CRYSTALLINE POLYMORPH OF 9,9-BIS[6-(2-HYDROXYETHOXY)-2-NAPHTHYL]FLUORENE AND METHOD FOR PRODUCING THE SAME

To provide a novel crystalline polymorph of 9,9-bis[6-(2-hydroxyethoxy)-2-naphthyl]fluorene (BNEF) that is high in purity and low in coloration, and a method for producing the same.SOLUTION: A crystalline polymorph (A) of 9,9-bis[6-(2-hydroxyethoxy)-2-naphthyl]fluorene is prepared that has, in a pow...

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Hauptverfasser:	NISHIYAMA YUTARO, KAWAGUCHI ERI, OGATA KAZUYUKI, MIYAUCHI SHINSUKE, WATABE SAORI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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Zusammenfassung:	To provide a novel crystalline polymorph of 9,9-bis[6-(2-hydroxyethoxy)-2-naphthyl]fluorene (BNEF) that is high in purity and low in coloration, and a method for producing the same.SOLUTION: A crystalline polymorph (A) of 9,9-bis[6-(2-hydroxyethoxy)-2-naphthyl]fluorene is prepared that has, in a powder X-ray diffraction pattern, diffraction peaks at diffraction angles 2θ=12.5±0.2°, 20.4±0.2°, 22.2±0.2°, 23.1±0.2°, and 25.9±0.2°.SELECTED DRAWING: Figure 2 【課題】純度が高く、着色の少ない９，９－ビス［６－（２－ヒドロキシエトキシ）－２－ナフチル］フルオレン（ＢＮＥＦ）の新規な結晶多形体及びその製造方法を提供する。【解決手段】９，９－ビス［６－（２－ヒドロキシエトキシ）－２－ナフチル］フルオレンの結晶多形体であって、粉末Ｘ線回折パターンにおいて、回折角度２θ＝１２．５±０．２°、２０．４±０．２°、２２．２±０．２°、２３．１±０．２°、２５．９±０．２°に回折ピークを有する結晶多形体Ａを調製する。【選択図】図２