JPWO2008102920A1 - 光学異性体分離用充填剤 - Google Patents
光学異性体分離用充填剤 Download PDFInfo
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- JPWO2008102920A1 JPWO2008102920A1 JP2009500270A JP2009500270A JPWO2008102920A1 JP WO2008102920 A1 JPWO2008102920 A1 JP WO2008102920A1 JP 2009500270 A JP2009500270 A JP 2009500270A JP 2009500270 A JP2009500270 A JP 2009500270A JP WO2008102920 A1 JPWO2008102920 A1 JP WO2008102920A1
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- filler
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- polysaccharide
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- 238000007613 slurry method Methods 0.000 description 1
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Abstract
Description
1.多糖誘導体が担体上で担体と化学的に結合されてなる光学異性体分離用充填剤であって、充填剤中のハロゲン含有率が3.0%〜5.0%であることを特徴とする光学異性体分離用充填剤。
2.多糖の水酸基またはアミノ基が下記の式(I)または/及び(II)で表される化合物で修飾されていることを特徴とする1に記載の光学異性体分離用充填剤。
3.多糖誘導体が、セルロース誘導体またはアミロース誘導体である2に記載の光学異性体分離用充填剤
4.多糖誘導体が、セルローストリスまたはアミロースの3,5−ジクロロフェニルカルバメート誘導体、2,4−ジクロロフェニルカルバメート誘導体、3,4−ジクロロフェニルカルバメート誘導体、2,5−ジクロロフェニルカルバメート誘導体、4−フルオロフェニルカルバメート、4−ブロモフェニルカルバメート誘導体、4−ヨードフェニルカルバメート誘導体、のいずれかである3に記載の光学異性体分離用充填剤
5.充填剤の質量に対する多糖誘導体の質量(担持率)が、5〜35%である1〜4のいずれかに記載の光学異性体分離用充填剤
セルローストリス(3,5−ジクロロフェニルカルバメート)を、既知の方法(例えば、[特許文献3](特開昭61−233633号公報)の合成例1に記載された方法において、3,4‐ジクロロフェニルイソシアナートの代わりに3,5‐ジクロロフェニルイソシアナートを用いる方法)に従い作製し、その3.0gを30mLのテトラヒドロフラン(THF)に溶解した。かかるセルローストリス(3,5‐ジクロロフェニルカルバメート)のTHF溶液を、表面をアミノシラン処理したシリカゲル([特許文献4](特表平11−510193の実施例1)で使用されているものと同じもの)15gに均一に塗布し、その後、THFを留去した。
塩化リチウムとN,N−ジメチルアセトアミド溶液150mLにセルロース、5.0g(30.8mmol)溶解させ、これにピリジン、75mL、3,5−ジクロロフェニルイソシアネート、14.4g(76.6mmol)を加え80℃で6時間の反応させた後、3−イソシアナートプロピルトリエトキシシラン、0.61g(2.5mmol)を加え、さらに16時間反応させた後、3,5−ジクロロフェニルイソシアネート、14.5g(76.6mmol)を加え、さらに7時間反応させた。ピリジン可溶部をメタノール中に滴下し、不溶部として回収した後、真空乾燥を行い部分的にアルコキシシリル基が導入されたセルロース誘導体を得た。1H NMRの結果から、3,5−ジクロロフェニルイソシアネートとアルコキシシリル基の導入率がそれぞれ、98.2%、1.8%であった。
実施例1と同様の手法で作製したセルローストリス(3,5−ジクロロフェニルカルバメート)の、1.0gを8.0mLのテトラヒドロフラン(THF)に溶解した。かかるセルローストリス(3,5‐ジクロロフェニルカルバメート)のTHF溶液を、表面をアミノシラン処理したシリカゲル、10gに均一に塗布し、その後、THFを留去した。
セルロースを担体に化学結合させた物質10gを、[特許文献5](特開平07−138301号公報)の実施例1(段落0071〜0075)に記載された方法を参考に合成した。但し、このときのセルロース仕込み量を、特許文献記載量よりも2倍多くし、セルロースが担体に化学結合した物質を得た。得られたセルロース結合シリカゲル5gを、N,N−ジメチルアセトアミド、ピリジン混合溶剤中に懸濁させ、これに3,5‐ジクロロフェニルイソシアネート15gを添加し、80℃で48時間の反応を行った。懸濁液をろ過し、メタノールで洗浄して多糖誘導体が担体と化学的に結合した光学異性体分離用充填剤を得た。得られた充填剤をTHFで洗浄した後の塩素含有率を表1に示す。
実施例2の方法で得たアルコキシシリル基が導入されたセルロースカルバメート誘導体、1.0gを7.0mLのテトラヒドロフラン(THF)に溶解した。かかるアルコキシシリル基導入セルローストリス(3,5‐ジクロロフェニルカルバメート)のTHF溶液を、表面をアミノシラン処理したシリカゲル([特許文献4](特表平11−510193の実施例1)で使用されているものと同じもの)9.0gに均一に塗布し、その後、THFを留去した。
塩化リチウムとN,N−ジメチルアセトアミド溶液100mLにセルロース、5.0g(30.8mmol)溶解させ、これにピリジン、53mL、3,5−ジクロロフェニルイソシアネート、17.8g(86.4mmol)を加え80℃で6時間の反応させた後、3−イソシアナートプロピルトリエトキシシラン、0.96g(3.9mmol)を加え、さらに16時間反応させた後、3,5−ジクロロフェニルイソシアネート、13.2g(64.2mmol)を加え、さらに7時間反応させた。ピリジン可溶部をメタノール中に滴下し、不溶部として回収した後、真空乾燥を行い部分的にアルコキシシリル基が導入されたセルロースカルバメート誘導体を得た。
実施例1及び2で作製した光学異性体分離用充填剤を直径0.46mm、長さ25cmのステンレス製カラムにスラリー法により充填し、液体クロマトグラフィー(HPLC)装置により、下記に示すラセミ体(化合物A及び化合物B)の分析試験を行った。結果を表2に示す。また、応用例におけるそれぞれのクロマトグラムを図1〜図6に示す。なお、HPLCでの分析条件は、移動相:ヘキサン/2−プロパノール=90/10(v/v)、流速:1.0ml/min、カラム温度:25℃、検出波長:254nm、である。
k2‘=(t2−t0)/t0 (2)
α=k2’/k1’、 (3)
但し、W1、W2はそれぞれ第一、第二ピークのベースライン上でのピーク幅を示す。
Claims (5)
- 多糖誘導体が担体上で担体と化学的に結合されてなる光学異性体分離用充填剤であって、充填剤中のハロゲン含有率が3.0%〜5.0%であることを特徴とする光学異性体分離用充填剤
- 多糖誘導体が、セルロース誘導体またはアミロース誘導体である請求項2に記載の光学異性体分離用充填剤
- 多糖誘導体が、セルローストリスまたはアミロースの3,5−ジクロロフェニルカルバメート誘導体、2,4−ジクロロフェニルカルバメート誘導体、3,4−ジクロロフェニルカルバメート誘導体、2,5−ジクロロフェニルカルバメート誘導体、4−フルオロフェニルカルバメート、4−ブロモフェニルカルバメート誘導体、4−ヨードフェニルカルバメート誘導体、のいずれかである請求項3に記載の光学異性体分離用充填剤
- 光学異性体分離用充填剤の質量に対する多糖誘導体の質量(担持率)が、5〜35%である請求項1〜4のいずれかに記載の光学異性体分離用充填剤
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CN102173721B (zh) * | 2011-01-25 | 2012-11-21 | 浙江大学宁波理工学院 | 垃圾焚烧飞灰固结剂及垃圾焚烧飞灰的固结方法 |
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US9233355B2 (en) | 2012-05-23 | 2016-01-12 | Daicel Corporation | Separating agent |
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US20180085734A1 (en) * | 2016-09-23 | 2018-03-29 | Daicel Corporation | Separating agent for optical isomers |
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