JP6708806B2 - 電気応答技術 - Google Patents
電気応答技術 Download PDFInfo
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- JP6708806B2 JP6708806B2 JP2016530182A JP2016530182A JP6708806B2 JP 6708806 B2 JP6708806 B2 JP 6708806B2 JP 2016530182 A JP2016530182 A JP 2016530182A JP 2016530182 A JP2016530182 A JP 2016530182A JP 6708806 B2 JP6708806 B2 JP 6708806B2
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- Prior art keywords
- arene
- vinylbenzyl
- hydroxycalix
- polymer
- calix
- Prior art date
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- 238000000034 method Methods 0.000 claims description 7
- -1 4-vinylbenzyl Chemical group 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
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- CLECMSNCZUMKLM-UHFFFAOYSA-N (4-ethenylphenyl)methanol Chemical compound OCC1=CC=C(C=C)C=C1 CLECMSNCZUMKLM-UHFFFAOYSA-N 0.000 claims description 4
- VTPQLJUADNBKRM-UHFFFAOYSA-N 1-(bromomethyl)-4-ethenylbenzene Chemical compound BrCC1=CC=C(C=C)C=C1 VTPQLJUADNBKRM-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
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- 239000003795 chemical substances by application Substances 0.000 claims 2
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/16—Preparation of halogenated hydrocarbons by replacement by halogens of hydroxyl groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
- C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
- C07C29/147—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of carboxylic acids or derivatives thereof
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- C07C43/02—Ethers
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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Description
本発明は、一部、授与番号DMR−1121107の下で米国国立科学基金からの政府支援を受けて行われた。米国政府は、本発明における一定の権利を保持し得る。
)。D.S.グオ(S.Guo)、S.チェン(S.Chen)、H.キアン(H.Qian)、H.Q.ザング(H.Q.Zhang)、Y.ルイ(H.Q.Zhang)、ケミカル・コミュニケーション(Chem.Commun.)46(2010年)2620−2622には、動的結合がビス−p−スルホナトカリックス[4]アレーンと電気応答性ビス−ビオロゲンとの間の超分子相互作用である主鎖型超分子ポリマーについて報告されている。このビオロゲンは、それが酸化された状態ではカリックスアレーン部分に結合するが、その中性に還元された状態の負に荷電したカリックスアレーンとは強くは相互作用しない。
AIBN:アゾビス−イソブチロニトリル
ATRP:原子移動ラジカル重合
CV:サイクリック・ボルタンメトリー
DCE:ジクロロエテン
FTIR:変換赤外分光分析
GPC:ゲル浸透クロマトグラフィー
IR:赤外線
ITC:等温滴定型熱量測定
LC/MS:液体結合質量分析
MP:ピーク分子量
MV:メチルビオロゲン
NMR:核磁気共鳴
PDI:多分散指数
P(VBC4A):ポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[4]アレーン
P(VBSC4A):ポリ(p−スルホ,25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[4]アレーン)
THF:テトラヒドロフラン
TMS:テトラメチルシラン
UV:紫外線
XPS:X線光電子分光法
4−ビニル安息香酸(500mg、3.37ミリモル)のEt2O(25mL)溶液をLiAlH4(758mg、19.97ミリモル)の0℃THF(80mL)スラリーに滴下した(K.S.ブルームほか(K.S.Bloome,et al.)、ヨウ化アルキルのパラジウム触媒ヘック型反応(Palladium−catalyzed Heck−type reactions of alkyl iodides)、ジャーナル・オブ・アメリカン・ケミカル・ソサエティ(J Am Chem Soc)133(2011)20146−20148、2011年)。反応混液を室温まで加温し、1時間攪拌した。反応は以下の後処理によって停止させた:即ち、256μLの水をゆっくりと加えた後、10wt%のNaOH溶液512μL次いで水768μLを加えた。この混液を白色固体が形成されるまで激しく攪拌した。この粗反応混液を濾過し、上清を(無水Na2SO4で)乾燥し、減圧濃縮した。得られた油をヘキサン:EtOAc(4:1)の溶離液を用いるシリカゲルカラムクロマトグラフィーにより精製して(図2に示した)アルコール1(280mg、62%)を無色の油として得た。
O.シモムラほか(O.Shimomura,et al.)、有機合成用ポリテトラヒドロフラン−グラフ卜化ポリスチレン(PS−PTHF)樹脂担体の合成及び応用、テトラヘドロン(Tetrahedron)61(2005年)12160−12167から適応させた反応スキームを用いて、エチルエーテル(10ml)に溶かした三塩化リン(PBr3)(18.4g、6.4ml、68ミリモル)をN2下0℃で4−ビニルベンジルアルコール(5.9g、44.3ミリモル)のEt2O(500ml)に加えた。1時間後、さらにPBr3(18.4g、6.4ml、68ミリモル)を加えた。この反応混液を室温で1時間攪拌し、次いで0℃に冷却した。水(100ml)をゆっくりと加えた。この溶液をEt2Oで抽出し、このEt2O層をNaHCO3水溶液、塩水で洗浄し、MgSO4で乾燥した。この粗生成物をヘキサン:EtOAc(70:30)溶離系を用いるシリカゲルカラムクロマトグラフィーで精製して生成物臭化ビニルベンジルを得た。1H NMR(CDCl3,500MHz)δ:4.48(s,2H),5.26(d,1H)5.76(d,1H)6.69−6.75(q,1H)7.32(d,2H)7.41(d,2H).UV−vis[クロロホルム、λmax(ε)]:215,260。
カリックス[4]アレーン(1g、2.36ミリモル)及びカリウム3級ブトキシド(528mg、4.71ミリモル)を無水アセトニトリル(10ml)にN2下65℃で攪拌して溶解させた。1時間後、臭化4−ビニルベンジル(460mg、2.35ミリモル)を添加し、この混液を48時間還流させた。この反応混液を減圧濃縮した。得られた固体をDCMに溶かし、1M HCl、Dl水、塩水で洗浄し、無水Na2SO4上で乾燥させた。この粗生成物をヘキサン:EtOAc(90:10)を用いるシリカゲルカラムクロマトグラフィーで精製してモノマーVBC4Aを白色結晶固体として得た(収率20%)。1H NMR(CDCl3,500MHz)δ:3.27−3.32(dd,J=10.0,5.0Hz,4H,Ar−CH2−Ar),4.09(d,J=15.0Hz,2H,Ar−CH2−Ar),4.22(d,J=10.0Hz,2H,Ar−CH2−Ar),5.02(s,2H,−O−CH2),5.13(d,J=15.0Hz,1H),5.66(d,J=15.0Hz,1H),6.51−6.55(dd,J=5.0,10Hz,3H,Ar−H),6.59−6.65(dd,J=15.0,5.0Hz,1H,C−H)6.74(t,J=5.0Hz,1H,Ar−H),6.83−6.87(dd,J=10.0,5.0Hz,4H,Ar−H),6.90(d,J=10.0Hz,2H,Ar−H),6.95(d,J=10.0Hz,2H,Ar−H),7.41(d,J=5.0Hz,2H,Ar−H),7.55(d,J=10.0Hz,2H,Ar−H),9.12(s,2H,Ar−OH),9.45(s,1H,Ar−OH);13C NMR(CDCl3,TMS,125MHz)δ:32.11(Ar−CH2−Ar),79.18(O−CH2),114.9(=CH2),121.14−138.49(Ar),136.6(−CH),149.36(Ar−OH),151.46(Ar−O−);UV−Vis[DCM,λmax(ε)]:230及び254nm;ESI/APCI−MS:m/z 540.1[M+H]。
モノマーVBC4A(1g、1.85ミリモル)及びアゾビスイソブチロニトリル(AIBN)(6.07mg、0.037ミリモル)を10mLのTHFに溶解し、48時間N2下60℃で攪拌した。この反応混液をシリカゲルフラッシュカラムにより精製し、MeOHで再結晶させて白色非晶質白色粉末のP(VBC4A)を70%の収率で得た。1H NMR(CDCl3,500MHz)δ:1.26−1.85(ブロード2H+1H,−CH2−CH−Ar−),3.00−3.60(ブロード4H,Ar−CH2−Ar),3.85−4.45(ブロード4H,Ar−CH2−Ar),4.65−5.20(ブロード2H,−O−CH2−),6.25−7.80(ブロード,16H,Ar−H),9.10−9.85(ブロード,3H,Ar−OH);13C NMR(CDCl3,TMS,125MHz)δ:31.80(Ar−CH2−Ar),40.35(−CH2−C−Ar−),79.10(OCH2),120.93−130.35(Ar),134.35(−CH−Ar−),149.07(Ar−OH),151.14(Ar−O−);UV−vis[DCM,λmax(ε)]:230,276。
無水酢酸(1.77mL、18.74ミリモル)を−10℃でDCE(10mL)に添加することによってアセチル硫酸を新しく調製した。5分後、95%硫酸(1mL、18.77ミリモル)を10℃でこのDCE溶液に加え、攪拌し、室温で平衡させた。次いで、アセチル硫酸(3.57ml、新たに調製)を−10℃でポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシ‐カリックス[4]アレーン(P(VBC4A))のDCE(50mL)に添加(1:6モル比、ポリマー:アセチル硫酸)し、4時間攪拌した。この反応混液を濾過し、残渣をMeOHに溶かした。このMeOH溶液を水酸化ナトリウム溶液(10%水溶液)で洗浄して過剰の硫酸を中和し、次いで2日間かけて透析(MW2,000未満カットオフ膜)し、乾燥するまで凍結乾燥した。紫色の乾燥非晶質粉末を10%の収率で得た。1H NMR(D2O,500MHz)δ:1.10−2.50(ブロード3H,−CH2−CH−Ar−),3.25−3.64(ブロード4H,Ar−CH2−Ar),3.65−4.03(ブロード4H,Ar−CH2−Ar),4.20−4.46(ブロード,2H,−O−CH2−),6.74−7.89(ブロード,16H,Ar−H);13C NMR(CD3OH,TMS,125MHz)δ:21.03−22.01(Ar−CH2−Ar),31.33(Ar−CH2−Ar),32.99(Ar−CH2−Ar),38.42(−CH2−C−Ar−),64.33(O−CH2),124.97−130.49(Ar),135.08(−CH−Ar−),148−152(Ar−O(H));UV−vis[DCM,λmax(ε)]:210nm。
A.X線光電子分光計(XPS)
単色A1源、エミッション10mAを使用し、1,200eVエネルギーで始めるクラトス・アナリティカル・アクシス(Kratos Analytical Axis)超光電子分光計を用いてXPSを実施した。分析チャンバ中の圧は1×10−8トルとした。スペクトルはeV単位の結合エネルギーの関数として得た。データ処理にはカサ(Casa)XPSソフトウェアを使用した。(図6参照)。
HPベクトラワークステーション(Vectra Workstation)搭載のヒューレットパッカード(Hewlett−Packard)型式8453UV−Vis分光光度計を用いて吸収スペクトルを測定した。蛍光スペクトルは、周囲温度でパーキンエルマー(Perkin Elmer)LS55蛍光分光光度計を用いて測定した。吸光度及び発光スペクトルのいずれにおいても、試料はPBS(0.1M、pH7)で調製し、測定は路長1cmの石英セル中で行った。(図7参照)。
P(VBSC4A)におけるMVの包接のための生成定数及び熱力学的パラメータはマイクロカル(MicroCal)iTC200装置を用いる滴定型熱量測定法により測定した。溶液は全てリン酸緩衝食塩液(0.1M、pH7)を用いて調製した。試料セルにはP(VBSC4A)の溶液(250μM)を入れた。MVの2.00mM溶液を一連の20回の注入(各3μL)で加えていくと、熱の上昇が記録された。ITC実験は30℃で実施した。データはオリジン(ORIGIN)ソフトウェア(マイクロカル)を用いて解析し、当てはめた。(図10参照、(A)ポリマー溶液(250μM)中へMV溶液(2.00mM)を20回順次注入した場合の生ITCデータ。(B)熱量微量測定値の積分から得られた見掛けの反応熱。熱量微量測定値の積分から得られた累積反応熱が注入数の関数として表示されている。実線は、独立した試験の実験データへの最小二乗適合である。X2/DoF=5,297;N=0.298±0.008サイト)。
Claims (5)
- ポリ(p−スルホ,25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)であって、Xが4、6、8又は10であるもの、またはXが4であるものとする、ポリマー。
- ポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)であって、Xが4、6、8又は10から選ばれるもの、またはXが4であるものとする、ポリマー。
- 請求項1に記載のポリ(p−スルホ,25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)を調製する方法であって、
a)4−ビニル安息香酸を4−ビニルベンジルアルコールに還元する工程、
b)4−ビニルベンジルアルコールを臭素と混合して臭化4−ビニルベンジルを形成させる工程、
c)臭化4−ビニルベンジルをカリックス[X]アレーンと混合して25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーンを得る工程、
d)25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーンとアゾビスイソブチロニトリルとを混合してポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)を得る工程、および
e)ポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)にスルホン化化合物を添加し、Xが4、6、8又は10であるものとする工程を含む方法、または
a)25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーンとアゾビスイソブチロニトリルとを混合してポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)を得る工程、および
b)ポリ(25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[X]アレーン)にスルホン化剤である硫酸(Sulfonating agent sulfate)を添加し、Xが4、6、8又は10であるものとする工程を含む方法。 - 25−(4−ビニルベンジル)−26,27,28−ヒドロキシカリックス[4]アレーン。
- 電気化学的に応答する方法であって、ゲスト分子を可逆的に結合させるための、請求項1又は2に記載のポリマーを使用することを含む方法。
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