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    44.
    发明专利
    未知

    公开(公告)号：DE1569645A1

    公开(公告)日：1970-05-14

    申请号：DE1569645

    申请日：1966-03-12

    Applicant: BASF AG

    Inventor： BAUMANN DR HANS ,  HANSEN DR GUENTER

    IPC: C09B57/06

    Abstract: 1,170,166. Basic perinaphtholactam dyestuffs. BADISCHE ANILIN- & SODA-FABRIK A.G. 10 March, 1967 [12 March, 1966; 25 June, 1966], No. 11284/67. Heading C4P. The invention comprises basic perinaphtholactam dyes of the general formula wherein R 1 is H or an alkyl, cycloalkyl, aralkyl or aryl radical which may be attached to the naphthalene nucleus to form a ring; R 2 is hydroxy, alkyl or aryl, R 3 is H or alkyl ; R 4 is H, alkyl or aryl; A (-) is an anion and Ar is a pphenylene radical optionally substituted by alkyl or alkoxy radicals, and the naphthalene nucleus may be substituted by halogen or alkyl, alkoxy, acyl, acyl-amino or dialkylamino groups. They are prepared by an optionally N-substituted perinaphtholactam with a pyrazoline of the formula wherein Ar, R 2 , R 3 and R 4 are as above in presence of a condensing agent, e.g. phosphorous oxychloride or bromide or phosphorous tri- or penta-chloride. The reaction takes place at 50-170‹ C. optionally in presence of a diluent, e.g. chlorobenzenes, and a Lewis acid, e.g. zinc chloride or tin tetrachloride. The dyes which may be obtained in the form of a chloride, sulphate, nitrate, acetate, formate, methyl sulphate, arylsulphate, tetrachlorozincate or tetrafluoroborate are used for dope-dyeing or printing acrylonitrile or vinylidene cyanide polymers or copolymers in blue shades.

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