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CRYSTALS OF ALCOHOL HAVING FLUORENE SKELETON, AND METHOD FOR PRODUCING SAME
专利权人:
TAOKA CHEMICAL CO., LTD.
发明人:
KATO, Hiroyuki,SAIKI, Takafumi,NISHIDA, Yuji,FUJII, Katsuhiro
申请号:
WO2016JP68968
公开号:
WO2017006791(A1)
申请日:
2016.06.27
申请国别(地区):
世界知识产权组织国际局
年份:
2017
代理人:
摘要:
Provided are: crystals of an alcohol having a fluorene skeleton represented by formula (1) in which the melt endotherm maximum temperature by differential scanning calorimetry is 148-151°C; and a method for producing the crystals, the method including, in order, a step for obtaining a reaction solution that includes an alcohol having a fluorene skeleton represented by formula (1), a step for preparing a crystallization solution that includes aromatic hydrocarbons and methanol and that has a water content of 1 wt% or less, a step for precipitating crystals from the crystallization solution at 25°C or higher and separating the precipitated crystals, and a step for bringing the crystals to 60°C or higher and removing the methanol.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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