02

Applicant: BASF AG

Inventor： SCHMIDT HELMUT ,  SCHUHMACHER ALFRED

IPC: C09B3/06 ,  C09B3/12

CPC classification number: C09B3/06

Abstract: PRODUCTION OF BZ-1-BZ-1''-DIBENZANTHRONYL SULFIDES FROM HALOGEN-SUBSTITUTED BZ-1-BENZANTHRONES CHRACTERIZED BY THE USE OF AN ETHER ALCOHOL AS SOLVENT AND OF AN ALKALI METAL SULFIDE.