CN105254682A - 一种平面手性二茂铁化合物、合成方法及用途 - Google Patents
一种平面手性二茂铁化合物、合成方法及用途 Download PDFInfo
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Abstract
本发明涉及一种平面手性二茂铁化合物、合成方法及应用。该平面手性二茂铁化合物具有如下结构式:或,或者或
Description
技术领域
本发明涉及一种平面手性二茂铁化合物、合成方法及应用。该方法可以以胺甲基取代的二茂铁,取代杂环芳烃为原料,手性氨基酸和钯为催化剂,高效率、高选择性(高对映选择性,高区域选择性)地合成这类平面手性二茂铁化合物。这类平面手性二茂铁化合物能方便转化为手性配体,并可以应用于一些金属催化的不对称反应中。
背景技术
手性联芳基化合物在药物化学,不对称催化和材料化学领域中是非常常见的骨架(Bringmann,G.;Gulder,T.;Gulder,T.A.M.;Breuning,M.Chem.Rev.2011,111,563–639.Brunel,J.M.;Chem.Rev.2005,105,857–897.Murphy,A.R.;Fréchet,J.M.J.Chem.Rev.2007,107,1066–1096.)。构建这类化合物最常用的方法采用不对称偶联反应,但通常需要将两个原料预先管能团化,例如制备成有机硼试剂,有机锌试剂、卤代物等等(Hayashi,T.;Hayashizaki,K.;Kiyoi,T.;Ito,Y.J.Am.Chem.Soc.1988,110,8153–8156.Yin,J.;Buchwald,S.L.J.Am.Chem.Soc.2000,122,12051–12052.)。相比较而言,C-H键的直接不对称芳基化反应是非常简洁的方法,目前这一领域只有少量的报道,而且往往至少一个原料仍然需要预先官能团化(Shi,B.-F.;Maugel,N.;Zhang,Y.-H.;Yu,J.-Q.Angew.Chem.Int.Ed.2008,47,4882–4886.Saget,T.;Cramer,N.Angew.Chem.Int.Ed.2008,52,7865–7868.Gao,D.-W.;Yin,Q.;Gu,Q.;You,S.-L.J.Am.Chem.Soc.2014,136,4841-4844.Deng,R.;Huang,Y.;Ma,X.;Li,G.;Zhu,R.;Wang,B.;Kang,Y.-B.;Gu,Z.J.Am.Chem.Soc.2014,136,4472–4475.)。从原子经济性考虑,双C-H键的不对称芳基化反应无疑是最为简洁的合成路线,这意味着两个反应底物都无需预先官能团化。就目前而言,双C-H键的芳基偶联反应仅仅局限于消旋反应(Lyons,T.W.;Sanford,M.S.Chem.Rev.2010,110,1147–1169.Yeung,C.S.;Dong,V.M.Chem.Rev.2011,111,1215–1292.Li,R.;Jiang,L.;Lu,W.Organometallics2006,25,5973-5975.Stuart,D.R.;Fagnou,K.Science2007,316,1172-1175.Hull,K.L.;Sanford,M.S.J.Am.Chem.Soc.2007,129,11904–11905.Xi,P.;Yang,F.;Qin,S.;Zhao,D.;Lan,J.;Gao,G.;Hu,C.;You,J.J.Am.Chem.Soc.2010,132,1822–1824.Li,B.-J.;Tian,S.-L.;Fang,Z.;Shi,Z.-J.Angew.Chem.Int.Ed.2008,47,1115–1118.)
手性二茂铁在不对称催化,材料科学和生物医学领域都有着广泛和深入的应用,特别对于具有平面手性二茂铁而言,在不对称催化中表现出非常高效的催化活性。因此,化学家们一直以来致力于发展一类高效的方法将平面手性引入二茂铁骨架。到目前为止,最为常用的策略是利用各类手性辅基诱导的非对映邻位金属化。很显然在该方法中,需要在二茂铁中预先引入中心手性。到目前为止,利用不对称催化的方法高效快捷的合成平面手性二茂铁化合物还缺少相应的方法。
鉴于平面手性二茂铁化合物广泛的用途,但又缺乏高效的合成方法。本发明提供了一种高效的合成平面手性二茂铁化合物的方法,利用商业易得的手性氨基酸衍生物作为配体,实现了双C-H键的不对称偶联反应,高效地合成了具有平面手性二茂铁化合物,并且考察了其作为手性配体在一些金属催化的不对称反应中的应用。
发明目的
本发明的目的是提供一类具有平面手性的二茂铁化合物;
本发明的目的还提供一种高效地合成上述具有平面手性二茂铁化合物的方法。
本发明的另一目的是提供了上述平面手性的二茂铁化合物的应用,通过上述平面手性的二茂铁化合物进一步转化获得的手性配体,在二乙基锌对于醛不对称加成反应和烯丙基取代反应中取得了优异的对映选择性和收率。
发明内容
本发明所要解决的技术问题是提供了一种与现有技术完全不同的手性二茂铁衍生物及其制备方法和应用。本发明提供了一种平面手性二茂铁化合物,利用商业易得的手性氨基酸作为配体,发展了双C-H键的不对称偶联反应,高效地合成了平面手性二茂铁化合物,并且该平面手性二茂铁化合物可以用于制备手性配体,该手性配体在不对称催化中有着广泛的应用。
本发明所合成的平面手性二茂铁化合物分子的结构式是:
其中R1a,R1b任意选自H、C1-C16的烷基或C3-C16的环烷基;
Ar为任意选自取代的杂环芳烃,所述的取代的杂环芳烃任意选自取代的苯并呋喃取代的呋喃取代的苯并噻吩取代的噻吩取代的吲哚或取代的吡烙其中R3、R4、R5、R6任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基其中R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;R7任意选自C1-C16的烷基、苄基、对甲苯磺酰基,苯甲酰基、叔丁氧羰基或苄氧羰基;其中R14任意选自CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;
R2任意选自H、CHO、TMS、
本发明的具有平面手性的二茂铁化合物(Rp)-P或(Sp)-P是以氨甲基取代的二茂铁衍生物和杂环芳烃为原料,以手性氨基酸衍生物和钯为催化剂,在碱,苯醌,水和氧化剂的存在下反应制得,可用以下反应式表示:
反应式中,Ar-H表示杂环芳烃,Pd表示钯催化剂,L*表示手性氨基酸,Base表示碱,[O]表示氧化剂,Solvent表示有机溶剂。
所述的氨基烷基取代的二茂铁衍生物、杂环芳烃、手性氨基酸、钯、碱、苯醌、水和氧化剂的摩尔比为1:1.0-3.0:0.01-0.2:0.005-0.1:1.0-5.0:0.1-0.5:1.0-10.0:1-100。推荐反应的氨基烷基取代的二茂铁衍生物、杂环芳烃、手性氨基酸、钯、苯醌、水和碱摩尔比为1:2:0.2:0.1:0.1:4.0:1.0,反应温度为0℃-100℃,推荐反应温度为60℃-80℃。反应时间为6-24小时。
其中氨甲基取代的二茂铁衍生物结构式为R1a,R1b,R2的定义同前所述;
其中取代的杂环芳烃Ar-H任意选自取代的苯丙呋喃取代的呋喃取代的苯并噻吩取代的噻吩取代的吲哚或取代的吡烙R3、R4、R5、R6、R7同前所述;
所述的碱为三乙胺,1,8-二氮杂二环[5,4,0]十一碳-7-烯、1,5-二氮杂二环[4,3,0]壬-5-烯、碳酸铯、碳酸钾、碳酸钠、碳酸氢钾、碳酸氢钠、醋酸钾和磷酸钾。
其中R13任意选自甲氧羰基、烯丙氧羰基、叔丁氧羰基、苄氧羰基、乙酰基、芴甲氧羰基、苄基、苯甲酰基;R14任意选自甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、苄基或取代的芳基,如:其中R8、R9、R10、R11、R12同前所述。
所述的钯为醋酸钯、三氟醋酸钯、氯化钯或二(乙酰丙酮)钯。
所述的氧化剂为空气、氧气、氧化银、醋酸银、碳酸银、磷酸银、醋酸铜、三氟甲磺酸铜;推荐空气作为氧化剂。
本发明提供了一种从简单底物出发,利用商业易得的手性氨基酸作为配体,简洁高效的合成了具有平面手性二茂铁化合物的方法。该方法反应条件温和,原料易得,操作简单,获得了优秀的收率和对映选择性。
本发明还提供了如式(Rp)-II或(Sp)-II所示的平面手性二茂铁化合物,
其中R1a,R1b,R2均如前所述;R15任意选自其中Ar2为取代芳基,R8、R9、R10、R11、R12如前所述。
Ar’为取代的杂环芳烃基,所述的取代的杂环芳烃基任意选自取代的苯并呋喃基取代的呋喃基取代的苯并噻吩基取代的噻吩基取代的吲哚基或取代的吡烙基其中R3、R4、R5、R6任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基其中R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;R7任意选自C1-C16的烷基、苄基、对甲苯磺酰基、苯甲酰基、叔丁氧羰基或苄氧羰基;其中R15任意选自H、CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;
本发明的对于二茂铁化合物(Rp)-II或(Sp)-II的制备方法,是以化合物(Rp)-S或(Sp)-S为原料,溶于乙醚中,在-78℃下加入叔丁基锂,反应0.5~5小时,然后与亲电试剂在室温下反应2-20小时,即可获得化合物(Rp)-II或(Sp)-II。该反应推荐在氩气保护下进行。可用以下反应式表示:
反应式1:
反应式2:
化合物(Rp)-S或(Sp)-S的结构式分别为其中R1a,R1b,R2,Ar'均如前所述;所述的亲电试剂为或TMSCI,其中Ar2如前所述。
本发明合成的手性二茂铁化合物(Rp)-II或(Sp)-II,可以应用于不对称乙基锌对醛的不对称加成反应和烯丙基取代反应,获得了优秀的收率和对映选择性。
具体实施方式
通过下述实施例将有助于理解本发明,但并不限制本发明的内容。
实施例1:部分氨基酸筛选结果
反应式中,Pd(OAc)2表示醋酸钯,ligand表示手性氨基酸配体,mol描述摩尔,K2CO3表示碳酸钾,equiv.表示当量,DMA表示N,N-二甲基乙酰胺,air表示空气,T表示温度。
向干燥的Schlenk反应瓶中加入相应的苯并呋喃2a和DMA(1.5mL),依次再加入氨基酸(0.06mmol),醋酸钯(0.03mmol),碳酸钾(0.45mmol),苯醌(0.03mmol),水(1.2mmol)和二茂铁1a(0.3mmol)。在空气氛围下加热反应。反应结束后,用饱和碳酸氢钠淬灭反应,乙酸乙酯萃取。合并有机相,依次用水和饱和食盐水洗涤,无水硫酸钠干燥,过滤,减压除去溶剂残留物经柱层析分离获得目标产物(Rp)-I-1(乙酸乙酯/石油醚=1/10,v/v,2%Et3N)。
a1.5当量的碳酸钾。b1.5当量的碳酸钾,10mol%苯醌。c1.5当量的碳酸钾,10mol%苯醌,1当量水。d1.5当量的碳酸钾,10mol%苯醌,4当量水。.
实施例2:平面手性二茂铁化合物(Rp)-P或(Sp)-P的不对称合成
反应式1
反应式2
反应式1中,Pd(OAc)2表示醋酸钯,Boc-L-Ile-OH表示(S)-N-叔丁氧基羰基异亮氨酸,mol描述摩尔,equiv.描述当量,K2CO3表示碳酸钾,BQ表示对苯二醌,H2O表示水,DMA表示N,N-二甲基乙酰胺,air表示空气;反应式2中,Boc-D-Ile-OH表示(R)-N-叔丁氧基羰基异亮氨酸。
向干燥的Schlenk反应瓶中加入醋酸钯(6.7mg,0.03mmol),Boc-L-Ile-OH(13.9mg,0.06mmol)或Boc-D-Ile-OH(13.9mg,0.06mmol),碳酸钾(62.2mg,0.45mmol),BQ(3.2mg,0.03mmol),水(21.6mg,1.2mmol)和DMA(1.5mL)。加入相应的二茂铁底物1(0.3mmol)和杂环芳烃2(0.6mmol)。在空气氛围下加热至80℃反应。反应结束后,用饱和碳酸氢钠淬灭反应,乙酸乙酯萃取。合并有机相,依次用水和饱和食盐水洗涤,无水硫酸钠干燥,过滤。减压除去溶剂残留物经柱层析分离获得目标产物I(乙酸乙酯/石油醚=1/15-1/2,v/v,2%Et3N)。
(Rp)-P-1:
反应10小时。红色油状物(76.5mg,71%产率,99%ee).分析数据:[α]D 20=+299.3(c=1.0丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.57-7.52(m,2H),7.30-7.22(m,2H),6.86(s,1H),4.80(s,1H),4.38(s,1H),4.33(s,1H),4.11(s,5H),4.03(AB,JAB=12.8Hz,1H),3.26(BA,JBA=12.8Hz,1H),2.28(s,6H).13CNMR(100MHz,CDCl3)δ156.6,154.5,129.6,123.3,122.7,120.2,110.8,102.1,82.3,75.5,72.7,70.1,68.2,68.1,58.3,45.1.IR(薄膜):2965,2934,2814,2764,1601,1456,1257,811,740,683cm-1.HRMS(ESI)计算值C21H22 56FeNO[M+H]+:360.1045,实测值360.1045.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=18.317min,t(major)=20.623min.
(Sp)-P-1:
反应10小时。红色油状物(77.5mg,72%产率,99%ee).分析数据:[α]D 20=-298.2(c=1.0丙酮,99%ee).手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(major)=18.323min,t(minor)=20.513min.
(Rp)-P-2:
反应10小时。红色油状物(85.6mg,74%产率,98%ee).分析数据:[α]D 20=+402.5(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.56-7.50(m,2H),7.29-7.21(m,2H),6.84(s,1H),4.77(d,J=1.6Hz,1H),4.41(d,J=1.6Hz,1H),4.31(t,J=2.0Hz,1H),4.20(AB,JAB=12.8Hz,1H),4.11(s,5H),3.47(BA,JBA=12.4Hz,1H),2.56(d,J=5.2Hz,4H),1.75(s,4H).13CNMR(100MHz,CDCl3)δ156.7,154.5,129.6,123.2,122.7,120.1,110.8,102.1,83.0,75.1,72.2,70.0,68.1,67.9,54.2,53.7,23.4.IR(薄膜):3095,2938,2855,2814,2765,1574,1455,1020,1006,808,783cm-1.HRMS(ESI)计算值C23H24 56FeNO[M+H]+:386.1202,实测值386.1200.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/三乙胺=98/2/0.5,0.3mL/min,检测波长=230nm,t(minor)=16.240min,t(major)=17.182min.
(Rp)-P-3:
反应13小时。红色油状物(83.4mg,70%产率,98%ee).分析数据:[α]D 20=+435.9(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.54-7.48(m,2H),7.27-7.19(m,2H),6.88(s,1H),4.75(s,1H),4.36(s,1H),4.29(s,1H),4.08(s,5H),3.99(AB,JAB=12.8Hz,1H),3.36(BA,JBA=13.2Hz,1H),2.43-2.36(m,4H),1.54-1.52(m,4H),1.38(s,2H).13CNMR(100MHz,CDCl3)δ156.7,154.5,129.6,123.2,122.6,120.1,110.7,102.3,82.1,75.7,72.8,70.0,68.0,67.9,57.7,53.9,26.0,24.4.IR(薄膜):2987,2969,2901,2883,1261,1066,802cm-1.HRMS(ESI)计算值C24H26 56FeNO[M+H]+:400.1358,实测值400.1359.手性柱DaicelChiralpakAD-H(0.46cmx25cm),正己烷/异丙醇/二乙胺=95/5/0.1,0.7mL/min,检测波长=254nm,t(major)=3.80min,t(minor)=4.29min.
(Rp)-P-4:
反应13小时。红色油状物(79.0mg,68%产率,99%ee).分析数据:[α]D 20=+404.5(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.56-7.50(m,2H),7.30-7.21(m,2H),6.91(s,1H),4.78(t,J=2.0Hz,1H),4.39(t,J=2.4Hz,1H),4.32(t,J=2.4Hz,1H),4.12(s,5H),4.07(AB,JAB=12.8Hz,1H),3.35(BA,JBA=12.8Hz,1H),2.44-2.34(m,2H),2.19(s,3H),1.62-1.49(m,2H),0.94(t,J=7.6Hz,3H).13CNMR(100MHz,CDCl3)δ156.7,154.5,129.6,123.2,122.6,120.1,110.8,102.3,82.7,75.6,72.8,70.1,68.1,68.0,59.5,56.7,41.5,20.5,12.0.IR(薄膜):3095,2959,2934,2784,1603,1456,1257,1105,1001,809,740cm-1.HRMS(ESI)计算值C23H26 56FeNO[M+H]+:388.1358,实测值388.1360.手性柱DaicelChiralpakAD-H(0.46cmx25cm),正己烷/异丙醇/二乙胺=98/2/0.1,0.7mL/min,检测波长=254nm,t(major)=3.90min,t(minor)=4.46min.
(Rp)-P-5:
反应13小时。红色油状物(46.0mg,40%产率,97%ee).分析数据:[α]D 20=+517.7(c=0.1丙酮,97%ee).1HNMR(400MHz,CDCl3)δ9.81(s,1H),7.55-7.53(m,1H),7.49(dd,J=8.0,0.4Hz,1H),7.30-7.26(m,1H),7.24-7.20(m,1H),6.88(s,1H),4.87(dd,J=2.4,2.0Hz,1H),4.70-4.69(m,2H),4.51-4.48(m,2H),4.45(dd,J=2.4,1.6Hz,1H),4.41(t,J=2.8Hz,1H),3.89(AB,JAB=12.8Hz,1H),3.12(BA,JBA=13.2Hz,1H),2.24(s,6H).13CNMR(100MHz,CDCl3)δ193.4,154.6,154.2,129.2,123.9,122.9,120.6,110.8,103.4,83.9,80.4,75.3,75.1,73.8,71.3,71.1,69.4,69.4,57.5,46.1,45.1.IR(薄膜):3104,2941,2858,2816,2766,2713,1680,1455,1243,1171,1021,990,827,741cm-1.HRMS(ESI)计算值C22H22 56FeNO2[M+H]+:388.0994,实测值388.0996.手性柱DaicelChiralpakIA(0.46cmx25cm),正己烷/异丙醇/二乙胺=80/20/0.1,0.7mL/min,检测波长=254nm,t(major)=7.87min,t(minor)=8.89min.
(Rp)-P-6:
反应16小时。红色油状物(91.7mg,73%产率,98%ee).分析数据:[α]D 20=+284.4(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.49(t,J=8.8Hz,2H),7.26-7.17(m,2H),6.78(s,1H),4.80(s,1H),4.45(s,1H),4.32(s,1H),4.08(s,2H),4.02(s,1H),3.95(s,1H),3.79(AB,JAB=13.2Hz,1H),3.43(BA,JBA=13.6Hz,1H),3.25(br,1H),2.32(s,6H),1.43(s,6H).13CNMR(100MHz,CDCl3)δ155.8,154.3,129.3,123.6,122.9,120.2,110.8,102.3,101.6,83.2,75.2,72.2,70.6,70.2,68.5,68.1,67.8,67.3,67.1,58.3,45.7,31.6,31.0.IR(薄膜):3564,3428,2975,2934,2859,2816,2768,1602,1456,1257,1168,831,749cm-1.HRMS(ESI)计算值C24H28 56FeNO2[M+H]+:418.1464,实测值418.1466.手性柱phenomenexcellulose-2(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=6.537min,t(major)=8.615min.
(Rp)-P-7:
反应13小时。泡沫状红色固体(89.3mg,55%产率,99%ee).分析数据:熔点=57.2-60.3℃.[α]D 20=+242.6(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.49(t,J=8.0Hz,2H),7.31(m,12H),6.71(s,1H),4.76(d,J=1.6Hz,1H),4.33(s,1H),4.22(t,J=1.6Hz,1H),4.07(t,J=2.4Hz,1H),4.02(m,3H),3.69(AB,JAB=13.6Hz,1H),3.24(BA,JBA=13.6Hz,1H),2.32(s,6H).13CNMR(100MHz,CDCl3)δ155.6,154.4,147.4,147.3,129.3,127.6,127.5,127.0,126.9,126.8,126.7,123.6,122.9,120.2,110.9,102.5,99.0,77.5,75.6,72.6,72.0,70.9,70.5,69.5,68.5,68.2,57.9,45.7.IR(薄膜):3547,3083,2924,2768,1600,1455,1257,1017,748,699cm-1.HRMS(ESI)计算值C34H32 56FeNO2[M+H]+:542.1777,实测值542.1781.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=37.833min,t(major)=55.466min.
(Rp)-P-8:
反应12小时。红色油状物(106.8mg,82%产率,97%ee).分析数据:[α]D 20=+201.0(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.54-7.48(m,2H),7.28-7.19(m,2H),6.82(s,1H),4.76(s,1H),4.35(s,1H),4.27(t,J=2.8Hz,1H),4.17(dd,J=10.8,0.8Hz,2H),4.06(dt,J=12.0,1.2Hz,2H),4.02(AB,JAB=13.2Hz,1H),3.25(BA,JBA=12.8Hz,1H),2.25(s,6H),0.24(s,9H).13CNMR(100MHz,CDCl3)δ156.4,154.5,129.5,123.3,122.7,120.2,110.7,102.1,81.9,75.4,75.0,74.1,74.0,73.8,73.1,72.9,68.4,68.4,58.2,45.0,-0.2.IR(薄膜):3086,2950,2814,2764,1603,1456,1247,1163,1035,828,740,691cm-1.HRMS(ESI)计算值C24H30 56FeNOSi[M+H]+:432.1441,实测值432.1445.手性柱DiacelChiralcelOD-H(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=9.499min,t(major)=11.385min.
(Rp)-P-9:
反应13小时。泡沫状红色固体(115.8mg,69%产率,99%ee).分析数据:熔点=57.1-60.3℃.[α]D 20=+233.5(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.64-7.63(m,4H),7.47-7.41(m,8H),7.23-7.18(m,2H),6.74(s,1H),4.78(s,1H),4.57(s,1H),4.42-4.33(m,4H),4.23(s,1H),3.94(AB,JAB=12.0Hz,1H),3.19(BA,JBA=11.6Hz,1H),2.20(s,6H).13CNMR(100MHz,CDCl3)δ154.9,154.5,134.6,134.5,133.6,133.4,131.7,131.6,131.5,131.4,131.4,131.2,129.2,128.4,128.3,128.3,128.3,128.2,123.7,122.9,121.0,120.4,110.8,103.1,82.1,77.3,76.9,75.4,75.3,75.3,74.7,74.4,74.4,74.4,74.3,73.9,73.9,73.8,73.8,73.2,70.4,69.7,56.9,44.4.31PNMR(CDCl3161MHz)δ28.1.IR(薄膜):3667,3521,3429,2933,2855,2816,2767,1456,1436,1165,1117,1024,833,748,722,699cm-1.HRMS(ESI)计算值C33H31 56FeNO2P[M+H]+:560.1436,实测值560.1437.手性柱phenomenexcellulose-2(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=4.750min,t(major)=5.127min.
(Rp)-P-10:
反应13小时。红色油状物(73.7mg,66%产率,97%ee).分析数据:[α]D 20=+15.2(c=0.1丙酮,97%ee).1HNMR(400MHz,CDCl3)δ7.38(d,J=8.4Hz,1H),7.33(s,1H),7.08(dd,J=8.0,1.2Hz,1H),6.76(d,J=0.8Hz,1H),4.77(dd,J=2.4,1.6Hz,1H),4.37(d,J=2.4,1.6Hz,1H),4.31(t,J=2.4Hz,1H),4.10(s,5H),4.00(AB,JAB=13.2Hz,1H),3.27(BA,JBA=12.8Hz,1H),2.46(s,3H),2.26(s,6H).13CNMR(100MHz,CDCl3)δ156.6,152.9,132.0,129.7,124.4,120.1,110.2,101.8,82.2,75.6,72.6,70.1,68.1,68.0,58.2,45.1,21.4.IR(薄膜):2937,2856,2814,2764,1600,1455,1264,1198,988,907,797,729cm-1.HRMS(ESI)计算值C22H24 56FeNO[M+H]+:374.1202,实测值374.1199.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/三乙胺=95/5/0.1,0.7mL/min,检测波长=254nm,t(minor)=7.457min,t(major)=8.218min.
(Rp)-P-11:
反应13小时。红色油状物(84.2mg,72%产率,99%ee).分析数据:[α]D 20=+19.5(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.35(d,J=9.2Hz,1H),6.98(d,J=2.8Hz,1H),6.84(dd,J=8.8,2.4Hz,1H),6.75(s,1H),4.74(t,J=1.2Hz,1H),4.34(t,J=2.0Hz,1H),4.29(t,J=2.4Hz,1H),4.07(s,5H),3.97(AB,JAB=12.8Hz,1H),3.84(s,3H),3.22(BA,JBA=12.8Hz,1H),2.23(s,6H).13CNMR(100MHz,CDCl3)δ157.4,155.9,149.5,130.1,111.6,111.1,102.8,102.2,82.2,75.5,72.6,70.0,68.0,68.0,58.2,55.9,45.1.IR(薄膜):3094,2934,2854,2814,2764,1600,1480,1449,1415,1241,1207,1031,991,807,750cm-1.HRMS(ESI)计算值C22H24 56FeNO2[M+H]+:390.1151,实测值390.1149.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/二乙胺=90/10/0.1,0.7mL/min,检测波长=254nm,t(minor)=7.41min,t(major)=8.00min.
(Rp)-P-12:
反应11小时。红色油状物(82.3mg,68%产率,99%ee).分析数据:[α]D 20=+23.0(c=0.1丙酮,99%ee).1HNMR(300MHz,CDCl3)δ7.45-7.41(m,2H),7.16(dd,J=8.4,1.8Hz,1H),6.81(s,1H),4.78(s,1H),4.39(s,1H),4.33(t,J=2.4Hz,1H),4.12(s,5H),4.02(AB,JAB=12.9Hz,1H),3.29(BA,JBA=12.9Hz,1H),3.09-3.00(m,1H),2.27(s,6H),1.36(s,3H),1.34(s,3H).13CNMR(75MHz,CDCl3)δ156.4,152.9,143.2,129.4,122.0,117.2,110.2,102.0,82.0,75.5,72.4,69.9,67.9,67.9,58.0,44.9,34.0,24.5,24.5.IR(薄膜):3095,2957,2858,2813,2765,1456,1263,989,908,806,730cm-1.HRMS(ESI)计算值C24H28 56FeNO[M+H]+:402.1515,实测值402.1513.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=12.247min,t(major)=14.268min.
(Rp)-P-13:
反应13小时。红色油状物(100.2mg,77%产率,99%ee).分析数据:[α]D 20=+16.2(c=0.1Choloroform,99%ee).1HNMR(400MHz,CDCl3)δ7.74(d,J=1.2Hz,1H),7.67-7.65(m,2H),7.56(d,J=8.8Hz,1H),7.51-7.45(m,3H),7.36(t,J=7.2Hz,1H),6.88(s,1H),4.81(t,J=1.6Hz,1H),4.40(t,J=2.4Hz,1H),4.34(t,J=2.4Hz,1H),4.12(s,5H),4.03(AB,JAB=12.8Hz,1H),3.28(BA,JBA=12.8Hz,1H),2.28(s,6H).13CNMR(100MHz,CDCl3)δ157.4,154.2,141.9,136.4,130.1,128.7,127.5,126.8,123.0,118.7,110.8,102.2,82.3,75.3,72.7,70.1,68.2,68.2,58.2,45.1.IR(薄膜):2935,2856,2814,2765,1600,1468,1265,988,811,760,696,629cm-1.HRMS(ESI)计算值C27H26 56FeNO[M+H]+:436.1358,实测值436.1356.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=19.088min,t(major)=25.578min.
(Rp)-P-14:
反应12小时。红色油状物(55.0mg,49%产率,99%ee).分析数据:[α]D 20=+28.3(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.39(dd,J=8.4,3.6Hz,1H),7.17(dd,J=8.8,2.4Hz,1H),6.96(td,J=11.6,2.8Hz,1H),6.80(s,1H),4.77(s,1H),4.38(s,1H),4.33(s,1H),4.09(s,5H),3.99(AB,JAB=13.2Hz,1H),3.23(BA,JBA=12.8Hz,1H),2.25(s,6H).13CNMR(100MHz,CDCl3)δ159.3(d,J=236.0Hz),158.6,150.7,130.4(d,J=10.7Hz),111.1(d,J=9.1Hz),110.6(d,J=26.5Hz),105.6(d,J=25.1Hz),102.1(d,J=3.8Hz),82.3,74.9,72.9,70.1,68.3,68.2,58.2,45.0.19FNMR(376MHz,CDCl3)δ-121.6.IR(薄膜):3096,2936,2856,2815,2765,1600,1475,1447,1184,1128,991,850,810,766cm-1.HRMS(ESI)计算值C21H21F56FeNO[M+H]+:378.0951,实测值378.0949.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=15.717min,t(major)=17.237min.
(Rp)-P-15:
反应12小时。红色油状物(60.0mg,51%产率,99%ee).分析数据:[α]D 20=+25.4(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.48(d,J=2.0Hz,1H),7.39(d,J=8.8Hz,1H),7.20(dd,J=8.8,2.0Hz,1H),6.78(s,1H),4.77(s,1H),4.38(s,1H),4.33(t,J=2.4Hz,1H),4.09(s,5H),3.97(AB,JAB=12.8Hz,1H),3.21(BA,JBA=12.8Hz,1H),2.25(s,6H).13CNMR(100MHz,CDCl3)δ158.4,152.9,131.0,128.2,123.3,119.7,111.6,101.5,82.5,74.7,72.9,70.1,68.3,68.2,58.3,45.1.IR(薄膜):3095,2937,2856,2814,2765,1598,1455,1259,1166,989,799,731,696cm-1.HRMS(ESI)计算值C21H21Cl56FeNO[M+H]+:394.0656,实测值394.0654.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=15.714min,t(major)=17.000min.
(Rp)-P-16:
反应13小时。红色油状物(77.7mg,67%产率,99%ee).分析数据:[α]D 20=+24.1(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.16(s,1H),6.90(s,1H),6.71(s,1H),4.76(t,J=2.0Hz,1H),4.38(t,J=2.0Hz,1H),4.32(t,J=2.4Hz,1H),4.10(s,5H),4.07(AB,JAB=12.8Hz,1H),3.33(BA,JBA=12.8Hz,1H),2.57(s,3H),2.43(s,3H),2.26(s,6H).13CNMR(100MHz,CDCl3)δ156.3,152.0,132.1,129.0,125.6,120.3,117.5,102.0,82.1,75.8,72.4,70.1,68.2,68.0,58.0,45.0,21.3,15.1.IR(薄膜):2923,2853,2809,2765,1120,1105,987,847,815,751cm-1.HRMS(ESI)计算值C23H26 56FeNO[M+H]+:388.1358,实测值388.1356.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=15.222min,t(major)=15.859min.
(Rp)-P-17:
反应18小时。红色油状物(79.8mg,64%产率,98%ee).分析数据:[α]D 20=+23.7(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.40(dd,J=6.8,2.0Hz,1H),7.20-7.14(m,2H),6.80(s,1H),4.78(dd,J=2.0,1.2Hz,1H),4.39(dd,J=2.4,2.0Hz,1H),4.33(t,J=2.8Hz,1H),4.10(s,5H),4.05(AB,JAB=12.8Hz,1H),3.32(BA,JBA=12.4Hz,1H),2.45(s,6H),1.62(s,9H).13CNMR(100MHz,CDCl3)δ155.3,152.7,134.2,130.0,122.6,120.1,118.3,102.1,82.1,75.7,72.5,70.0,68.3,68.0,58.0,45.0,34.3,30.0.IR(薄膜):2954,2868,2813,2764,1407,1168,1019,993,807,744cm-1.HRMS(ESI)计算值C25H30 56FeNO[M+H]+:416.1671,实测值416.1672.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/三乙胺=95/5/0.1,0.7mL/min,检测波长=254nm,t(minor)=5.948min,t(major)=6.273min.
(Rp)-P-18:
反应16小时。红色油状物(67.0mg,57%产率,99%ee).分析数据:[α]D 20=+403.9(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.41(d,J=7.6Hz,1H),7.25(d,J=7.6Hz,1H),7.13(t,J=7.6Hz,1H),6.82(s,1H),4.81(s,1H),4.40(s,1H),4.35(s,1H),4.11-4.07(m,6H),3.25(BA,JBA=12.8Hz,1H),2.27(s,6H).13CNMR(100MHz,CDCl3)δ157.9,150.3,131.1,123.6,123.3,118.6,116.2,102.1,82.6,74.5,72.9,70.2,68.4,68.3,58.2,45.1.IR(薄膜):3093,2931,2855,2815,2766,1603,1414,805,755,732cm-1.HRMS(ESI)计算值C21H21Cl56FeNO[M+H]+:394.0656,实测值394.0663.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=15.207min,t(major)=17.202min.
(Rp)-P-19:
反应13小时。红色油状物(34.7mg,36%产率,95%ee).分析数据:[α]D 20=+300.7(c=0.1丙酮,95%ee).1HNMR(400MHz,CDCl3)δ6.27(d,J=2.8Hz,1H),5.94-5.93(m,1H),4.54(dd,J=2.4,1.6Hz,1H),4.25(t,J=2.4Hz,1H),4.18(t,J=2.4Hz,1H),4.05(s,5H),3.86(AB,JAB=12.8Hz,1H),3.21(BA,JBA=12.8Hz,1H),2.33(s,3H),2.20(s,6H).13CNMR(100MHz,CDCl3)δ151.1,150.5,106.9,106.6,81.0,71.4,69.8,67.2,66.9,58.0,45.0,13.8.IR(薄膜):3094,2962,2777,1601,1456,1257,1106,807,738cm-1.HRMS(ESI)计算值C18H22 56FeNO[M+H]+:324.1045,实测值324.1044.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/二乙胺=95/5/0.1,0.7mL/min,检测波长=254nm,t(minor)=6.22min,t(major)=6.64min.
(Rp)-P-20:
反应12小时。红色油状物(50.3mg,50%产率,97%ee).分析数据:[α]D 20=+276.0(c=0.1丙酮,97%ee).1HNMR(400MHz,CDCl3)δ6.15(s,1H),4.52(t,J=2.0Hz,1H),4.24(t,J=1.6Hz,1H),4.17(t,J=2.4Hz,1H),4.05(s,5H),3.87(AB,JAB=12.8Hz,1H),3.22(BA,JBA=12.8Hz,1H),2.22(s,3H),2.20(s,6H),1.95(s,3H).13CNMR(100MHz,CDCl3)δ149.7,145.8,115.2,109.1,80.7,77.5,71.3,69.8,67.1,66.8,57.9,45.0,11.5,10.0.IR(薄膜):3095,2922,2813,2763,1635,1584,1455,1106,1008,807,624cm-1.HRMS(ESI)计算值C19H24 56FeNO[M+H]+:338.1202,实测值338.1203.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/三乙胺=98/2/0.1,0.5mL/min,检测波长=254nm,t(minor)=13.623min,t(major)=14.432min.
(Rp)-P-21:
反应20小时。红色油状物(66.3mg,63%产率,99%ee).分析数据:[α]D 20=+67.8(c=0.1Chloroform,99%ee).1HNMR(400MHz,CDCl3)δ7.15(d,J=3.6Hz,1H),6.53(d,J=4.0Hz,1H)4.72(s,1H),4.34(s,1H),4.29(s,1H),4.05(s,5H),3.90(AB,JAB=12.8Hz,1H),3.16(BA,JBA=12.8Hz,1H),2.47(s,3H),2.19(s,6H).13CNMR(100MHz,CDCl3)δ185.7,159.4,151.2,119.6,108.1,82.6,73.9,73.0,70.2,68.5,68.2,58.2,45.1,25.9.IR(薄膜):3095,2939,2856,2815,2766,1665,1522,1412,1290,1105,1022,1004,810cm-1.HRMS(ESI)计算值C19H22 56FeNO2[M+H]+:352.0994,实测值352.0993.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=95/5,1.0mL/min,检测波长=254nm,t(minor)=33.135min,t(major)=37.690min.
(Rp)-P-22:
反应13小时。红色油状物(83.6mg,76%产率,99%ee).分析数据:[α]D 20=+524.6(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.13(t,J=2.0Hz,1H),6.48(t,J=2.8Hz,1H)4.71(s,1H),4.30(s,1H),4.26(s,1H),4.03(s,5H),3.92(AB,JAB=12.8Hz,1H),3.86(s,3H),3.13(BA,JBA=12.8Hz,1H),2.20(s,6H).13CNMR(100MHz,CDCl3)δ159.2,158.8,142.5,120.0,107.4,82.4,74.2,72.7,70.1,68.3,68.0,58.1,51.6,45.0.IR(薄膜):2928,2855,2816,2766,1713,1537,1304,1136,811,758cm-1.HRMS(ESI)计算值C19H22 56FeNO3[M+H]+:368.0944,实测值368.0944.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=9.219min,t(major)=10.072min.
(Rp)-P-23:
反应10小时。红色油状物(81.7mg,71%产率,99%ee).分析数据:[α]D 20=+743.2(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.72(d,J=7.6Hz,2H),7.41(t,J=7.6Hz,2H),7.26(t,J=7.2Hz,1H),6.65(d,J=3.2Hz,1H),6.48(d,J=3.2Hz,1H),4.66(s,1H),4.32(s,1H),4.26(s,1H),4.08(s,5H),3.99(AB,JAB=12.4Hz,1H),3.31(BA,JBA=12.8Hz,1H),2.23(s,6H).13CNMR(100MHz,CDCl3)δ153.1,152.2,131.1,128.8,126.9,123.3,107.9,106.8,81.2,76.4,71.9,70.0,67.7,67.3,58.0,45.0.IR(薄膜):3092,2929,2765,1596,1552,1456,1105,1020,1000,808,755,690cm-1.HRMS(ESI)计算值C23H24 56FeNO[M+H]+:386.1202,实测值386.1201.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=17.761min,t(major)=20.270min.
(Rp)-P-24:
反应7小时。红色油状物(95.1mg,76%产率,99%ee).分析数据:[α]D 20=+843.3(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.66(d,J=8.8Hz,1H),6.97(d,J=8.8Hz,1H),6.52(d,J=3.2Hz,1H),6.46(d,J=3.2Hz,1H),4.65(d,J=1.2Hz,1H),4.32(t,J=2.0Hz,1H),4.25(t,J=2.4Hz,1H),4.08(s,5H),3.99(AB,JAB=12.4Hz,1H),3.85(s,3H),3.31(BA,JBA=12.4Hz,1H),2.23(s,6H).13CNMR(100MHz,CDCl3)δ158.8,152.3,152.4,124.8,124.3,114.3,107.9,105.1,81.1,76.7,71.8,70.0,67.6,67.2,58.0,55.4,45.0.IR(薄膜):3094,2940,2814,2765,1499,1247,1174,1022,829,755,614cm-1.HRMS(ESI)计算值C24H26 56FeNO2[M+H]+:416.1307,实测值416.1310.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=27.633min,t(major)=32.892min.
(Rp)-P-25:
反应6小时。红色油状物(105.7mg,82%产率,99%ee).分析数据:[α]D 20=+999.1(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ8.01(d,J=8.0Hz,1H),7.76(d,J=8.0Hz,1H),6.80(d,J=3.2Hz,1H),6.52(d,J=3.2Hz,1H),4.69(s,1H),4.38(s,1H),4.30(s,1H),4.09(s,5H),4.02(AB,JAB=13.2Hz,1H),3.36(BA,JBA=12.8Hz,1H),2.62(s,3H),2.25(s,6H).13CNMR(100MHz,CDCl3)δ197.3,154.9,151.0,135.0,135.0,129.2,123.0,109.6,108.4,80.9,75.7,72.3,70.1,68.1,67.6,57.9,44.8,26.6.IR(薄膜):2935,2814,2766,1677,1596,1567,1262,1020,808,751cm-1.HRMS(ESI)计算值C25H26 56FeNO2[M+H]+:428.1307,实测值428.1310.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=19.804min,t(major)=23.457min.
(Rp)-P-26:
反应16小时。红色油状物(58.7mg,58%产率,97%ee).分析数据:[α]D 20=+411.5(c=0.1丙酮,97%ee).1HNMR(400MHz,CDCl3)δ6.98(d,J=3.2Hz,1H),6.58-6.57(m,1H),4.44(m,1H),4.27(t,J=1.2Hz,1H),4.18(t,J=2.4Hz,1H),4.06(s,5H),3.79(AB,JAB=12.8Hz,1H),3.17(BA,JBA=13.2Hz,1H),2.45(s,3H),2.19(s,6H).13CNMR(100MHz,CDCl3)δ139.6,138.1,125.3,125.1,82.0,81.5,71.4,70.3,69.3,67.0,57.9,45.0,15.3.IR(薄膜):3093,2938,2854,2812,2763,1728,1454,1016,1001,806cm-1.HRMS(ESI)计算值C18H22 56FeNS[M+H]+:340.0817,实测值340.0818.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=13.233min,t(major)=14.720min.
(Rp)-P-27:
反应18小时。红色油状物(67.8mg,64%产率,98%ee).分析数据:[α]D 20=+926.8(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ9.85(s,1H),7.60(d,J=4.0Hz,1H),7.39(d,J=3.6Hz,1H),4.65(dd,J=2.4,1.6Hz,1H),4.39(dd,J=2.8,1.6Hz,1H),4.34(t,J=2.4Hz,1H),4.07(s,5H),3.85(AB,JAB=12.8Hz,1H),3.12(BA,JBA=12.8Hz,1H),2.22(s,6H).13CNMR(100MHz,CDCl3)δ182.7,155.2,141.3,137.4,126.1,83.1,78.4,73.3,71.0,70.6,68.5,58.2,45.0.IR(薄膜):3092,2936,2855,2814,2767,1658,1477,1410,1229,807,669cm-1.HRMS(ESI)计算值C18H20 56FeNOS[M+H]+:354.0610,实测值354.0611.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=16.449min,t(major)=20.152min.
(Rp)-P-28:
反应16小时。暗红色固体(66.6mg,60%产率,97%ee).分析数据:熔点=94.6-97.0℃.[α]D 20=+719.1(c=0.1丙酮,97%ee).1HNMR(400MHz,CDCl3)δ7.50(d,J=4.0Hz,1H),7.27(d,J=3.6Hz,1H),4.59(s,1H),4.34(s,1H),4.29(t,J=2.4Hz,1H),4.05(s,5H),3.81(AB,JAB=12.4Hz,1H),3.10(BA,JBA=13.2Hz,1H),2.52(s,3H),2.19(s,6H).13CNMR(100MHz,CDCl3)δ190.6,153.3,141.8,133.2,126.0,82.9,78.9,72.9,70.8,70.3,68.1,58.1,45.0,26.4.IR(薄膜):2924,2853,2760,1640,1472,1409,1290,1277,998,827,813cm-1.HRMS(ESI)计算值C19H22 56FeNOS[M+H]+:368.0766,实测值368.0770.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=15.572min,t(major)=18.872min.
(Rp)-P-29:
反应24小时。暗红色固体(85.5mg,74%产率,99%ee).分析数据:熔点=69.3-70.5℃.[α]D 20=+713.3(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.63(d,J=3.6Hz,1H),7.25(d,J=3.6Hz,1H),4.58(s,1H),4.34(s,1H),4.28(s,1H),4.06(s,5H),3.88(s,3H),3.81(AB,JAB=12.8Hz,1H),3.13(BA,JBA=12.8Hz,1H),2.20(s,6H).13CNMR(100MHz,CDCl3)δ162.9,151.1,133.9,130.6,125.8,82.8,79.1,72.6,70.8,70.2,68.0,58.0,52.1,45.0.IR(薄膜):3095,2948,2931,2815,2763,1703,1482,1285,1259,1095,812,750cm-1.HRMS(ESI)计算值C19H22 56FeNO2S[M+H]+:384.0715,实测值384.0716.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=7.668min,t(major)=8.808min.
(Rp)-P-30:
反应10小时。红色油状物(103.2mg,86%产率,98%ee).Analyticaldatafor3zd:[α]D 20=+848.2(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.66-7.64(m,2H),7.42-7.38(m,2H),7.28(t,J=7.2Hz,1H),7.24(d,J=4.0Hz,1H),7.18(d,J=3.6Hz,1H),4.56(t,J=2.4Hz,1H),4.33(t,J=2.4Hz,1H),4.26(t,J=2.8Hz,1H),4.11(s,5H),3.88(AB,JAB=13.2Hz,1H),3.19(BA,JBA=13.2Hz,1H),2.25(s,6H).13CNMR(100MHz,CDCl3)δ142.2,142.2,134.6,128.9,127.1,126.4,125.4,123.1,82.4,80.8,71.9,70.5,69.5,67.4,58.1,45.1.IR(薄膜):2938,2850,2812,2764,1446,1293,1104,1028,1013,1000,819,754,693cm-1.HRMS(ESI)计算值C23H24 56FeNS[M+H]+:402.0973,实测值402.0974.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=16.523min,t(major)=20.618min.
(Rp)-P-31:
反应17小时。红色油状物(52.2mg,44%产率,98%ee).分析数据:[α]D 20=+181.8(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.62-7.59(m,3H),7.40(t,J=7.2Hz,2H),7.34(d,J=1.2Hz,1H),7.28(t,J=7.6Hz,1H),7.18(d,J=3.6Hz,1H),4.55(s,1H),4.32(s,1H),4.24(s,1H),4.10(s,5H),3.87(AB,JAB=12.8Hz,1H),3.19(BA,JBA=13.2Hz,1H),2.24(s,6H).13CNMR(100MHz,CDCl3)δ143.1,141.9,136.0,128.8,127.0,126.2,124.7,118.7,82.4,80.9,71.8,70.5,69.6,67.3,58.0,45.0.IR(薄膜):3093,2928,2852,2813,2766,1601,1509,1453,1260,1106,1017,819,731,693cm-1.HRMS(ESI)计算值C23H24 56FeNS[M+H]+:402.0973,实测值402.0976.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇/二乙胺=95/5/0.1,0.7mL/min,检测波长=254nm,t(minor)=7.11min,t(major)=7.67min.
(Rp)-P-32:
反应19小时。红色固体(95.7mg,76%产率,97%ee).分析数据:熔点=89.2-91.6℃.[α]D 20=+727.1(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.55(d,J=8.4Hz,2H),7.19(d,J=2.8Hz,1H),7.04(d,J=2.8Hz,1H),6.92(d,J=8.4Hz,2H),4.53(s,1H),4.30(s,1H),4.23(s,1H),4.09(s,5H),3.87-3.83(m,4H),3.17(d,J=12.8Hz,1H),2.23(s,6H).13CNMR(100MHz,CDCl3)δ158.9,142.2,141.0,127.5,126.7,126.3,122.0,114.3,82.4,81.0,71.8,70.5,69.4,67.2,58.1,55.4,45.1.IR(薄膜):2936,2812,2765,1517,1247,1178,1035,818,759cm-1.HRMS(ESI)计算值C24H26 56FeNOS[M+H]+:432.1079,实测值432.1081.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=99/1,1.0mL/min,检测波长=254nm,t(minor)=8.912min,t(major)=10.982min.
(Rp)-P-33:
反应12小时。红色油状物(103.0mg,80%产率,97%ee).分析数据:[α]D 20=+879.1(c=0.1丙酮,97%ee).1HNMR(400MHz,CDCl3)δ7.59-7.56(m,2H),7.21(d,J=4.0Hz,1H),7.10-7.06(m,3H),4.54(d,J=1.6Hz,1H),4.32(d,J=1.2Hz,1H),4.25(t,J=2.4Hz,1H),4.10(s,5H),3.86(AB,JAB=13.2Hz,1H),3.19(BA,JBA=12.4Hz,1H),2.23(s,6H).13CNMR(100MHz,CDCl3)δ162.1(d,J=246.0Hz),142.1,141.1,130.9,127.0(d,J=8.3Hz),126.4,123.0,115.8(d,J=22Hz),82.3,80.7,71.9,70.5,69.5,67.4,58.0,45.0.19FNMR(376MHz,CDCl3)δ115.1.IR(薄膜):2962,2813,2768,1516,1260,1224,1014,798cm-1.HRMS(ESI)计算值C24H26 56FeNOS[M+H]+:432.1079,实测值432.1081.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(minor)=14.987min,t(major)=20.073min.
(Rp)-P-34:
反应6小时。红色固体(99.0mg,76%产率,99%ee).分析数据:熔点=125.0-126.6℃.[α]D 20=+759.6(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ7.55(d,J=7.6Hz,2H),7.36(d,J=7.2Hz,2H),7.24(s,1H),7.15(s,1H),4.56(s,1H),4.34(s,1H),4.26(s,1H),4.10(s,5H),3.87(AB,JAB=12.8Hz,1H),3.18(BA,JBA=12.8Hz,1H),2.25(s,6H).13CNMR(100MHz,CDCl3)δ142.8,140.8,133.1,132.7,129.0,126.6,126.4,123.5,82.5,80.5,72.0,70.6,69.6,67.4,58.1,45.1.IR(薄膜):2934,2853,2767,1504,1456,1294,1091,1011,812cm-1.HRMS(ESI)计算值C23H23Cl56FeNS[M+H]+:436.0584,实测值436.0585.手性柱phenomenexcellulose-2(25cm),正己烷/异丙醇=99/1,1.0mL/min,检测波长=254nm,t(minor)=5.695min,t(major)=7.387min.
(Rp)-P-35:
反应20小时。红色固体(80.2mg,76%产率,99%ee).分析数据:熔点=99.3-102.5℃.[α]D 20=+704.3(c=0.1丙酮,99%ee).1HNMR(400MHz,CDCl3)δ9.47(s,1H),6.93(d,J=4.0Hz,1H),6.53(d,J=4.0Hz,1H),4.42(s,1H),4.35(d,J=2.4Hz,2H),4.16(s,5H),3.82(s,3H),3.41(AB,JAB=12.8Hz,1H),3.34(BA,JBA=12.8Hz,1H),1.98(s,6H).13CNMR(100MHz,CDCl3)δ178.8,140.7,132.5,124.0,113.2,84.3,77.3,71.2,70.2,69.7,68.1,56.7,44.5,33.7.IR(薄膜):2961,2925,2854,2772,1643,1499,1352,1260,1022,816cm-1.HRMS(ESI)计算值C19H23 56FeN2O[M+H]+:351.1154,实测值351.1155.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=21.526min,t(major)=30.728min.
(Rp)-P-36:
反应17小时。红色油状物(114.0mg,82%产率,98%ee).分析数据:[α]D 20=+358.4(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ6.97(d,J=3.6Hz,2H),6.41(d,J=3.6Hz,1H),4.40(s,1H),4.31(s,2H),4.13(s,5H),3.74(s,3H),3.37(s,2H),2.41(s,3H),1.95(s,6H).13CNMR(100MHz,CDCl3)δ187.9,138.6,131.3,119.2,111.7,83.9,78.2,70.8,70.1,70.0,67.9,56.5,44.3,34.5,27.2.IR(薄膜):3096,2936,2854,2814,2766,1643,1493,1370,1001,941,819,771,644cm-1.HRMS(ESI)计算值C20H25 56FeN2O[M+H]+:365.1311,实测值365.1312.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=18.701min,t(major)=26.449min.
(Rp)-P-37:
反应12小时。红色油状物(54.0mg,47%产率,98%ee).分析数据:[α]D 20=+222.9(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ6.99(d,J=4.0Hz,1H),6.41(d,J=4.0Hz,1H),4.40(s,1H),4.33-4.31(m,2H),4.15(s,5H),3.80(s,3H),3.73(s,3H),3.37(s,2H),1.96(s,6H).13CNMR(100MHz,CDCl3)δ161.7,137.0,122.6,117.0,111.6,84.0,78.8,70.6,70.1,70.1,67.8,56.5,51.0,44.4,33.7.IR(薄膜):3093,2947,2814,2765,1700,1496,1251,1235,1106,1020,803,754cm-1.HRMS(ESI)计算值C20H25 56FeN2O2[M+H]+:381.1260,实测值381.1260.手性柱phenomenexcellulose-4(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(minor)=9.790min,t(major)=10.889min.
(Rp)-P-38:
反应20小时。红色油状物(60.0mg,48%产率,95%ee).分析数据:[α]D 20=+574.3(c=0.1丙酮,95%ee).1HNMR(400MHz,CDCl3)δ7.60(d,J=15.6Hz,1H),6.71(d,J=4.0Hz,1H),6.48(d,J=4.0Hz,1H),6.15(d,J=15.6Hz,1H),4.39(t,J=1.6Hz,1H),4.30(d,J=2.0Hz,2H),4.23(q,J=7.2Hz,2H),4.15(s,5H),3.53(s,3H),3.40(AB,JAB=13.2Hz,1H),3.33(BA,JBA=13.2Hz,1H),1.98(s,6H),1.32(t,J=7.2Hz,3H).13CNMR(100MHz,CDCl3)δ168.0,134.8,132.7,130.0,112.9,111.6,111.3,83.8,79.2,70.7,70.1,70.0,67.6,60.0,56.7,44.5,31.6,14.4.IR(薄膜):3096,2976,2939,2814,2766,1696,1613,1151,1037,811,753cm-1.HRMS(ESI)计算值C23H29 56FeN2O2[M+H]+:421.1573,实测值421.1575.手性柱phenomenexcellulose-2(25cm),正己烷/异丙醇=90/10,0.4mL/min,检测波长=230nm,t(major)=36.873min,t(minor)=43.023min.
(Rp)-P-39:
反应18小时。红色油状物(62.5mg,51%产率,98%ee).分析数据:[α]D 20=-55.1(c=0.1丙酮,98%ee).1HNMR(400MHz,CDCl3)δ7.60(d,J=0.8Hz,1H),7.19-7.13(m,2H),6.73(s,1H),4.47(s,1H),4.39(s,1H),4.37(d,J=2.4Hz,1H),4.20(s,5H),3.62(s,3H),3.50(AB,JAB=13.2Hz,1H),3.39(BA,JBA=12.8Hz,1H),2.00(s,6H).13CNMR(100MHz,CDCl3)δ138.3,136.1,128.6,125.2,121.2,119.4,110.1,103.4,84.3,78.8,70.8,70.2,70.0,67.9,56.7,44.6,30.6.IR(薄膜):3096,2967,2815,2767,1470,1106,818,790,753cm-1.HRMS(ESI)计算值C22H24Cl56FeN2[M+H]+:421.1573,实测值421.1575.手性柱DaicelChiralcelOD-H(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(major)=18.994min,t(minor)=27.125min.
实施例3:(Rp)-II或(Sp)-II的合成
反应式1
反应式2
t-BuLi表示叔丁基锂,EX表示二苯甲酮或二苯基膦氯或三甲基氯硅烷或二苯二硫醚,Et2O表示乙醚。
氩气保护下,在干燥的三口烧瓶中加入(Rp)-S-1或(Sp)-S-1(1equiv.)和干燥乙醚(0.06mol/L),冷却至-78℃,加入tBuLi(1.5equiv.).反应在-78℃继续搅拌5小时。然后向反应体系中滴加入亲电试剂的乙醚溶液(2.0equiv.0.2mol/L)。反应恢复至室温,搅拌过夜,反应2-20小时。反应混合物加入冰水萃灭反应,乙酸乙酯萃取。有机相使用饱和食盐水洗涤,无水硫酸钠干燥,过滤。减压旋除溶剂,柱层析纯化(ethylacetate/petroleum=1/20,v/v),得产物II.
(Rp)-II-1:
红色固体(349.5mg,54%产率).分析数据:熔点=164.5-166.0℃.[α]D 20=+260.9(c=0.1丙酮).1HNMR(400MHz,CDCl3)δ9.11(br,1H),7.60(d,J=8.0Hz,2H),7.53(d,J=7.6Hz,1H),7.48(d,J=8.4Hz,1H),7.35(d,J=7.6Hz,2H),7.28-7.24(m,5H),7.20(t,J=7.2Hz,2H),7.14(t,J=7.2Hz,1H),6.70(s,1H),4.67(d,J=2.4Hz,1H),4.02(s,5H),4.00(d,J=2.4Hz,1H),3.87(AB,JAB=13.6Hz,1H),3.15(BA,JBA=13.6Hz,1H),2.10(s,6H).13CNMR(100MHz,CDCl3)δ156.1,154.5,149.6,147.2,129.1,127.5,127.5,127.5,127.2,126.5,126.5,123.6,122.9,120.2,110.9,103.3,98.5,80.9,77.5,75.6,71.6,71.3,66.6,56.1,44.5.IR(薄膜):3054,2925,2854,2822,2777,1556,1256,980,746,700cm-1.HRMS(ESI)计算值C34H32 56FeNO2[M+H]+:542.1777,实测值542.1783.
(Sp)-II-2:HRMS(ESI)计算值C34H32 56FeNO2[M+H]+:542.1777,实测值542.1784.
(Rp)-II-3:
红色固体(416.0mg,64%产率).分析数据:熔点=68.9-71.0℃.[α]D 20=+111.8(c=0.1丙酮).1HNMR(400MHz,CDCl3)δ7.64(d,J=1.2Hz,2H),7.57(d,J=7.2Hz,1H),7.52(d,J=8.0Hz,1H),7.41(s,3H),7.34-7.21(m,7H),7.06(s,1H),5.04(d,J=2.0Hz,1H),4.19(d,J=2.4Hz,1H),3.98(d,J=12.4Hz,1H),3.92-3.91(m,1H),3.89(s,5H),2.05(s,6H).13CNMR(100MHz,CDCl3)δ155.2(d,J=129.4Hz),139.8(d,J=8.2Hz),138.2(d,J=9.0Hz),135.3(d,J=21.6Hz),132.6(d,J=18.6Hz),129.4(d,J=43.1Hz),128.1(d,J=8.2Hz),127.8(d,J=6.7Hz),127.7,123.1(d,J=75.9Hz),120.4,106.9(d,J=769Hz),88.9(d,J=26.7Hz),79.6(d,J=11.1Hz),78.9(d,J=4.4Hz),72.1(d,J=4.5Hz),71.3,70.0,56.6(d,J=12.4Hz),44.9.31PNMR(161MHz,CDCl3)δ-25.5.IR(薄膜):3055,2925,2853,2822,2776,1456,1255,1174,746,699cm-1.HRMS(ESI)计算值C33H31 56FeNOP[M+H]+:544.1491,实测值544.1487.
(Rp)-II-4:
红色油状物(340mg,66%产率).分析数据:[α]D 20=+304.1(c=0.1丙酮).1HNMR(400MHz,CDCl3)δ7.62-7.56(m,2H),7.34-7.26(m,2H),6.95(s,1H),4.98(d,J=2.4Hz,1H),4.30(d,J=2.0Hz,1H),4.13(s,5H),3.77(d,J=12.4Hz,1H),3.60(d,J=12.4Hz,1H),2.24(s,6H),0.41(s,9H).13CNMR(100MHz,CDCl3)δ156.7,154.5,129.6,123.4,122.7,120.3,110.8,102.8,88.4,78.8,75.1,74.7,70.6,70.5,57.4,44.9,0.7.IR(薄膜):3092,3067,2950,2815,2765,1457,1255,1003,834,749,689cm-1.HRMS(ESI)计算值C24H30 56FeNOSi[M+H]+:432.1441,实测值432.1443.
(Rp)-II-5:
红色油状物(325.3mg,58%产率).分析数据:[α]D 20=+431.2(c=0.1丙酮).1HNMR(400MHz,CDCl3)δ7.63-7.58(m,2H),7.34-7.28(m,6H),7.15(s,2H),5.12(s,1H),4.81(s,1H),4.21(s,5H),4.04(AB,JAB=12.0Hz,1H),3.70(BA,JBA=12.4Hz,1H),2.15(s,9H).13CNMR(100MHz,CDCl3)δ155.4,154.7,139.7,129.6,128.7,126.4,125.2,123.7,122.9,120.6,110.9,103.4,85.4,79.3,77.8,76.4,71.9,69.1,55.9,45.2.IR(薄膜):3059,2963,2936,2857,2817,2769,1583,1477,1456,1257,1023,820,736,690cm-1.HRMS(ESI)计算值C27H26 56FeNOS[M+H]+:468.1079,实测值468.1094.
(Rp)-II-6:
HRMS(ESI)计算值C46H41 56FeNO3P[M+H]+:741.2095,实测值741.2096.
(Rp)-II-7:
HRMS(ESI)计算值C40H36 56FeNO2[M+H]+:617.2017,实测值617.2015.
(Rp)-II-8:
HRMS(ESI)计算值C36H36 56FeNO2[M+H]+:569.2017,实测值569.2014.
(Rp)-II-9:
HRMS(ESI)计算值C31H32 56FeNO2[M+H]+:505.1704,实测值505.1701.
(Rp)-II-10:
HRMS(ESI)计算值C34H32 56FeNOS[M+H]+:557.1476,实测值557.1478.
(Rp)-II-11:
HRMS(ESI)计算值C40H36 56FeNOS[M+H]+:633.1789,实测值633.1783.
(Rp)-II-12:
HRMS(ESI)计算值C31H32 56FeNOS[M+H]+:521.1476,实测值521.1471.
(Rp)-II-13:
HRMS(ESI)计算值C32H35 56FeN2O[M+H]+:518.2021,实测值518.2019.
(Rp)-II-14:
HRMS(ESI)计算值C35H33Cl56FeN2O[M+H]+:588.1631,实测值588.1633.
实施例4.二乙基锌和醛的不对称加成反应
氩气保护下,在干燥的三口烧瓶中加入取代苯甲醛3(1.1mmol,1equiv.)和催化剂(Rp)-II-1(29.8mg,0.055mmol,5mol%),甲苯(1.5mL)。在0℃下,加入二乙基锌(4.4mmol,4.0equiv.).在该温度下,当反应至苯甲醛消失时,(反应混合物使用1当量盐酸淬灭,二氯甲烷萃取。有机相使用饱和食盐水洗涤,无水硫酸钠干燥,过滤。减压旋除溶剂,柱层析纯化(ethylacetate/petroleum=1/5,v/v),得到目标产物5.
无色油状物(134.8mg,90%产率,86%ee).[α]D 20=-50.1(c=1.0氯仿).1HNMR(400MHz,CDCl3)δ7.39-7.27(m,5H),4.60(t,J=6.3Hz,1H),1.98(br,1H),1.86-1.71(m,2H),0.92(t,J=7.5Hz,3H).手性柱DaicelChiralcelOJ-H(25cm),正己烷/异丙醇=40/1,0.41mL/min,检测波长=254nm,t(major)=34.164min,t(minor)=38.242min.
无色油状物(174.5mg,86%产率,87%ee).[α]D 20=-52.6(c=1.0氯仿).1HNMR(400MHz,CDCl3)δ8.11(d,J=8.4Hz,1H),7.90(d,J=5.1Hz,1H),7.79(d,J=8.1Hz,1H),7.63(d,J=6.9Hz,1H),7.53-7.45(m,3H),5.37(br,1H),2.41(br,1H),2.07-1.87(m,2H),1.03(t,J=6.9Hz,3H).手性柱DaicelChiralcelOD-H(25cm),正己烷/异丙醇=90/10,1.0mL/min,检测波长=254nm,t(major)=7.621min,t(minor)=13.329min.
实施例5.钯催化不对称烯丙基化反应
配体(Rp)-II-2(10.1mg,0.02mmol)和[Pd(C3H5)Cl]2(3.7mg,0.01mmol)溶于干燥的THF(2mL)中,室温搅拌半小时。加入化合物6(100.9mg,0.4mmol),再搅拌10分钟后,加入丙二酸二甲酯(0.08mL,0.8mmol)、BSA(0.8mmol)和CH2Cl2溶剂(2mL),在20℃下反应至原料消失,饱和氯化铵溶液淬灭反应,乙醚萃取。合并有机相,用食盐水洗涤,无水硫酸钠干燥,过滤。减压旋除溶剂,残余物经柱层析(乙酸乙酯/石油醚=10/1)分离纯化得到126mg化合物7(98%产率,98%ee)。
分析数据7:1HNMR(400MHz,CDCl3)δ3.51(s,3H),3.70(s,3H),3.96(d,J=11.2Hz,1H),4.27(dd,J=8.8,10.4Hz,1H),6.33(dd,J=8.8,15.8Hz,1H),6.48(d,J=16.0Hz,1H),7.17-7.33(m,10H);手性柱DiacelChiralcelOD-H(25cm),正己烷/异丙醇=90/10,0.7mL/min,检测波长=254nm,t(minor)=8.11min,t(major)=8.70min.产物5的绝对构型确定为S构型。
实施例6钯催化氨甲基二茂铁与呋喃硼酸偶联反应(对比反应)
向干燥的Schlenk反应瓶中加入醋酸钯(6.7mg,0.03mmol),Boc-L-Ile-OH(13.9mg,0.06mmol),碳酸钾(62.2mg,0.45mmol),BQ(3.2mg,0.03mmol),水(21.6mg,1.2mmol)和DMA(1.5mL)。加入相应的二茂铁底物1a(0.3mmol)和2-苯并呋喃硼酸(0.6mmol)。在空气氛围下加热至80℃反应20小时,没有目标产物生成。
本发明所用的部分氨基酸结构:
Claims (10)
1.一种平面手性二茂铁化合物,其特征是具有如下结构式的光学纯化合物:
其中,R1a,R1b选自H、C1-C16的烷基或C3-C16的环烷基;
Ar为取代的杂环芳烃基,所述的取代的杂环芳烃基任意选自取代的苯并呋喃基取代的呋喃基取代的苯并噻吩基取代的噻吩基取代的吲哚基或取代的吡烙基其中R3、R4、R5、R6任意选自H、F、Cl、Br、I、CF3、CHO、
Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基其中R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;R7任意选自C1-C16的烷基、苄基、对甲苯磺酰基、苯甲酰基、叔丁氧羰基或苄氧羰基;其中R14任意选自CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;
R2选自H、CHO、三甲基硅基TMS、
(Rp)-P或(Sp)-P不包含下列任一结构的化合物:
2.如权利要求1所述的平面手性二茂铁化合物,其特征在于,所述的如式(Rp)-
P或(Sp)-P所示的平面手性二茂铁化合物为如下所述的任一化合物:
。
3.一种如权利要求1所述的平面手性二茂铁杂化合物的合成方法,其特征是在0℃至100℃和有机溶剂中,以氨甲基取代的二茂铁衍生物和杂环芳烃为原料,以手性氨基酸和钯为催化剂,在碱、对苯二醌、水和氧化剂的存在下,发生不对称双碳氢键芳基化反应,反应6-24小时获得具有平面手性的二茂铁化合物;所述的氨甲基取代的二茂铁衍生物、杂环芳烃、手性氨基酸、钯、碱、对苯二醌、水和氧化剂的摩尔比为1:1.0-3.0:0.01-0.2:0.005-0.1:1.0-5.0:0.1-0.5:1.0-10.0:1-100;
所述的氨甲基取代的二茂铁衍生物结构式为R1a和R1b的定义如权利要求1所述;
所述的取代的杂环芳烃选自取代的苯丙呋喃取代的呋喃取代的苯并噻吩取代的噻吩取代的吲哚或取代的吡烙其中R3、R4、R5、R6、R7、R14如权利要求1所述;
所述的碱为三乙胺,1,8-二氮杂二环[5,4,0]十一碳-7-烯、1,5-二氮杂二环[4,3,0]壬-5-烯、碳酸铯、碳酸钾、碳酸钠、碳酸氢钾、碳酸氢钠、醋酸钾或磷酸钾;
所述的手性氨基酸化合物是具有如下结构的R或者S构型的光学纯化合物:其中R13选自甲氧羰基、烯丙氧羰基、叔丁氧羰基、苄氧羰基、乙酰基、芴甲氧羰基、苄基或苯甲酰基;R14选自C1-C16的烷基、异丙基、异丁基、叔丁基、苄基或取代的芳基其中R8、R9、R10、R11、R12如权利要求1中所述;*表示为R或者S构型;
所述的钯为醋酸钯、三氟醋酸钯、氯化钯或二(乙酰丙酮)钯;
所述的氧化剂为空气、氧气、氧化银、醋酸银、碳酸银、磷酸银、醋酸铜或三氟甲磺酸铜。
4.如权利要求3所述的平面手性二茂铁化合物的合成方法,其特征是反应的氨基烷基取代的二茂铁衍生物、杂环芳烃、手性氨基酸、钯、苯醌、水和碱摩尔比为1:2:0.2:0.1:0.1:4.0:1.0;反应温度为60℃-80℃;空气作为氧化剂。5如权利要求3所述的平面手性二茂铁化合物的合成方法,其特征是所述有机溶剂是苯、四氯化碳、石油醚、四氢呋喃、N-甲基吡咯烷酮,二甲基亚砜、N,N-二甲基甲酰胺、N,N-二甲基乙酰胺、乙醚、二氯甲烷、三氯甲烷、甲苯、二甲苯、环己烷、正己烷、正庚烷、二氧六环或乙腈。
5.如权利要求3所述的平面手性二茂铁化合物的合成方法,其特征是所得产物经过重结晶、薄层层析、柱层析或减压蒸馏分离纯化。
6.一种平面手性二茂铁化合物,其具有如下结构式(Rp)-II或(Sp)-II的化合物:
其中R1a,R1b,R2均如权利要求1所述;R15选自 其中Ar2为R8、R9、R10、R11或R12取代的苯基, R8、R9、R10、R11、R12如权利1所述。
Ar’为取代的杂环芳烃基,所述的取代的杂环芳烃基任意选自取代的苯并呋喃基取代的呋喃基取代的苯并噻吩基取代的噻吩基取代的吲哚基或取代的吡烙基其中R3、R4、R5、R6任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基其中R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基;R7任意选自C1-C16的烷基、苄基、对甲苯磺酰基、苯甲酰基、叔丁氧羰基或苄氧羰基;其中R15任意选自H、CF3、CHO、Ac、COOMe、C1-C16的烷氧基、C1-C16的烷基或取代的苯基R8、R9、R10、R11、R12任意选自H、F、Cl、Br、I、CF3、CHO、Ac、COOMe、C1-C16的烷氧基或C1-C16的烷基。
7.如权利要求6所述的平面手性二茂铁化合物,其特征在于,所述的如式(Rp)-
II或(Sp)-II所示的平面手性二茂铁化合物为如下所述的任一化合物:
。
8.一种如权利要求6所述的平面手性二茂铁化合物的制备方法,其特征将化合物(Rp)-S或(Sp)-S溶于乙醚中,在-78℃下加入叔丁基锂反应0.5~5小时,然后与亲电试剂在室温下反应2-20小时,获得化合物(Rp)-II或(Sp)-II化合物;所述的亲电试剂为Ar2S-SAr2或TMSCI,其中Ar2如权利要求6中所述;
所述的化合物(Rp)-S或(Sp)-S的结构式分别为其中R1a,R1b,R2,Ar'如权利要求6所述。
所述的化合物(Rp)-S或(Sp)-S、叔丁基锂、亲电试剂的摩尔比为1:1.0-3.0:1.0-3.0。
9.如权利要求6所述的平面手性二茂铁化合物的制备方法,其特征所述的方法是在氩气保护下进行反应。
10.一种如权利要求6所述的平面手性二茂铁化合物的用途,其特征是用作手性配体,作为不对称乙基锌对醛的不对称加成反应和烯丙基取代反应中的催化剂。
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