Quinazoline dyes
    51.
    发明授权
    Quinazoline dyes 失效
    喹唑啉染料

    公开(公告)号:US3950340A

    公开(公告)日:1976-04-13

    申请号:US382275

    申请日:1973-07-24

    申请人: Ernst Schefczik

    发明人: Ernst Schefczik

    CPC分类号: C07D487/06 C09B57/00

    摘要: Dyes of the formula: ##SPC1##In whichR is unsubstituted or substituted alkyl or aralkyl;R.sup.1 to R.sup.6 is each hydrogen or a substituent;R.sup.7 is hydrogen or alkoxy;R.sup.8 is hydrogen or alkoxy;n is zero or 1;X.sup.- is an anion; andR.sup.1 and R.sup.8 may together be a radical: ##SPC2##Where R.sup.9 is hydrogen, alkyl or alkoxy; and at least one of the radicals R.sup.1 to R.sup.6 is arylmercapto.The dyes give bright colorations, particularly on polyesters and in resins.