CN108675937B - 一种α-氨基酸的合成方法 - Google Patents

一种α-氨基酸的合成方法 Download PDF

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CN108675937B
CN108675937B CN201810437011.4A CN201810437011A CN108675937B CN 108675937 B CN108675937 B CN 108675937B CN 201810437011 A CN201810437011 A CN 201810437011A CN 108675937 B CN108675937 B CN 108675937B
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樊新元
龚旭
马梦月
汪锐
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Abstract

本发明公开了一种α‑氨基酸的合成方法,属于有机化学、药物化学以及蛋白质化学领域,该方法使用太阳光或者可见光为能量来源,外加电子供体,以二氧化碳和亚胺化合物为原料,常温常压的条件下合成α‑氨基酸的方法。原料便宜易得;反应条件极度温和;使用常压二氧化碳气体,避免了昂贵且危险的高压反应装置;可使用清洁且无限的太阳光作为能源来源;反应完成后,产物自动从体系中以固体形式析出,简单过滤即可得到目标产物,避免了后续纯化操作。

Description

一种α-氨基酸的合成方法
技术领域
本发明涉及有机化学、药物化学以及蛋白质化学领域,特别涉及通过有机合成手段制备 α-氨基酸的方法。
背景技术
α-氨基酸是构成蛋白质的基本骨架,其在蛋白质合成领域、有机化学领域、药物化学领 域等多个领域具有非常重要的地位。而目前常用的化学合成α-氨基酸的方法大多具有各种 缺点,例如氰化物的方法需要使用剧毒的原料,其它方法所使用的原料价格昂贵。
使用二氧化碳作为原料合成α-氨基酸将是非常具有前景的方法。然而目前现有的使用 二氧化碳的方法都需要使用苛刻的反应条件,例如高压气体、高温反应等,使大规模生产很 难进行以及造成大量能源消耗。
本发明提供一种以太阳光或者可见光为能量来源,以二氧化碳和亚胺化合物为原料,在 常温常压的条件下合成α-氨基酸的方法。本方法具有反应条件温和(常温常压)、使用清 洁能源(太阳光或可见光)、反应原料廉价(二氧化碳和亚胺)、产物分离简单(过滤)等优势,因此具有极为广阔的应用前景。
由于其重要的作用,化学家很早就开始研究探索α-氨基酸的合成。早在1850年,德国 化学家Streker等人使用亚胺为原料,氰化钾作为亲核试剂进攻亚胺生成中间体α-氰基胺。 该中间体在高温强酸条件下水解生成α-氨基酸。该方法作为最经典的合成α-氨基酸的方法 使用至今。但其缺点是必须使用剧毒物质氰化钾,以及反应条件比较苛刻。(JustusLiebigs Ann.Chem.1850,75.27)
Figure BDA0001653434930000011
亚胺是最理想的氨基源,二氧化碳是最理想的羧基源。因此使用亚胺和二氧化碳直接合 成氨基酸就成为最理想的方法。而难点在于亚胺和二氧化碳都是亲电试剂,很难使用传统方 法将二者偶联。因此人们开始尝试将亚胺转化成为亲核中间体。2011年日本人Sato报道了 将亚胺和金属锡试剂混合会生成α-锡胺中间体,该中间体是亲核的,可以进攻二氧化碳从 而生成α-氨基酸。随后同一个小组发现硅硼试剂同样可以进行类似转化,来合成α-氨基酸。 但其缺点是需要使用当量甚至超当量的金属锡试剂或者硅硼试剂,并且必须使用高压二氧化 碳以及高温等苛刻的反应条件。(Angew.Chem.Int.Ed.2011,50,1393,Org.Lett.2012,14, 6202,Chem.Eur.J.2013,19,1123)
Figure RE-GDA0001780081940000021
(X=Sn or Si)
随后,在2013年,Radosevich等人报道了使用金属镁将亚胺转化成α-镁胺中间体,同 样可以进攻二氧化碳生成α-氨基酸。其缺点是需要使用超过当量的金属镁,以及高压二氧 化碳气体。(Chem.Commun.2013,49,5040)
Figure BDA0001653434930000022
2016年,Lu等人使用强碱将丙烯胺转化成其负离子中间体,该中间体作为亲核试剂可 以进攻二氧化碳。其缺点是只能使用丙烯胺类原料,而且条件非常苛刻,必须使用强碱和高 压二氧化碳。(Chem.Eur.J.2016,22,17156-17159)
Figure BDA0001653434930000023
发明内容
我们发明了一种极具工业生产优势的α-氨基酸的合成方法。该方法使用太阳光或者可 见光为能量来源,外加电子供体,以二氧化碳和亚胺化合物为原料,常温常压的条件下合成 α-氨基酸的方法。
该方法的反应通式如下:
Figure BDA0001653434930000024
所述的亚胺结构式如下:
Figure BDA0001653434930000025
Figure BDA0001653434930000031
其中,Ar基团包括但不限于芳基、杂原子芳基等化学基团,例如苯基,吡啶,呋喃,噻吩及其类似物。所述的Ar为苯基,呋喃,噻吩。所述的苯基取代基不同或相同,取代基 为氯原子,氟原子,溴原子,甲基,乙基,正丙基,异丙基,甲氧基,三氟甲基,氰基,羟 基,氨基,硝基,羧基,酯基等,相同的取代基取代位置不同。
R1和R2基团包括但不限于氢、烷基、芳基、杂原子芳基等化学基团,例如甲基、乙基、丙基、异丙基、丁基、异丁基、新丁基等各类烷基,苯基,吡啶,呋喃,噻吩及其类似 物等各类芳基。
hv可为各种光源,包括但不限于人造可见光源、太阳光等。
PC可为多种光敏催化剂,包括但不限于光敏铱催化剂,钌催化剂等,催化剂结构如下:
Figure BDA0001653434930000032
对于钌催化剂,X可为碳或者氮。对于铱催化剂,R3,R4,R5,R6取代基可为氢,氟,叔丁 基等取代基。使用这些催化剂均可得到目标产物,其中本发明选择的最优催化剂是R3,R4和R5为氢,R6为叔丁基的铱催化剂,命名为Ir-7。
具体催化剂结构如下:
Figure BDA0001653434930000041
Figure BDA0001653434930000051
电子供体可为多种电子供体,包括但不限于各种胺类化合物,例如二甲胺,三甲胺,二 乙胺,三乙胺,二异丙基甲胺,二异丙基乙胺,二环己基甲胺,二环己基乙胺,二芳基胺, 三芳基胺等。
溶剂为各种常用有机溶剂,包括但不限于乙腈,乙醇,乙酸乙酯,甲苯,DMF等。
经过优化条件,本发明所使用的最优催化剂为联吡啶铱催化剂(Ir-7),最优电子供体 是二环己基甲胺,最优溶剂是乙腈,光源是蓝色LED光源或者太阳光。
本发明在对亚胺和二氧化碳的反应研究的基础上,开发了使用可见光(太阳光)作为能 量来源,辅以价格便宜的电子供体二环己基甲胺,最终成功实现了常温常压条件合成氨基酸 化合物的方法。本发明的优势主要表现在以下几个方面:原料便宜易得;反应条件极度温和; 使用常压二氧化碳气体,避免了昂贵且危险的高压反应装置;可使用清洁且无限的太阳光作 为能源来源;反应完成后,产物自动从体系中以固体形式析出,简单过滤即可得到目标产物, 避免了后续纯化操作;极易放大生产,我们已成功实现10克级的反应测试。
附图说明
图1为实施例中4a的H谱图
图2为实施例中4a的C谱图
图3为实施例中4b的H谱图
图4为实施例中4b的C谱图
图5为实施例中4c的H谱图
图6为实施例中4c的C谱图
图7为实施例中4d的H谱图
图8为实施例中4d的C谱图
图9为实施例中4e的H谱图
图10为实施例中4e的C谱图
图11为实施例中4f的H谱图
图12为实施例中4f的C谱图
图13为实施例中4g的H谱图
图14为实施例中4g的C谱图
图15为实施例中4h的H谱图
图16为实施例中4h的C谱图
图17为实施例中4i的H谱图
图18为实施例中4i的C谱图
图19为实施例中4j的H谱图
图20为实施例中4j的C谱图
图21为实施例中4k的H谱图
图22为实施例中4k的C谱图
图23为实施例中4l的H谱图
图24为实施例中4l的C谱图
图25为反应装置以及流程示意图。A:反应前为澄清透明液体。B:半小时太阳光照的反应 装置。B`:反应半小时后,反应液变浑浊。C:6小时太阳光照的反应装置。C`:反应6小时 后,可见明显的沉淀析出。D:简单过滤后得到目标产物。
具体实施方式
一、人造可见光源促使的以二氧化碳为原料的α-氨基酸的合成。
Figure BDA0001653434930000061
亚胺(0.2毫摩尔),催化剂(0.9毫克,0.5mol%),二环己基甲胺(85.6微升,0.4 毫摩尔)溶解在1毫升乙腈中。搅拌的条件下通入二氧化碳常压气体。该反应体系在人造可 见光源(11.52W蓝色LED灯)的照射下反应10个小时。反应结束后,目标产物以白色沉淀 的形式析出。过滤、干燥除去溶剂后得到白色固体。经过分析,该白色固体为目标产物α- 氨基酸的二环己基氨盐。
1.人造可见光源促使的以Ir-7为催化剂以二氧化碳为原料的α-氨基酸的合成
实施例1
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)。
Figure BDA0001653434930000071
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺(54.2毫克,0.2毫摩尔),催 化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白 色固体,熔点为154.9-155.5℃(90.8毫克,产率为91%)。
1H NMR(400MHz,CDCl3):δ7.60(d,J=7.2Hz,4H),7.31(d,J=7.0Hz,2H),7.28-7.22(m,6H),7.21-7.14(m,3H),3.31(s,2H),2.66(t,J=10.8Hz,2H,Cy),1.85-1.43(m,10H, Cy),1.34-0.81(m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23,126.57,126.11,74.16,52.25(Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm;
IR(thin film):2928,2853,1632,1360,1347,1117,1098,702cm-1;
HRMS(2-(苄基氨基)-2,2-二苯基乙酸)C21H20NO2 +计算量为318.1494,实测量为318.1492[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为182.1907 [M+H]+
实施例2
2-((2-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4b)
Figure BDA0001653434930000072
按照典型实验过程,用酮亚胺N-(2-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩 尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为138.5-139.6℃(94.9毫克,产率为89%)。
1H NMR(400MHz,CDCl3):δ7.62(d,J=7.2Hz,4H),7.53(dd,J=7.6,1.7Hz,1H),7.30 -7.22(m,5H),7.22-7.09(m,4H),3.40(s,2H),2.67(t,J=10.9Hz,2H,Cy),1.81-1.28(m, 10H,Cy),1.20-0.70(m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ176.85,144.24,139.34,133.57,129.96,129.23,128.97,127.54,127.08,126.58,125.96,73.90,52.09(cy),45.89,28.61(cy),24.97(cy),24.71(cy) ppm.ppm;
IR(thin film):2940,1626,1566,1445,1359,754,709,699cm-1;
HRMS(2-((2-氯苄基)氨基)-2,2-二苯基乙酸)C21H19C1NO2 +计算量352.1104,实 测量为352.1102[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为 182.1906[M+H]+
实施例3
2-((3-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4c)
Figure BDA0001653434930000081
按照典型实验过程,用酮亚胺N-(3-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩 尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为148.0-149.6℃(96毫克,产率为90%)。
1H NMR(400MHz,CDCl3):δ7.58(d,J=7.4Hz,4H),7.36-7.11(m,10H),3.27(s,2H), 2.66(brs,2H,Cy),1.84-1.45(m,10H,Cy),1.16-0.93(m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ176.95,144.33,144.05,133.98,129.41(x2),128.42, 127.28,126.67,126.59,126.21,74.08,52.28(Cy),48.39,28.90(Cy),25.17(Cy),24.85(Cy)ppm;
IR(thin film):2935,1627,1551,1447,1358,1349,810,705cm-1;
HRMS(2-((3-氯苄基)氨基)-2,2-二苯基乙酸)C21H19C1NO2 +计算量为352.1104,实测量为352.1105[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为 182.1906[M+H]+
实施例4
2-((4-氟苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4d)
Figure BDA0001653434930000082
按照典型实验过程,用酮亚胺N-(4-氟苄基)-1,1-二苯基甲亚胺(57.9毫克,0.2毫摩 尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为155.7-156.3℃(67.2毫克,产率为65%)。1H NMR(400MHz,CDCl3): δ7.59(d,J=7.9Hz,4H),7.22(dt,J=29.1,7.2Hz,8H),6.92(t,J=8.4Hz,2H),3.26(s,2H),2.66(brs,2H,Cy),1.87-1.36(m,10H,Cy),1.02(d,J=54.4Hz,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.98,161.76(d,J=243.7Hz),144.39,137.50,129.89(d,J=7.8Hz),129.42,127.24,126.18,114.87(d,J=21.1Hz),74.17,52.26(Cy),48.09,28.85(Cy),25.14(Cy), 24.86(Cy)ppm.IR(thin film):2931,1629,1507,1361,1350,1219,759,702cm-1;HRMS(2- ((4-氟苄基)氨基)-2,2-二苯基乙酸)C21H19FNO2 +计算量为336.1400,实测值为336.1403 [M+H]+HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1908[M+H]+
实施例5
2,2-二苯基-2-((4-(三氟甲基)苄基)氨基)乙酸二环己基胺盐(4e)
Figure BDA0001653434930000091
按照典型实验过程,用酮亚胺1,1-二苯基-N-(4-(三氟甲基)苄基)甲亚胺(67.9毫克,0.2毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4 毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目 标产物,该产物为白色固体,熔点为138.2-140.1℃(74.8毫克,产率为66%)。1H NMR(400 MHz,CDCl3):δ7.58(d,J=7.4Hz,4H),7.50(d,J=8.2Hz,2H),7.42(d,J=8.1Hz,2H),7.26 (t,J=7.5Hz,4H),7.19(t,J=7.2Hz,2H),3.36(s,2H),2.66(t,J=10.5Hz,2H,Cy),1.86-1.40(m,10H,Cy),1.26-0.81(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.96, 146.07,144.25,129.40,128.77(q,J=31.8Hz),128.53,127.31,126.29,125.07(q,J=3.6Hz),124.46(q,J=273.0Hz),74.13,52.32(Cy),48.41,28.80(Cy),25.11(Cy),24.83(Cy)ppm.IR (thin film):2929,2857,1630,1362,1326,1123,1066,705cm-1;HRMS(2,2-二苯基-2-((4- (三氟甲基)苄基)氨基)乙酸)C22H19F3NO2 +计算量为386.1368,实测值为386.1363 [M+H]+。HRMS(二环己胺)C12H24N+计算值为182.1909,实测值为182.1906[M+H]+
实施例6
2-((4-甲基苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4f)
Figure BDA0001653434930000101
按照典型实验过程,用酮亚胺N-(4-甲基苄基)-1,1-二苯基甲亚胺(57.1毫克,0.2毫摩 尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为139.6-140.3℃(87.2毫克,产率为85%)。1H NMR(400MHz,CDCl3): δ7.60(d,J=7.2Hz,4H),7.30-7.13(m,8H),7.05(d,J=7.8Hz,2H),3.27(s,2H),2.66(t,J=10.8Hz,2H,Cy),2.30(s,3H),1.81-1.43(m,10H,Cy),1.23-0.82(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.97,144.56,138.72,136.03,129.45,128.87,128.41,127.20,126.08,74.21,52.29(Cy),48.53,28.94(Cy),25.18(Cy),24.87(Cy),21.21ppm.IR(thinfilm): 2942,1629,1489,1456,1360,802,750,706cm-1;HRMS(2-((4-甲基苄基)氨基)-2,2- 二苯基乙酸)C22H22NO2 +计算量为332.1651,实测值为332.1650[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
实施例7
2-((4-(叔丁基)苄基)氨基)-2,2-二苯基乙酸二环己基胺盐(4g)
Figure BDA0001653434930000102
按照典型实验过程,用酮亚胺N-(4-(叔丁基)苄基)-1,1-二苯基甲亚胺(65.5毫克, 0.2毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产 物,该产物为白色固体,熔点为164.1-165.0℃(79.9毫克,产率为72%)。1H NMR(400MHz,CDCl3):δ7.60(d,J=7.8Hz,4H),7.29-7.20(m,8H),7.17(t,J=7.2Hz,2H),3.27(s,2H),2.81-2.51(m,2H,Cy),1.94-1.41(m,10H,Cy),1.29(s,9H),1.16-0.93(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ177.05,149.36,144.49,138.79,129.45,128.16,127.22,126.08,125.09,74.15,52.22(Cy),48.33,34.51,31.53,28.88(Cy),25.16(Cy),24.87(Cy)ppm. IR(thin film):2933,2856,1633,1514,1444,1362,729,699cm-1;HRMS(2-((4-(叔丁基) 苄基)氨基)-2,2-二苯基乙酸)C25H28NO2+计算量为374.2120,实测值为374.2114[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
实施例8
2,2-二苯基-2-((吡啶-2-基甲基)氨基)乙酸二环己胺盐(4h)
Figure BDA0001653434930000111
按照典型实验过程,用酮亚胺1,1-二苯基-N-(吡啶-2-基甲基)甲亚胺(54.5毫克,0.2 毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为136.5-137.1℃(91.9毫克,产率为92%)。1H NMR(400MHz,CDCl3):δ8.65-8.30(m,1H),7.59(d,J=8.5Hz,5H),7.33-7.06(m,8H),3.48(s,2H),2.69(t,J=10.6 Hz,2H,Cy),1.80-1.51(m,10H,Cy),1.19-0.92(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.83,160.98,148.85,144.08,136.22,129.54,127.25,126.17,122.39,121.54,74.13, 52.26(Cy),50.09,29.01(Cy),25.13(Cy),24.89(Cy)ppm.IR(thin film):2927,2852,1624,1455, 1446,1117,1098,698cm-1;HRMS(2,2-二苯基-2-((吡啶-2-基甲基)氨基)乙酸) C20H19N2O2 +计算量为319.1447,实测值为319.1448[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
实施例9
2,2-二苯基-2-((吡啶-3-基甲基)氨基)乙酸二环己胺盐(4i)
Figure BDA0001653434930000112
按照典型实验过程,用酮亚胺1,1-二苯基-N-(吡啶-3-基甲基)甲亚胺(54.5毫克,0.2 毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为132.2-132.8℃(77.0毫克,产率为77%)。1H NMR(400MHz,CDCl3):δ8.50(d,J=1.6Hz,1H),8.44(dd,J=4.8,1.6Hz,1H),7.77-7.50(m,5H),7.31-7.16(m,7H), 3.31(s,2H),2.67(brs,2H,Cy),1.83-1.52(m,10H,Cy),1.17-0.93(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.90,149.95,148.05,144.17,137.16,136.11,129.41,127.31,126.29,123.24,74.15,52.28(Cy),46.25,28.91(Cy),25.13(Cy),24.83(Cy)ppm.IR (thin film):2932,1632,1448,1360,734,714,702,487cm-1;HRMS(2,2-二苯基-2-((吡啶-3- 基甲基)氨基)乙酸)C20H19N2O2 +计算量为319.1447,实测值为319.1445[M+H]+。HRMS (二环己胺)C12H24N+计算量为182.1909,实测值为182.1905[M+H]+
实施例10
2,2-二苯基-2-((噻吩-2-基甲基)氨基)乙酸二环己胺盐(4j)
Figure BDA0001653434930000121
按照典型实验过程,用酮亚胺1,1-二苯基-N-(噻吩-2-基甲基)甲亚胺(55.5毫克,0.2 毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为141.6-141.9℃(90.9毫克,产率为90%)。1H NMR(400MHz,CDCl3):δ7.60(d,J=7.1Hz,4H),7.28-7.09(m,7H),6.94-6.77(m,2H),3.48(s,2H),2.70(brs,2H,Cy),1.80-1.52(m,10H,Cy),1.23-0.94(m,10H,Cy)ppm;13C{1H}NMR(100MHz, CDCl3):δ176.70,145.93,144.38,129.36,127.26,126.49,126.14,123.94,123.68,73.94,52.24(Cy),43.83,28.95(Cy),25.19(Cy),24.89(Cy)ppm.IR(thin film):2933,2855,1627,1548,1447, 1359,753,699cm-1;HRMS(2,2-二苯基-2-((噻吩-2-基甲基)氨基)乙酸)C19H18NO2S+计 算量为324.1058,实测值为324.1059[M+H]+。HRMS(二环己胺)C12H24N+计算量为 182.1909,实测值为182.1908[M+H]+
实施例11
2-((呋喃-2-基甲基)氨基)-2,2-二苯基乙酸二环己基胺盐(4k)
Figure BDA0001653434930000122
按照典型实验过程,用酮亚胺N-(呋喃-2-基甲基)-1,1-二苯基甲亚胺(52.3毫克,0.2 毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为153.8-154.0℃(92.8毫克,产率为95%)。1H NMR(400MHz,CDCl3):δ7.58(d,J=7.2Hz,4H),7.40-7.02(m,7H),6.25(dd,J=3.1,1.9Hz,1H),6.17-5.95(m,1H), 3.27(s,2H),2.70(brs,2H),1.80-1.50(m,10H,Cy),1.20-0.94(m,10H,Cy)ppm;13C{1H} NMR(100MHz,CDCl3):δ176.83,155.34,144.05,141.24,129.46,127.25,126.17,110.15,106.00,73.84,52.21(Cy),41.71,28.85(Cy),25.13(Cy),24.87(Cy)ppm.IR(thinfilm):2940, 2857,1625,1566,1447,1359,720,697cm-1;HRMS(2-((呋喃-2-基甲基)氨基)-2,2-二 苯基乙酸)C19H18NO3 +计算量为308.1287,实测值为308.1285[M+H]+。HRMS(二环己胺) C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
实施例12
2-(苄基氨基)-2-苯基-2-(对甲苯基)乙酸二环己基胺盐(41)
Figure BDA0001653434930000131
按照典型实验过程,用酮亚胺N-苄基-1-苯基-1-(对甲苯基)甲亚胺(57.1毫克,0.2 毫摩尔),催化剂铱-7(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为144.0-145.1℃(77.9毫克,产率为76%)。1H NMR(400MHz,CDCl3):δ7.60(d,J=7.9Hz,2H),7.49(d,J=7.8Hz,2H),7.37-7.13(m,8H),7.06(d,J=7.7Hz,2H),3.29(d,J=4.3Hz,2H),2.65(brs,2H,Cy),2.31(s,3H),1.77-1.47(m,10H,Cy),1.18-0.85(m, 10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ177.14,144.64,141.83,141.38,135.42,129.43,129.36,128.51,128.16,127.94,127.19,126.54,126.03,73.91,52.16(Cy),48.78,28.85 (Cy),25.10(Cy),24.87(Cy),21.15ppm.IR(thin film):2936,2858,1633,1449,1359,1346,775, 700cm-1;HRMS(2-(苄基氨基)-2-苯基-2-(对甲苯基)乙酸)C22H22NO2 +计算量为332.1651, 实测值为332.1649[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为 182.1907[M+H]+
2.人造可见光源促使的以Ir-1为催化剂以二氧化碳为原料的α-氨基酸的合成
Figure BDA0001653434930000132
实施例13
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)
Figure BDA0001653434930000133
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺(54.2毫克,0.2毫摩尔),催 化剂铱-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白 色固体,熔点为154.8-155.6℃(70.8毫克,产率为71%)。1H NMR(400MHz,CDCl3):δ7.60 (d,J=7.2Hz,4H),7.31(d,J=7.0Hz,2H),7.28-7.22(m,6H),7.21-7.14(m,3H),3.31(s, 2H),2.66(t,J=10.8Hz,2H,Cy),1.85-1.43(m,10H,Cy),1.34-0.81(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23, 126.57,126.11,74.16,52.25(Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm.IR(thin film):2928,2853,1632,1360,1347,1117,1098,702cm-1;HRMS(2-(苄基氨基)-2,2-二苯基乙酸)C21H20NO2+计算量为318.1494,实测量为318.1493[M+H]+.HRMS(二环己胺)C12H24N+计 算量为182.1909,实测量为182.1908[M+H]+
实施例14
2-((2-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4b)
Figure BDA0001653434930000141
按照典型实验过程,用酮亚胺N-(2-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩 尔),催化剂铱-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为138.7-139.6℃(68.2毫克,产率为64%)。1H NMR(400MHz,CDCl3): δ7.62(d,J=7.2Hz,4H),7.53(dd,J=7.6,1.7Hz,1H),7.30-7.22(m,5H),7.22-7.09(m,4H),3.40(s,2H),2.67(t,J=10.9Hz,2H,Cy),1.81-1.28(m,10H,Cy),1.20-0.70(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.85,144.24,139.34,133.57,129.96,129.23,128.97,127.54,127.08,126.58,125.96,73.90,52.09(cy),45.89,28.61(cy),24.97(cy),24.71(cy) ppm.ppm.IR(thin film):2940,1626,1566,1445,1359,754,709,699cm-1;HRMS(2-((2- 氯苄基)氨基)-2,2-二苯基乙酸)C21H19ClNO2+计算量352.1104,实测量为352.1105 [M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为182.1907[M+H]+
实施例15
2-((3-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4c)
Figure BDA0001653434930000151
按照典型实验过程,用酮亚胺N-(3-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩尔), 催化剂铱-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化 碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为148.3-149.2℃(57.6毫克,产率为54%)。1H NMR(400MHz,CDCl3):δ 7.58(d,J=7.4Hz,4H),7.36-7.11(m,10H),3.27(s,2H),2.66(brs,2H,Cy),1.84-1.45(m, 10H,Cy),1.16-0.93(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.95,144.33, 144.05,133.98,129.41(x2),128.42,127.28,126.67,126.59,126.21,74.08,52.28(Cy),48.39,28.90(Cy),25.17(Cy),24.85(Cy)ppm.IR(thin film):2935,1627,1551,1447,1358,1349,810, 705cm-1;HRMS(2-((3-氯苄基)氨基)-2,2-二苯基乙酸)C21H19ClNO2 +计算量为352.1104, 实测量为352.1103[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为 182.1907[M+H]+
3.人造可见光源促使的以Ir-3为催化剂以二氧化碳为原料的α-氨基酸的合成
Figure BDA0001653434930000152
实施例16
2-((4-氟苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4d)
Figure BDA0001653434930000153
按照典型实验过程,用酮亚胺N-(4-氟苄基)-1,1-二苯基甲亚胺(57.9毫克,0.2毫摩 尔),催化剂铱-3(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为155.3-156.8℃(71.3毫克,产率为69%)。1H NMR(400MHz,CDCl3): δ7.59(d,J=7.9Hz,4H),7.22(dt,J=29.1,7.2Hz,8H),6.92(t,J=8.4Hz,2H),3.26(s,2H),2.66(brs,2H,Cy),1.87-1.36(m,10H,Cy),1.02(d,J=54.4Hz,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.98,161.76(d,J=243.7Hz),144.39,137.50,129.89(d,J=7.8Hz),129.42,127.24,126.18,114.87(d,J=21.1Hz),74.17,52.26(Cy),48.09,28.85(Cy),25.14(Cy),24.86(Cy)ppm.IR(thin film):2931,1629,1507,1361,1350,1219,759,702cm-1;HRMS(2- ((4-氟苄基)氨基)-2,2-二苯基乙酸)C21H19FNO2 +计算量为336.1400,实测值为336.1401 [M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1908[M+H]+
实施例17
2,2-二苯基-2-((4-(三氟甲基)苄基)氨基)乙酸二环己基胺盐(4e)
Figure BDA0001653434930000161
按照典型实验过程,用酮亚胺1,1-二苯基-N-(4-(三氟甲基)苄基)甲亚胺(67.9毫克,0.2毫摩尔),催化剂铱-3(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4 毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目 标产物,该产物为白色固体,熔点为138.5-140.5℃(63.8毫克,产率为56%)。1H NMR(400 MHz,CDCl3):δ7.58(d,J=7.4Hz,4H),7.50(d,J=8.2Hz,2H),7.42(d,J=8.1Hz,2H),7.26 (t,J=7.5Hz,4H),7.19(t,J=7.2Hz,2H),3.36(s,2H),2.66(t,J=10.5Hz,2H,Cy),1.86-1.40(m,10H,Cy),1.26-0.81(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.96, 146.07,144.25,129.40,128.77(q,J=31.8Hz),128.53,127.31,126.29,125.07(q,J=3.6Hz),124.46(q,J=273.0Hz),74.13,52.32(Cy),48.41,28.80(Cy),25.11(Cy),24.83(Cy)ppm.IR (thin film):2929,2857,1630,1362,1326,1123,1066,705cm-1;HRMS(2,2-二苯基-2-((4- (三氟甲基)苄基)氨基)乙酸)C22H19F3NO2 +计算量为386.1368,实测值为386.1366 [M+H]+。HRMS(二环己胺)C12H24N+计算值为182.1909,实测值为182.1908[M+H]+
实施例18
2-((4-甲基苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4f)
Figure BDA0001653434930000162
按照典型实验过程,用酮亚胺N-(4-甲基苄基)-1,1-二苯基甲亚胺(57.1毫克,0.2毫摩 尔),催化剂铱-3(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为139.5-140.7℃(47,2毫克,产率为46%)。1H NMR(400MHz,CDCl3): δ7.60(d,J=7.2Hz,4H),7.30-7.13(m,8H),7.05(d,J=7.8Hz,2H),3.27(s,2H),2.66(t,J=10.8Hz,2H,Cy),2.30(s,3H),1.81-1.43(m,10H,Cy),1.23-0.82(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.97,144.56,138.72,136.03,129.45,128.87,128.41,127.20,126.08,74.21,52.29(Cy),48.53,28.94(Cy),25.18(Cy),24.87(Cy),21.21ppm.IR(thinfilm): 2942,1629,1489,1456,1360,802,750,706cm-1;HRMS(2-((4-甲基苄基)氨基)-2,2- 二苯基乙酸)C22H22NO2 +计算量为332.1651,实测值为332.1650[M+H]+。HRMS(二环己 胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
4.人造可见光源促使的以Ir-6为催化剂以二氧化碳为原料的α-氨基酸的合成
Figure BDA0001653434930000171
实施例19
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)
Figure BDA0001653434930000172
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺(54.2毫克,0.2毫摩尔),催 化剂铱-6(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白 色固体,熔点为155.2-155.8℃(31.9毫克,产率为32%)。1H NMR(400MHz,CDCl3):δ7.60 (d,J=7.2Hz,4H),7.31(d,J=7.0Hz,2H),7.28-7.22(m,6H),7.21-7.14(m,3H),3.31(s, 2H),2.66(t,J=10.8Hz,2H,Cy),1.85-1.43(m,10H,Cy),1.34-0.81(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23, 126.57,126.11,74.16,52.25(Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm.IR(thin film):2928,2853,1632,1360,1347,1117,1098,702cm-1;HRMS(2-(苄基氨基)-2,2-二苯基乙酸)C21H20NO2 +计算量为318.1494,实测量为318.1498[M+H]+.HRMS(二环己胺)C12H24N+计 算量为182.1909,实测量为182.1908[M+H]+
实施例20
2-((2-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4b)
Figure BDA0001653434930000181
按照典型实验过程,用酮亚胺N-(2-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩尔),催化剂铱-6(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为138.8-139.5℃(44.2毫克,产率为41%)。1H NMR(400MHz,CDCl3): δ7.62(d,J=7.2Hz,4H),7.53(dd,J=7.6,1.7Hz,1H),7.30-7.22(m,5H),7.22-7.09(m,4H),3.40(s,2H),2.67(t,J=10.9Hz,2H,Cy),1.81-1.28(m,10H,Cy),1.20-0.70(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.85,144.24,139.34,133.57,129.96,129.23,128.97,127.54,127.08,126.58,125.96,73.90,52.09(cy),45.89,28.61(cy),24.97(cy),24.71(cy) ppm.ppm.IR(thin film):2940,1626,1566,1445,1359,754,709,699cm-1;HRMS(2-((2- 氯苄基)氨基)-2,2-二苯基乙酸)C21H19ClNO2 +计算量352.1104,实测量为352.1108[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为182.1908[M+H]+
实施例21
2-((3-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4c)
Figure BDA0001653434930000182
按照典型实验过程,用酮亚胺N-(3-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩尔), 催化剂铱-6(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化 碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为148.4-149.6℃(65.1毫克,产率为61%)。1H NMR(400MHz,CDCl3):δ 7.58(d,J=7.4Hz,4H),7.36-7.11(m,10H),3.27(s,2H),2.66(brs,2H,Cy),1.84-1.45(m, 10H,Cy),1.16-0.93(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.95,144.33, 144.05,133.98,129.41(x2),128.42,127.28,126.67,126.59,126.21,74.08,52.28(Cy),48.39,28.90(Cy),25.17(Cy),24.85(Cy)ppm.IR(thin film):2935,1627,1551,1447,1358,1349,810, 705cm-1;HRMS(2-((3-氯苄基)氨基)-2,2-二苯基乙酸)C21H19ClNO2 +计算量为352.1104, 实测量为352.1106[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为 182.1907[M+H]+
实施例22
2-((4-氟苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4d)
Figure BDA0001653434930000191
按照典型实验过程,用酮亚胺N-(4-氟苄基)-1,1-二苯基甲亚胺(57.9毫克,0.2毫摩 尔),催化剂铱-6(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为155.2-156.1℃(54.8毫克,产率为53%)。1H NMR(400MHz,CDCl3): δ7.59(d,J=7.9Hz,4H),7.22(dt,J=29.1,7.2Hz,8H),6.92(t,J=8.4Hz,2H),3.26(s,2H),2.66(brs,2H,Cy),1.87-1.36(m,10H,Cy),1.02(d,J=54.4Hz,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.98,161.76(d,J=243.7Hz),144.39,137.50,129.89(d,J=7.8Hz),129.42,127.24,126.18,114.87(d,J=21.1Hz),74.17,52.26(Cy),48.09,28.85(Cy),25.14(Cy), 24.86(Cy)ppm.IR(thin film):2931,1629,1507,1361,1350,1219,759,702cm-1;HRMS(2- ((4-氟苄基)氨基)-2,2-二苯基乙酸)C21H19FNO2 +计算量为336.1400,实测值为336.1403 [M+H]+HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
5.人造可见光源促使的以Ir-9为催化剂以二氧化碳为原料的α-氨基酸的合成
Figure BDA0001653434930000192
实施例23
2,2-二苯基-2-((4-(三氟甲基)苄基)氨基)乙酸二环己基胺盐(4e)
Figure BDA0001653434930000193
按照典型实验过程,用酮亚胺1,1-二苯基-N-(4-(三氟甲基)苄基)甲亚胺(67.9毫克,0.2毫摩尔),催化剂铱-9(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4 毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目 标产物,该产物为白色固体,熔点为138.5-140.6℃(75.9毫克,产率为67%)。1H NMR(400 MHz,CDCl3):δ7.58(d,J=7.4Hz,4H),7.50(d,J=8.2Hz,2H),7.42(d,J=8.1Hz,2H),7.26 (t,J=7.5Hz,4H),7.19(t,J=7.2Hz,2H),3.36(s,2H),2.66(t,J=10.5Hz,2H,Cy),1.86-1.40(m,10H,Cy),1.26-0.81(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.96, 146.07,144.25,129.40,128.77(q,J=31.8Hz),128.53,127.31,126.29,125.07(q,J=3.6Hz),124.46(q,J=273.0Hz),74.13,52.32(Cy),48.41,28.80(Cy),25.11(Cy),24.83(Cy)ppm.IR (thin film):2929,2857,1630,1362,1326,1123,1066,705cm-1;HRMS(2,2-二苯基-2-((4- (三氟甲基)苄基)氨基)乙酸)C22H19F3NO2 +计算量为386.1368,实测值为386.1366 [M+H]+.HRMS(二环己胺)C12H24N+计算值为182.1909,实测值为182.1908[M+H]+
实施例24
2-((4-甲基苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4f)
Figure BDA0001653434930000201
按照典型实验过程,用酮亚胺N-(4-甲基苄基)-1,1-二苯基甲亚胺(57.1毫克,0.2毫摩 尔),催化剂铱-9(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为139.8-140.4℃(47.2毫克,产率为46%)。1H NMR(400MHz,CDCl3): δ7.60(d,J=7.2Hz,4H),7.30-7.13(m,8H),7.05(d,J=7.8Hz,2H),3.27(s,2H),2.66(t,J=10.8Hz,2H,Cy),2.30(s,3H),1.81-1.43(m,10H,Cy),1.23-0.82(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.97,144.56,138.72,136.03,129.45,128.87,128.41,127.20,126.08,74.21,52.29(Cy),48.53,28.94(Cy),25.18(Cy),24.87(Cy),21.21ppm.IR(thinfilm): 2942,1629,1489,1456,1360,802,750,706cm-1;HRMS(2-((4-甲基苄基)氨基)-2,2- 二苯基乙酸)C22H22NO2 +计算量为332.1651,实测值为332.1650[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1908[M+H]+
实施例25
2-((4-(叔丁基)苄基)氨基)-2,2-二苯基乙酸二环己基胺盐(4g)
Figure BDA0001653434930000202
按照典型实验过程,用酮亚胺N-(4-(叔丁基)苄基)-1,1-二苯基甲亚胺(65.5毫克, 0.2毫摩尔),催化剂铱-9(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产 物,该产物为白色固体,熔点为165.0-165.6℃(36.6毫克,产率为33%)。1H NMR(400MHz,CDCl3):δ7.60(d,J=7.8Hz,4H),7.29-7.20(m,8H),7.17(t,J=7.2Hz,2H),3.27(s,2H),2.81-2.51(m,2H,Cy),1.94-1.41(m,10H,Cy),1.29(s,9H),1.16-0.93(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ177.05,149.36,144.49,138.79,129.45,128.16,127.22,126.08,125.09,74.15,52.22(Cy),48.33,34.51,31.53,28.88(Cy),25.16(Cy),24.87(Cy)ppm. IR(thin film):2933,2856,1633,1514,1444,1362,729,699cm-1;HRMS(2-((4-(叔丁基) 苄基)氨基)-2,2-二苯基乙酸)C25H28NO2 +计算量为374.2120,实测值为374.2117[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
实施例26
2,2-二苯基-2-((吡啶-2-基甲基)氨基)乙酸二环己胺盐(4h)
Figure BDA0001653434930000211
按照典型实验过程,用酮亚胺1,1-二苯基-N-(吡啶-2-基甲基)甲亚胺(54.5毫克,0.2 毫摩尔),催化剂铱-9(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为136.5-137.1℃(50.9毫克,产率为51%)。1H NMR(400MHz,CDCl3):δ8.65-8.30(m,1H),7.59(d,J=8.5Hz,5H),7.33-7.06(m,8H),3.48(s,2H),2.69(t,J=10.6 Hz,2H,Cy),1.80-1.51(m,10H,Cy),1.19-0.92(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.83,160.98,148.85,144.08,136.22,129.54,127.25,126.17,122.39,121.54,74.13, 52.26(Cy),50.09,29.01(Cy),25.13(Cy),24.89(Cy)ppm.IR(thin film):2927,2852,1624,1455, 1446,1117,1098,698cm-1;HRMS(2,2-二苯基-2-((吡啶-2-基甲基)氨基)乙酸) C20H19N2O2 +计算量为319.1447,实测值为319.1448[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1908[M+H]+
实施例27
2,2-二苯基-2-((吡啶-3-基甲基)氨基)乙酸二环己胺盐(4i)
Figure BDA0001653434930000212
按照典型实验过程,用酮亚胺1,1-二苯基-N-(吡啶-3-基甲基)甲亚胺(54.5毫克,0.2 毫摩尔),催化剂铱-9(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为132.7-132.9℃(58毫克,产率为58%)。1H NMR(400MHz,CDCl3): δ8.50(d,J=1.6Hz,1H),8.44(dd,J=4.8,1.6Hz,1H),7.77-7.50(m,5H),7.31-7.16(m,7H),3.31(s,2H),2.67(brs,2H,Cy),1.83-1.52(m,10H,Cy),1.17-0.93(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ176.90,149.95,148.05,144.17,137.16,136.11,129.41,127.31,126.29,123.24,74.15,52.28(Cy),46.25,28.91(Cy),25.13(Cy),24.83(Cy)ppm.IR (thin film):2932,1632,1448,1360,734,714,702,487cm-1;HRMS(2,2-二苯基-2-((吡啶-3- 基甲基)氨基)乙酸)C20H19N2O2 +计算量为319.1447,实测值为319.1448[M+H]+.HRMS(二 环己胺)C12H24N+计算量为182.1909,实测值为182.1908[M+H]+
6.人造可见光源促使的以Ru-1为催化剂以二氧化碳为原料的α-氨基酸的合成
实施例28
Figure BDA0001653434930000221
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)
Figure BDA0001653434930000222
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺(54.2毫克,0.2毫摩尔),催 化剂Ru-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白 色固体,熔点为155.3-155.8℃(64.9毫克,产率为65%)。1H NMR(400MHz,CDCl3):δ7.60 (d,J=7.2Hz,4H),7.31(d,J=7.0Hz,2H),7.28-7.22(m,6H),7.21-7.14(m,3H),3.31(s, 2H),2.66(t,J=10.8Hz,2H,Cy),1.85-1.43(m,10H,Cy),1.34-0.81(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23, 126.57,126.11,74.16,52.25(Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm.IR(thin film):2928,2853,1632,1360,1347,1117,1098,702cm-1;HRMS(2-(苄基氨基)-2,2-二苯基乙酸)C21H20NO2 +计算量为318.1494,实测量为318.1498[M+H]+.HRMS(二环己胺)C12H24N+计 算量为182.1909,实测量为182.1907[M+H]+
实施例29
2-((2-氯苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4b)
Figure BDA0001653434930000231
按照典型实验过程,用酮亚胺N-(2-氯苄基)-1,1-二苯基甲亚胺(61.2毫克,0.2毫摩 尔),催化剂Ru-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该 产物为白色固体,熔点为138.8-139.5℃(69.3毫克,产率为65%)。1H NMR(400MHz,CDCl3): δ7.62(d,J=7.2Hz,4H),7.53(dd,J=7.6,1.7Hz,1H),7.30-7.22(m,5H),7.22-7.09(m,4H),3.40(s,2H),2.67(t,J=10.9Hz,2H,Cy),1.81-1.28(m,10H,Cy),1.20-0.70(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.85,144.24,139.34,133.57,129.96,129.23,128.97,127.54,127.08,126.58,125.96,73.90,52.09(cy),45.89,28.61(cy),24.97(cy),24.71(cy) ppm.ppm.IR(thin film):2940,1626,1566,1445,1359,754,709,699cm-1;HRMS(2-((2- 氯苄基)氨基)-2,2-二苯基乙酸)C21H19ClNO2 +计算量352.1104,实测量为352.1103[M+H]+。HRMS(二环己胺)C12H24N+计算量为182.1909,实测量为182.1908[M+H]+
实施例30
2,2-二苯基-2-((吡啶-2-基甲基)氨基)乙酸二环己胺盐(4h)
Figure BDA0001653434930000232
按照典型实验过程,用酮亚胺1,1-二苯基-N-(吡啶-2-基甲基)甲亚胺(54.5毫克,0.2 毫摩尔),催化剂Ru-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为136.6-137.1℃(54.9毫克,产率为55%)。1H NMR(400MHz,CDCl3):δ8.65-8.30(m,1H),7.59(d,J=8.5Hz,5H),7.33-7.06(m,8H),3.48(s,2H),2.69(t,J=10.6 Hz,2H,Cy),1.80-1.51(m,10H,Cy),1.19-0.92(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.83,160.98,148.85,144.08,136.22,129.54,127.25,126.17,122.39,121.54,74.13,52.26(Cy),50.09,29.01(Cy),25.13(Cy),24.89(Cy)ppm.IR(thin film):2927,2852,1624,1455, 1446,1117,1098,698cm-1;HRMS(2,2-二苯基-2-((吡啶-2-基甲基)氨基)乙酸) C20H19N2O2 +计算量为319.1447,实测值为319.1449[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为182.1907[M+H]+
实施例31
2,2-二苯基-2-((吡啶-3-基甲基)氨基)乙酸二环己胺盐(4i)
Figure BDA0001653434930000241
按照典型实验过程,用酮亚胺1,1-二苯基-N-(吡啶-3-基甲基)甲亚胺(54.5毫克,0.2 毫摩尔),催化剂Ru-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为132.8-132.9℃(49毫克,产率为49%)。1H NMR(400MHz,CDCl3): δ8.50(d,J=1.6Hz,1H),8.44(dd,J=4.8,1.6Hz,1H),7.77-7.50(m,5H),7.31-7.16(m,7H),3.31(s,2H),2.67(brs,2H,Cy),1.83-1.52(m,10H,Cy),1.17-0.93(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ176.90,149.95,148.05,144.17,137.16,136.11,129.41,127.31,126.29,123.24,74.15,52.28(Cy),46.25,28.91(Cy),25.13(Cy),24.83(Cy)ppm.IR (thin film):2932,1632,1448,1360,734,714,702,487cm-1;HRMS(2,2-二苯基-2-((吡啶-3- 基甲基)氨基)乙酸)C20H19N2O2 +计算量为319.1447,实测值为319.1445[M+H]+.HRMS(二 环己胺)C12H24N+计算量为182.1909,实测值为182.1908[M+H]+
实施例32
2,2-二苯基-2-((噻吩-2-基甲基)氨基)乙酸二环己胺盐(4j)
Figure BDA0001653434930000242
按照典型实验过程,用酮亚胺1,1-二苯基-N-(噻吩-2-基甲基)甲亚胺(55.5毫克,0.2 毫摩尔),催化剂Ru-1(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔), 二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为141.1-141.7℃(78.8毫克,产率为78%)。1H NMR(400MHz,CDCl3):δ7.60(d,J=7.1Hz,4H),7.28-7.09(m,7H),6.94-6.77(m,2H),3.48(s,2H),2.70(brs,2H,Cy),1.80-1.52(m,10H,Cy),1.23-0.94(m,10H,Cy)ppm;13C{1H}NMR(100MHz, CDCl3):δ176.70,145.93,144.38,129.36,127.26,126.49,126.14,123.94,123.68,73.94,52.24(Cy),43.83,28.95(Cy),25.19(Cy),24.89(Cy)ppm.IR(thin film):2933,2855,1627,1548,1447, 1359,753,699cm-1;HRMS(2,2-二苯基-2-((噻吩-2-基甲基)氨基)乙酸)C19H18NO2S+计 算量为324.1058,实测值为324.1056[M+H]+.HRMS(二环己胺)C12H24N+计算量为 182.1909,实测值为182.1908[M+H]+
7.人造可见光源促使的以Ru-3为催化剂以二氧化碳为原料的α-氨基酸的合成
Figure BDA0001653434930000251
实施例33
2,2-二苯基-2-((4-(三氟甲基)苄基)氨基)乙酸二环己基胺盐(4e)
Figure BDA0001653434930000252
按照典型实验过程,用酮亚胺1,1-二苯基-N-(4-(三氟甲基)苄基)甲亚胺(67.9毫克,0.2毫摩尔),催化剂Ru-3(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4 毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目 标产物,该产物为白色固体,熔点为138.1-140.9℃(38.5毫克,产率为34%)。1H NMR(400 MHz,CDCl3):δ7.58(d,J=7.4Hz,4H),7.50(d,J=8.2Hz,2H),7.42(d,J=8.1Hz,2H),7.26 (t,J=7.5Hz,4H),7.19(t,J=7.2Hz,2H),3.36(s,2H),2.66(t,J=10.5Hz,2H,Cy),1.86-1.40(m,10H,Cy),1.26-0.81(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.96, 146.07,144.25,129.40,128.77(q,J=31.8Hz),128.53,127.31,126.29,125.07(q,J=3.6Hz),124.46(q,J=273.0Hz),74.13,52.32(Cy),48.41,28.80(Cy),25.11(Cy),24.83(Cy)ppm.IR (thin film):2929,2857,1630,1362,1326,1123,1066,705cm-1;HRMS(2,2-二苯基-2-((4- (三氟甲基)苄基)氨基)乙酸)C22H19F3NO2 +计算量为386.1368,实测值为386.1362 [M+H]+.HRMS(二环己胺)C12H24N+计算值为182.1909,实测值为182.1908[M+H]+
实施例34
2-((4-甲基苄基)氨基)-2,2-二苯基乙酸二环己胺盐(4f)
Figure BDA0001653434930000261
按照典型实验过程,用酮亚胺N-(4-甲基苄基)-1,1-二苯基甲亚胺(57.1毫克,0.2毫摩尔), 催化剂Ru-3(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化 碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色固体,熔点为139.5-140.2℃(56.4毫克,产率为55%)。
1H NMR(400MHz,CDCl3):δ7.60(d,J=7.2Hz,4H),7.30-7.13(m,8H),7.05(d,J=7.8 Hz,2H),3.27(s,2H),2.66(t,J=10.8Hz,2H,Cy),2.30(s,3H),1.81-1.43(m,10H,Cy),1.23- 0.82(m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ176.97,144.56,138.72,136.03,129.45,128.87,128.41,127.20,126.08,74.21,52.29(Cy),48.53,28.94(Cy),25.18(Cy),24.87(Cy),21.21ppm;
IR(thin film):2942,1629,1489,1456,1360,802,750,706cm-1;
HRMS(2-((4-甲基苄基)氨基)-2,2-二苯基乙酸)C22H22NO2 +计算量为332.1651,实测值为332.1650[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为 182.1908[M+H]
实施例35
2-((4-(叔丁基)苄基)氨基)-2,2-二苯基乙酸二环己基胺盐(4g)
Figure BDA0001653434930000262
按照典型实验过程,用酮亚胺N-(4-(叔丁基)苄基)-1,1-二苯基甲亚胺(65.5毫克, 0.2毫摩尔),催化剂Ru-3(0.9毫克,0.5mol%),N,N-二环己基甲胺(85.6微升,0.4毫摩尔),二氧化碳(在气球中),2毫升乙腈,进行反应。反应结束后,通过过滤得到目标 产物,该产物为白色固体,熔点为164.1-165.0℃(68.8毫克,产率为62%)。
1H NMR(400MHz,CDCl3):δ7.60(d,J=7.8Hz,4H),7.29-7.20(m,8H),7.17(t,J=7.2 Hz,2H),3.27(s,2H),2.81-2.51(m,2H,Cy),1.94-1.41(m,10H,Cy),1.29,s,9H),1.16-0.93 (m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ177.05,149.36,144.49,138.79,129.45,128.16,127.22,126.08,125.09,74.15,52.22(Cy),48.33,34.51,31.53,28.88(Cy),25.16(Cy),24.87(Cy) ppm;
IR(thin film):2933,2856,1633,1514,1444,1362,729,699cm-1;
HRMS(2-((4-(叔丁基)苄基)氨基)-2,2-二苯基乙酸)C25H28NO2 +计算量为374.2120, 实测值为374.2119[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为 182.1907[M+H]+
二.太阳光促使的以二氧化碳为原料的α-氨基酸的合成
Figure BDA0001653434930000271
亚胺(0.2毫摩尔),催化剂Ir-7(0.9毫克,0.5mol%),二环己基甲胺(85.6微升,0.4毫摩尔)溶解在1毫升乙腈中。搅拌的条件下通入二氧化碳常压气体。该反应体系在室外太阳光的照射下(天气:多云,气温16℃左右,上午8:00-下午6:00)反应10个小时。 反应结束后,目标产物以白色沉淀的形式析出。过滤、干燥除去溶剂后得到白色固体。经过 分析,该白色固体为目标产物α-氨基酸的二环己基氨盐
实施例36
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)
Figure BDA0001653434930000272
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺进行反应。反应结束后,通过 过滤得到白色预期产物(产率91%)。1H NMR(400MHz,CDCl3):δ7.60(d,J=7.2Hz,4H), 7.31(d,J=7.0Hz,2H),7.287.22(m,6H),7.21-7.14(m,3H),3.31(s,2H),2.66(t,J=10.8 Hz,2H,Cy),1.85-1.43(m,10H,Cy),1.34-0.81(m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23,126.57,126.11,74.16,52.25 (Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm
实施例37
2-(2-氯苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4b)
Figure BDA0001653434930000281
按照典型实验过程,用酮亚胺N-(2-氯苄基)-1,1-二苯基甲亚胺进行反应。反应结束 后,通过过滤得到白色预期产物(产率89%)。1H NMR(400MHz,CDCl3):δ7.62(d,J=7.2Hz, 4H),7.53(dd,J=7.6,1.7Hz,1H),7.30-7.22(m,5H),7.22-7.09(m,4H),3.40(s,2H),2.67(t, J=10.9Hz,2H,Cy),1.81-1.28(m,10H,Cy),1.20-0.70(m,10H,Cy)ppm;13C{1H}NMR (100MHz,CDCl3):δ7.62(d,J=7.2Hz,4H),7.53(dd,J=7.6,1.7Hz,1H),7.30-7.22(m,5H), 7.22-7.09(m,4H),3.40(s,2H),2.67(t,J=10.9Hz,2H,Cy),1.81-1.28(m,10H,Cy),1.20- 0.70(m,10H,Cy)ppm.
实施例38
2-(3-氯苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4c)
Figure BDA0001653434930000282
按照典型实验过程,用酮亚胺N-(3-氯苄基)-1,1-二苯基甲亚胺进行反应。反应结束 后,通过过滤得到白色预期产物(产率91%)。1H NMR(400MHz,CDCl3):δ7.58(d,J=7.4Hz, 4H),7.36-7.11(m,10H),3.27(s,2H),2.66(brs,2H,Cy),1.84-1.45(m,10H,Cy),1.16-0.93 (m,10H,Cy)ppm;13C{1H}NMR(100MHz,CDCl3):δ176.95,144.33,144.05,133.98,129.41 (x2),128.42,127.28,126.67,126.59,126.21,74.08,52.28(Cy),48.39,28.90(Cy),25.17(Cy), 24.85(Cy)ppm。
三.1g放大量反应测试
Figure BDA0001653434930000283
亚胺(1克),催化剂Ir-7(0.5mol%),二环己基甲胺(2当量)溶解在36毫升乙腈中。搅拌的条件下通入二氧化碳常压气体。该反应体系在人造光源或者室外太阳光的照射下 反应10个小时。反应结束后,目标产物以白色沉淀的形式析出。过滤、干燥除去溶剂后得到白色固体。经过分析,该白色固体为目标产物α-氨基酸的二环己基氨盐
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)
Figure BDA0001653434930000291
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺(1克,18.45毫摩尔),催化 剂铱-7(0.0166克,0.5mol%),N,N-二环己基甲胺(1.583毫升,18.49毫摩尔),二氧化碳(在气球中),36毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物 为白色固体,熔点为155.2-155.8℃(产率为84%)。1H NMR(400MHz,CDCl3):δ7.60 (d,J=7.2Hz,4H),7.31(d,J=7.0Hz,2H),7.28-7.22(m,6H),7.21-7.14(m,3H),3.31(s, 2H),2.66(t,J=10.8Hz,2H,Cy),1.85-1.43(m,10H,Cy),1.34-0.81(m,10H,Cy)ppm; 13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23, 126.57,126.11,74.16,52.25(Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm.IR(thin film):2928,2853,1632,1360,1347,1117,1098,702cm-1;HRMS(2-(苄基氨基)-2,2-二苯基乙酸)C21H20NO2 +计算量为318.1494,实测量为318.1493[M+H]+.HRMS(二环己胺)C12H24N+计 算量为182.1909,实测量为182.1908[M+H]+
2-((呋喃-2-基甲基)氨基)-2,2-二苯基乙酸二环己基胺盐(4k)
Figure BDA0001653434930000292
按照典型实验过程,用酮亚胺N-(呋喃-2-基甲基)-1,1-二苯基甲亚胺(1克,19.12毫 摩尔),催化剂铱-7(0.0166克,0.5mol%),N,N-二环己基甲胺(1.583毫升,18.49毫摩尔),二氧化碳(在气球中),36毫升乙腈,进行反应。反应结束后,通过过滤得到目标 产物,该产物为白色固体,熔点为154.1-154.5℃(产率为93%)。1H NMR(400MHz,CDCl3): δ7.58(d,J=7.2Hz,4H),7.40-7.02(m,7H),6.25(dd,J=3.1,1.9Hz,1H),6.17-5.95(m,1H),3.27(s,2H),2.70(brs,2H),1.80-1.50(m,10H,Cy),1.20-0.94(m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ176.83,155.34,144.05,141.24,129.46,127.25,126.17,110.15,106.00,73.84,52.21(Cy),41.71,28.85(Cy),25.13(Cy),24.87(Cy)ppm;
IR(thin film):2940,2857,1625,1566,1447,1359,720,697cm-1;
HRMS(2-((呋喃-2-基甲基)氨基)-2,2-二苯基乙酸)C19H18NO3 +计算量为308.1287,实测值为308.1286[M+H]+.HRMS(二环己胺)C12H24N+计算量为182.1909,实测值为 182.1907[M+H]+
四.10g放大量反应测试
亚胺(10克),催化剂Ir-7(0.5mol%),二环己基甲胺(2当量)溶解在36毫升乙 腈中。搅拌的条件下通入二氧化碳常压气体。该反应体系在人造光源或者室外太阳光的照射下反应10个小时。反应结束后,目标产物以白色沉淀的形式析出。过滤、干燥除去溶剂后 得到白色固体。经过分析,该白色固体为目标产物α-氨基酸的二环己基氨盐
2-(苄基氨基)-2,2-二苯基乙酸二环己基胺盐(4a)
Figure BDA0001653434930000301
按照典型实验过程,用酮亚胺N-苄基-1,1-二苯基甲亚胺(10克,0.185摩尔),催化剂 铱-7(0.166克,0.5mol%),N,N-二环己基甲胺(15.83毫升,0.185摩尔),二氧化碳(在气球中),360毫升乙腈,进行反应。反应结束后,通过过滤得到目标产物,该产物为白色 固体,熔点为155.2-155.5℃(产率为87%)。
1H NMR(400MHz,CDCl3):δ7.60(d,J=7.2Hz,4H),7.31(d,J=7.0Hz,2H),7.28-7.22 (m,6H),7.21-7.14(m,3H),3.31(s,2H),2.66(t,J=10.8Hz,2H,Cy),1.85-1.43(m,10H,Cy), 1.34-0.81(m,10H,Cy)ppm;
13C{1H}NMR(100MHz,CDCl3):δ177.06,144.50,141.82,129.44,128.47,128.20,127.23,126.57,126.11,74.16,52.25(Cy),48.80,28.95(Cy),25.17(Cy),24.87(Cy)ppm;
IR(thin film):2928,2853,1632,1360,1347,1117,1098,702cm-1;HRMS(2-(苄基氨基) -2,2-二苯基乙酸)C21H20NO2 +计算量为318.1494,实测量为318.1493[M+H]+.HRMS(二环 己胺)C12H24N+计算量为182.1909,实测量为182.1908[M+H]+

Claims (5)

1.一种α-氨基酸的合成方法,其特征在于:以二氧化碳和亚胺化合物为原
料,常温常压,在光源以及光敏催化剂的条件下,与电子供体合成α-氨基酸
Figure FDA0002839149390000011
其中,所述的亚胺化合物中的Ar基团选自苯基、含有取代基的苯基、呋喃基、噻吩基;所述的含有取代基的苯基中取代基为氯原子,氟原子,溴原子,甲基,乙基,正丙基,异丙基,甲氧基,三氟甲基,氰基,羟基,氨基,硝基,羧基,取代基不同或相同,相同的取代基取代位置不同;
R1基团选自苯基、呋喃基、噻吩基;
R2基团选自烷基、苯基、含有取代基或不含取代基的苄基;
所述的光源选自人造可见光源或太阳光;
所述的光敏催化剂选自光敏铱催化剂,钌催化剂,所述的光敏铱催化剂或钌催化剂选自如下:
Figure FDA0002839149390000012
其中X为碳或者氮,R3,R4,R5,R6取代基为氢,氟,或叔丁基;
所述的电子供体选自胺类化合物,所述的胺类化合物选自二甲胺,三甲胺,二乙胺,三乙胺,二异丙基甲胺,二异丙基乙胺,二环己基甲胺,二环己基乙胺中的一种。
2.一种α-氨基酸的合成方法,其特征在于:以二氧化碳和亚胺化合物为原料,常温常压,在光源以及光敏催化剂的条件下,与电子供体合成α-氨基酸,所述的亚胺化合物结构式如下:
Figure FDA0002839149390000021
所述的光源、光敏催化剂、电子供体为权利要求1中所述的光源、光敏催化剂、电子供体。
3.一种α-氨基酸的合成方法,其特征在于:以二氧化碳和亚胺化合物为原料,常温常压,在光源以及光敏催化剂的条件下,与电子供体合成α-氨基酸:
Figure FDA0002839149390000031
所述的光敏催化剂结构如下:
Figure FDA0002839149390000032
Figure FDA0002839149390000041
所述的光源、亚胺化合物、电子供体为权利要求1中所述的光源、亚胺化合物、电子供体。
4.根据权利要求1所述的合成方法,其特征在于:所述的合成方法采用溶剂,所述的溶剂为乙腈,乙酸乙酯,甲苯,DMF中的一种。
5.根据权利要求1所述的合成方法,其特征在于:所述的光敏催化剂为光敏铱催化剂,电子供体为二环己基甲胺,采用溶剂为乙腈,光源是蓝色LED光源或者太阳光。
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