Azo dyes - prepd by coupling diazotised amines with benzothiazolyl derivs

    公开(公告)号:DE2232449A1

    公开(公告)日:1974-01-10

    申请号:DE2232449

    申请日:1972-07-01

    Applicant: BASF AG

    Abstract: Yellow to organe azo dyes for natural and synthetic polyamides, e.g. wool, silk, leather, nylon 6 or 6,6; cellulose esters, e.g. -2 1/2 and triacetate and synthetic linear polyesters, have the formula: (where D is a diazo component gp.; X is 2-9 C opt. substd. carbamoyl or carboxylate; M is H, Na, K or opt. substd. NH4 and n is 0 to 3). They are prepd diazotising amines DNH2 and coupling with cpds. (where p is 0 or 1) or by sulphonating cpds. of formula: D-NH-=CX- , esp. with oleum.

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