CN110317220A - 一种双手性中心环丙基硅烷化合物及其制备方法和应用 - Google Patents

一种双手性中心环丙基硅烷化合物及其制备方法和应用 Download PDF

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CN110317220A
CN110317220A CN201910339867.2A CN201910339867A CN110317220A CN 110317220 A CN110317220 A CN 110317220A CN 201910339867 A CN201910339867 A CN 201910339867A CN 110317220 A CN110317220 A CN 110317220A
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徐利文
赵志远
杨雪敏
郭彬
徐征
曹建
尹官武
郑战江
叶飞
杨科芳
崔玉明
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Abstract

本发明涉及手性有机硅烷领域,具体公开了一种如式(I)所示的双手性中心环丙基硅烷化合物及其制备方法,包括:将式(II)所示的环丙烯与二苯基硅烷通过不对称氢化硅烷化反应高效合成了高产率、高对映选择性的双手性中心环丙基硅烷化合物。与传统的[2+1]环加成和1,3‑环化取代环丙基氨基等反应相比是合成环烷化合物更为直接有效的方法,并且可获得传统方法无法制备的多种不同取代基的环丙基硅烷化合物,广泛应用于材料化学和药物化学领域。

Description

一种双手性中心环丙基硅烷化合物及其制备方法和应用
技术领域
本发明涉及手性有机硅烷领域,具体涉及一种双手性中心环丙基硅烷化合物及其制备方法和应用。
背景技术
手性有机硅烷逐渐在有机合成、材料科学和药物化学的硅质取代中发挥重要作用,其中,手性含硅有机化合物在有机化学中是非常有用的合成契块;硅基取代的化合物由于其低毒性和有利的代谢特征而在药物化学中受到越来越多的关注;含有硅原子的手性催化剂也广泛用于不对称有机催化中。硅基手性化合物是选择性碳-碳键形成的重要组成部分,烯烃的不对称氢化硅烷化反应为构建手性有机硅烷提供了直接途径。
3,3-二取代环丙基硅烷是高度通用的结构单元,目前已在药物合成中发现了许多重要的应用。与环丙基锂和镁试剂相比,硅类似物性质更稳定,官能团耐受性强,但同时仍具有反应活性,因此3,3-二取代环丙基硅烷成为了有机合成和药物化学中非常重要的合成模块。此外,它们也更容易发生许多立体选择性转化,包括硅烷部分与多种官能团的交换,并且能通过不同的交叉偶联方案将三元碳环单元安装到更为复杂的的化合物支架中。然而,由于难以区分前手性底物中的两个对映体面,3,3-二取代环丙烯的高度选择性氢化硅烷化仍然是一个挑战。
如今,研究者们越来越关注开发针对这些重要构件的有效和选择性的构建方法,研究者们通常通过相应的亲电试剂,[2+1]环加成、迈克尔引发的闭环反应或者卡宾插入等方式获得环丙烷化合物。但是此类方法存在非常大的局限性,对于每种环丙烷,都需要不同的烯烃或卡宾前体,因此非常大的限制了结构多样化。
3,3-二取代环丙烯的高度选择性氢化硅烷化则是一种新兴的、更直接有效的方法,并能够获得多种不同取代基的环丙基硅烷化合物,此类化合物则是前面提到的环化方法难以获得的。3,3-二取代环丙烯的高度选择性氢化硅烷化直接在过渡金属的催化下将硅烷部分加成到易于获得和高反应性的环丙烯的双键上。
发明内容
本发明的目的在于提供了一种双手性中心环丙基硅烷化合物,此硅烷化合物包含具有较大环张力的环丙烷骨架结构,合成中以活性较低的非末端烯烃为原料,包含了具有高选择性的两个手性中心,两个手性中心中还包括一个手性非常难控制的远程季碳手性中心。
本发明的另一目的在于提供了上述双手性中心环丙基硅烷化合物的制备方法,该反应条件温和、方法简单,可一步获得多种不同取代基的高产率、高对映选择性和非对映选择性的双手性中心环丙基硅烷化合物。
本发明是通过以下技术方案实现的:
一种双手性中心环丙基硅烷化合物,结构如式(I)所示:
式中,*代表手性碳原子,取代基R1为氢、单取代或多取代的卤原子、烷基、卤代烷基、烷氧基或频哪醇硼酸酯;取代基R2为未被取代或被苯基取代的烷基。
进一步地,所述的取代基R1为氢、单取代或多取代的卤原子、C1~C4烷基、C1~C4卤代烷基、C1~C4烷氧基或频哪醇硼酸酯;取代基R2为未被取代或被苯基取代的C1~C6烷基。
其中,“C1~C4烷基”是指直链或支链的具有1~4个碳原子的烷基;“卤代烷基”是指氢原子被卤原子取代的烷基;“被苯基取代的C1~C6烷基”是指直链或支链上的氢被苯基取代的具有1~6个碳原子的烷基;“卤原子”是指氟原子、氯原子、溴原子、碘原子和砹原子。
本发明以活性较低的非末端烯烃为原料,合成了具有较大环张力的环丙烷骨架结构的硅烷化合物,该化合物同时具有高选择性的两个手性中心,其中包含一个非常难于控制的远程季碳手性中心,此种同时具有高对应选择性和非对映选择性的环丙基硅烷化合物为首次合成。
上述双手性中心环丙基硅烷化合物的制备方法,包括:在膦配体、铑催化剂、添加剂和反应介质存在的条件下,将式(II)所示的环丙烯与二苯基硅烷通过不对称氢化硅烷化反应合成双手性中心环丙基硅烷化合物,反应式如下所示:
式(II)中R1和R2的定义与式(I)中相同。
所述制备方法的具体包括如下步骤:在惰性气体氛围下,将膦配体、铑催化剂、添加剂和反应介质预搅拌20~60min后,依次加入式(II)所示的环丙烯和二苯基硅烷,在10~40℃条件下反应10~40h得到双手性中心环丙基硅烷化合物。
本发明以环丙烯类化合物与二苯基硅烷作为反应物,以金属催化剂铑盐与膦配体形成的络合物为催化剂前体,催化剂前体参与到催化循环体系中,催化效率较高,通过添加剂用来控制产物的立体构型,可得到极高对映选择性的目标产物,经分子间的氢化硅烷化反应高效合成了双手性中心环丙基硅烷化合物。
作为优选,所述反应温度为30~40℃,反应时间为20~40h,这是由于实验表明反应体系在反应温度30~40℃、反应时间20~40h时,反应较为完全,因此产率较高。
作为优选,所述的铑催化剂为二(1,5-环辛二烯)四氟硼酸铑(I),实验表明,当二(1,5-环辛二烯)四氟硼酸铑(I)作为催化剂时,反应结果较好,副产物较少。
所述的膦配体为下式L1~L5所示的化合物中的任意一种:
所述膦配体优选为式L2所示的化合物,这是由于以式L2所示的金属催化剂与膦配体形成的络合物作为催化剂前体,催化效率好,可得到高产率目标产物。
所述的添加剂为四(3,5-二(三氟甲基)苯基)硼酸钠、四苯基硼酸钠或六氟锑酸银中的任意一种,优选为四(3,5-二(三氟甲基)苯基)硼酸钠。添加剂的使用不仅可以控制产物立体构型,提高目标产物的对映选择性,同时还可以提高产物的产率。
所述的式(II)所示的环丙烯与二苯基硅烷、膦配体、铑催化剂、添加剂的摩尔比为1:(1~1.3):(0.03~0.12):(0.03~0.06):(0.03~0.07)。
所述的反应介质选自正己烷、二氯甲烷、二氯乙烷或乙醚中的任意一种或两种组成的混合物,用量为使溶质充分反应的量。
作为优选,所述反应介质为正己烷,这是由于以正己烷为溶剂时,产物的产率最高。
本发明还公开了上述双手性中心环丙基硅烷化合物在有机合成、材料科学和手性药物合成中的应用。
与现有技术相比,本发明具有以下有益效果:
(1)本发明合成方法新颖,在较低温度下搅拌即可完成反应,反应条件温和、操作简单、底物普适性强,粗产品经过快速柱层析除杂后减压浓缩可得纯品,后处理方便,最终得到的产物产率和对映选择性均很高,可作为手性合成前体广泛用于各种有机反应及药物合成中,具有可观的应用价值;
(2)本发明与传统的[2+1]环加成和1,3-环化取代环丙基氨基等反应相比是合成环烷化合物更为直接有效的方法,并且可获得传统方法无法制备的多种含有双手性中心不同取代基的环丙烷化合物,例如如下式所示的衍生物可广泛应用于材料化学和药物化学领域;
附图说明
图1为实施例2制得的双手性中心环丙基硅烷化合物的核磁氢谱图;
图2为实施例2制得的双手性中心环丙基硅烷化合物的核磁碳谱图;
图3为实施例27制得的双手性中心环丙基硅烷化合物的核磁氢谱图;
图4为实施例27制得的双手性中心环丙基硅烷化合物的核磁碳谱图;
图5为实施例28制得的双手性中心环丙基硅烷化合物的核磁氢谱图;
图6为实施例28制得的双手性中心环丙基硅烷化合物的核磁碳谱图;
图7为实施例29制得的双手性中心环丙基硅烷化合物的核磁氢谱图;
图8为实施例29制得的双手性中心环丙基硅烷化合物的核磁碳谱图。
具体实施方式
下面结合实施例对本发明作进一步详细说明,实施例中所用原料均可市购或采用常规方法制备。
实施例1:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅20min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到50mg淡黄色油状液体产物1c,产率为70%,92%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.対映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,92%ee,93:7dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74min.
实施例2:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,98%ee,97:3dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.対映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇==99:1,0.6mL/min,254纳米,98%ee,97:3dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例3:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅60min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到50mg淡黄色油状液体产物1c,产率为70%,90%ee,90:10dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,90:10dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例4:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.22mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,94%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.対映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,94%ee,93:7dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例5:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.24mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,95%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.対映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,95%ee,93:7dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例6:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(7.1mg,0.006mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到50mg淡黄色油状液体产物1c,产率为80%,95%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.対映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,95%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例7:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(18.9mg,0.016mmol),金属催化剂[Rh(cod)2]BF4(4.0mg,0.010mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到50mg淡黄色油状液体产物1c,产率为70%,90%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.対映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,93:7dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例8:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(28.3mg,0.024mmol),金属催化剂[Rh(cod)2]BF4(4.8mg,0.012mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到55mg淡黄色油状液体产物1c,产率为77%,93%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,93%ee,93:7dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例9:
在氮气氛围下,向Schlenk反应管中加入膦配体L1(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(4.8mg,0.012mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到55mg淡黄色油状液体产物1c,产率为44%,53%ee,95:%dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,53%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例10:
在氮气氛围下,向Schlenk反应管中加入膦配体L3(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(4.8mg,0.012mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到55mg淡黄色油状液体产物1c,产率为26%,0%ee,68:32dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,0%ee,68:32dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例11:
在氮气氛围下,向Schlenk反应管中加入膦配体L4(2.2mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(4.8mg,0.012mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到24mg淡黄色油状液体产物1c,产率为34%,31%ee,35:65dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,31%ee,35:65dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例12:
在氮气氛围下,向Schlenk反应管中加入膦配体L5(3.8mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(4.8mg,0.012mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到38mg淡黄色油状液体产物1c,产率为54%,20%ee,85:15dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,20%ee,85:15dr dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例13:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(8.8mg,0.010mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,95%ee,97:3dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,95%ee,97:3dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例14:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(12.3mg,0.014mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,90%ee,92:8dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,92:8%dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例15:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四苯基硼酸钠(2.0mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后依次加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到42mg淡黄色油状液体产物1c,产率为58%,92%ee,97:3dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,92%ee,97:3dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例16:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂AgSbF6(2.0mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到42mg淡黄色油状液体产物1c,产率为34%,96%ee,99:1dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,96%ee,99:1dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例17:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在10℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在10℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到5mg淡黄色油状液体产物1c,产率为7%,80%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,80%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例18:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在20℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在20℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到30mg淡黄色油状液体产物1c,产率为42%,85%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,85%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例19:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在40℃下预搅40min后依次加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在40℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到58mg淡黄色油状液体产物1c,产率为80%,90%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例20:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应10h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到40mg淡黄色油状液体产物1c,产率为56%,95%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,95%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例21:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL正己烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应40h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,96%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,96%ee,95:5dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例22:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL二氯甲烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到34mg淡黄色油状液体产物1c,产率为48%,90%ee,96:4dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,96:4dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例23:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL二氯乙烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到21mg淡黄色油状液体产物1c,产率为30%,93%ee,96:4dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,93%ee,96:4dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例24:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL乙醚溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到26mg淡黄色油状液体产物1c,产率为36%,7%ee,94:6dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,7%ee,94:6dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例25:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入1.0mL正己烷和1.0mL二氯甲烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到53mg淡黄色油状液体产物1c,产率为74%,90%ee,97:3dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,97:3dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例26:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入1.0mL正己烷和1.0mL二氯乙烷溶剂,在30℃下预搅40min后加入环丙烯类化合物1a(0.20mmol),搅拌15min后再加入二苯基硅烷(0.26mmol),在30℃下搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到60mg淡黄色油状液体产物1c,产率为84%,90%ee,97:3dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,90%ee,97:3dr);主要对映异构体出峰时间25.58分钟,次要对映异构体出峰时间为27.74分钟。
实施例27:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物2a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物2c,淡黄色油状液体60mg,产率为80%,>99%ee,98:2dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.70(dd,J=6.3,2.9Hz,2H),7.64(dd,J=6.9,2.0Hz,2H),7.41–7.32(m,6H),7.31–7.18(m,2H),7.11–6.95(m,2H),5.03(d,J=4.0Hz,1H),3.32(s,3H),1.90(dd,J=8.8,3.6Hz,1H),1.63(dd,J=10.7,3.5Hz,1H),1.05(ddd,J=10.6,9.0,4.0Hz,1H).13C NMR(101MHz,CDCl3)δ173.36,162.29(d,J=248.3Hz),135.26,135.17,134.47,131.21,131.17,129.56,129.34,129.26,128.04,127.99,127.89,123.90,123.87,115.43(d,J=21.5Hz),52.14,29.43(d,J=1.3Hz),21.39,13.82.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21FNaO2Si:399.1187,测试为:399.1191.对映选择性过量值通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=99.6:0.4,0.6mL/min,254纳米,>99%ee,98:2dr);主要对映异构体出峰时间20.144分钟,次要对映异构体出峰时间为25.439分钟。
实施例28:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物3a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物3c,淡黄色油状液体50mg,产率为66%,99%ee,>99:1dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.68(d,J=4.5Hz,2H),7.61(d,J=6.7Hz,2H),7.38(m,6H),7.24(dt,J=12.8,6.4Hz,1H),7.13(d,J=7.7Hz,1H),7.05(d,J=9.7Hz,1H),6.94(t,J=8.4Hz,1H),4.98(d,J=4.3Hz,1H),3.33(s,3H),1.86(dd,J=8.6,3.3Hz,1H),1.66(dd,J=10.7,3.2Hz,1H),1.08–0.96(m,1H).13C NMR(101MHz,CDCl3)δ173.50,162.46(d,J=245.9Hz),142.90(d,J=7.5Hz),135.13,135.04,134.97,134.36,129.70,129.65,129.63,128.12,128.07,125.71,125.68,117.16(d,J=21.5Hz),114.35(d,J=21.0Hz),52.08,34.33(d,J=1.6Hz),20.98,14.31.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21FNaO2Si:399.1187,测试为:399.1178.对映选择性过量值通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,>99%ee,>99:1dr);主要对映异构体出峰时间11.038分钟,次要对映异构体出峰时间为12.637分钟。
实施例29:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物4a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续下搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物4c,淡黄色油状液体30mg,产率为40%,98%ee,>99:1dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.68(d,J=4.3Hz,2H),7.62(d,J=6.7Hz,2H),7.46–7.26(m,8H),6.97(t,J=8.4Hz,2H),4.97(d,J=4.3Hz,1H),3.33(s,3H),1.86(dd,J=8.5,3.2Hz,1H),1.63(dd,J=10.6,3.0Hz,1H),1.06–0.92(m,1H).13C NMR(101MHz,CDCl3)δ161.93(d,J=246.1Hz),136.38,136.35,135.13,135.03,134.49,131.79,131.71,129.67,129.63,128.09,128.05,115.08(d,J=21.4Hz),52.03,33.90,21.02,14.29.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21FNaO2Si:399.1187,测试为:399.1187.对映选择性过量值通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,98%ee,>99:1dr);主要对映异构体出峰时间11.082分钟,次要对映异构体出峰时间为13.331分钟。
实施例30:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物5a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物5c,淡黄色油状液体70mg,产率为90%,>99%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.70–7.65(m,1H),7.63–7.58(m,1H),7.44–7.32(m,3H),7.29–7.22(m,2H),4.97(d,J=4.4Hz,1H),3.33(s,1H),1.86(dd,J=8.6,3.5Hz,1H),1.63(dd,J=10.8,3.5Hz,1H),0.98(ddd,J=10.5,9.1,4.4Hz,1H).13C NMR(100MHz,CDCl3)δ173.61,139.02,135.11,135.01,134.94,134.39,133.15,131.45,129.67,129.63,128.39,128.08,128.04,52.05,33.99,20.93,14.24.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21ClNaO2Si:415.0892,测试为:415.0881.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,>99ee,95:5dr);主要对映异构体出峰时间13.565分钟。
实施例31:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物6a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物6c,淡黄色油状液体50mg,产率为65%,94%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.60(dd,J=6.4,3.0Hz,2H),7.54(dd,J=7.3,1.8Hz,2H),7.30(ddd,J=19.6,8.8,4.4Hz,7H),7.15(d,J=1.0Hz,3H),4.90(d,J=4.4Hz,1H),3.26(s,3H),1.79(dd,J=8.7,3.6Hz,1H),1.58(dd,J=10.7,3.6Hz,1H),0.94(ddd,J=10.7,8.8,4.4Hz,1H).13C NMR(100MHz,CDCl3)δ173.46,142.42,135.11,135.02,134.90,134.31,133.86,130.24,129.69,129.64,129.46,128.37,128.09,128.04,127.55,52.11,34.28,20.93,14.18.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21ClNaO2Si:415.0892,测试为:415.0881.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,210纳米,94%ee,93:7dr);主要对映异构体出峰时间11.795分钟,次要对映异构体出峰时间为14.742分钟。
实施例32:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物7a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物7c,淡黄色油状液体60mg,产率为76%,93%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.67(d,J=3.1Hz,2H),7.61(d,J=5.4Hz,2H),7.43–7.30(m,6H),7.29–7.20(m,4H),4.99(d,J=4.2Hz,1H),3.30(s,3H),1.86(dd,J=8.5,3.2Hz,1H),1.61(dd,J=10.6,2.9Hz,1H),1.04–0.92(m,1H).13C NMR(101MHz,CDCl3)δ173.66,139.11,135.20,135.11,135.03,134.48,133.21,132.03,131.56,129.78,129.73,128.48,128.19,128.15,52.13,34.07,21.04,14.35.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21ClNaO2Si:415.0811,测试为:415.0890.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱Chiralpark OX柱(正己烷:2-异丙醇=99:1,0.6mL/min,254纳米,93%ee,93:7dr);主要对映异构体出峰时间34.397分钟,次要对映异构体出峰时间为36.340分钟。
实施例33:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物8a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物8c,淡黄色油状液体70mg,产率为80%,99%ee,94:6dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.68(dd,J=6.3,2.9Hz,2H),7.64–7.58(m,2H),7.48(s,1H),7.38(ddd,J=18.9,8.8,3.8Hz,7H),7.28(d,J=7.7Hz,1H),7.16(t,J=7.8Hz,1H),4.97(d,J=4.3Hz,1H),3.33(s,3H),1.86(dd,J=8.7,3.5Hz,1H),1.65(dd,J=10.7,3.5Hz,1H),1.01(ddd,J=10.6,8.8,4.4Hz,1H).13C NMR(100MHz,CDCl3)δ173.45,142.73,135.13,135.04,134.90,134.32,133.13,130.50,129.78,129.72,129.66,128.89,128.12,128.07,122.09,52.13,34.26,20.94,14.22.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H21BrNaO2Si:459.0386,测试为:459.0367.Enantiomeric excess was determinedby HPLC with a Phenomenex chiral INA column(hexanes:2-propanol=99:1,0.6mL/min,254nm,99%ee,94:6dr);major enantiomer tr=12.346min,minor enantiomer tr=15.803min.
实施例34:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物9a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物9c,淡黄色油状液体70mg,产率为80%,96%ee,94:6dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.67(d,J=3.5Hz,2H),7.61(d,J=5.7Hz,2H),7.44–7.31(m,8H),7.24–7.16(m,2H),4.98(d,J=4.2Hz,1H),3.31(s,3H),1.86(dd,J=8.6,3.3Hz,1H),1.62(dd,J=10.7,3.3Hz,1H),1.04–0.91(m,1H).13C NMR(100MHz,CDCl3)δ173.55,139.59,135.16,135.07,134.97,134.42,131.87,131.40,129.74,129.69,128.14,128.11,121.34,52.11,34.11,20.95,14.27.高分辨质谱(ESI)m/z:[M+H]+计算为C23H21BrNaO2Si:459.0386,测试为:459.0370.对映选择性过量值通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,254纳米,96%ee,94:6dr);主要对映异构体出峰时间20.806分钟,次要对映异构体出峰时间为24.203分钟。
实施例35:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物10a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物10c,淡黄色油状液体70mg,产率为82%,95%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.69(dd,J=6.4,3.0Hz,1H),7.65–7.60(m,1H),7.52(t,J=8.7Hz,1H),7.45–7.33(m,4H),5.00(d,J=4.4Hz,1H),3.34(s,1H),1.92(dd,J=8.7,3.7Hz,1H),1.70(dd,J=10.7,3.7Hz,1H),1.02(ddd,J=10.7,8.7,4.4Hz,1H).高分辨质谱(ESI)m/z:[M+Na]+计算为C24H21F3NaO2Si:449.1155,测试为:449.1137.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱Chiralpark OX柱(正己烷:2-异丙醇=99.5:0.5,0.5mL/min,270纳米,95%ee,95:5dr);主要对映异构体出峰时间10.955分钟,次要对映异构体出峰时间为13.189分钟。
实施例36:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物11a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物11c,淡黄色油状液体80mg,产率为94%,96%ee,93:7dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.61(d,J=2.6Hz,2H),7.52(d,J=5.5Hz,2H),7.24(dt,J=13.3,10.8Hz,10H),4.89(d,J=4.2Hz,1H),3.22(s,3H),1.75(dd,J=8.3,2.8Hz,1H),1.61–1.53(m,1H),1.21(s,9H),0.94(td,J=9.6,4.4Hz,1H).13C NMR(100MHz,CDCl3)δ174.28,150.12,137.47,135.37,135.17,135.11,134.71,129.72,129.61,129.57,128.08,128.05,125.21,52.01,34.58,34.19,31.44,20.94,13.97.高分辨质谱(ESI)m/z:[M+Na]+计算为C27H30NaO2Si:437.1907,测试为:437.1905.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,210纳米,96%ee,93:7dr);主要对映异构体出峰时间19.946分钟,次要对映异构体出峰时间为28.551分钟。
实施例37:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物12a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物12c,淡黄色油状液体70mg,产率为82%,97%ee,96:4dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.73–7.66(m,2H),7.62(d,J=7.2Hz,2H),7.44–7.31(m,6H),7.21(t,J=7.9Hz,1H),6.95(d,J=7.6Hz,1H),6.90(s,1H),6.80(d,J=8.2Hz,1H),4.97(d,J=4.4Hz,1H),3.77(s,3H),3.33(s,3H),1.84(dd,J=8.6,3.4Hz,1H),1.66(dd,J=10.6,3.3Hz,1H),1.04(td,J=9.7,4.5Hz,1H).13C NMR(100MHz,CDCl3)δ173.96,159.32,142.00,135.19 135.14,135.08,134.60,129.60,129.58,129.20,128.04,128.03,122.39,116.10,112.58,55.22,52.04,34.65,20.94,14.08.高分辨质谱(ESI)m/z:[M+Na]+计算为C24H24NaO3Si:411.1387,测试为:411.1375.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99.5:0.5,0.6mL/min,210纳米,97%ee,96:4dr);主要对映异构体出峰时间82.564分钟,次要对映异构体出峰时间为92.271分钟。
实施例38:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物13a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物13c,淡黄色油状液体70mg,产率为94%,>99%ee,98:2dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.67(dd,J=7.4,4.7Hz,4H),7.36(dd,J=7.1,5.6Hz,6H),7.30–7.25(m,1H),7.16(dt,J=15.2,6.6Hz,3H),5.02(d,J=3.8Hz,1H),3.37(s,3H),2.25(s,3H),1.91(dd,J=8.6,3.2Hz,1H),1.54(dd,J=10.6,3.1Hz,1H),1.08(td,J=10.7,3.8Hz,1H).13C NMR(100MHz,CDCl3)δ174.09,139.00,138.81,135.27,135.23,134.95,134.85,130.07,130.01,129.57,128.01,127.50,125.78,52.11,33.49,22.17,19.61,14.52.高分辨质谱(ESI)m/z:[M+Na]+计算为C24H24NaO2Si:395.1438,测试为:395.1442.对映选择性过量值通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.5mL/min,210nm纳米,>99%ee,98:2dr);主要对映异构体出峰时间15.311分钟。
实施例39:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物14a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物14c,淡黄色油状液体70mg,产率为81%,96%ee,>99:1dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.73–7.64(m,2H),7.60(d,J=7.2Hz,2H),7.42–7.32(m,8H),7.32–7.24(m,3H),7.24–7.15(m,3H),7.01(d,J=2.8Hz,2H),4.98(d,J=4.6Hz,1H),4.79(dd,J=31.3,12.7Hz,2H),1.87(dd,J=8.6,3.4Hz,1H),1.68(dd,J=10.6,3.4Hz,1H),1.10–0.97(m,1H).13C NMR(100MHz,CDCl3)δ173.42,140.48,135.90,135.19,135.14,134.54,130.10,129.62,129.58,128.32,128.22,128.07,128.03,127.81,127.59,127.31,66.46,34.86,20.77,14.04.高分辨质谱(ESI)m/z:[M+Na]+计算为C29H26NaO2Si:457.1594,测试为:457.1580.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,210纳米,96%ee,>99:1dr);主要对映异构体出峰时间36.765分钟,次要对映异构体出峰时间为34.694分钟。
实施例40:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物15a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物15c,淡黄色油状液体80mg,产率为89%,98%ee,95:5dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.66–7.57(m,2H),7.56–7.46(m,2H),7.35–7.13(m,11H),7.13–7.01(m,3H),6.85–6.66(m,2H),4.91(d,J=4.5Hz,1H),3.80(dd,J=6.8,5.5Hz,2H),2.47(t,J=6.9Hz,2H),1.73(dd,J=8.6,3.3Hz,1H),1.56(dd,J=10.6,3.3Hz,1H),0.94(ddd,J=10.5,8.8,4.6Hz,1H).13C NMR(100MHz,CDCl3)δ173.66,140.51,137.89,135.43,135.19,135.15,134.73,130.27,129.63,129.59,129.06,128.35,128.22,128.10,128.06,127.27,126.39,65.70,34.78,21.00,14.02.高分辨质谱(ESI)m/z:[M+Na]+计算为C30H28NaO2Si:471.1751,测试为:471.1734.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,210纳米,98%ee,95:5dr);主要对映异构体出峰时间43.225分钟,次要对映异构体出峰时间为37.648分钟。
实施例41:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物16a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物16c,淡黄色油状液体30mg,产率为39%。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.69(d,J=3.4Hz,2H),7.62(d,J=6.4Hz,2H),7.37(dd,J=13.5,5.2Hz,5H),7.25(t,J=16.8Hz,2H),6.83(d,J=8.2Hz,2H),4.97(d,J=4.2Hz,1H),3.77(s,3H),3.32(s,1H),1.83(dd,J=8.4,2.8Hz,1H),1.63(dd,J=10.7,2.7Hz,1H),0.99(td,J=9.7,4.4Hz,1H).13C NMR(100MHz,CDCl3)δ174.33,158.75,135.30,135.14,135.06,134.69,132.72,131.18,129.58,129.55,128.05,128.02,113.62,55.29,52.00,33.90,21.07,14.14.高分辨质谱(ESI)m/z:[M+Na]+计算为C24H24NaO3Si:411.1387,测试为:411.1370.对映选择性过量值通过高效液相测得,手性柱采用Chiralpark OX柱和OD column(正己烷:2-异丙醇=99.5:0.5,0.6mL/min,210纳米,88%ee,93:7dr);主要对映异构体出峰时间83.444分钟,次要对映异构体出峰时间为95.935分钟。
实施例42:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物17a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物17c,淡黄色油状液体70mg,产率为85%,>99%ee,96:4dr。
该产物的理化指标:高分辨质谱(ESI)m/z:[M+Na]+计算为C23H20ClFNaO2Si:433.0797,测试为:433.0792.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,210纳米,>99%ee,96:4dr);主要对映异构体出峰时间13.197分钟,次要对映异构体出峰时间为15.780分钟。
实施例43:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和添加剂四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物18a(0.20mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物18c,淡黄色油状液体80mg,产率为94%,>99%ee,95:5dr。
该产物的理化指标:高分辨质谱(ESI)m/z:[M+Na]+计算为C23H20Cl2NaO2Si:449.0502,测试为:449.0486.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,210纳米,>99%ee,95:5dr);主要对映异构体出峰时间14.124分钟,次要对映异构体出峰时间为16.714分钟。
实施例44:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物19a(0.02mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物19c,淡黄色油状液体80mg,产率为94%,>99%ee。
该产物的理化指标:高分辨质谱(ESI)m/z:[M+Na]+计算为C29H33BNaO4Si:507.2139,测试为:507.2145.对映选择性过量值通过高效液相测得,手性柱采用Phenomenex chiral INA柱和Chiralpark OX柱(正己烷:2-异丙醇=99.3:0.7,0.6mL/min,210纳米,>99%ee);主要对映异构体出峰时间30.492分钟。
实施例45:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物20a(0.02mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物20c,淡黄色油状液体70mg,产率为94%,96%ee,>99:1dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.74–7.65(m,1H),7.64–7.57(m,1H),7.44–7.31(m,3H),7.23(t,J=15.8Hz,1H),7.11(d,J=7.8Hz,1H),4.98(d,J=4.4Hz,1H),3.31(s,1H),2.32(s,2H),1.83(dd,J=8.6,3.3Hz,1H),1.63(dd,J=10.6,3.3Hz,1H),1.07–0.97(m,1H).13C NMR(101MHz,CDCl3)δ174.25,137.60,137.04,135.34,135.17,135.10,134.70,129.97,129.58,129.56,128.99,128.05,128.03,52.04,34.29,21.22,21.02,13.99.高分辨质谱(ESI)m/z:[M+Na]+计算为C24H24NaO2Si:395.1438,测试为:395.1439.对映选择性过量值是被转化为相应的硅醇后通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=98:2,0.6mL/min,210纳米,96%ee,>99%dr);主要对映异构体出峰时间30.421分钟,次要对映异构体出峰时间为61.731分钟。
实施例46:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物21a(0.02mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物21c,淡黄色油状液体70mg,产率为95%,98%ee。
该产物的理化指标:高分辨质谱(ESI)m/z:[M+Na]+计算为C24H24NaO2Si:395.1438,测试为:395.1437.对映选择性过量值是被转化为相应的硅醇后通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=96:4,0.6mL/min,210纳米,98%ee,98:2dr);主要对映异构体出峰时间14.764分钟,次要对映异构体出峰时间为26.102分钟。
实施例47:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物22a(0.02mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物22c,淡黄色油状液体70mg,产率为87%,98%ee,98:2dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.62(dd,J=6.3,2.9Hz,2H),7.56–7.50(m,2H),7.36–7.24(m,8H),7.21(dd,J=12.9,5.9Hz,2H),7.17–7.10(m,1H),4.92(d,J=4.6Hz,1H),3.71(dt,J=10.8,6.7Hz,1H),3.62(dt,J=10.8,6.7Hz,1H),1.75(dd,J=8.6,3.4Hz,1H),1.58(dd,J=10.6,3.3Hz,1H),1.25–1.16(m,2H),1.02(dt,J=15.1,7.5Hz,2H),0.93(ddd,J=10.5,8.8,4.7Hz,1H),0.67(t,J=7.3Hz,3H).13C NMR(100MHz,CDCl3)δ173.65,140.71,135.45,135.16,135.12,134.75,130.03,129.54,129.51,128.11,128.01,127.99,127.16,64.96,34.82,30.32,20.64,18.95,13.83,13.61.高分辨质谱(ESI)m/z:[M+Na]+计算为C26H28NaO2Si:423.1751,测试为:423.1749.对映选择性过量值是被转化为相应的硅醇后通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=98:2,0.6mL/min,210纳米,98%ee,98:2dr);主要对映异构体出峰时间18.106分钟,次要对映异构体出峰时间为35.633分钟。
实施例48:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物23a(0.02mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物23c,淡黄色油状液体60mg,产率为80%,96%ee,>99:1dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.72(d,J=3.4Hz,2H),7.61(d,J=6.7Hz,2H),7.36(dd,J=13.4,6.5Hz,8H),7.29(t,J=7.3Hz,2H),7.26–7.19(m,1H),5.01(d,J=4.8Hz,1H),4.72(dt,J=12.4,6.2Hz,1H),1.81(dd,J=8.5,3.0Hz,1H),1.64(dd,J=10.6,2.8Hz,1H),1.01(m,1H),0.96(d,J=6.2Hz,3H),0.87(d,J=6.2Hz,3H).13C NMR(101MHz,CDCl3)δ173.22,140.84,135.63,135.16,134.84,129.93,129.53,129.48,128.07,128.00,127.98,127.03,68.96,34.88,21.46,21.43,20.57,13.65.高分辨质谱(ESI)m/z:[M+Na]+计算为C25H26NaO2Si:409.1594,测试为:409.1580.对映选择性过量值是被转化为相应的硅醇后通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=98:2,0.6mL/min,210纳米,95%ee,>99dr);主要对映异构体出峰时间13.913分钟,次要对映异构体出峰时间为34.319分钟。
实施例49:
在氮气氛围下,向Schlenk反应管中加入膦配体L2:(R)-DTBM-SegPhos(8.5mg,0.0072mmol),金属催化剂[Rh(cod)2]BF4(2.5mg,0.006mmol)和四(3,5-二(三氟甲基)苯基)硼酸钠(5.3mg,0.006mmol),然后加入2.0mL溶剂正己烷,在30℃下预搅40min后加入环丙烯类化合物19a(0.02mmol),搅拌15min后再加入(0.26mmol)二苯基硅烷,在30℃下继续搅拌反应20h,TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到相应的产物19c,淡黄色油状液体60mg,产率为70%,93%ee,98:2dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.71(dd,J=6.0,2.8Hz,2H),7.65–7.57(m,2H),7.42–7.31(m,8H),7.28(t,J=7.3Hz,2H),7.24–7.19(m,1H),5.02(d,J=4.8Hz,1H),4.52(s,1H),1.81(dd,J=8.6,3.3Hz,1H),1.64(dd,J=10.6,3.2Hz,1H),1.59–1.50(m,1H),1.24(m,9H),1.08–0.96(m,2H).13C NMR(100MHz,CDCl3)δ171.03,138.83,133.55,133.12,133.08,132.82,127.88,127.36,125.91,125.87,124.90,71.20,32.90,28.96,28.85,23.27,21.05,20.99,18.47,11.68.高分辨质谱(ESI)m/z:[M+Na]+计算为C26H28NaO2Si:423.1751,测试为:423.1749.映选择性过量值是被转化为相应的硅醇后通过高效液相测得,手性柱采用Chiralpark OX柱(正己烷:2-异丙醇=98:2,0.6mL/min,210纳米,93%ee,98:2dr);主要对映异构体出峰时间15.226分钟,次要对映异构体出峰时间为32.192分钟。
总之,以上所述仅为本发明的较佳实施例,凡依本发明申请专利范围所作的均等变化与修饰,皆应属本发明专利的涵盖范围。
对比例1:
制备方法与实施例1相同,不添加四(3,5-二(三氟甲基)苯基)硼酸钠TLC监测反应结束后,过滤,萃取,滤液浓缩,经硅胶柱层析纯化,得到50mg淡黄色油状液体产物1c,产率为30%,75%ee,87:13dr。
该产物的理化指标:1H NMR(400MHz,CDCl3)δ7.64–7.57(m,2H),7.53(dd,J=7.1,2.0Hz,2H),7.28(dd,J=6.5,2.6Hz,4H),7.27–7.23(m,4H),7.19(t,J=7.3Hz,2H),7.17–7.10(m,1H),4.90(d,J=4.4Hz,1H),3.22(s,3H),1.76(dd,J=8.6,3.4Hz,1H),1.56(dd,J=10.6,3.4Hz,1H),0.99–0.92(m,1H).13C NMR(100MHz,CDCl3)δ174.11,140.56,135.28,135.16,134.66,130.17,129.64,128.29,128.09,127.38,52.06,34.71,20.96,13.98.高分辨质谱(ESI)m/z:[M+Na]+计算为C23H22NaO2Si:381.1366,测试为:381.1363.Enantiomericexcess was determined by HPLC with a Phenomenex chiral INA column andChiralpark OX column(hexanes:2-propanol=99:1,0.6mL/min,254nm,75%ee,87:13dr);major enantiomer tr=25.58min,minor enantiomer tr=27.74min.
与实施例1相比,说明添加剂可大大的提高目标产物的产率以及对映选择性。

Claims (10)

1.一种双手性中心环丙基硅烷化合物,其特征在于,结构如式(I)所示:
式中,*代表手性碳原子,取代基R1为氢、单取代或多取代的卤原子、烷基、卤代烷基、烷氧基或频哪醇硼酸酯;取代基R2为未被取代或被苯基取代的烷基。
2.根据权利要求1所述的双手性中心环丙基硅烷化合物,其特征在于,所述的取代基R1为氢、单取代或多取代的卤原子、C1~C4烷基、C1~C4卤代烷基、C1~C4烷氧基或频哪醇硼酸酯;取代基R2为未被取代或被苯基取代的C1~C6烷基。
3.一种根据权利要求1或2所述的双手性中心环丙基硅烷化合物的制备方法,包括:在膦配体、铑催化剂、添加剂和反应介质存在的条件下,将式(II)所示的环丙烯与二苯基硅烷通过不对称氢化硅烷化反应合成双手性中心环丙基硅烷化合物,反应式如下所示:
式(II)中R1和R2的定义与式(I)中相同。
4.根据权利要求3所述的双手性中心环丙基硅烷化合物的制备方法,其特征在于,包括:在惰性气体氛围下,将膦配体、铑催化剂、添加剂和反应介质预搅拌20~60min后,依次加入式(II)所示的环丙烯和二苯基硅烷,在10~40℃条件下反应10~40h得到双手性中心环丙基硅烷化合物。
5.根据权利要求3所述的双手性中心环丙基硅烷化合物的制备方法,其特征在于,所述的膦配体为下式L1~L5所示的化合物中的任意一种:
6.根据权利要求3所述的双手性中心环丙基硅烷化合物的制备方法,其特征在于,所述的铑催化剂为二(1,5-环辛二烯)四氟硼酸铑(I)。
7.根据权利要求3所述的双手性中心环丙基硅烷化合物的制备方法,其特征在于,所述的添加剂为四(3,5-二(三氟甲基)苯基)硼酸钠、四苯基硼酸钠或六氟锑酸银中的任意一种。
8.根据权利要求3所述的双手性中心环丙基硅烷化合物的制备方法,其特征在于,所述的式(II)所示的环丙烯与二苯基硅烷、膦配体、铑催化剂、添加剂的摩尔比为1:(1~1.3):(0.03~0.12):(0.03~0.06):(0.03~0.07)。
9.根据权利要求3所述的双手性中心环丙基硅烷化合物的制备方法,其特征在于,所述的反应介质选自正己烷、二氯甲烷、二氯乙烷或乙醚中的任意一种或两种组成的混合物。
10.一种根据权利要求1或2所述的双手性中心环丙基硅烷化合物在手性药物合成中的应用。
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