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    • 1. 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
    • 将苝-3,4:9,10-四羧酸二酰亚胺转化为适合用作荧光染料的形式的方法
    • US20050251930A1
    • 2005-11-17
    • US10514564
    • 2003-06-06
    • Peter ErkSimone SchaferArno BohmPeter BlaschkaHarald ArmsWilli Helfer
    • Peter ErkSimone SchaferArno BohmPeter BlaschkaHarald ArmsWilli Helfer
    • C09B67/10C09B67/48D06P3/52
    • 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 in an organic or inorganic solvent whose molecules have a molecular volume of ≦230 Å3 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.
    • 用于转化通式I的苝-3,4:9,10-四甲酰亚胺的方法,其中R 1和R 2各自为非支链,支链或环状C < SUB-1-C 8 - 烷基至适于用作荧光染料的形式,其包括:a)将苝-3,4:9,10-四甲酰亚胺溶解或悬浮于 分子在0-250℃下具有分子体积<= 230Å3的有机或无机溶剂,b1)将步骤a)中获得的溶液冷却至或低于结晶温度, 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,加入水或溶剂的稀溶液直到形成第一晶体,并保持 在该温度下进一步结晶的溶液或b2)当步骤a)中的温度wa)时将步骤a)中得到的悬浮液冷却至或低于结晶温度 高于结晶温度,并将悬浮液保持在该温度下进一步结晶,c)分离步骤b)中形成的溶剂化物晶体,d)然后从溶剂合物晶体中除去溶剂,以及新型苝-3的结晶形式, 4:9,10-四羧酸二酰亚胺。