发明名称 |
METHODS FOR PURIFYING 2-ARYL-3,3-BIS(HYDROXYARYL)PHTHALIMIDINES |
摘要 |
Methods for synthesizing and purifying 2-aryl-3,3-bis(4-hydroxyaryl)phthalimidine compounds are provided. The method includes heating a reaction mixture including a phenolphthalein, a primary aryl amine, and an acid catalyst to form a phthalimidine; precipitating the phthalimidine from the reaction mixture to provide a crude phthalimidine; providing a solution including the crude phthalimidine, an additive, and at least one solvent; contacting the solution with one or more purification agents to provide a treated solution; precipitating and recovering a phthalimidine adduct from the treated solution; and recovering a purified phthalimidine compound from the adduct. |
申请公布号 |
EP3134387(A1) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20150726703 |
申请日期 |
2015.04.22 |
申请人 |
SABIC Global Technologies B.V. |
发明人 |
PILLAI, Anup Krishnnan Appukuttan;KONDA, Shivakumar;MEDIRATTA, Gaurav;BHOTLA, Venkata Rama Narayanan Ganapathy;MALLIKA, Salkod Parameshwar;NADKARNI, Pradeep Jeevaji |
分类号 |
C07D209/46;C08G64/12 |
主分类号 |
C07D209/46 |
代理机构 |
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代理人 |
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