1.
    发明专利
    未知

    公开(公告)号:DE2334713A1

    公开(公告)日:1975-01-30

    申请号:DE2334713

    申请日:1973-07-07

    Applicant: BASF AG

    Abstract: 1,5-DINITROANTHRAQUINONE IS ISOLATED FROM A NITRATION MIXTURE CONTAINING DINITROANTHRAQUINONES BY ALLOWING N-methylpyrrolidone to act on the nitroanthraquinone mixture. From 10 to 45% by weight of the nitroanthraquinone mixture remains undissolved and the undissolved material is separated from the solution. A dinitroanthraquinone is isolated which contains from 75 to 95% by weight of 1,5-dinitroanthraquinone and practically no beta -dinitroanthraquinones.

    5.
    发明专利
    未知

    公开(公告)号:DE2336289A1

    公开(公告)日:1975-02-06

    申请号:DE2336289

    申请日:1973-07-17

    Applicant: BASF AG

    Abstract: 1467386 o-Benzyl toluenes BASF AG 16 July 1974 [17 July 1973] 31396/74 Heading C5E [Also in Division C2] o-Benzyl toluenes of the formula I wherein R 1 are H or halogen, R 2 are H, halogen or an aliphatic or aromatic radical are prepared by reacting an o-xylyl halide of the formula II with a benzene compound of the formula III in the presence of BF 3 activity and associated oxygen-containing acid activity. The BF 3 activity may be provided by free BF 3 or an adduct thereof. The oxygen-containing acid activity may be provided by any acid including a Lewis acid having one or more oxygen atoms in the molecule or in the complex if in adduct form. Consequently both activities may be provided by complexes of BF 3 with water, ethanol, phosphoric acid or ethers. Certain compounds of the formula I are claimed per se namely when (i) R 1 are H or halogen and R 2 are all aromatic; or (ii) one R 1 is halogen, and the other R 1 are H or halogen and R 2 are H or aliphatic; or (iii) all R 1 are H, one R 2 is aromatic, one R 2 is H, halogen or aliphatic and the other R 2 are H, halogen, aliphatic or aromatic; or (iv) all R 1 are H, one R 2 is halogen, one R 2 is aliphatic and the remaining R 2 are H, halogen or aliphatic. Hydrocarbons prepared in the examples are: o-benzyltoluene; 2,3 1 ,4 1 -trimethyldiphenyl methane; and 2-methyl-4 1 -phenyl-diphenyl methane.

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