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    • 6. 发明申请
    • METHOD FOR CONVERTING PERYLEN-3,4:9,10-TETRACARBOXYLIC ACID DIIMIDES INTO A FORM SUITABLE FOR USE AS A FLUORESCENT DYE
    • 将季戊四烯-3,4:9,10-四羧酸二异氰酸酯转化为适用于荧光染料的形式的方法
    • US20090176985A1
    • 2009-07-09
    • US12346262
    • 2008-12-30
    • Peter ERKSimone SchaeferArno BohmPeter BlaschkaHarald ArmsWilli Helfer
    • Peter ERKSimone SchaeferArno BohmPeter BlaschkaHarald ArmsWilli Helfer
    • C07D471/06
    • C09B67/0014C09B67/0025
    • A process for converting perylene-3,4:9,10-tetracarboximides of the general formula I in which R1 and R2 are each unbranched, branched or cyclic C1-C8-alkyl to a form suitable for use as fluorescent dyes, which comprises a) dissolving or suspending the perylene-3,4:9,10-tetracarboximides whose molecules have a molecular volume of ≦230 Å3 in an organic or inorganic solvent at from 0 to 250° C., b1) cooling the solution obtained in step a) to or below the crystallization temperature and, in the case of an organic solvent, if desired at the same time removing excess solvent until the first crystals form, or, in the case of an inorganic solvent, adding water or dilute aqueous solutions of the solvent until the first crystals form, and maintaining the solution at this temperature for further crystallization or b2) cooling the suspension obtained in step a) to or below the crystallization temperature when the temperature in step a) was above the crystallization temperature, and maintaining the suspension at this temperature for further crystallization, c) isolating the solvate crystals formed in step b) and d) then removing the solvent from the solvate crystals, and also novel crystalline forms of perylene-3,4:9,10-tetracarboxylic diimides.
    • 用于将通式I的苝-3,4:9,10-四甲酰亚胺转化为其中R 1和R 2各自是非支链,支链或环状的C 1 -C 8烷基的方法,其适于用作荧光染料,其包含 )在0-250℃下将分子体积分数为<= 230的二萘嵌苯-3,4:9,10-四甲酰亚胺溶解或悬浮在有机或无机溶剂中,b1)冷却步骤 a)达到或低于结晶温度,并且在有机溶剂的情况下,如果需要,同时除去过量的溶剂直到形成第一晶体,或者在无机溶剂的情况下,加入水或稀的水溶液 溶剂直至形成第一晶体,并将溶液保持在该温度下进一步结晶,或b)当步骤a)中的温度高于结晶温度时,将步骤a)中获得的悬浮液冷却至或低于结晶温度,并维持 g在该温度下的悬浮液进一步结晶,c)分离步骤b)中形成的溶剂合物晶体,d)然后从溶剂合物晶体中除去溶剂,以及新型的苝-3,4:9,10-四羧酸的结晶形式 二酰亚胺