CN114716361B - 一种合成手性螺环茚酮-吡咯类化合物的方法 - Google Patents

一种合成手性螺环茚酮-吡咯类化合物的方法 Download PDF

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CN114716361B
CN114716361B CN202011524886.1A CN202011524886A CN114716361B CN 114716361 B CN114716361 B CN 114716361B CN 202011524886 A CN202011524886 A CN 202011524886A CN 114716361 B CN114716361 B CN 114716361B
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孔望清
丁正天
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Abstract

本发明公开了一种合成手性螺环茚酮‑吡咯类化合物的方法。本发明在将1,6‑烯炔化合物、邻硼酸苯甲醛化合物、四水合醋酸镍和(S)‑1‑(二苯基膦基)‑2‑[(S)‑4‑异丙基恶唑啉‑2‑基]二茂铁加入到N‑甲基吡咯烷酮中,在一定温度下搅拌反应至完全,反应后分离纯化,即得到手性螺环茚酮‑吡咯化合物。该方法通过简单原料与廉价的镍催化剂高效、经济地制备手性螺环茚酮‑吡咯类化合物;同时,以醛基氢氘代后的邻硼酸苯甲醛作为原料,通过本方法可以合成高氘代率的手性螺环茚酮‑吡咯类化合物。该方法底物普适性好,产率高,对映选择性好,所制备的手性螺环茚酮‑吡咯类化合物具有广泛的应用前景。

Description

一种合成手性螺环茚酮-吡咯类化合物的方法
技术领域
本发明属于有机合成领域,具体涉及一种合成手性螺环茚酮-吡咯类化合物的方法。
背景技术
手性螺环结构广泛存在与天然化合物和药物分子之中(Bioorg.Med.Chem.Lett.2014,24,3673-3682.;Expert Opinion on Drug Discovery,2016,11,831-834.),合成包含多个立体中心的螺环骨架的不对称结构一直是一项长期的挑战,因为形成螺环季碳立体中心不仅需要克服巨大的空间位阻和环应变,而且还需要控制反应中的对映选择性和非对映选择性。之前的手性螺环化合物合成方法原料合成复杂,催化剂昂贵,对映选择性差,效率低(Chem.Soc.Rev.2018,47,5946-5996.;ACSCatal.2019,9,1820-1882.;Chem.Soc.Rev.2012,41,1060-1074.;ACS Catal.2013,3,540-553.)。
发明内容
为了解决上述技术问题,本发明提供一种有效制备手性螺环茚酮-吡咯类化合物的方法。
本发明提供的技术方案具体如下:
一种合成手性螺环茚酮-吡咯类化合物的方法,包括以下步骤:将四水合醋酸镍、(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁、烯炔类化合物A和邻硼酸苯甲醛类化合物B一起溶于溶剂N-甲基吡咯烷酮中,在惰性氛围下搅拌反应至完全,反应后分离提纯,即得到手性螺环茚酮-吡咯类化合物。
进一步,所述的烯炔类化合物A的结构式为:
其中X选自氧或氢中的一种,
R1选自如下结构之一:
R2基团为对甲苯磺酰基(-Ts);
R3基团选自氢(-H)、甲基(-Me)、正己基(-nHex)、苄基(-Bn)、甲酸甲酯(-COOMe)、苯基(-Ph)、对甲氧基苯基对氟苯基/>萘基/>中的一种;
R4基团选自氢(-H)、甲基(-Me)中的一种;R3基团、R4基团和烯烃可以构成一个脂肪基的大环,结构如下:
进一步,所述邻硼酸苯甲醛类物B结构式为:
其中R1、R2、R3、R4分别为相同或不同的基团,选自以氢(-H)、烷氧基(-OMe)、苄氧基(-OBn)、氟(-F)、氯(-Cl)、羟基(-OH)中的一种;醛基的氢原子可以被氘原子取代以合成含氘类型的化合物。
进一步,在反应前,反应体系中各原料的浓度为:
烯炔化合物A的浓度为0.05mmol/L;邻硼酸苯甲醛化合物B浓度为0.15mmol/L~0.3mmol/L;四水合醋酸镍的浓度为0.005mmol/L;(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁浓度为0.01mol/L。
进一步,所述反应温度为80-120℃。
进一步,所述反应时间为36-72小时。
进一步,所述分离提纯包括萃取和柱层析。
进一步,包括以下步骤:在惰性气体的保护下,将烯炔化合物A、邻硼酸苯甲醛化合物B、四水合醋酸镍与(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁加入反应管中,加入N-甲基吡咯烷酮作为溶剂,封闭反应管,80-120℃下反应完全,萃取体系三次,合并有机相,加入无水硫酸钠干燥,过滤,柱层析后真空抽干得到手性螺环茚酮-吡咯类产物。
进一步,所述萃取体系为乙酸乙酯或二氯甲烷和水或饱和NH4Cl水溶液。
进一步,所述柱层析的展开剂为乙酸乙酯:石油醚的体积比为40:1~5:1。
本发明所制备的手性螺环茚酮-吡咯化合物是以1,6-烯炔类化合物与邻硼酸苯甲醛类化合物为原料,在N-甲基吡咯烷酮中,以四水合醋酸镍为催化剂,(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁为手性配体,在氩气保护下在一定温度下反应制得,可用如下方程式表示:
本发明提供了一种有效的以烯炔化合物、邻硼酸苯甲醛化合物为原料,四水合醋酸镍为催化剂,(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁为手性配体通过氩气保护条件下加热制备含有不同取代基的手性螺环茚酮-吡咯类化合物的方法;还提供了制备含有高氘代率手性螺环茚酮-吡咯的制备方法。该方法可适用于多种含不同取代基的烯炔化合物与邻硼酸苯甲醛类化合物,反应条件温和,操作简便,反应中除催化剂和配体外无需添加其他添加剂。且反应的产率较好(大部分产率>50%),对映选择性好(一般>90%),氘代手性螺环茚酮-吡咯产物氘代率高(一般>90%)。
本发明具有以下优点和有益效果:
1.本发明通过廉价易得的原料出发,以廉价的四水合醋酸镍作为催化剂,得到复杂的手性螺环茚酮-吡咯化合物,反应高效且产物具有高对映选择性性。
2.本发明原料合成简单,有效减少了手性螺环茚酮-吡咯的合成步骤,提高了手性螺环茚酮-吡咯合成的效率。
具体实施方式
下面结合具体实施例对本发明进一步说明,本发明的内容完全不限于此。
实施例1:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1a(0.1mmol,33.9mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环3a(33.9mg,76%yield,93%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.82(d,J=7.6Hz,1H),7.66-7.58(m,3H),7.52-7.46(m,1H),7.39(d,J=7.8Hz,1H),7.31(d,J=7.7Hz,2H),7.25-7.18(m,3H),6.81-6.73(m,2H),3.77(s,1H),3.51(d,J=10.4Hz,1H),3.39(d,J=10.3Hz,1H),3.31(d,J=10.3Hz,1H),3.06(d,J=10.3Hz,1H),2.46(s,3H),0.85(s,3H),0.48(s,3H);13C NMR(101MHz,CDCl3)δ204.8,157.3,143.6,137.9,136.6,135.8,134.4,129.7,129.0,128.8,128.3,127.7,127.2,125.9,123.9,59.5,58.8,58.7,54.2,45.0,25.0,21.6,21.4;HRMS:(ESI)calcd forC27H28NO3S+[M+H]+446.1784;found 446.1779.
实施例2:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1b(0.1mmol,36.9mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3b(40.9mg,86%yield,99%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.81(d,J=7.5Hz,1H),7.67-7.63(m,2H),7.62-7.57(m,1H),7.52-7.45(m,1H),7.37(d,J=7.8Hz,1H),7.32(d,J=8.0Hz,2H),6.76-6.66(m,4H),3.77(s,3H),3.72(s,1H),3.49(d,J=10.4Hz,1H),3.38(d,J=10.3Hz,1H),3.30(d,J=10.3Hz,1H),3.09(d,J=10.3Hz,1H),2.46(s,3H),0.83(s,3H),0.46(s,3H);13C NMR(151MHz,CDCl3)δ205.2,158.9,157.3,143.6,136.6,135.7,134.4,130.0,129.8,129.3,128.8,127.2,125.9,123.9,114.4,59.5,58.9,58.0,55.3,54.2,44.9,25.0,21.6,21.5;HRMS:(ESI)calcd for C28H30NO4S+[M+H]+476.1890;found 476.1886.
实施例3:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1c(0.1mmol,38.2mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3c(36.1mg,74%yield,98%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.82-7.78(m,1H),7.69-7.64(m,2H),7.60-7.54(m,1H),7.49-7.43(m,1H),7.35(d,J=7.8Hz,1H),7.34-7.30(m,2H),6.65-6.59(m,2H),6.58-6.51(m,2H),3.68(s,1H),3.49(d,J=10.3Hz,1H),3.41(d,J=10.5Hz,1H),3.29(d,J=10.3Hz,1H),3.17(d,J=10.4Hz,1H),2.91(s,6H),2.46(s,3H),0.85(s,3H),0.45(s,3H);13C NMR(151MHz,CDCl3)δ205.5,157.4,143.5,136.7,135.5,134.5,129.7,128.8,128.6,127.2,125.8,123.8,112.9,59.5,59.0,58.0,54.2,44.8,40.5,25.0,21.6,21.4;HRMS:(ESI)calcd for C29H33N2O3S+[M+H]+489.2206;found 489.2208.
实施例4:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1d(0.1mmol,36.4mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3d(36.2mg,77%yield,98%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.82(d,J=7.6Hz,1H),7.67-7.59(m,3H),7.55-7.47(m,3H),7.40(d,J=7.8Hz,1H),7.32(d,J=7.8Hz,2H),6.91(d,J=7.8Hz,2H),3.83(s,1H),3.51(d,J=10.4Hz,1H),3.40(d,J=10.2Hz,1H),3.33(d,J=10.4Hz,1H),2.97(d,J=10.2Hz,1H),2.47(s,3H),0.86(s,3H),0.50(s,3H);13C NMR(151MHz,CDCl3)δ203.2,156.6,143.9,143.3,136.2,136.2,134.3,132.7,129.8,129.2,129.2,127.1,125.9,124.2,118.2,111.7,59.2,58.8,53.6,45.3,24.7,21.6,21.5;HRMS:(ESI)calcd for C28H27N2O3S+[M+H]+471.1737;found 471.1753.
实施例5:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1e(0.1mmol,37.4mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3e(38.3mg,89%yield,95%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.80(d,J=7.5Hz,1H),7.65-7.62(m,2H),7.61-7.58(m,1H),7.51-7.45(m,1H),7.38(d,J=7.8Hz,1H),7.31(d,J=7.8Hz,2H),7.17(d,J=8.7Hz,1H),6.70(d,J=8.3Hz,2H),3.74(s,1H),3.50(d,J=10.4Hz,1H),3.39(d,J=10.3Hz,1H),3.31(d,J=10.4Hz,1H),3.03(d,J=10.3Hz,1H),2.45(s,3H),0.83(s,3H),0.43(s,3H);13CNMR(151MHz,CDCl3)δ204.1,156.8,143.7,136.4,136.3,135.9,134.2,133.5,129.7,129.6,129.1,128.9,127.1,125.9,124.0,59.3,58.7,58.1,53.8,45.1,24.7,21.5,21.5.HRMS:(ESI)calcd for C27H27NO3ClS+[M+H]+480.1395;found 480.1380.
实施例6:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1f(0.1mmol,40.7mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3f(35.9mg,70%yield,99%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.85-7.81(m,1H),7.66-7.61(m,3H),7.52(td,J=7.5,0.9Hz,1H),7.49-7.45(m,2H),7.42-7.39(m,1H),7.33-7.29(m,2H),6.90(d,J=8.0Hz,2H),3.83(s,1H),3.52(d,J=10.4Hz,1H),3.43(d,J=10.2Hz,1H),3.33(d,J=10.4Hz,1H),3.00(d,J=10.2Hz,1H),2.46(s,3H),0.86(s,3H),0.52(s,3H);13C NMR(151MHz,CDCl3)δ203.7,156.8,143.8,141.9,136.3,136.1,134.3,130.0,129.8,129.1,128.7,127.2,125.9(q,J=3.0Hz),124.2,123.8(q,J=272.0Hz),59.3,58.8,58.7,53.8,45.3,24.7,21.6;19F NMR(376MHz,CDCl3)δ-62.6;HRMS:(ESI)calcd for C28H26F3NO3SH+[M+H]+514.1658;found 514.1655.
实施例7:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1g(0.1mmol,41.1mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3g(39.3mg,76%yield,94%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.92-7.85(m,2H),7.84-7.80(m,1H),7.66-7.59(m,3H),7.54-7.48(m,1H),7.41(d,J=7.8Hz,1H),7.33-7.28(m,2H),6.88-6.80(m,2H),4.37(q,J=7.2Hz,2H),3.83(s,1H),3.51(d,J=10.4Hz,1H),3.39(d,J=10.3Hz,1H),3.31(d,J=10.4Hz,1H),3.00(d,J=10.3Hz,1H),2.45(s,3H),1.38(t,J=7.1Hz,3H),0.84(s,3H),0.50(s,3H);13C NMR(151MHz,CDCl3)δ203.9,166.0,156.9,143.7,142.9,136.4,136.0,134.2,130.1,129.8,129.8,129.0,128.3,127.1,125.9,124.0,61.0,59.3,58.8,58.7,53.8,45.1,24.8,21.5,21.5,14.3;HRMS:(ESI)calcd for C30H32NO5S+[M+H]+518.1996;found 518.1998.
实施例8:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1h(0.1mmol,46.6mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3h(24.6mg,43%yield,91%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.86-7.79(m,1H),7.69-7.57(m,5H),7.53-7.47(m,1H),7.39(d,J=7.8Hz,1H),7.31(d,J=8.0Hz,2H),6.76(d,J=7.6Hz,2H),3.78(s,1H),3.50(d,J=10.4Hz,1H),3.38(d,J=10.5Hz,1H),3.29(d,J=10.4Hz,1H),3.05(d,J=10.4Hz,1H),2.47(s,3H),1.34(s,12H),0.84(s,3H),0.48(s,3H);13C NMR(151MHz,CDCl3)δ204.5,157.3,143.6,141.0,136.6,135.8,135.4,134.4,129.8,128.8,127.6,127.1,125.9,123.9,83.9,59.4,58.9,58.8,54.1,45.0,25.0,24.9,24.8,21.6,21.4;HRMS:(ESI)calcdfor C33H39NBO5S+[M+H]+572.2637;found 572.2623.
实施例9:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1i(0.1mmol,42.9mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3i(48.7mg,91%yield,95%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.90-7.86(m,1H),7.85-7.80(m,1H),7.69-7.64(m,1H),7.59-7.52(m,4H),7.51-7.45(m,2H),7.43-7.38(m,2H),7.36-7.30(m,1H),7.23-7.17(m,2H),6.84-6.76(m,1H),3.95(s,1H),3.56(d,J=10.5Hz,1H),3.45(d,J=10.4Hz,1H),3.34(d,J=10.5Hz,1H),3.09(d,J=10.3Hz,1H),2.39(s,3H),0.91(s,3H),0.55(s,3H);13C NMR(151MHz,CDCl3)δ204.9,157.2,156.5,155.4,143.6,136.5,135.9,134.3,132.5,129.6,128.9,127.6,127.1,126.0,124.8,124.1,123.7,122.8,120.8,112.1,111.8,59.5,59.0,58.56,54.10,45.1,25.0,21.5,21.5;HRMS:(ESI)calcd for C33H30NO4S+[M+H]+536.1890;found 536.1881.
实施例10:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1j(0.1mmol,50.4mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3j(54.3mg,89%yield,99%ee),白色固体。
1H NMR(600MHz,CDCl3)δ8.00(d,J=7.8Hz,1H),7.87(d,J=7.4Hz,1H),7.66-7.57(m,6H),7.56-7.50(m,3H),7.48-7.39(m,4H),7.28-7.26(m,1H),7.23-7.15(m,3H),6.74-6.67(m,1H),3.99(s,1H),3.55(d,J=10.4Hz,1H),3.48(d,J=10.4Hz,1H),3.34(d,J=10.4Hz,1H),3.17(d,J=10.5Hz,1H),2.37(s,3H),0.94(s,3H),0.54(s,3H);13C NMR(151MHz,CDCl3)δ205.4,157.4,143.5,141.2,140.1,137.4,136.7,135.7,134.4,129.9,129.7,129.4,128.8,127.6,127.1,127.0,126.3,126.0,124.0,123.7,122.9,120.3,120.0,110.3,109.9,59.5,59.1,58.9,54.3,45.1,25.0,21.5,21.5;HRMS:(ESI)calcd forC39H35N2O3S+[M+H]+611.2363;found 611.2378.
实施例11:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1k(0.1mmol,51.5mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3k(57.8mg,93%yield,>20:1d.r.),白色固体。
1H NMR(600MHz,CDCl3)δ7.80(d,J=7.2Hz,1H),7.70-7.65(m,2H),7.54(td,J=7.5,1.2Hz,1H),7.50-7.44(m,1H),7.34(d,J=7.9Hz,2H),7.23(d,J=7.8Hz,1H),7.09(d,J=7.9Hz,1H),6.54-6.46(m,2H),3.72(s,1H),3.44(d,J=10.4Hz,1H),3.38(d,J=10.5Hz,1H),3.30(d,J=10.4Hz,1H),3.19(d,J=10.5Hz,1H),2.81-2.74(m,2H),2.54-2.45(m,4H),2.37-2.31(m,1H),2.28-2.22(m,1H),2.18-2.10(m,1H),2.08-2.02(m,1H),2.01-1.92(m,2H),1.65-1.56(m,2H),1.55-1.38(m,3H),0.92(s,3H),0.89(s,3H),0.42(s,3H);13C NMR(151MHz,CDCl3)δ220.9,205.2,157.5,143.6,139.2,137.1,136.6,135.6,135.2,134.5,129.7,128.7,127.2,125.9,125.7,125.4,123.8,59.3,58.7,58.2,54.3,50.4,47.9,44.9,44.2,37.8,35.8,31.5,29.3,26.3,25.4,25.1,21.6,21.5,21.2,13.8;HRMS:(ESI)calcd for C39H44NO4S+[M+H]+622.2986;found 622.2971.
实施例12:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1l(0.1mmol,27.7mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3l(16.1mg,42%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.84-7.76(m,2H),7.74-7.70(m,1H),7.56-7.49(m,1H),7.45-7.32(m,4H),3.62(d,J=9.8Hz,1H),3.54(d,J=9.8Hz,1H),3.50(d,J=10.3Hz,1H),3.31(d,J=10.3Hz,1H),2.59(q,J=7.6Hz,1H),2.47(s,3H),1.12(d,J=7.6Hz,3H),0.72(s,3H),0.45(s,3H);13C NMR(151MHz,CDCl3)δ207.5,156.0,143.8,135.4,134.8,134.3,129.83,128.5,127.3,125.9,123.8,59.4,57.5,52.6,46.4,44.6,24.5,21.6,21.3,15.1;HRMS:(ESI)calcd for C22H26NO3S+[M+H]+384.1628;found 384.1632.
实施例13:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1m(0.1mmol,38.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3m(12.2mg,32%yield,98%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.87-7.78(m,3H),7.56(t,J=7.5Hz,1H),7.44(t,J=7.4Hz,1H),7.40(d,J=7.9Hz,2H),7.30(d,J=7.8Hz,1H),6.26(s,1H),5.21(s,1H),3.84(d,J=10.1Hz,1H),3.72(d,J=10.1Hz,1H),3.51(d,J=10.2Hz,1H),3.38(d,J=10.2Hz,1H),2.48(s,3H),0.69(s,3H),0.60(s,3H);13C NMR(151MHz,CDCl3)δ192.2,151.3,148.5,143.9,137.1,135.0,134.4,129.9,128.7,127.3,125.5,124.2,119.1,59.5,57.0,55.7,45.0,23.5,22.8,21.6;HRMS:(ESI)calcd for C22H24NO3S+[M+H]+382.1471;found382.1461.
实施例14:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1n(0.1mmol,26.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3n(11.4mg,31%yield,19%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.95(d,J=8.4Hz,2H),7.76-7.70(m,1H),7.45-7.36(m,4H),6.96(d,J=7.5Hz,1H),4.02(s,2H),2.78(d,J=19.0Hz,1H),2.54(d,J=19.0Hz,1H),2.49(s,3H),1.11(s,3H),0.75(s,3H);13C NMR(151MHz,CDCl3)δ202.2,176.9,155.6,145.6,135.7,135.4,134.7,129.8,129.1,128.1,124.0,55.2,49.5,48.2,42.6,21.7,21.5,18.5;HRMS:(ESI)calcd for C21H22NO4S+[M+H]+384.1264;found 384.1256.
实施例15:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3o(37.7mg,82%yield,94%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.93-7.87(m,2H),7.86-7.81(m,1H),7.51-7.42(m,2H),7.39-7.35(m,2H),7.34-7.30(m,3H),7.08-7.02(m,1H),6.98-6.88(m,2H),3.85(s,1H),3.80(d,J=10.8Hz,1H),3.52(d,J=10.8Hz,1H),2.48(s,3H),1.23(s,3H),0.68(s,3H);13CNMR(151MHz,CDCl3)δ203.9,176.6,156.5,145.5,136.8,136.1,135.9,134.7,129.8,129.3,129.0,128.2,128.1,124.4,124.0,57.5,53.6,52.7,50.1,22.2,21.8,18.7;HRMS:(ESI)calcd for C27H26NO4S+[M+H]+460.1577;found 460.1576.
实施例16:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1p(0.1mmol,32.5mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应48小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3p(34.0mg,79%yield,90%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.84(d,J=7.6Hz,1H),7.72-7.66(m,1H),7.53-7.47(m,3H),7.44(d,J=7.8Hz,1H),7.26-7.15(m,5H),6.81-6.75(m,2H),3.80(dd,J=10.1,7.6Hz,1H),3.74(s,1H),3.51(d,J=10.3Hz,1H),3.25(d,J=10.2Hz,1H),3.03(t,J=10.2Hz,1H),2.45(s,3H),2.39-2.32(m,1H),0.76(d,J=6.9Hz,3H);13C NMR(101MHz,CDCl3)δ204.5,155.5,143.3,137.4,137.0,135.8,134.4,129.6,129.0,128.9,128.8,127.4,127.2,124.1,123.8,58.2,56.3,54.2,53.4,46.3,21.5,10.7;HRMS:(ESI)calcdfor C26H26NO3S+[M+H]+432.1628;found 432.1636.
实施例17:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1q(0.1mmol,33.9mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3q(23.1mg,52%yield,90%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.91-7.86(m,1H),7.75-7.71(m,1H),7.70-7.66(m,2H),7.59-7.53(m,2H),7.32-7.28(m,2H),7.27-7.19(m,3H),6.88-6.81(m,2H),3.92(d,J=10.7Hz,1H),3.90(s,1H),3.82(d,J=10.7Hz,1H),3.00(q,J=7.1Hz,1H),2.47(s,3H),1.11(d,J=7.2Hz,3H);13C NMR(151MHz,CDCl3)δ203.2,172.8,154.2,145.2,136.8,136.1,135.7,135.0,129.6,129.6,129.4,129.2,128.2,128.0,124.6,123.5,57.8,52.6,51.3,50.3,21.8,8.9;HRMS:(ESI)calcd for C26H24NO4S+[M+H]+446.1421;found 446.1420.
实施例18:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1r(0.1mmol,42.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3r(33.3mg,63%yield,96%ee),白色固体。
1H NMR(400MHz,CDCl3)δ7.90-7.86(m,2H),7.85-7.83(m,1H),7.52-7.43(m,2H),7.38-7.34(m,2H),7.33-7.28(m,3H),7.13-7.08(m,1H),6.91(bs,2H),3.94(s,1H),3.74(d,J=10.9Hz,1H),3.46(d,J=10.9Hz,1H),3.06(s,3H),1.44-1.32(m,1H),1.31-1.26(m,1H),1.10-1.03(m,2H),1.00-0.93(m,2H),0.91-0.77(m,4H),0.74(t,J=7.3Hz,3H);13CNMR(151MHz,CDCl3)δ204.2,176.7,156.1,145.5,137.2,136.3,135.9,134.8,129.8,129.3,128.2,128.1,124.4,124.3,58.2,54.1,52.6,52.0,33.0,31.1,29.6,22.7,22.3,21.8,18.2,13.9;HRMS:(ESI)calcd for C32H36NO4S+[M+H]+530.2360;found 530.2350.
实施例19:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1s(0.1mmol,42.9mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3s(31.6mg,59%yield,97%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.94-7.86(m,3H),7.60-7.56(m,1H),7.54-7.50(m,1H),7.37(d,J=8.0Hz,2H),7.29-7.26(m,3H),7.19-7.10(m,4H),6.85-6.75(m,2H),6.63-6.58(m,2H),3.73(d,J=10.8Hz,1H),3.50(d,J=10.8Hz,1H),3.36(s,1H),2.87(d,J=14.4Hz,1H),2.50(s,3H),2.44(d,J=14.4Hz,1H),1.24(s,3H);13C NMR(151MHz,CDCl3)δ203.8,176.3,155.8,145.5,136.9,136.6,135.9,134.8,134.7,130.4,129.7,129.5,129.5,129.1,128.3,128.2,127.9,127.1,124.5,124.4,57.9,54.2,53.2,52.3,38.2,21.8,19.3;HRMS:(ESI)calcd for C33H30NO4S+[M+H]+536.1890;found 536.1886.
实施例20:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1t(0.1mmol,38.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3t(35.7mg,73%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.82-7.76(m,1H),7.69-7.62(m,2H),7.58-7.45(m,2H),7.38-7.29(m,3H),7.28-7.21(m,3H),6.86-6.75(m,2H),4.23(s,1H),4.22(d,J=10.1Hz,1H),3.42(d,J=11.1Hz,1H),3.35(d,J=10.6Hz,1H),3.21(s,3H),3.09(d,J=10.6Hz,1H),2.48(s,3H),1.22(s,3H);13C NMR(151MHz,CDCl3)δ204.0,171.6,155.3,144.0,137.7,136.4,135.7,133.7,129.9,129.4,129.1,128.4,127.9,127.3,125.7,123.5,58.6,57.8,55.3,54.9,54.3,51.7,22.5,21.6;HRMS:(ESI)calcd for C28H28NO5S+[M+H]+490.1683;found 490.1680.
实施例21:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1u(0.1mmol,40.1mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3u(41.7mg,80%yield,97%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.99-7.90(m,1H),7.58-7.52(m,1H),7.45-7.37(m,3H),7.36-7.33(m,1H),7.32-7.26(m,3H),7.11-7.06(m,1H),7.04-6.94(m,3H),6.87-6.78(m,3H),6.77-6.70(m,2H),4.14(s,1H),3.96(d,J=10.7Hz,1H),3.57(d,J=10.8Hz,1H),2.50(s,3H),1.56(s,3H);13C NMR(151MHz,CDCl3)δ202.8,174.8,154.7,145.7,136.9,136.72,136.68,134.9,134.5,129.8,129.34,129.25,128.6,128.4,128.2,128.0,127.4,127.1,125.4,124.0,59.2,59.0,55.7,51.1,21.8,20.3;HRMS:(ESI)calcd for C32H28NO4S+[M+H]+522.1734;found 522.1732.
实施例21:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1v(0.1mmol,43.1mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3v(45.2mg,82%yield,92%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.96-7.91(m,2H),7.59-7.54(m,1H),7.45-7.41(m,1H),7.40-7.37(m,2H),7.36-7.32(m,1H),7.31-7.25(m,3H),7.10(d,J=7.8Hz,1H),6.82(d,J=7.2Hz,2H),6.69-6.62(m,2H),6.53-6.48(m,2H),4.09(s,1H),3.96(d,J=10.8Hz,1H),3.65(s,3H),3.56(d,J=10.8Hz,1H),2.49(s,3H),1.52(s,3H);13C NMR(151MHz,CDCl3)δ202.9,175.0,158.5,154.9,145.6,136.7,136.7,134.9,134.6,129.8,129.3,129.2,128.8,128.5,128.3,128.3,128.1,125.3,124.0,113.2,59.2,58.5,55.8,55.1,51.1,21.8,20.4;HRMS:(ESI)calcd for C33H29NO5S+[M+H]+552.1839;found 552.1825.
实施例22:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1w(0.1mmol,41.9mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3w(47.4mg,88%yield,92%ee),白色固体。
1H NMR(600MHz,CDCl3)δ8.01-7.89(m,2H),7.57-7.53(m,1H),7.48-7.43(m,1H),7.41-7.38(m,2H),7.37-7.33(m,1H),7.32-7.27(m,3H),7.20-7.15(m,1H),6.86-6.82(m,2H),6.7-6.74(m,2H),6.70-6.64(m,2H),4.10(s,1H),3.96(d,J=10.8Hz,1H),3.56(d,J=10.8Hz,1H),2.49(s,3H),1.55(s,3H);13C NMR(151MHz,CDCl3)δ202.6,174.6,161.6(d,J=248.3Hz),154.9,145.8,136.53,136.45,135.2,134.4,132.6(d,J=3.4Hz),129.8,129.38,129.35,128.9(d,J=8.1Hz),128.5,128.30,128.24,125.0,124.1,114.8(d,J=21.3Hz),58.9,58.5,55.5,51.2,21.8,20.7;19F NMR(376MHz,CDCl3)δ-114.2(m);HRMS:(ESI)calcd for C32H27NFO4S+[M+H]+540.1639;found 540.1637.
实施例23:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1x(0.1mmol,46.5mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3x(52.0mg,91%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ8.01-7.96(m,2H),7.67-7.62(m,1H),7.54-7.50(m,1H),7.49-7.45(m,1H),7.44-7.40(m,3H),7.39-7.33(m,3H),7.32-7.26(m,4H),7.24(d,J=2.0Hz,1H),7.05-6.99(m,1H),6.89-6.80(m,2H),6.71-6.66(m,1H),4.24(s,1H),4.00(d,J=10.7Hz,1H),3.62(d,J=10.7Hz,1H),2.53(s,3H),1.64(s,3H);13C NMR(151MHz,CDCl3)δ202.7,174.9,154.0,145.7,136.9,136.7,134.7,134.6,134.6,132.4,132.0,129.9,129.3,128.6,128.4,128.2,128.0,127.4,127.2,126.4,126.3,126.1,125.7,124.8,124.0,59.6,59.3,56.0,50.93,2.78,20.3;HRMS:(ESI)calcd for C36H30NO4S+[M+H]+572.1890;found 572.1893
实施例24:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1x(0.1mmol,46.5mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3x(52.0mg,91%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ8.01-7.96(m,2H),7.67-7.62(m,1H),7.54-7.50(m,1H),7.49-7.45(m,1H),7.44-7.40(m,3H),7.39-7.33(m,3H),7.32-7.26(m,4H),7.24(d,J=2.0Hz,1H),7.05-6.99(m,1H),6.89-6.80(m,2H),6.71-6.66(m,1H),4.24(s,1H),4.00(d,J=10.7Hz,1H),3.62(d,J=10.7Hz,1H),2.53(s,3H),1.64(s,3H);13C NMR(151MHz,CDCl3)δ202.7,174.9,154.0,145.7,136.9,136.7,134.7,134.6,134.6,132.4,132.0,129.9,129.3,128.6,128.4,128.2,128.0,127.4,127.2,126.4,126.3,126.1,125.7,124.8,124.0,59.6,59.3,56.0,50.93,2.78,20.3;HRMS:(ESI)calcd for C36H30NO4S+[M+H]+572.1890;found 572.1893
实施例25:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1y(0.1mmol,35.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应72小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3y(15.6mg,34%yield,98%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.90-7.86(m,1H),7.75-7.70(m,1H),7.66-7.61(m,2H),7.60-7.53(m,2H),7.31-7.26(m,2H),7.25-7.18(m,3H),6.91-6.84(m,2H),3.95(s,1H),3.87(d,J=10.7Hz,1H),3.81(d,J=10.7Hz,1H),2.88-2.84(m,1H),2.47(s,3H),1.95-1.90(m,1H),1.51-1.45(m,1H),0.80(t,J=7.5Hz,3H);13C NMR(151MHz,CDCl3)δ203.3,172.6,145.0,136.6,136.1,135.4,135.0,129.6,129.6,129.5,129.1,128.2,127.9,124.5,123.6,57.8,55.8,53.0,51.1,21.7,18.9,12.5;HRMS:(ESI)calcd for C27H26NO4S+[M+H]+460.1577;found 460.1576.
实施例26:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1z(0.1mmol,36.7mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应72小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3z(19.9mg,42%yield,97%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.94-7.92(m,2H),7.84-7.81(m,1H),7.49-7.45(m,1H),7.42-7.39(m,1H),7.38-7.36(m,2H),7.35-7.31(m,3H),6.97-6.93(m,3H),3.90(s,1H),3.75(d,J=10.9Hz,1H),3.60(d,J=10.9Hz,1H),2.49(s,3H),1.78-1.74(m,1H),1.66-1.62(m,1H),0.76(t,J=7.5Hz,3H),0.61(s,3H);13C NMR(151MHz,CDCl3)δ204.1,175.2,157.2,145.5,137.0,136.2,135.8,135.0,129.7,129.3,129.2,128.9,128.3,128.1,124.3,123.8,57.0,54.3,53.3,52.8,28.3,21.7,15.2,8.9;HRMS:(ESI)calcd forC28H28NO4S+[M+H]+474.1734;found 474.1731.
实施例27:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1aa(0.1mmol,46.3mg),邻硼酸苯甲醛2a(0.3mmol,45.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应72小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3aa(14.2mg,30%yield,95%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.83(d,J=7.5Hz,1H),7.64-7.61(m,2H),7.60-7.56(m,1H),7.53-7.47(m,1H),7.36(d,J=7.9Hz,1H),7.31(d,J=8.0Hz,2H),7.27-7.21(m,3H),6.80(s,2H),4.01(s,1H),3.51(d,J=11.1Hz,1H),3.24(d,J=11.4Hz,1H),3.22(d,J=10.6Hz,1H),3.07(d,J=10.5Hz,1H),2.47(s,3H),1.39-1.03(m,17H),0.92-0.75(m,3H),0.73-0.63(m,1H),0.53-0.43(m,1H);13C NMR(151MHz,CDCl3)δ206.0,158.3,143.7,138.6,136.6,135.8,134.2,129.7,129.0,128.8,127.7,127.2,126.2,123.7,59.6,58.2,56.3,55.4,50.6,29.7,29.3,28.9,26.8,25.9,22.8,22.7,22.6,21.9,21.5,20.4,18.5;HRMS:(ESI)calcd for C28H28NO4S+[M+H]+474.1734;found 474.1731.
实施例28:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2b(0.3mmol,54.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ab(41.1mg,84%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.89(d,J=8.3Hz,2H),7.38-7.34(m,2H),7.34-7.30(m,3H),7.23(d,J=2.6Hz,1H),7.00(dd,J=8.6,2.6Hz,1H),6.97-6.92(m,2H),6.90(d,J=8.5Hz,1H),3.86(s,3H),3.85(d,J=2.8Hz,1H),3.76(d,J=10.8Hz,1H),3.50(d,J=10.8Hz,1H),2.48(s,3H),1.22(s,3H),0.69(s,3H);13C NMR(151MHz,CDCl3)δ203.9,176.7,160.5,149.2,145.5,137.4,137.0,134.7,129.8,129.3,128.9,128.2,128.1,125.2,124.8,105.3,58.0,55.7,53.1,52.8,50.0,22.2,21.7,18.6;HRMS:(ESI)calcd forC28H28NO5S+[M+H]+490.1683;found 490.1677.
实施例29:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2c(0.3mmol,76.8mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ac(50.3mg,89%yield,93%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.92-7.87(m,2H),7.45-7.40(m,4H),7.40-7.30(m,7H),7.07(dd,J=8.6,2.6Hz,1H),6.96-6.93(m,2H),6.90(d,J=8.6Hz,1H),5.09(s,2H),3.85(s,1H),3.77(d,J=10.8Hz,1H),3.50(d,J=10.9Hz,1H),2.47(s,3H),1.23(s,3H),0.70(s,3H);13C NMR(151MHz,CDCl3)δ203.8,176.7,159.7,149.4,145.5,137.4,137.0,135.8,134.7,129.7,129.3,128.9,128.7,128.4,128.2,128.1,127.7,125.7,124.9,106.4,70.5,58.0,53.2,52.8,50.0,22.2,21.8,18.7;HRMS:(ESI)calcd for C34H32NO5S+[M+H]+566.1996;found 566.1998.
实施例30:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2d(0.3mmol,55.2mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ad(30.1mg,61%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.89(d,J=8.3Hz,2H),7.79(d,J=2.1Hz,1H),7.40(dd,J=8.4,2.1Hz,1H),7.37(d,J=8.1Hz,2H),7.35-7.32(m,3H),7.01(d,J=8.3Hz,1H),6.96-6.89(m,2H),3.87(s,1H),3.77(d,J=10.9Hz,1H),3.50(d,J=10.9Hz,1H),2.48(s,3H),1.22(s,3H),0.70(s,3H);13C NMR(151MHz,CDCl3)δ202.6,176.3,154.5,145.7,137.4,136.4,136.0,135.9,134.6,129.8,129.4,128.9,128.3,128.2,125.3,124.2,57.7,53.4,52.4,50.0,22.1,21.7,18.6;HRMS:(ESI)calcd for C27H25ClNO4S+[M+H]+494.1187;found494.1182.
实施例31:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2e(0.3mmol,84.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ae(30.1mg,61%yield,90%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.89(d,J=8.3Hz,2H),7.36(d,J=8.1Hz,2H),7.32-7.29(m,3H),7.21-7.18(m,1H),6.95-6.88(m,4H),3.84(s,1H),3.78(d,J=10.8Hz,1H),3.48(d,J=10.8Hz,1H),2.46(s,3H),1.83(s,1H),1.20(s,3H),0.68(s,3H);13C NMR(151MHz,CDCl3)δ204.3,177.0,157.2,148.7,145.7,137.4,136.8,134.6,129.8,129.3,128.9,128.1,128.1,124.9,124.7,109.2,58.0,53.1,52.9,50.2,22.1,21.7,18.6;HRMS:(ESI)calcd for C27H26NO5S+[M+H]+476.1526;found 476.1527.
实施例32:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2f(0.3mmol,50.1mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3af(36.7mg,77%yield,95%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.96-7.90(m,2H),7.84(dd,J=8.5,5.3Hz,1H),7.41-7.37(m,2H),7.35-7.31(m,3H),7.15(td,J=8.4,2.2Hz,1H),6.97-6.90(m,2H),6.37(dd,J=8.8,2.1Hz,1H),3.87(s,1H),3.71(d,J=11.1Hz,1H),3.55(d,J=11.1Hz,1H),2.49(s,3H),1.30(s,3H),0.70(s,3H);13C NMR(151MHz,CDCl3)δ202.05,176.13,168.48,166.76,159.35(d,J=9.1Hz),146.04,136.50,134.48,132.31(d,J=2.1Hz),129.95,129.40,128.89,128.25,128.02,126.76(d,J=10.6Hz),117.67(d,J=23.5Hz),110.92(d,J=23.5Hz),57.52,53.49,52.50,49.88,22.38,21.71,18.44;19F NMR(376MHz,CDCl3)δ-98.3(m);HRMS:(ESI)calcd for C27H25FNO4S+[M+H]+478.1483;found 478.1480.
实施例33:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2g(0.3mmol,63.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ag(41.1mg,79%yield,98%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.93-7.88(m,2H),7.36-7.31(m,5H),7.24(s,1H),6.99-6.96(m,2H),6.89(s,1H),3.94(s,3H),3.88(d,J=10.7Hz,1H),3.82(s,1H),3.77(s,3H),3.44(d,J=10.8Hz,1H),2.44(s,3H),1.22(s,3H),0.73(s,3H);13C NMR(151MHz,CDCl3)δ202.5,177.0,156.7,152.0,150.7,145.5,137.2,135.0,129.7,129.3,129.0,128.9,128.2,128.0,104.8,104.2,57.2,56.4,56.2,53.3,52.5,50.0,22.2,21.7,18.4;HRMS:(ESI)calcd for C29H30NO6S+[M+H]+520.1788;found 520.1783.
实施例34:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2h(0.3mmol,58.0mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ah(36.7mg,73%yield,97%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.92-7.87(m,2H),7.39-7.34(m,2H),7.33-7.29(m,3H),7.14(s,1H),6.98-6.91(m,2H),6.24(s,1H),6.10(d,J=1.1Hz,1H),6.07(d,J=1.1Hz,1H),3.82(s,1H),3.71(d,J=10.9Hz,1H),3.47(d,J=11.0Hz,1H),2.46(s,3H),1.24(s,3H);13C NMR(151MHz,CDCl3)δ201.7,176.6,155.4,154.0,149.5,145.7,137.0,134.6,131.0,129.9,129.3,128.9,128.1,103.3,102.8,102.5,57.7,53.2,52.6,50.0,22.4,21.8,18.4;HRMS:(ESI)calcd for C28H26NO6S+[M+H]+504.1475;found 504.1476.
实施例35:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2i(0.3mmol,50.4mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3ai(22.9mg,48%yield,91%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.89(d,J=8.3Hz,2H),7.45(td,J=8.1,5.0Hz,1H),7.39-7.31(m,5H),7.12(t,J=8.5Hz,1H),6.99-6.93(m,2H),6.91(d,J=7.7Hz,1H),3.85(s,1H),3.82(d,J=10.9Hz,1H),3.50(d,J=11.0Hz,1H),2.48(s,3H),1.22(s,3H),0.71(s,3H);13C NMR(151MHz,CDCl3)δ199.9,176.3,158.71(d,J=267.1Hz),158.4,145.6,138.1(d,J=8.4Hz),136.3,134.6,129.8,129.4,128.9,128.3,128.2,124.0(d,J=12.9Hz),119.8(d,J=4.2Hz),116.4(d,J=18.8Hz),57.9,53.5,52.4,50.1,22.2,21.7,18.6;19F NMR(376MHz,CDCl3)δ-111.8(m);HRMS:(ESI)calcd for C27H25FNO4S+[M+H]+478.1483;found 478.1477.
实施例36:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),邻硼酸苯甲醛2j(0.6mmol,93.6mg),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应72小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯3aj(18.6mg,40%yield,67%ee),白色固体。
1H NMR(600MHz,CDCl3)δ7.89-7.87(m,3H),7.38-7.32(m,5H),7.06-7.04(m,2H),6.62-6.61(m,1H),4.10(s,1H),3.73(d,J=10.7Hz,1H),3.37(d,J=10.7Hz,1H),2.46(s,3H),1.20(s,3H),0.78(s,3H);13C NMR(151MHz,CDCl3)δ194.4,176.2,169.7,145.6,142.5,140.8,136.4,134.7,129.8,129.4,129.0,128.2,128.1,122.0,61.5,53.3,51.8,49.4,21.7,21.4,18.3;HRMS:(ESI)calcd for C25H24NO4S2 +[M+H]+486.1141;found 486.1138.
实施例37:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1a(0.1mmol,33.9mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3a(28.9mg,65%yield,93%ee,92%D),白色固体。
实施例38:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1k(0.1mmol,51.5mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3k(44.6mg,72%yield,>20/1d.r,90%D),白色固体。
实施例39:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1o(0.1mmol,35.3mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3o(33.8mg,74%yield,93%ee,93%D),白色固体。
实施例40:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1p(0.1mmol,32.5mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3p(32.8mg,76%yield,90%ee,96%D),白色固体。
实施例41:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1q(0.1mmol,33.9mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3q(22.3mg,50%yield,90%ee,98%D),白色固体。
实施例42:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1t(0.1mmol,38.3mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3t(33.8mg,69%yield,90%ee,96%D),白色固体。
实施例43:
合成方程式如下:
制备方法如下:
惰性气氛下,向反应管中加入烯炔化合物1u(0.1mmol,40.1mg),氘代邻硼酸苯甲醛[D]-3a(0.3mmol,45.3mg,99%D),四水合醋酸镍(0.01mmol,2.5mg),(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁(0.02mmol,9.6mg)与2毫升N-甲基吡咯烷酮,100℃下反应36小时,用乙酸乙酯与饱和氯化铵溶液萃取体系,合并有机相,用无水硫酸钠干燥,过滤,快速柱层析得到产物手性螺环茚酮-吡咯[D]-3u(39.6mg,78%yield,97%eeand 98%D),白色固体。
以上所述,仅为本发明较佳的具体实施方式,但本发明保护的范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内所做的任何修改,等同替换和改进等,均应包含在发明的保护范围之内。

Claims (8)

1.一种合成手性螺环茚酮-吡咯类化合物的方法,其特征在于,包括以下步骤:将四水合醋酸镍、(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁、烯炔类化合物A和邻硼酸苯甲醛类化合物B一起溶于溶剂N-甲基吡咯烷酮中,在惰性氛围下搅拌反应至完全,反应后分离提纯,即得到手性螺环茚酮-吡咯类化合物;
所述烯炔类化合物A的结构式为:
其中X选自氧或-CH2-中的一种,
R1选自如下结构之一:
R2基团为对甲苯磺酰基(-Ts);
R3基团选自氢(-H)、甲基(-Me)、正己基(-nHex)、苄基(-Bn)、甲酸甲酯(-COOMe)、苯基(-Ph)、对甲氧基苯基对氟苯基/>萘基中的一种;
R4基团选自氢(-H)、甲基(-Me)中的一种;R3基团、R4基团和烯烃可以构成一个脂肪基的大环,结构如下:
所述邻硼酸苯甲醛类物B结构式为:
其中R1、R2、R3、R4分别为相同或不同的基团,选自氢(-H)、烷氧基、苄氧基(-OBn)、氟(-F)、氯(-Cl)、羟基(-OH)中的一种;醛基的氢原子可以被氘原子取代以合成含氘类型的化合物;
所述手性螺环茚酮-吡咯类化合物的结构如下:
2.根据权利要求1所述的方法,其特征在于,在反应前,反应体系中各原料的浓度为:
烯炔化合物A的浓度为0.05mmol/L;邻硼酸苯甲醛化合物B浓度为0.15mmol/L~0.3mmol/L;四水合醋酸镍的浓度为0.005mmol/L;(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁浓度为0.01mol/L。
3.根据权利要求1所述的方法,其特征在于,所述反应温度为80-120℃。
4.根据权利要求1所述的方法,其特征在于,所述反应时间为36-72小时。
5.根据权利要求1所述的方法,其特征在于,所述分离提纯包括萃取和柱层析。
6.根据权利要求1所述的方法,其特征在于,包括以下步骤:在惰性气体的保护下,将烯炔化合物A、邻硼酸苯甲醛化合物B、四水合醋酸镍与(S)-1-(二苯基膦基)-2-[(S)-4-异丙基恶唑啉-2-基]二茂铁加入反应管中,加入N-甲基吡咯烷酮作为溶剂,封闭反应管,80-120℃下反应完全,萃取体系三次,合并有机相,加入无水硫酸钠干燥,过滤,柱层析后真空抽干得到手性螺环茚酮-吡咯类产物。
7.根据权利要求6所述的方法,其特征在于:所述萃取体系为乙酸乙酯或二氯甲烷和水或饱和NH4Cl水溶液。
8.根据权利要求6所述的方法,其特征在于:所述柱层析的展开剂为乙酸乙酯:石油醚的体积比为40:1~5:1。
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