发明名称 Process for purifying 1,1,3,4,4,6-Hexamethyltetralin.
摘要 <p>A process for purifying 1,1,3,4,4,6-hexamethyltetralin comprising melting crude 1,1,3,4,4,6-hexamethyltetralin in methanol with heating, cooling the resulting suspension, and adding seed crystals at a temperature of 45 - 60 DEG C; or a process for purifying 1,1,3,4,4,6-hexamethyltetralin comprising recrystallizing crude 1,1,3,4,4,6-hexamethyltetralin from a mixed solvent of methanol and a solvent capable of easily dissolving 1,1,3,4,4,6-hexamethyltetralin, the proportion of this solvent being 10 to 25% by weight based on the weight of methanol. These processes make it possible to obtain 1,1,3,4,4,6-hexamethyltetralin of high purity easily with high recovery by purifying crude 1,1,3,4,4,6-hexamethyltetralin.</p>
申请公布号 EP0535592(A1) 申请公布日期 1993.04.07
申请号 EP19920116638 申请日期 1992.09.29
申请人 SUMITOMO CHEMICAL COMPANY, LIMITED 发明人 TABEI, NOBUAKI;SATO, HIROSHI
分类号 C07C7/14;C07C13/47;C07C13/48 主分类号 C07C7/14
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