CN108586284B - 一种轴手性芳基烯烃化合物及其合成方法 - Google Patents

一种轴手性芳基烯烃化合物及其合成方法 Download PDF

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CN108586284B
CN108586284B CN201810375860.1A CN201810375860A CN108586284B CN 108586284 B CN108586284 B CN 108586284B CN 201810375860 A CN201810375860 A CN 201810375860A CN 108586284 B CN108586284 B CN 108586284B
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崔玉明
徐利文
孙巧英
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Hangzhou Fusite Technology Co.,Ltd.
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Abstract

本发明涉及化学合成技术领域,为解决手性轴的芳基烯烃化合物合成过程中存在旋转能垒较低,易于消旋且难以控制反应的问题,本发明提出了一种轴手性芳基烯烃化合物及其合成方法,在手性钯络合物催化下对芳基碳‑氢键直接进行不对称烯基化,从而得到轴手性芳基烯烃化合物。该反应可在空气氛下完成,操作简单,后处理方便。

Description

一种轴手性芳基烯烃化合物及其合成方法
技术领域
本发明涉及化学合成技术领域,具体涉及一种利用钯催化的分子间不对称碳-氢键烯基化反应合成轴手性芳基烯烃的制备方法。
背景技术
轴手性化合物广泛存在于生物活性分子中,作为手性配体和催化剂己在多种类型的不对称催化反应中发挥了重要作用。轴手性常见于旋转受限的联芳环类化合物,鉴于此类分子骨架的重要性,化学家发展了诸多催化构建轴手性联芳环化合物的合成方法,包括芳基化合物间的氧化/交叉偶联、芳环的不对称构筑、联芳环化合物的动力学拆分和去对称化等。与此形成鲜明对照的是,在芳环和烯烃之间具有一个手性轴的芳基烯烃化合物无论是在合成还是应用方面的研究相对滞后,究其原因主要是这类化合物旋转能垒较低易于消旋且难以控制反应的立体选择性。2016年,Gu等报道了利用钯催化的芳基溴化物与腙反应合成轴手性芳基烯烃化合物的研究(Angew.Chem.Int.Ed.2016,55,2286)。使用腙作为卡宾前体使得偶联反应可以在温和的条件下进行,获得了高ee值的目标化合物。随后该小组还发展了钯催化的2-碘代环己烯酮与芳基硼酸的不对称偶联反应合成轴手性芳基烯烃的方法(Angew.Chem.Int.Ed.2017,56,4777)。除了上述过渡金属催化的不对称合成路线外,有机催化也可用于轴手性芳基烯烃的合成。如Tan等利用脯胺醇硅醚催化的1,3-二酮、β-酮酯、丙二腈对炔烃的迈克尔加成反应以高产率、高区域和立体选择性制备了系列芳基烯烃化合物。尽管人们在催化合成轴手性芳基烯烃方面己取得一定的进展,但还有很大的研究空间值得合成化学家去挖掘。比如说,为了得到稳定结构的目标轴手性化合物,通常需要冗长的合成路线以制备多取代和大位阻的芳基卤化物和有机金属试剂,这在一定程度上阻碍了不对称交叉偶联方法学在轴手性芳基烯烃合成领域中的应用。另外,这些催化反应或多或少存在着一些问题,如反应底物范围受限,低转换率和较低的立体选择性。
众所周知,C-H键是一种广泛存在于各类有机化合物的化学键。C-H键活化策略被公认为是一种最直接、快捷构建C-C键和C-杂原子键的有效方法,在提高反应原子经济性的同时还大大缩短了合成路线,减少了废物的排放,属于绿色化学过程。近年来随着化学家在此领域的持续深入研究,已经有开发出几例高效的催化体系,对特定结构的芳基或烯基底物实现了区域选择性和立体选择性的功能化。如Gu等人利用不对称烯基C-H键芳化反应在轴手性磷-烯化合物的催化合成中取得了较高的收率和对映选择性(Chin.J.Chem.2018,36,11),但遗憾的是所用底物为手性化合物。
发明内容
为解决手性轴的芳基烯烃化合物合成过程中存在旋转能垒较低,易于消旋且难以控制反应的问题,本发明提出了一种轴手性芳基烯烃化合物及其合成方法,该反应可在空气氛下完成,操作简单,后处理方便。
本发明是通过以下技术方案实现的:一种轴手性芳基烯烃化合物的结构式如(1)表示:
Figure BDA0001639231620000021
其中,R1选自烷基,芳基中一种,R2选自烷基,芳基中一种;R3选自烷基,芳基,卤素中一种;R4选自酯基,芳基,醛基,羰基,磺酰基,磷酸酯中一种。
作为优选,R1选自甲基、叔丁基、苯基中一种;R2选自甲基、苯基中一种;R3选自甲基、甲氧基、羟基、苯基、氟、氯、溴中一种;R4选自甲酯、乙酯、丁酯、叔丁酯、对甲氧基苯基、对硝基苯基、对氟苯基、对氯苯基、对溴苯基、苯基砜、磷酸二甲酯、磷酸二乙酯中一种。
所述的轴手性芳基烯烃化合物的合成方法为:在手性钯络合物催化下对芳基碳-氢键直接进行不对称烯基化,从而得到轴手性芳基烯烃化合物。
作为优选,合成方法为:以3-烷基-2-芳基1-环己烯基肟和烯烃衍生物为反应物,以钯盐与配体形成的络合物为催化剂前体,在氧化剂存在下,在反应介质中,在空气中于40-80℃下反应10-48h,反应结束后用常规分离方法分离出产物,得到轴手性芳基烯烃。
反应式如下所示:
Figure BDA0001639231620000031
作为优选,3-烷基-2-芳基-1-环己烯基肟选自摩尔浓度为0.1-1mol/L的溶液。
烯烃的使用量与3-烷基-2-芳基-1-环己烯基肟的摩尔比为1.1-3∶1,所述的烯烃为选自共轭或缺电子烯烃。
反应介质选自甲醇、四氢呋喃、特戊醇、甲苯、六氟异丙醇、乙二醇二甲醚中一种或几种。使用量为使反应充分进行的量。
钯盐选自醋酸钯、二(乙酰丙酮)钯、三氟乙酸钯、四乙腈四氟硼酸钯、氯化钯中一种,使用量为3-烷基-2-芳基-1-环己烯基肟摩尔量的1~10%。
配体选自单保护手性氨基酸,使用量为3-烷基-2-芳基-1-环己烯基肟摩尔量的1~20%。作为优选,配体选自具有以下结构式的化合物中一种:
Figure BDA0001639231620000032
氧化剂选自醋酸银、苯醌、氧气、氧化银、碳酸银中一种,氧化剂与3-烷基-2-芳基-1-环己烯基肟的摩尔比大于1.1∶1。作为优选,醋酸银、苯醌、氧化银、碳酸银与3-烷基-2-芳基-1-环己烯基肟的摩尔比为1.1-3∶1
本发明以易于制备的3-烷基-2-芳基-1-环己烯基肟为原料,经分子间的烯化反应即可高效合成系列轴手性芳基烯烃。催化前体为商品化试剂或原位形成,在空气中于一定温度搅拌即可完成反应,操作简单。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。
与现有技术相比,本发明的有益效果是:
(1)本方法可在常温下完成,操作简单,后处理方便。
(2)本方法对含有不同类种取代基的芳基和烯烃均具有较好的适应性,可以较高产率、对映选择性获得系列轴手性芳基烯烃化合物。
具体实施方式
下面通过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。
制备例1:3-甲基-2-碘-1-环己烯酮的合成
向500mL圆底烧瓶中加入碘单质(25.38g,120mmol),吡啶(19.2mL,240mmol,),200mL二氯甲烷。置于搅拌器上搅拌,室温下加入【双(三氟乙酰氧基)碘】苯(51.60g,120mmol)。该溶液在室温下搅拌1小时,直至碘颜色消失。再加入3-甲基-1-环己烯酮(22.02g,200mmol),室温反应过夜。混合物用饱和的过硫酸钠溶液和二氯甲烷萃取三次。有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干得黄色液体(46.1314g,195.5mmol),产率97.7%。
制备例2:3-苯基-2-碘-1-环己烯酮的合成
向250mL圆底烧瓶中加入碘单质(6.34g,30mmol),吡啶(4.8mL,60mmol,),50mL二氯甲烷。置于搅拌器上搅拌,室温下加入【双(三氟乙酰氧基)碘】苯(12.90g,30mmol)。该溶液在室温下搅拌1小时,直至碘颜色消失。再加入3-苯基-1-环己烯酮(8.7g,50mmol),室温反应过夜。混合物用饱和的过硫酸钠溶液和二氯甲烷萃取三次。有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干得黄色液体(6.5g,21.8mmol),产率44%。
制备例3:3-甲基-2-萘基-1-环己烯酮的合成
1-萘基硼酸(1.72g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,untilPH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干,产率83%。
制备例4:3-甲基-2-(2-甲基苯基)-1-环己烯酮的合成
2-甲基苯硼酸(1.35g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,untilPH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚:乙酸乙酯=10:1洗脱,抽干,产率53%。
制备例5:3-甲基-2-(2-氯苯基)-1-环己烯酮的合成
2-氯苯硼酸(1.56g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,untilPH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干产率28%。
制备例6:3-甲基-2-(2-羟基苯基)-1-环己烯酮的合成
2-羟基苯硼酸(1.38g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,untilPH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚∶乙酸乙酯=5∶1洗脱,抽干,产率58%。
制备例7:3-甲基-2-(2-甲氧基苯基)-1-环己烯酮的合成
2-羟基苯硼酸(1.52g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,untilPH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=5∶1洗脱,抽干产率46%。
制备例8:3-甲基-2-联苯-1-环己烯酮的合成
2-苯基苯硼酸(1.98g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,untilPH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干,产率64%。
制备例9:3-甲基-2-(2-甲基-5-氟苯基)-1-环己烯酮的合成
2-甲基-5-氟苯硼酸(1.54g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,until PH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干,产率70%。
制备例10:3-甲基-2-萘己环基-1-环己烯酮的合成
2-萘己环-1-硼酸(2.8g,10mmol),3-甲基-2-碘-1-环己烯酮(2.596g,11mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(0.58g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,until PH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚∶乙酸乙酯=10∶1洗脱,抽干,产率72.3%。
制备例11:3-苯基-2-萘基-1-环己烯酮的合成
1-萘基硼酸(3.44g,20mmol),3-苯基-2-碘-1-环己烯酮(5.96g,20mmol)在氮气保护下溶解于1,4-二氧六环中。加入四(三苯基膦)钯(1.16g,5mol%)。该反应在氮气中置换三次,室温搅拌10分钟后,加入2mol/L的碳酸钠溶液(15mL).将反应移至100℃下反应过夜。冷却至室温,加入15mL乙酸乙酯和20mL水进行稀释,加入2mol/L HCl(ca 13mL,until PH=7)进行中和。该混合液用15mL乙酸乙酯萃取4次,混合物经饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=10∶1洗脱,抽干,产率22%。
制备例12:3-甲基-2-萘基-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-萘基-1-环己烯酮(1.95g,8.3mmol),加入20mL甲醇充分溶解,加入甲氧基胺盐酸盐(2.08g,24mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(2.09g,24mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(30mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率87%。
1H NMR(400MHz,CDCl3)δ7.86-7.81(m,1H),7.77(d,J=8.2Hz,1H),7.66(d,J=8.0Hz,1H),7.49-7.35(m,3H),7.19(dd,J=7.0,1.0Hz,1H),3.53(s,3H),2.77-2.67(m,2H),2.36(dd,J=11.1,5.4Hz,2H),1.99-1.88(m,2H),1.46(s,3H).
13C NMR(101MHz,CDCl3)δ156.88(s),143.35(s),136.51(s),133.49(s),132.37(s),129.82(s),128.12(s),127.37(s),126.78(s),125.88(s),125.45(s),125.32(s),125.25(s),61.45(s),31.79(s),22.99(s),21.75(s),21.21(s).
HRMS(ESI)m/z:[M+Na]+calculated for C18H19NaNO:288.1359,found:288.1361
制备例13:3-甲基-2-(2-甲基苯基)-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-(2-甲基苯基)-1-环己烯酮(0.53g,2.65mmol),加入5mL甲醇充分溶解,加入甲氧基胺盐酸盐(0.66g,8mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(0.67g,8mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(10mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率50%。
1H NMR(400MHz,CDCl3)δ7.15(dt,J=9.2,4.0Hz,3H),6.95(d,J=6.3Hz,1H),3.67(s,3H),2.73-2.49(m,2H),2.25(t,J=5.8Hz,2H),2.10(s,3H),1.89-1.74(m,2H),1.50(d,J=0.5Hz,3H).
13c NMR(101MHz,CDCl3)δ141.72(s),136.51(s),129.93(s),129.31(s),126.53(s),125.17(s),61.54(s),31.55(s),22.87(s),21.38(s),21.11(s),19.42(s).
HRMS(ESI)m/z:[M+Na]+calculated for C15H19NNaO:252.1359,found:252.1370
制备例14:3-甲基-2-(2-氯苯基)-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-(2-氯苯基)-1-环己烯酮(0.32g,1.4mmol),加入5mL甲醇充分溶解,加入甲氧基胺盐酸盐(0.36g,4.2mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(0.36g,4.2mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(10mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率80.7%。
1H NMR(400MHz,CDCl3)δ7.39-7.33(m,1H),7.26-7.16(m,2H),7.11-7.04(m,1H),3.67(s,3H),2.71-2.53(m,2H),2.35-2.17(m,2H),1.90-1.75(m,2H),1.55(s,3H).
13C NMR(101MHz,CDCl3)δ155.81(s),142.85(s),137.46(s),133.93(s),131.74(s),129.39(s),128.99(s),127.88(s),126.12(s),61.58(s),31.53(s),22.74(s),21.35(s),20.91(s).
HRMS(ESI)m/z:[M+H]+calculated for C14H17ClNO:250.0993,found:250.0994
制备例15:3-甲基-2-(2-羟基苯基)-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-(2-羟基苯基)-1-环己烯酮(1.25g,6.2mmol),加入15mL甲醇充分溶解,加入甲氧基胺盐酸盐(1.55g,18.6mmol)。
该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(1.56g,18.6mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(30mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=15∶1洗脱,抽干得白色固体,产率53%。
1H NMR(400MHz,CDCl3)δ7.25-7.18(m,1H),7.01-6.94(m,2H),6.90(t,J=7.3Hz,1H),3.78(s,3H),2.77-2.54(m,2H),2.38-2.19(m,2H),1.92-1.71(m,2H),1.67(s,3H).
13C NMR(101MHz,CDCl3)δ157.44(s),153.57(s),147.22(s),131.64(s),128.77(s),127.52(s),125.80(s),120.25(s),117.37(s),61.93(s),31.97(s),23.41(s),22.53(s),20.57(s).
HRMS(ESI)m/z:[M+H]+calculated for C14H18NO2:232.1332,found:232.1336
制备例16:3-甲基-2-(2-甲氧基苯基)-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-(2-甲氧基苯基)-1-环己烯酮(0.40g,1.9mmol),加入5mL甲醇充分溶解,加入甲氧基胺盐酸盐(0.48g,5.7mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(0.48g,5.7mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(10mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=15∶1洗脱,抽干得白色固体,产率99%。
1H NMR(400MHz,CDCl3)δ7.28-7.22(m,1H),7.01-6.87(m,3H),3.76(d,J=6.4Hz,3H),3.67(s,3H),2.73-2.52(m,2H),2.34-2.17(m,2H),1.90-1.72(m,2H),1.57(s,3H).
13C NMR(101MHz,CDCl3)δ157.21(s),156.46(s),142.11(s),131.61(s),128.05(s),127.85(s),127.71(s),120.19(s),111.32(s),61.40(s),55.93(s),31.61(s),22.84(s),21.63(s),21.03(s).
HRMS(ESI)m/z:[M+Na]+calculated for C15H19NNaO2:268.1308,found:268.1321
制备例17:3-甲基-2-联苯-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-联苯-1-环己烯酮(1.68g,6.4mmol),加入20mL甲醇充分溶解,加入甲氧基胺盐酸盐(1.61g,19.2mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(1.61g,19.2mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(20mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率51%。
1H NMR(400MHz,CDCl3)δ7.39-7.26(m,7H),7.23(dd,J=6.1,3.4Hz,1H),7.12(d,J=6.3Hz,1H),3.69(s,3H),2.55-2.34(m,2H),2.16-1.89(m,2H),1.77-1.54(m,2H),1.40(s,3H).
13C NMR(101MHz,CDCl3)δ157.15(s),142.37(s),142.02(s),141.85(s),136.90(s),131.03(s),129.28(s),128.69(s),127.38(s),126.84(s),126.60(s),126.47(s),61.53(s),31.50(s),22.72(s),21.74(s),20.73(s).
HRMS(ESI)m/z:[M+H]+calculated for C20H22NO:292.1696,found:292.1685
制备例18:3-甲基-2-(2-甲基-5-氟苯基)-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-(2-甲基-5-氟苯基)-1-环己烯酮(1.53g,7mmol),加入15mL甲醇充分溶解,加入甲氧基胺盐酸盐(1.75g,21mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(1.76g,21mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(30mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率68%。
1H NMR(400MHz,CDCl3)δ7.14-7.07(m,1H),6.85(td,J=8.5,2.6Hz,1H),6.69(dd,J=9.5,2.5Hz,1H),3.68(s,3H),2.71-2.53(m,2H),2.25(t,J=5.9Hz,2H),2.05(s,3H),1.81(p,J=6.4Hz,2H),1.52(s,3H).
13c NMR(101MHz,CDCl3)δ162.02(s),159.61(s),155.79(s),142.05(s),139.93(d,J=7.8Hz),132.10(d,J=3.0Hz),130.36(d,J=7.8Hz),116.57(d,J=20.6Hz),113.15(d,J=20.7Hz),61.60(s),31.49(s),22.77(s),21.31(s),21.00(s),18.62(s).
HRMS(ESI)m/z:[M+H]+calculated for C15H19FNO:248.1445,found:248.1448
制备例19:3-甲基-2-萘己环基-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-甲基-2-萘己环基-1-环己烯酮(0.52g,2mmol),加入5mL甲醇充分溶解,加入甲氧基胺盐酸盐(0.50g,6mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(0.51g,6mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(10mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率66%。
1H NMR(400MHz,CDCl3)δ7.38-7.30(m,2H),7.28(d,J=6.4Hz,1H),7.22(d,J=6.1Hz,1H),7.14(d,J=7.0Hz,1H),3.56(s,3H),3.45-3.35(m,4H),2.72(td,J=6.3,2.8Hz,2H),2.42-2.28(m,2H),1.96-1.87(m,2H),1.48(s,3H).
13c NMR(101MHz,CDCl3)δ156.97(s),145.95(s),144.47(s),143.20(s),139.33(s),131.65(s),130.82(s),129.19(d,J=15.8Hz),127.19(s),121.10(s),118.73(d,J=17.0Hz),61.46(s),31.87(s),30.55(s),30.12(s),23.08(s),21.86(s),21.28(s).
HRMS(ESI)m/z:[M+Na]+calculated for C20H21NNaO:314.1515,found:314.1528
制备例20:3-苯基-2-萘基-1-环己烯基肟的合成
向100mL圆底烧瓶加入3-苯基-2-萘基-1-环己烯酮(1.31g,4.4mmol),加入10mL甲醇充分溶解,加入甲氧基胺盐酸盐(1.10g,13.2mmol)。该溶液在室温下搅拌10分钟,然后分批次加入碳酸氢钠(1.11g,13.2mmol),在此反应温度下反应6小时以上。混合液用乙酸乙酯(20mL)稀释,饱和氯化钠水溶液洗涤,有机相用无水硫酸钠干燥,混合物经硅胶柱层析,石油醚/乙酸乙酯=30∶1洗脱,抽干得白色固体,产率86%。
1H NMR(400MHz,CDCl3)δ7.84-7.76(m,1H),7.73(dd,J=6.2,2.9Hz,1H),7.60(d,J=8.2Hz,1H),7.45-7.32(m,2H),7.21(dd,J=12.4,4.9Hz,1H),7.00(d,J=6.9Hz,1H),6.97-6.87(m,3H),6.87-6.73(m,2H),3.53(s,3H),2.95-2.72(m,3H),2.66(dt,J=17.4,5.7Hz,1H),2.17-1.96(m,2H).
13C NMR(101MHz,CDCl3)δ156.78(s),146.16(s),142.33(s),136.23(s),133.16(d,J=19.4Hz),131.91(s),128.49(s),128.06(s),127.37(d,J=11.0Hz),126.82(s),126.49(d,J=3.9Hz),125.38-124.88(m),61.74(s),32.31(s),23.28(s),21.57(s).
HRMS(ESI)m/z:[M+H]+calculated for C23H22NO:328.1696,found:328.1696
实施例1:
Ethyl(E)-3-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)acry late的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.13g,0.5mmol),丙烯酸乙酯(0.16mL,1.5mmol),醋酸钯(0.01g,0.05mmol),N-乙酰-L-丙氨酸(0.013g,0.1mmol),醋酸银(0.25g,1.5mmol),再加入5mL甲醇。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为70%.
1H NMR(400MHz,CDCl3)δ7.75(d,J=13.0Hz,1H),7.72(d,J=4.5Hz,1H),7.70-7.65(m,2H),7.63(d,J=8.9Hz,1H),7.42-7.16(m,2H),6.38(d,J=16.0Hz,1H),4.17(q,J=7.1Hz,2H),3.43(d,J=17.2Hz,3H),2.80-2.56(m,2H),2.34(t,J=5.9Hz,2H),1.98-1.87(m,2H),1.29(s,3H),1.26(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ167.36(s),156.20(s),144.93(s),143.71(s),138.54(s),134.11(s),132.39(s),130.02(s),127.99(s),127.43(s),127.21(s),126.73(s),126.57(s),126.31(s),122.63(s),118.32(s),61.55(s),60.28(s),31.84(s),22.90(s),21.49(s),21.18(s),14.33(s).
HRMS(ESI)m/z:[M+Na]+calculated for C23H25NNa03:386.1727,found:386.1739Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,97%ee);major enantiomer tr=5.97min,minor enantiomer tr=6.82min.
Figure BDA0001639231620000121
实施例2:
Ethyl(E)-3-((E)-2′-(methoxyimino)-6,6′-dimethyl-2′,3′,4′,5′-tetrahydro-[1,1′-biphenyl]-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-(2-甲基苯基)-1-环己烯基肟(0.023g,0.1mmol),丙烯酸乙酯(32μL,0.3mmol),三氟乙酸钯(0.0017g,0.005mmol),N-乙酰-L-丙氨酸(0.0026g,0.02mmol),醋酸银(0.05g,0.3mmol),再加入1mL甲苯。将反应管移至40℃油浴反应14小时。快速柱层析后减压浓缩得产物,产率为43%.
1H NMR(400MHz,CDCl3)δ7.62(d,J=16.0Hz,1H),7.47(dt,J=7.8,3.9Hz,1H),7.24-7.14(m,2H),6.31(d,J=16.0Hz,1H),4.22(tt,J=7.2,3.6Hz,2H),3.64(d,J=7.1Hz,3H),2.74(ddd,J=16.9,7.3,5.5Hz,1H),2.58(ddd,J=16.9,8.1,5.7Hz,1H),2.39-2.21(m,2H),2.10(s,3H),1.96-1.79(m,2H),1.40(s,3H),1.31(t,J=7.1Hz,3H).
1aC NMR(101MHz,CDCl3)δ167.32(s),155.57(s),144.14(s),143.30(s),139.25(s),137.23(s),133.23(s),131.13(s),128.38(s),126.81(s),123.14(s),118.11(s),61.60(s),60.19(s),31.60(s),22.81(s),21.07(s),19.60(s),14.30(s).
HRMS(ESI)m/z:[M+H]+calculated for C20H26NO3:328.1907,found:328.1915Enantiomeric excess was determined by HPLC with a Chiralpak OJ-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,99.9%ee);major enantiomer tr=4.95min,minor enantiomer tr=6.55min.
Figure BDA0001639231620000122
实施例3:
Ethyl(E)-3-((E)-6-chloro-2′-(methoxyimino)-6′-methyl-2′,3′,4′,5′-tetrahydro-[1,1′-biphe nyl]-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-(2-氯苯基)-1-环己烯基肟(0.0747g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),氯化钯(0.0053g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),苯醌(0.0973g,0.9mmol),再加入3mL甲苯。
将反应管移至50℃油浴反应36小时。快速柱层析后减压浓缩得产物,产率为35%.
1H NMR(400MHz,CDCl3)δ7.57(d,J=16.1Hz,1H),7.53(d,J=8.2Hz,1H),7.41(d,J=7.9Hz,1H),7.23(t,J=7.9Hz,1H),6.34(d,J=16.0Hz,1H),4.23(q,J=7.1Hz,2H),3.63(s,3H),2.73(dt,J=16.8,6.3Hz,1H),2.58(ddd,J=16.8,7.8,6.0Hz,1H),2.32(t,J=6.0Hz,2H),1.93-1.82(m,2H),1.46(s,3H),1.31(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ166.87(s),155.19(s),144.40(s),142.95(s),138.22(s),135.57(s),134.80(s),130.33(s),127.95(s),126.99(s),124.01(s),119.61(s),61.64(s),60.41(s),31.59(s),22.66(s),21.09(s),20.86(s),14.27(s).
HRMS(ESI)m/z:[M+H]+calculated for C19H23ClNO3:348.1361,found:348.1357Enantiomeric excess was determined by HPLC with a Chiralpak OJ-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,99.9%ee);major enantiomer tr=5.53min,minor enantiomer tr=6.68min.
Figure BDA0001639231620000131
实施例4:
ethyl(E)-3-((E)-6-hydroxy-2′-(methoxyimino)-6′-methyl-2′,3′,4′,5′-tetrahydro-[1,1′-bip henyl]-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-(2-羟基苯基)-1-环己烯基肟(0.0693g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),醋酸钯(0.0034g,0.015mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至70℃油浴反应20小时。快速柱层析后减压浓缩得产物,产率为69%.
1H NMR(400MHz,CDCl3)δ7.55(d,J=15.9Hz,1H),7.26-7.18(m,2H),6.98(dd,J=7.0,2.0Hz,1H),6.34(d,J=15.9Hz,1H),5.45(d,J=82.7Hz,1H),4.22(dt,J=13.4,6.7Hz,2H),3.71(s,3H),2.87-2.56(m,2H),2.42-2.24(m,2H),1.89(dd,J=11.8,5.8Hz,2H),1.51(s,3H),1.31(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ167.18(s),156.15(s),153.41(s),148.92(s),143.30(s),134.46(s),128.52(s),126.21(s),123.85(s),118.78(s),118.44(s),117.59(s),61.93(s),60.35(s),31.86(s),23.16(s),21.80(s),20.77(s),14.30(s).
HRMS(ESI)m/z:[M+H]+calculated for C19H24NO4:330.1700,found:330.1690Enantiomeric excess was determined by HPLC with a Chiralpak OX-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,95.5%ee);major enantiomer tr=8.93min,minor enantiomer tr=10.41min.
Figure BDA0001639231620000141
实施例5:
ethyl(E)-3-((E)-6-methoxy-2′-(methoxyimino)-6′-methyl-2′,3′,4′,5′-tetrahydro-[1,1′-bip henyl]-2-yl)acrylate)的合成
向25mL反应管中加入3-甲基-2-(2-甲氧基苯基)-1-环己烯基肟(0.0735g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),醋酸钯(0.0067g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至70℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为72%.
1H NMR(400MHz,CDCl3)δ7.59(d,J=16.0Hz,1H),7.28-7.24(m,2H),6.96-6.84(m,1H),6.33(d,J=16.0Hz,1H),4.22(q,J=7.1Hz,2H),3.75(s,3H),3.62(s,3H),2.75(dt,J=16.7,6.1Hz,1H),2.55(ddd,J=16.7,8.3,5.9Hz,1H),2.29(d,J=5.7Hz,2H),1.91-1.81(m,2H),1.45(s,3H),1.31(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ167.22(s),157.35(s),156.00(s),143.71(d,J=4.6Hz),134.58(s),129.09(s),127.84(s),125.33(s),118.58(s),118.04(s),112.39(s),61.46(s),60.23(s),56.19(s),31.62(s),22.78(s),21.38(s),21.04(s),14.29(s).
HRMS(ESI)m/z:[M+H]+calculated for C20H26NO4:344.1856,found:344.1852Enantiomeric excess was determined by HPLC witha Chiralpak IC column(hexanes:2-propanol=90∶10,0.8mL/min,254nm,99.9%ee);major enantiomer tr=5.86min,minor enantiomer tr=7.30min.
Figure BDA0001639231620000142
实施例6:
ethyl(E)-3-((E)-2″-(methoxyimino)-6″-methyl-2″,3″,4″,5″-tetrahydro-[1,1′:2′,1″-terph enyl]-3′-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-联苯-1-环己烯基肟(0.0873g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),醋酸钯(0.0067g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),苯醌(0.0973g,0.9mmol),再加入3mL四氢呋喃。将反应管移至60℃油浴反应40小时。快速柱层析后减压浓缩得产物,产率为38%.
1H NMR(400MHz,CDCl3)δ7.69-7.65(m,1H),7.64-7.62(m,1H),7.36(t,J=7.6Hz,1H),7.34-7.30(m,1H),7.29-7.25(m,3H),7.25-7.22(m,2H),6.37(d,J=15.9Hz,1H),4.23(q,J=7.1Hz,2H),3.67(s,3H),2.53(ddd,J=16.7,8.6,4.8Hz,1H),2.31(ddd,J=16.7,8.2,4.8Hz,1H),2.23-2.07(m,1H),1.99-1.84(m,1H),1.78-1.63(m,1H),1.52-1.41(m,1H),1.32(dd,J=8.9,5.3Hz,6H).
13C NMR(101MHz,CDCl3)δ167.24(s),156.84(s),144.26(s),143.79(s),142.69(s),141.92(s),138.07(s),133.87(s),131.13(s),128.62(s),128.28(s),127.33(s),127.09(s),126.74(s),124.70(s),118.52(s),61.61(s),60.26(s),31.44(s),22.53(s),21.65(s),20.60(s),14.31(s).
HRMS(ESI)m/z:[M+H]+calculated for C25H28No3:390.2064,found:390.2061Enantiomeric excess was determined by HPLC with a Chiralpak IC column(hexanes:2-propanol=96∶4,0.8mL/min,254nm,99.9%ee);major enantiomer tr=6.20min,minor enantiomer tr=7.11min.
Figure BDA0001639231620000151
实施例7:
ethyl(E)-3-((E)-3-fluoro-2′-(methoxyimino)-6,6′-dimethyl-2′,3′,4′,5′-tetrahydro-[1,1′-biphenyl]-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-(2-甲基-5-氟苯基)-1-环己烯基肟(0.0741g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),二(乙酰丙酮)钯(0.0091g,0.03mmol),N-乙酰-L-亮氨酸(0.0105g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为56%.
1H NMR(400MHz,CDCl3)δ7.45(d,J=16.3Hz,1H),7.13(dd,J=8.2,5.5Hz,1H),6.93(dd,J=11.1,8.5Hz,1H),6.56(d,J=16.3Hz,1H),4.22(q,J=7.0Hz,2H),3.65(d,J=10.1Hz,3H),2.78-2.68(m,1H),2.57(ddd,J=16.9,8.0,5.8Hz,1H),2.37-2.23(m,2H),2.05(s,3H),1.93-1.80(m,2H),1.43(s,3H),1.31(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ167.63(s),161.58(s),159.08(s),155.23(s),143.50(s),141.12(d,J=2.9Hz),138.29(s),132.63(d,J=3.4Hz),131.43(d,J=9.4Hz),128.18(s),122.52(s),122.37(s),121.17(s),121.07(s),114.20(s),113.98(s),61.67(s),60.28(s),31.56(s),22.76(s),21.00(d,J=7.3Hz),19.17(s),14.30(s).
HRMS(ESI)m/z:[M+H]+calculated for C20H25FNO3:346.1813,found:346.1806Enantiomeric excess was determined by HPLC with a Chiralpak IC column(hexanes:2-propanol=96∶4,0.8mL/min,254nm,97.7%ee);major enantiomer tr=6.00min,minor enantiomer tr=7.70min.
Figure BDA0001639231620000161
实施例8:
ethyl(E)-3-(5-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)-1,2-dihydroacenaph thylen-4-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-萘己环基-1-环己烯基肟(0.0981g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),四乙腈四氟硼酸钯(0.0067g,0.015mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),氧气,再加入3mL甲醇。将反应管移至40℃油浴反应32小时。快速柱层析后减压浓缩,得产物产率为26%.
1H NMR(400MHz,CDCl3)δ7.77(d,J=16.0Hz,1H),7.48(s,1H),7.31(d,J=8.3Hz,1H),7.19(d,J=6.8Hz,2H),6.37(d,J=15.9Hz,1H),4.17(q,J=7.1Hz,2H),3.48-3.40(m,3H),3.38-3.28(m,4H),2.78-2.57(m,2H),2.33(t,J=5.9Hz,2H),1.98-1.85(m,2H),1.31(s,3H),1.26(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ167.51(s),156.35(s),145.71(s),144.96(d,J=11.6Hz),144.63(s),140.11(s),134.64(s),131.77(s),130.69(s),128.04(s),126.84(s),121.96(s),120.30(s),117.74(s),115.94(s),61.51(s),60.19(s),31.88(s),30.50(s),30.02(s),22.96(s),21.52(s),21.24(s),14.33(s).
HRMS(ESI)m/z:[M+H]+calculated for C25H28NO3:390.2064,found:390.2061Enantiomeric excess was determined by HPLC with a Chiralpak OX-Hcolumn(hexanes:2-propanol=98∶2,0.5mL/min,254nm,98%ee);major enantiomer tr=15.91min,minor enantiomer tr=19.29min.
Figure BDA0001639231620000171
实施例9:
ethyl(E)-3-(1-((E)-3-(methoxyimino)-3,4,5,6-tetrahydro-[1,1′-biphenyl]-2-yl)naphthale n-2-yl)acrylate的合成
向25mL反应管中加入3-苯基-2-萘基-1-环己烯基肟(0.0981g,0.3mmol),丙烯酸乙酯(96μL,0.9mmol),醋酸钯(0.0067g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入2mL甲醇。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为62%.
1H NMR(400MHz,CDCl3)δ7.89(d,J=16.0Hz,1H),7.85(d,J=9.3Hz,1H),7.74-7.67(m,1H),7.61(d,J=8.6Hz,1H),7.49(d,J=8.7Hz,1H),7.41(p,J=6.3Hz,2H),6.87(q,J=6.0Hz,3H),6.77(d,J=6.4Hz,2H),6.24(d,J=15.9Hz,1H),4.35-4.17(m,2H),3.49(d,J=13.9Hz,3H),3.03-2.77(m,3H),2.71(dt,J=11.7,5.6Hz,1H),2.14(d,J=4.2Hz,2H),1.35(t,J=7.1Hz,3H).
13C NMR(101MHz,CDCl3)δ167.34(s),156.32(s),147.92(s),144.06(s),141.78(s),138.13(s),133.62(s),133.24(s),130.15(s),128.81(s),127.89(s),127.46(s),127.39(s),127.26(s),126.73(s),126.65(s),126.29(s),126.13(s),122.38(s),118.13(s),61.79(s),60.25(s),32.39(s),23.18(s),21.51(s),14.39(s).
HRMS(ESI)m/z:[M+H]+calculated for C28H28NO3:426.2064,found:426.2066Enantiomeric excess was determined by HPLC with a Chiralpak IC column(hexanes:2-propanol=95∶5,0.8mL/min,254nm,95.5%ee);major enantiomer tr=6.84min,minor enantiomer tr=8.52min.
Figure BDA0001639231620000172
实施例10:
methyl
(E)-3-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),丙烯酸甲酯(0.0775g,0.9mmol),醋酸钯(0.0034g,0.015mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至50℃油浴反应36小时。快速柱层析后减压浓缩得产物,产率为67%.
1H NMR(400MHz,CDCl3)δ7.83(d,J=5.7Hz,1H),7.81-7.65(m,4H),7.44(dt,J=15.0,7.2Hz,2H),6.46(d,J=16.0Hz,1H),3.79(s,3H),3.49(s,3H),2.85-2.65(m,2H),2.43(t,J=6.1Hz,2H),2.04-1.95(m,2H),1.37(s,3H)
13C NMR(101MHz,CDCl3)δ167.78(s),156.18(s),144.94(s),143.95(s),138.59(s),134.14(s),132.37(s),129.98(s),127.98(s),127.44(s),127.20(s),126.65(d,J=11.8Hz),126.33(s),122.63(s),117.92(s),61.55(s),51.55(s),31.83(s),22.88(s),21.46(s),21.17(s).
HRMS(ESI)m/z:[M+Na]+calculated for C22H23NNaO3:372.1570,found:372.1579Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,96%ee);major enantiomer tr=6.21min.minor enantiomer tr=7.31min.
Figure BDA0001639231620000181
实施例11:
butyl
(E)-3-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),丙烯酸丁酯(0.0385g,0.3mmol),氯化钯(0.0053g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为34%.
1H NMR(400MHz,CDCl3)δ7.82(d,J=6.7Hz,1H),7.77(dd,J=14.1,5.2Hz,3H),7.73-7.67(m,1H),7.43(dt,J=21.7,6.9Hz,2H),6.46(d,J=16.0Hz,1H),4.20(t,J=6.5Hz,2H),3.49(s,3H),2.88-2.61(m,2H),2.42(t,J=6.0Hz,2H),1.99(p,J=6.4Hz,2H),1.75-1.63(m,2H),1.52-1.39(m,2H),1.37(s,3H),0.97(t,J=7.4Hz,3H).
13C NMR(101MHz,CDCl3)δ167.40(s),156.18(s),144.91(s),143.62(s),138.50(s),134.11(s),132.39(s),130.02(s),127.98(s),127.42(s),127.22(s),126.64(d,J=15.6Hz),126.30(s),122.59(s),118.35(s),64.19(s),61.53(s),31.83(s),30.81(s),22.88(s),21.47(s),21.16(s),19.26(s),13.73(s).
HRMS(ESI)m/z:[M+Na]+calculated for C25H29NNaO3:414.2040,found:414.2052Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,96%ee);major enantiomer tr=5.77min,minor enantiomer tr=6.74min.
Figure BDA0001639231620000191
实施例12:
tert-butyl
(E)-3-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)acrylate的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),丙烯酸叔丁酯(0.1154g,0.9mmol),二(乙酰丙酮)钯(0.0091g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至40℃油浴反应32小时。快速柱层析后减压浓缩得产物,产率为56%.
1H NMR(400MHz,CDCl3)δ7.80(d,J=7.8Hz,1H),7.77-7.73(m,2H),7.70(dd,J=8.8,5.4Hz,2H),7.42(ddd,J=15.1,13.7,6.8Hz,2H),6.40(d,J=16.0Hz,1H),3.49(s,3H),2.84-2.65(m,2H),2.42(t,J=6.0Hz,2H),2.08-1.90(m,2H),1.53(s,9H),1.37(s,3H).
13C NMR(101MHz,CDCl3)δ166.63(s),156.23(s),144.89(s),142.48(s),138.25(s),134.00(s),132.42(s),130.13(s),127.96(s),127.35(s),127.20(s),126.72(s),126.45(s),126.25(s),122.65(s),120.26(s),80.12(s),61.54(s),31.83(s),28.29(s),22.90(s),21.52(s),21.19(s).
HRMS(ESI)m/z:[M+Na]+calculated for C25H29NNaO3:414.2040,found:414.2050Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=97∶3,0.8mL/min,254nm,99.9%ee);major enantiomer tr=5.29min,minor enantiomer tr=6.52min.
Figure BDA0001639231620000201
实施例13:
diethyl((E)-2-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)vinyl)phosphonate的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),乙烯基膦酸二乙酯(0.1477g,0.9mmol),醋酸钯(0.0067g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。
将反应管移至45℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为88%.
1H NMR(400MHz,CDCl3)δ7.82(d,J=7.9Hz,1H),7.78(d,J=8.8Hz,1H),7.71(d,J=8.8Hz,2H),7.65-7.53(m,1H),7.52-7.39(m,2H),6.27(t,J=18.2Hz,1H),4.12(dd,J=13.7,6.8Hz,4H),3.48(s,3H),2.73(d,J=3.3Hz,2H),2.41(d,J=5.4Hz,2H),2.03-1.95(m,2H),1.42-1.31(m,9H).
13C NMR(101MHz,CDCl3)δ155.06(s),143.97(s),133.03(s),131.20(s),127.00(s),126.43(s),126.01(s),125.57(d,J=2.7Hz),125.36(s),121.30(s),60.83(d,J=4.2Hz),60.51(s),30.79(s),21.84(s),20.53(s),20.10(s),15.37(d,J=6.1Hz).
HRMS(ESI)m/z:[M+Na]+calculated for C24H30NNaO4P:450.1805,found:450.1819Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,99.9%ee);major enantiomer tr=11.03min,minor enantiomer tr=12.43min.
Figure BDA0001639231620000202
实施例14:
(E)-1-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)pent-1-en-3-one的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),乙基乙烯酮(0.0757g,0.9mmol),四乙腈四氟硼酸钯(0.0067g,0.015mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL六氟异丙醇∶乙二醇二甲醚=1∶1。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为27%.
1H NMR(400MHz,CDCl3)δ7.81(d,J=8.0Hz,1H),7.80-7.75(m,2H),7.73(t,J=4.9Hz,1H),7.69(d,J=3.3Hz,1H),7.51-7.37(m,2H),6.76(d,J=16.2Hz,1H),3.49(s,3H),2.89-2.61(m,4H),2.43(t,J=6.0Hz,2H),2.05-1.93(m,2H),1.37(s,3H),1.17(t,J=7.3Hz,3H).
13C NMR(101MHz,CDCl3)δ201.26(s),145.09(s),141.54(s),138.96(s),134.18(s),132.37(s),130.11(s),128.05(s),127.51(s),127.20(s),126.68(s),126.40(s),126.29(s),122.50(s),61.61(s),33.92(s),31.85(s),22.91(s),21.54(s),21.25(s),8.44(s).
HRMS(ESI)m/z:[M+Na]+calculated for C23H25NNaO2:370.1778,found:370.1789Enantiomeric excess was determined by HPLC with a Chiralpak AS-Hcolumn(hexanes:2-propanol=94∶6,0.8mL/min,254nm,99.9%ee);major enantiomer tr=8.22min,minor enantiomer tr=10.65min.
Figure BDA0001639231620000211
实施例15:
(E)-2-(2-((E)-4-chlorostyryl)naphthalen-1-yl)-3-methylcyclohex-2-en-1-one O-methyl oxime的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0265g,0.1mmol),对氯苯乙烯(0.0416g,0.3mmol),醋酸钯(0.0023g,0.01mmol),N-苄氧羰基-L-缬氨酸(0.0050g,0.02mmol),醋酸银(0.05g,0.3mmol),再加入1mL甲醇。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为74%.
1H NMR(400MHz,CDCl3)δ7.83(d,J=8.7Hz,1H),7.79(dd,J=14.4,5.5Hz,2H),7.70-7.63(m,1H),7.46-7.35(m,4H),7.31(d,J=8.5Hz,2H),7.18(d,J=16.3Hz,1H),7.07(d,J=16.3Hz,1H),3.51(s,3H),2.89-2.70(m,2H),2.42(d,J=5.6Hz,2H),2.00(qt,J=14.3,7.3Hz,2H),1.38(s,3H).
13C NMR(101MHz,CDCl3)δ155.97(s),144.61(s),136.60(s),135.34(s),133.07(s),132.89(s),132.59(s),132.19(s),128.83(s),128.39(s),127.93(s),127.74(s),127.59(d,J=4.0Hz),127.21(s),126.24(s),126.05(s),125.51(s),122.49(s),61.59(s),31.89(s),29.71(s),23.00(s),21.45(d,J=5.9Hz).
HRMS(ESI)m/z:[M+H]+calculated for C26H25ClNO:402.1619,found:402.1616Enantiomeric excess was determined by HPLC with a Chiralpak OX-Hcolumn(hexanes:2-propanol=98∶2,0.5mL/min,254nm,97%ee);major enantiomer tr=9.04min,minor enantiomer tr=9.94min.
Figure BDA0001639231620000221
实施例16:
(E)-2-(2-((E)-4-fluorostyryl)naphthalen-1-yl)-3-methylcyclohex-2-en-1-one O-methyl oxime的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0265g,0.1mmol),对氟苯乙烯(0.0366g,0.3mmol),醋酸钯(0.0023g,0.01mmol),N-乙酰-L-丙氨酸(0.0026g,0.02mmol),氧化银(0.0372g,0.3mmol),再加入1mL甲醇。将反应管移至40℃油浴反应28小时。快速柱层析后减压浓缩得产物,产率为71%.
1H NMR(400MHz,CDCl3)δ7.83(d,J=8.7Hz,1H),7.81-7.74(m,2H),7.66(dd,J=6.8,2.8Hz,1H),7.47-7.34(m,4H),7.10(d,J=2.6Hz,2H),7.05(dd,J=12.1,5.3Hz,2H),3.51(s,3H),2.91-2.68(m,2H),2.43(t,J=5.7Hz,2H),2.07-1.94(m,2H),1.38(s,3H).
13C NMR(101MHz,CDCl3)δ163.43(s),160.98(s),155.97(s),144.54(s),135.09(s),134.28(s),132.99(s),132.61(s),132.35(s),127.99-127.83(m),127.79(s),127.67(s),127.52(s),127.17(s),126.20(s),126.02(s),125.41(s),122.50(s),115.70(s),115.49(s),61.58(s),31.89(s),23.00(s),21.45(d,J=4.5Hz).
HRMS(ESI)m/z:[M+H]+calculated for C26H25FNO:386.1915,found:386.1910Enantiomeric excess was determined by HPLC with a Chiralpak OX-Hcolumn(hexanes:2-propanol=98∶2,0.8mL/min,254nm,96%ee);major enantiomer tr=8.89min,minor enantiomer tr=9.78min.
Figure BDA0001639231620000222
实施例17:
(E)-2-(2-((E)-4-bromostyryl)naphthalen-1-yl)-3-methylcyclohex-2-en-1-one O-methyl oxime的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0265g,0.1mmol),对溴苯乙烯(0.0549g,0.3mmol),二(乙酰丙酮)钯(0.0091g,0.01mmol),Boc-L-叔亮氨酸(0.0046g,0.02mmol),醋酸银(0.05g,0.3mmol),再加入1mL甲醇。
将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为64%.
1H NMR(400MHz,CDCl3)δ7.83(d,J=8.7Hz,1H),7.81-7.74(m,2H),7.71-7.61(m,1H),7.47(d,J=8.5Hz,2H),7.44-7.36(m,2H),7.31(d,J=8.4Hz,2H),7.19(d,J=16.3Hz,1H),7.05(d,J=16.3Hz,1H),3.52(d,J=9.9Hz,3H),2.88-2.68(m,2H),2.42(d,J=5.2Hz,2H),2.07-1.91(m,2H),1.38(s,3H)
13C NMR(101MHz,CDCl3)δ155.97(s),144.61(s),137.05(s),135.38(s),133.08(s),132.59(s),132.17(s),131.77(s),128.52(s),127.94(s),127.74(s),127.62(s),127.23(s),126.24(s),126.06(s),125.53(s),122.48(s),121.00(s),61.59(s),31.89(s),23.00(s),21.45(d,J=6.2Hz).
HRMS(ESI)m/z:[M+H]+calculated for C26H24BrNO:446.1114,found:446.1115Enantiomeric excess was determined by HPLC with a Chiralpak OX-Hcolumn(hexanes:2-propanol=98∶2,0.5mL/min,254nm,95%ee);major enantiomer tr=9.49min,minor enantiomer tr=10.37min.
Figure BDA0001639231620000231
实施例18:
(E)-2-(2-((E)-4-methoxystyryl)naphthalen-1-yl)-3-methylcyclohex-2-en-1-oneO-methyl oxime的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),对甲氧基苯乙烯(0.1208g,0.9mmol),三氟乙酸钯(0.0100g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL四氢呋喃。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为50%.
1H NMR(400MHz,CDCl3)67.85(d,J=8.7Hz,1H),7.78(dd,J=14.8,5.8Hz,2H),7.70-7.62(m,1H),7.43-7.35(m,4H),7.08(s,2H),6.90(d,J=8.5Hz,2H),3.83(s,3H),3.51(s,3H),2.86-2.71(m,2H),2.42(t,J=5.8Hz,2H),2.07-1.96(m,2H),1.38(s,3H).
13C NMR(101MHz,CDCl3)δ159.14(s),155.98(s),144.45(s),134.59(s),132.78(d,J=3.3Hz),132.67(s),130.91(s),128.38(s),127.89(s),127.67(s),127.07(s),126.15(s),125.92(s),125.70(s),125.17(s),122.56(s),114.15(s),61.58(s),55.37(s),31.90(s),23.02(s),21.47(d,J=3.7Hz).
HRMS(ESI)m/z:[M+H]+calculated for C27H28NO2:398.2115,found:398.2104Enantiomeric excess was determined by HPLC with a Chiralpak OX-Hcolumn(hexanes:2-propanol=95∶5,0.8mL/min,254nm,96%ee);major enantiomer tr=6.70min,minor enantiomer tr=8.03min.
Figure BDA0001639231620000241
实施例19:
(E)-3-methyl-2-(2-((E)-2-(phenylsulfonyl)vinyl)naphthalen-1-yl)cyclohex-2-en-1-oneO-methyl oxime的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),苯基乙烯基砜(0.1514g,0.9mmol),醋酸钯(0.0067g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至80℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为87%.
1H NMR(400MHz,CDCl3)δ7.92(s,1H),7.90(s,1H),7.85-7.68(m,4H),7.66-7.38(m,6H),6.83(d,J=15.5Hz,1H),3.43(s,3H),2.86-2.65(m,2H),2.43(t,J=5.9Hz,2H),2.02(dt,J=12.8,6.3Hz,2H),1.35(s,3H).
13C NMR(101MHz,CDCl3)δ156.24(s),145.55(s),142.30(s),141.06(s),139.35(s),134.39(s),133.15(s),129.25(s),128.27(s),128.12(s),127.69(d,J=5.0Hz),127.37(s),127.13(s),126.71(d,J=8.7Hz),122.63(s),61.59(s),31.82(s),22.86(s),21.63(s),21.11(s).
HRMS(ESI)m/z:[M+H]+calculated for C26H26NO3S:432.1628,found:432.1618Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=75∶25,0.8mL/min,254nm,99%ee);major enantiomer tr=8.03min,minor enantiomer tr=9.24min.
Figure BDA0001639231620000242
实施例20:
(E)-3-(1-((E)-6-(methoxyimino)-2-methylcyclohex-1-en-1-yl)naphthalen-2-yl)acrylalde hyde的合成
向25mL反应管中加入3-甲基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),丙烯醛(0.0158g,0.3mmol),四乙腈四氟硼酸钯(0.0067g,0.015mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),苯醌(0.0324g,0.9mmol),再加入3mL甲醇。
将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为16%.
1H NMR(400MHz,CDCl3)δ9.66(d,J=7.7Hz,1H),7.89-7.78(m,2H),7.78-7.69(m,2H),7.59(d,J=15.9Hz,1H),7.51(t,J=7.1Hz,1H),7.44(t,J=7.4Hz,1H),6.76(dd,J=15.9,7.7Hz,1H),3.50(s,3H),2.88-2.64(m,2H),2.45(t,J=5.8Hz,2H),2.00(dt,J=12.9,6.2Hz,2H),1.39(s,3H).
13C NMR(101MHz,CDCl3)δ194.18(s),156.08(s),151.96(s),145.39(s),139.37(s),134.58(s),132.24(s),129.68(s),128.90(s),128.16(s),127.74(s),127.20(s),127.00(s),126.79(s),126.63(s),122.61(s),61.68(s),31.85(s),22.87(s),21.52(s),21.18(s).
HRMS(ESI)m/z:[M+H]+calculated for C21H22NO2:320.1645,found:320.1647Enantiomeric excess was determined by HPLC with a Chiralpak IB column(hexanes:2-propanol=98∶2,0.8mL/min,254nm,99.9%ee);major enantiomer tr=12.03min,minor enantiomer tr=13.66min.
Figure BDA0001639231620000251
实施例21:
Diethyl((E)-2-(1-((E)-3-(methoxyimino)-3,4,5,6-tetrahydro-[1,1′-biphenyl]-2-yl)naphth alen-2-yl)vinyl)phosphonate的合成
向25mL反应管中加入3-苯基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),乙烯基膦酸二乙酯(0.1477g,0.9mmol),醋酸钯(0.0067g,0.03mmol),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),醋酸银(0.1502g,0.9mmol),再加入3mL甲醇。将反应管移至70℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为72%.
1H NMR(400MHz,CDCl3)δ7.88-7.82(m,1H),7.73-7.69(m,1H),7.63(dd,J=15.9,7.0Hz,2H),7.49(d,J=8.7Hz,1H),7.45-7.38(m,2H),6.92-6.83(m,3H),6.79(d,J=6.7Hz,2H),6.07(t,J=18.2Hz,1H),4.18-4.02(m,4H),3.51(s,3H),2.89-2.78(m,3H),2.71(dt,J=17.4,5.5Hz,1H),2.13(td,J=12.6,6.5Hz,2H),1.36(t,J=7.0Hz,6H).
13C NMR(101MHz,CDCl3)δ155.25(s),146.85(s),140.70(s),136.57(s),132.57(s),126.88(s),126.44(s),126.35(s),126.17(s),125.71(s),125.29(s),125.17(s),121.05(s),60.73(s),31.33(s),22.14(s),20.45(s),15.42(d,J=6.5Hz).
HRMS(ESI)m/z:[M+H]+calculated for C29H33NO4P:490.2142,found:490.2157Enantiomeric excess was determined by HPLC with a Chiralpak IC column(hexanes:2-propanol=85∶15,0.8mL/min,254nm,97.5%ee);major enantiomer tr=13.11min,minor enantiomer tr=16.16min.
Figure BDA0001639231620000261
实施例22:
(E)-2-(2-((E)-2-(phenylsulfonyl)vinyl)naphthalen-1-yl)-5,6-dihydro-[1,1′-biphenyl]-3(4H)-one O-methyl oxime的合成
向25mL反应管中加入3-苯基-2-萘基-1-环己烯基肟(0.0795g,0.3mmol),苯基乙烯基砜(0.1514g,0.9mmol),四乙腈四氟硼酸钯(0.0134g,0.03mmol)),N-乙酰-L-丙氨酸(0.0079g,0.06mmol),碳酸银(0.2482g,0.9mmol),再加入3mL甲醇。将反应管移至40℃油浴反应48小时。快速柱层析后减压浓缩得产物,产率为30%.
1H NMR(400MHz,CDCl3)δ7.92(s,1H),7.90(s,1H),7.87(d,J=9.3Hz,1H),7.82(d,J=15.4Hz,1H),7.72-7.67(m,1H),7.64-7.52(m,4H),7.44(p,J=6.8Hz,2H),7.31(d,J=8.7Hz,1H),6.85(dt,J=24.1,7.1Hz,3H),6.73(d,J=7.2Hz,2H),6.62(d,J=15.4Hz,1H),3.47(s,3H),2.86(ddd,J=14.4,8.1,5.3Hz,3H),2.71(dt,J=11.6,5.5Hz,1H),2.25-2.07(m,2H).
13C NMR(101MHz,CDCl3)δ156.35(s),148.53(s),142.14(s),141.50(s),141.10(s),139.29(s),133.21(d,J=6.1Hz),129.25(s),128.45(s),128.16(s),128.02(s),127.73(s),127.66(s),127.52(s),127.41(s),126.99-126.84(m),126.67(s),126.49(s),122.45(s),61.83(s),32.39(s),23.16(s),21.48(s).
HRMS(ESI)m/z:[M+H]+calculated for C31H28NO3S:494.1784,found:494.1780Enantiomeric excess was determined by HPLC with a Chiralpak AD-Hcolumn(hexanes:2-propanol=80∶20,0.8mL/min,254nm,99.9%ee);major enantiomertr=8.28min,minor enantiomer tr=10.78min.
Figure BDA0001639231620000271

Claims (7)

1.一种轴手性芳基烯烃化合物的合成方法,其特征在于,以3-烷基-2-芳基-1-环己烯基肟和烯烃为反应物,以钯盐与配体形成的络合物为催化剂前体,在氧化剂存在下,在反应介质中,在空气中于40-80℃下反应10-48 h后分离出产物,得到轴手性芳基烯烃,
所述烯烃选自共轭或缺电子烯烃,
所述反应介质选自甲醇、四氢呋喃、特戊醇、甲苯、六氟异丙醇、乙二醇二甲醚中一种或几种;
所述钯盐选自醋酸钯、二(乙酰丙酮)钯、三氟乙酸钯、四乙腈四氟硼酸钯、氯化钯中一种,
所述配体选自具有以下结构式的化合物中一种:
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所述氧化剂选自醋酸银、苯醌、氧气、氧化银、碳酸银中一种,
所述轴手性芳基烯烃化合物的结构式如(1)表示:
Figure DEST_PATH_IMAGE009
其中,R1选自烷基,芳基中一种,R2选自烷基,芳基中一种;R3选自烷基,芳基,卤素中一种;R4选自酯基,芳基,醛基,羰基,磺酰基,磷酸酯中一种。
2.根据权利要求1所述的一种轴手性芳基烯烃化合物的合成方法,其特征在于,3-烷基-2-芳基-1-环己烯基肟选自摩尔浓度为0.1-1 mol/L的溶液。
3.根据权利要求1所述的一种轴手性芳基烯烃化合物的合成方法,其特征在于,烯烃的使用量与3-烷基-2-芳基-1-环己烯基肟的摩尔比为1.1-3:1。
4.根据权利要求1所述的一种轴手性芳基烯烃化合物的合成方法,其特征在于,钯盐使用量为3-烷基-2-芳基-1-环己烯基肟摩尔量的1~10%。
5.根据权利要求1所述的一种轴手性芳基烯烃化合物的合成方法,其特征在于,配体使用量为3-烷基-2-芳基-1-环己烯基肟摩尔量的1~20%。
6.根据权利要求1所述的一种轴手性芳基烯烃化合物的合成方法,其特征在于,氧化剂与3-烷基-2-芳基-1-环己烯基肟的摩尔比大于1.1:1。
7.根据权利要求1所述的一种轴手性芳基烯烃化合物的合成方法,其特征在于,R1选自甲基、叔丁基、苯基中一种;R2选自甲基、苯基中一种;R3选自甲基、甲氧基、羟基、苯基、氟、氯、溴中一种;R4选自甲酯、乙酯、丁酯、叔丁酯、对甲氧基苯基、对硝基苯基、对氟苯基、对氯苯基、对溴苯基、苯基砜、磷酸二甲酯、磷酸二乙酯中一种。
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