CN107746392B - 一种含桥环结构的恶唑烷类化合物的制备方法 - Google Patents

一种含桥环结构的恶唑烷类化合物的制备方法 Download PDF

Info

Publication number
CN107746392B
CN107746392B CN201711270101.0A CN201711270101A CN107746392B CN 107746392 B CN107746392 B CN 107746392B CN 201711270101 A CN201711270101 A CN 201711270101A CN 107746392 B CN107746392 B CN 107746392B
Authority
CN
China
Prior art keywords
nmr
bridged ring
solvent
cdcl
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201711270101.0A
Other languages
English (en)
Other versions
CN107746392A (zh
Inventor
白大昌
彭卓金
李娜
李兴伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Normal University
Original Assignee
Henan Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Normal University filed Critical Henan Normal University
Priority to CN201711270101.0A priority Critical patent/CN107746392B/zh
Publication of CN107746392A publication Critical patent/CN107746392A/zh
Application granted granted Critical
Publication of CN107746392B publication Critical patent/CN107746392B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D261/00Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/20Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00Preparation of quinones
    • C07C46/02Preparation of quinones by oxidation giving rise to quinoid structures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

本发明公开了一种桥环结构的恶唑烷类化合物的制备方法,属于有机合成技术领域。利用硝酮与亚甲基环丙烷,在铑催化剂和氧化剂存在下,进行加成反应直接构建碳‑氧键和碳‑碳键,得到桥环结构的恶唑烷类化合物。本发明方法原料廉价易得、反应条件温和、原子经济性好、选择性高、后处理简单、收率高,为桥环结构的恶唑烷类化合物提供了一种快速合成途径。

Description

一种含桥环结构的恶唑烷类化合物的制备方法
技术领域
本发明涉及有机催化技术领域,具体地涉及一种含桥环结构恶唑烷类化合物的制备方法。
背景技术
恶唑烷不仅仅是一个非常有用的合成中间体,也广泛存在于医药、农药以及天然产物中间体中。另外桥环化合物的制备是合成中的一大难点,虽然人们发展了一些含桥环结构化合物的方法,但这些方法往往步骤较多,效率不高,生产成本较大,而且灵活性不高。现有技术中含桥环结构的恶唑烷类化合物,普遍存在合成难度大、反应危险性高、反应步骤长、反应收率低、原子经济性低等缺陷。
因此,开发一种更为简便的合成方法制备桥环化合物在工业中的应用具有重要的意义。
发明内容
为了克服上述缺陷,本发明提供了一种桥环结构的恶唑烷类化合物及制备方法,利用比较常用的铑催化剂,通过硝酮的C-H键活化,然后对亚甲基环丙烷进行加成直接构建碳-氧键和碳-碳键,一步反应高效、高选择性的合成含桥环结构的恶唑烷类化合物。
一种含桥环结构的恶唑烷类化合物的制备方法,其特征在于,包括如下操作:在有机溶剂中,在铑催化剂和氧化剂存在下,硝酮1与亚甲基环丙烷2 发生加成反应得到含桥环结构的恶唑烷类化合物3;反应方程式如下:
Figure BDA0001495403010000011
其中:
R1选自:氢、C1-C6烷基、C1-C3烷氧基、氟、氯、溴、碘、甲酸酯基、硝基、氨基、羟基、三氟甲基等。
R2选自:C1-C6烷基。
R3选自:氢、C1-C6烷基、C1-C3基、氟、氯、溴、碘、甲酸酯基、硝基、三氟甲基等。
进一步地,在上述技术方案中,所述铑催化剂选自三价铑盐或含铑络合物。三价铑盐选自五甲基环戊二烯基五氯化铑二聚体、五甲基环戊二烯基二乙酸铑一种或多种;所述含铑络合物为五甲基环戊二烯基三乙腈六氟磷酸铑、五甲基环戊二烯基三乙腈四氟硼酸铑的中的一种或多种。
进一步地,在上述技术方案中,所述氧化剂包括醋酸银、醋酸铜、硝酸银、特戊酸银、碳酸银、苯乙酸银的一种或多种。优选醋酸银。氧化剂与五元环酰亚胺1摩尔比为1.0-4.0,优选为2.5。
进一步地,在上述技术方案中,所述有机溶剂为醇类溶剂、腈类溶剂、醚类溶剂和酰胺类溶剂中的一种或多种。优选三氟乙醇溶剂。
进一步地,在上述技术方案中,所述铑催化剂与硝酮的摩尔比为0.02-1: 1;亚甲基环丙烷2与硝酮1摩尔比值为0.5-4:1,优选摩尔比为2.5:1;氧化剂与硝酮摩尔比为1.0~6.0。
进一步地,在上述技术方案中,所述加成反应的温度为0-100℃,优选反应温度是30-50℃。
进一步地,在上述技术方案中,所述加成反应在惰性气体保护下或者空气中进行,惰性气体为氮气、氩气或氦气。
进一步地,在上述技术方案中,当添加0.1-2.0当量无机碱时,例如碳酸钾、醋酸钠、碳酸锂等,以及醋酸锌、醋酸镁、甲醇镁等对反应均无影响。
进一步地,在上述技术方案中,得到的含桥环结构的恶唑烷类化合物3 可以进行进一步衍生,得到多种不同类型的衍生物。以3a衍生为例,反应方程式如下:
Figure BDA0001495403010000031
桥环结构恶唑烷3a在有机溶剂中用氢化锂铝还原成相应的二芳基甲烷 4a。
桥环结构恶唑烷3a在有机溶剂中在臭氧作用下氧化,得到相应的羟基双酮5a。
发明有益效果:
1)硝酮与亚甲基环丙烷反应,一步即可高效、高选择性合成含桥环结构恶唑烷类化合物;
2)反应原料来源方便、底物合成容易,催化剂也为常见催化剂,为克级以上规模合成该类化合物提供了新途径;
3)含桥环结构的恶唑烷类化合物3可以进行进一步衍生,得到多种不同类型的衍生物。
具体实施例
下面通过实施例的方式进一步说明本发明,但并不因此将本发明限制在所述的实施例范围之中。下列实施例中未注明具体条件的实验方法,按照常规方法和条件,或按照商品说明书选择。
实施例1:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000032
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000041
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3a
Figure BDA0001495403010000042
总收率84%,1H NMR、13CNMR的纯度均大于95%。
1H NMR(400MHz,CDCl3)δ7.80(d,J=7.8Hz,1H),7.44(s,4H),7.29(s, 1H),7.25(t,J=7.6Hz,1H),7.18(t,J=7.3Hz,1H),7.09(d,J=7.3Hz,1H), 5.46(d,J=5.5Hz,1H),4.31(d,J=4.9Hz,1H),2.33(s,1H),2.02(t,J=10.2 Hz,1H),1.35(s,9H),1.18(s,9H).13CNMR(101MHz,CDCl3)δ150.1,142.4, 136.9,134.0,132.8,129.4,127.6,127.5,125.9,125.3,124.7,123.7,73.3,59.7, 58.8,37.9,34.6,31.4,26.8.HRMS(ESI,m/z):理论值C25H32NO[M+H]+: 362.2478,测试值:362.2480.
实施例2:
将[Cp*RhCl2]2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000043
(0.200mmol, 1.00equiv)和亚甲基环丙烷
Figure BDA0001495403010000044
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3b
Figure BDA0001495403010000045
总收率44%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ8.03(s,1H),7.48–7.40(m,5H),7.35(s, 1H),7.20(d,J=7.9Hz,1H),5.48(d,J=5.4Hz,1H),4.36(d,J=4.9Hz, 1H),2.44–2.24(m,1H),2.00(d,J=11.3Hz,1H),1.35(s,9H),1.19(s, 9H).19F NMR(565MHz,CDCl3)δ-62.52(s).13C NMR(151MHz,CDCl3)δ 150.7,145.6,135.8,133.8,133.3,130.0(J=32.5Hz),129.5,126.5,126.3, 125.5(J=271.8Hz),125.4,124.0(J=3.2Hz),120.8(J=3.2Hz),73.1,59.2,59.1,37.3,34.7,31.3,26.7.HRMS(ESI,m/z):calcd for C26H31F3NO[M+H]+: 430.2352,found 430.2352.
实施例3:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000051
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000052
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3c
Figure BDA0001495403010000053
总收率72%,1H NMR、13CNMR的纯度均大于95%。
mp 176-178℃,1H NMR(600MHz,CDCl3)δ7.91(s,1H),7.43(s,4H),7.29(d, J=8.0Hz,1H),7.24(s,1H),6.96(d,J=8.0Hz,1H),5.44(d,J=5.5Hz,1H), 4.28(d,J=4.9Hz,1H),2.32(s,1H),1.96(d,J=11.2Hz,1H),1.35(s,9H),1.17 (s,9H).13C NMR(151MHz,CDCl3)δ150.5,141.1,135.8,135.2,133.4,130.2, 129.4,127.4,126.8,126.1,125.4,121.6,73.0,59.1,58.9,37.6,34.7,31.3,26.7. HRMS(ESI,m/z):calcd forC25H31BrNO[M+H]+:440.1584,found 440.1594.
实施例4:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000061
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000062
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3d
Figure BDA0001495403010000063
总收率88%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.68(d,J=8.0Hz,1H),7.41(m,4H),7.21(s,1H), 7.06(d,J=8.0Hz,1H),6.89(s,1H),5.44(d,J=5.5Hz,1H),4.25(d,J=4.6Hz, 1H),2.33(m,4H),1.99(d,J=11.1Hz,1H),1.34(s,9H),1.18(s,9H).13C NMR (151MHz,CDCl3)δ149.9,142.3,137.4,137.0,134.1,130.0,129.4,128.4,126.6, 125.3,123.7,73.5,59.7,58.8,38.0,34.6,31.4,29.7,26.8,21.2.HRMS(ESI,m/z): calcd for C 26H 34N O[M+H]+:376.2635,found 376.2644.
实施例5:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000064
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000065
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3e
Figure BDA0001495403010000066
总收率62%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.67(d,J=7.8Hz,1H),7.43(m,4H),7.26(s,1H), 7.12(t,J=7.8Hz,1H),7.03(d,J=7.8Hz,1H),5.45(d,J=5.6Hz,1H),4.62(d, J=5.2Hz,1H),2.40(s,3H),2.32(m,1H),1.96(d,J=11.2Hz,1H),1.35(s,9H), 1.23(s,9H).13C NMR(101MHz,CDCl3)δ149.9,140.6,137.4,134.2,132.9, 132.7,129.6,129.4,127.0,125.3,124.4,121.8,73.3,58.9,55.0,37.7,34.6,31.4, 27.2,19.5.HRMS(ESI,m/z):calcdforC26H34NO[M+H]+:376.2635,found 376.2644.
实施例6:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000071
(0.200mmol, 1.00equiv)和亚甲基环丙烷
Figure BDA0001495403010000072
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3f
Figure BDA0001495403010000073
总收率75%,1H NMR、13CNMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ8.48(s,1H),7.85(d,J=7.8Hz,1H),7.45(q,J=8.4Hz,4H),7.41(s,1H),7.16(d,J=7.8Hz,1H),5.47(d,J=5.4Hz,1H),4.35 (d,J=4.9Hz,1H),3.93(s,3H),2.43–2.30(m,1H),1.99(d,J=11.3Hz,1H), 1.35(s,9H),1.19(s,9H).13C NMR(101MHz,CDCl3)δ167.0,150.4,146.7, 135.9,133.5,133.3,129.4,129.4,128.5,126.2,126.0,125.4,125.2,73.1,59.3, 59.1,52.2,37.3,34.7,31.3,26.7.HRMS(ESI,m/z):calcd for C27H34NO3[M+H]+: 420.2533,found 420.2536.
实施例7:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000074
(0.200mmol, 1.00equiv)和亚甲基环丙烷
Figure BDA0001495403010000081
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3g
Figure BDA0001495403010000082
总收率43%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ8.65(d,J=1.9Hz,1H),8.03(dd,J=8.2,2.1Hz, 1H),7.46(s,4H),7.43(s,1H),7.24(d,J=8.2Hz,1H),5.50(d,J=5.4Hz,1H), 4.41(d,J=5.0Hz,1H),2.46–2.31(m,1H),2.01(d,J=11.5Hz,1H),1.36(s, 9H),1.20(s,9H).13C NMR(151MHz,CDCl3)δ151.0,148.4,147.7,135.1, 134.9,132.9,129.5,127.9,126.7,125.5,122.2,119.0,72.8,59.3,59.0,37.0,34.7, 31.3,26.7.HRMS(ESI,m/z):calcd forC25H31N2O3[M+H]+:407.2329,found 407.2330.
实施例8:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000083
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000084
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3h
Figure BDA0001495403010000085
总收率64%,1H NMR、13CNMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.77(d,J=5.2Hz,1H),7.44(q,J=8.4Hz,4H), 7.11(td,J=7.8,5.0Hz,1H),6.97(dd,J=12.9,8.2Hz,1H),6.90(d,J=7.2Hz, 1H),5.42(d,J=5.4Hz,1H),4.33(d,J=4.0Hz,1H),2.36–2.23(m,1H),1.97 (d,J=11.2Hz,1H),1.35(s,10H),1.19(s,9H).19F NMR(565MHz,CDCl3)δ -108.84.13C NMR(151MHz,CDCl3)δ162.5(d,J=253.7Hz),150.2,145.1, 134.5,134.3(d,J=4.5Hz),132.5(d,J=22.3Hz,1H),129.6,128.0(d,J=10.0 Hz),125.2,121.6,120.9,116.0(d,J=25.2Hz),73.5,59.7,58.9,37.1,34.7,31.4, 26.7.HRMS(ESI,m/z):calcd for C25H31FNO[M+H]+:380.2384,found380.2376.
实施例9:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000091
(0.200mmol, 1.00equiv)和亚甲基环丙烷
Figure BDA0001495403010000092
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3g
Figure BDA0001495403010000093
总收率56%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.40(m,4H),7.31(d,J=2.2Hz,1H),7.23(s, 1H),7.02(d,J=8.2Hz,1H),6.74(dd,J=8.2,2.3Hz,1H),5.44(d,J=5.5 Hz,1H),4.29(d,J=4.2Hz,1H),3.82(s,3H),2.33(s,1H),1.97(d,J=11.0 Hz,1H),1.35(s,9H),1.16(s,9H).13C NMR(151MHz,CDCl3)δ159.2, 150.2,137.0,135.5,134.0,133.9,129.4,126.9,125.3,124.9,113.2,109.1, 73.2,59.1,58.7,55.5,38.2,34.6,31.4,26.8.HRMS(ESI,m/z):calcd for C26H34NO2[M+H]+:392.2584,found 392.2575。
实施例10:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000101
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000102
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3k
Figure BDA0001495403010000103
总收率43%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.78(d,J=7.8Hz,1H),7.45(m,2H),7.25(d,J=3.9Hz,2H),7.20(t,J=7.3Hz,1H),7.09(m,3H),5.35(d,J=5.4Hz,1H),4.33 (s,1H),2.35(s,1H),2.02(d,J=11.1Hz,1H),1.18(s,9H).19F NMR(565MHz, CDCl3)δ-114.87.13C NMR(151MHz,CDCl3)δ162.0(d,J=246.8Hz),142.4, 137.5,132.8(d,J=3.3Hz),132.5,131.3(d,J=7.9Hz),127.8,127.7(d,J= 14.1Hz),126.0,123.7,115.3(d,J=21.4Hz),73.1,59.7,58.9,37.9,26.7.HRMS (ESI,m/z):calcd for C21H 23FNO[M+H]+:324.1758,found324.1773.
实施例11:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000104
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000105
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3l
Figure BDA0001495403010000106
总收率33%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.78(d,J=7.8Hz,1H),7.44(d,J=8.3Hz,2H), 7.25(s,1H),7.26-7.24(d,J=7.8Hz,1H),7.17(t,J=7.2Hz,1H),7.08(d,J= 7.1Hz,1H),6.94(d,J=8.4Hz,2H),5.41(d,J=5.3Hz,1H),4.31(s,1H),3.84 (s,3H),2.34(s,1H),2.01(d,J=11.0Hz,1H),1.18(s,9H).13C NMR(151MHz, CDCl3)δ158.8,142.3,136.2,131.0,129.4,127.6,127.4,125.9,124.6,123.6, 113.9,73.3,59.7,58.9,55.4,37.9,26.7.HRMS(ESI,m/z):calcd for C22H26NO2 [M+H]+:336.1958,found 336.1948.
实施例12:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000111
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000112
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3m
Figure BDA0001495403010000113
总收率84%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.82(d,J=7.8Hz,1H),7.46(d,J=7.1Hz,1H), 7.29–7.17(m,6H),7.10(d,J=7.2Hz,1H),5.26(d,J=5.6Hz,1H),4.31(d,J= 4.4Hz,1H),2.33(s,3H),2.33(s,1H),2.02(d,J=11.1Hz,1H),1.15(s,9H).13C NMR(151MHz,CDCl3)δ142.1,137.4,137.1,136.0,132.6,130.3,129.8,127.6, 127.6,127.4,126.0,125.7,123.9,123.4,73.5,59.7,58.8,37.7,26.8,20.3.HRMS (ESI,m/z):calcd for C22H26NO[M+H]+:320.2009,found 320.2005.
实施例13:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000121
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000122
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3n
Figure BDA0001495403010000123
总收率68%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.79(d,J=7.8Hz,1H),7.35(dd,J=14.3,7.5Hz, 1H),7.26(m,3H),7.20(m,2H),7.11(d,J=7.2Hz,1H),6.98(t,J=7.8Hz,1H), 5.38(d,J=5.4Hz,1H),4.33(d,J=4.0Hz,1H),2.36(s,1H),2.02(d,J=11.1 Hz,1H),1.18(s,9H).13CNMR(151MHz,CDCl3)δ162.8(d,J=245.5Hz,1H), 139.1(d,J=7.9Hz,1H),138.4,132.3,129.8(d,J=8.5Hz,1H),128.0,127.7, 126.0,125.5,125.4,123.9,123.5,116.4(d,J=21.5Hz,2H),114.0(d,J=21.2 Hz,1H),73.1,59.7,58.9,38.0,26.7.HRMS(ESI,m/z):calcd for C21H23FNO[M +H]+:324.1758,found 324.1751.19F NMR(565MHz,CDCl3):δ-74.22(m).
实施例14:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000124
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000125
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3o
Figure BDA0001495403010000131
总收率62%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.78(d,J=7.8Hz,1H),7.45(s,1H),7.39(d,J= 7.5Hz,1H),7.32(t,J=7.8Hz,1H),7.26(d,J=8.0Hz,2H),7.23–7.18(m, 2H),7.11(d,J=7.2Hz,1H),5.35(d,J=5.5Hz,1H),4.33(d,J=4.6Hz,1H), 2.36(s,1H),2.01(d,J=11.1Hz,1H),1.18(s,9H).13C NMR(151MHz,CDCl3) δ142.7,138.7,138.6,134.2,132.2,129.6,129.6,128.0,127.8,127.7,127.2, 126.0,123.9,123.3,73.0,59.6,58.9,37.9,26.7.HRMS(ESI,m/z):calcd for C21H23ClNO[M+H]+:340.1463,found 340.1461.
实施例15:
将Cp*Rh(OAc)2(7.0mg,0.010mmol,0.050equiv),AgOAc(80mg, 0.500mmol,2.50equiv)加入到25mL的封管中,在氮气保护下加入磁子和1 mL溶剂CF3CH2OH,搅拌10分钟后,再将硝酮
Figure BDA0001495403010000132
(0.200mmol,1.00 equiv)和亚甲基环丙烷
Figure BDA0001495403010000133
(0.500mmol,2.50equiv)加入到封管中,反应在40℃搅拌24h后,硅藻土过滤,用15mL乙酸乙酯洗。将有机层旋干直接进行柱层析得到产物3p
Figure BDA0001495403010000134
总收率53%,1H NMR、13C NMR的纯度均大于95%。
1H NMR(600MHz,CDCl3)δ7.87(d,J=7.8Hz,1H),7.66(d,J=7.4Hz,1H), 7.61(d,J=8.0Hz,1H),7.37(t,J=7.5Hz,1H),7.30-7.26(m,2H),7.22(t,J= 7.3Hz,1H),7.16(t,J=7.6Hz,1H),7.11(d,J=7.3Hz,1H),5.23(d,J=5.5Hz, 1H),4.34(d,J=3.9Hz,1H),2.35(s,1H),2.06(d,J=11.2Hz,1H),1.17(s, 9H).13C NMR(151MHz,CDCl3)δ142.4,138.0,137.0,132.5,132.3,132.0, 128.7,128.0,127.8,127.4,126.0,125.0,124.3,124.2,73.5,59.7,58.9,38.0,26.8. HRMS(ESI,m/z):calcd for C21H23BrNO[M+H]+:384.0958,found384.0929.
实施例16:
氩气保护下,将LAH加入到3a的THF溶液(2mL)中,加热60℃反应至原料消失后(TLC检测),加0.5mL水淬灭,无水硫酸钠干燥,柱层析纯化(PE:EA=10:1)得到产物4a,收率66%。1H NMR(400MHz,CDCl3)δ 8.06–7.99(m,1H),7.88–7.82(m,1H),7.75(d,J=8.2Hz,1H),7.50– 7.37(m,3H),7.33–7.25(m,3H),7.12(d,J=8.4Hz,2H),4.42(s,2H),1.28 (s,9H).13C NMR(101MHz,CDCl3)δ148.9,137.6,136.9,134.0,132.2, 128.7,128.4,127.3,127.1,126.0,125.6,125.6,125.4,124.4,38.5,34.4,31.4.
实施例17:
将O3通入到3a(76.1mg,0.2mmol)的DCM(2.0mL)溶液中至溶液变为蓝色,加入PPh3(65mg,0.28mmol)室温搅拌10分钟.硅藻土过滤,减压除去溶剂,柱层析纯化(PE:EA=10:1)得到相应的产物5a(26.4mg),收率 75%。1H NMR(400MHz,CDCl3)δ8.11(dd,J=5.7,3.3Hz,2H),7.81(dd,J=5.8,3.3Hz,2H),4.81(dd,J=12.5,6.6Hz,1H),3.87(s,1H),3.52(dd,J=16.0, 6.6Hz,1H),3.03(dd,J=16.0,12.5Hz,1H).13C NMR(151MHz,CDCl3)δ 198.0,193.3,136.0,135.0,134.8,133.1,127.1,127.0,71.7,46.4。

Claims (5)

1.一种含桥环结构的恶唑烷类化合物的制备方法,其特征在于,包括如下:在有机溶剂中,在铑催化剂和氧化剂存在下,硝酮1与亚甲基环丙烷2发生加成反应得到含桥环结构的恶唑烷类化合物3;反应方程式如下:
Figure FDA0002596084050000011
其中:R1选自:氢、C1-C6烷基、C1-C3烷氧基、氟、氯、溴、碘、甲酸酯基、硝基、氨基、羟基或三氟甲基;R2选自:C1-C6烷基;R3选自:氢、C1-C6烷基、氟、氯、溴、碘、甲酸酯基、硝基、三氟甲基;所述铑催化剂选自Cp*Rh(OAc)2或[Cp*RhCl2]2,氧化剂选自AgOAc。
2.根据权利要求1所述一种含桥环结构的恶唑烷类化合物的制备方法,其特征在于:所述有机溶剂为醇类溶剂、腈类溶剂、醚类溶剂和酰胺类溶剂中的一种或多种。
3.根据权利要求1所述一种含桥环结构的恶唑烷类化合物的制备方法,其特征在于:所述铑催化剂、硝酮1与亚甲基环丙烷2摩尔比为0.02-1:1:0.5-4;所述加成反应温度为0~100℃。
4.根据权利要求1所述一种含桥环结构的恶唑烷类化合物的制备方法,其特征在于:所述加成反应在氮气、氩气、氦气或空气中进行。
5.一种制备二芳基甲烷4a和羟基双酮5a的方法,其特征在于:将权利要求1中得到化合物3a:R1=H,R2=t-Bu,R3=t-Bu经过LAH还原后得到4a;经过O3氧化后得到5a;反应方程式如下:
Figure FDA0002596084050000021
CN201711270101.0A 2017-12-05 2017-12-05 一种含桥环结构的恶唑烷类化合物的制备方法 Expired - Fee Related CN107746392B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711270101.0A CN107746392B (zh) 2017-12-05 2017-12-05 一种含桥环结构的恶唑烷类化合物的制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711270101.0A CN107746392B (zh) 2017-12-05 2017-12-05 一种含桥环结构的恶唑烷类化合物的制备方法

Publications (2)

Publication Number Publication Date
CN107746392A CN107746392A (zh) 2018-03-02
CN107746392B true CN107746392B (zh) 2020-10-09

Family

ID=61250165

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711270101.0A Expired - Fee Related CN107746392B (zh) 2017-12-05 2017-12-05 一种含桥环结构的恶唑烷类化合物的制备方法

Country Status (1)

Country Link
CN (1) CN107746392B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112851514A (zh) * 2019-11-12 2021-05-28 中国科学院大连化学物理研究所 多取代环丙烷衍生物及其合成方法
CN112851597B (zh) * 2021-01-13 2022-08-05 南京工业大学 一种使用咪唑鎓盐催化合成恶唑烷酮的方法
CN115215814A (zh) * 2022-09-06 2022-10-21 河南师范大学 异恶唑烷类化合物的合成方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011010332A1 (en) * 2009-07-23 2011-01-27 Abiogen Pharma S.P.A. Process for preparing rel-(3r*,3as*,7as*)-3-benzyl-2-methyl-2,3, 3a,4,5,6,7,7a- octahydrobenzo[d]isoxazoi-4-one or a salt thereof
CN102690241A (zh) * 2011-03-24 2012-09-26 南开大学 含异噁唑啉和异噁唑结构的苯甲酰脲类化合物及制备和应用
WO2015112014A1 (en) * 2014-01-24 2015-07-30 Stichting Katholieke Universiteit Process for the cycloaddition of a hetero(aryl) 1,3-dipole compound with a (hetero)cycloalkyne
CN105218426A (zh) * 2014-06-17 2016-01-06 中国科学院兰州化学物理研究所 一种高效合成吲哚和异喹啉衍生物的方法
CN107365278A (zh) * 2017-06-09 2017-11-21 衢州英特高分子材料有限公司 一种多取代异恶唑烷衍生物及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011010332A1 (en) * 2009-07-23 2011-01-27 Abiogen Pharma S.P.A. Process for preparing rel-(3r*,3as*,7as*)-3-benzyl-2-methyl-2,3, 3a,4,5,6,7,7a- octahydrobenzo[d]isoxazoi-4-one or a salt thereof
CN102690241A (zh) * 2011-03-24 2012-09-26 南开大学 含异噁唑啉和异噁唑结构的苯甲酰脲类化合物及制备和应用
WO2015112014A1 (en) * 2014-01-24 2015-07-30 Stichting Katholieke Universiteit Process for the cycloaddition of a hetero(aryl) 1,3-dipole compound with a (hetero)cycloalkyne
CN105218426A (zh) * 2014-06-17 2016-01-06 中国科学院兰州化学物理研究所 一种高效合成吲哚和异喹啉衍生物的方法
CN107365278A (zh) * 2017-06-09 2017-11-21 衢州英特高分子材料有限公司 一种多取代异恶唑烷衍生物及其制备方法

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Ni-DBFOX/Ph 催化N-α,β-不饱和酰基吡唑与C,N-二芳基硝酮的不对称1,3-偶极环加成反应;刘迅绅 等;《有机化学》;20160919;第37卷;第86-91页 *
Nitrone Directing Groups in Rhodium(III)-Catalyzed C-H Activationof Arenes: 1, 3-dipoles versus Traceless Directing Groups;Fang Xie 等;《Angew.Chem.Int.Ed》;20161110;第55卷;第15351-15355页 *
Regioselective Cycloaddition of C-Carbamoylnitrones to Methyl (E)-2-(2-Phenylcyclopropylidene)acetate and Methyl (E)-2-Methylidene-3-phenylcyclopropane-1-carboxylate;A. P. Molchanov等;《Russian Journal of Organic Chemistry》;20141231;第50卷(第1期);第78-82页 *
Rh(III)-Catalyzed Mild Coupling of Nitrones and Azomethine Imines with Alkylidenecyclopropanes via C-H Activation: Facile Access to Bridged Cycles;Dachang Bai等;《ACS Catalysis》;20180403;第8卷;第4194-4200页 *
Rhodium(III)-Catalyzed C-H Activation of Nitrones and Annulative Coupling with Nitroalkenes;Dachang Bai 等;《The Journal of Organic Chemistry》;20170817;第82卷;第9877-9884页 *

Also Published As

Publication number Publication date
CN107746392A (zh) 2018-03-02

Similar Documents

Publication Publication Date Title
CN107746392B (zh) 一种含桥环结构的恶唑烷类化合物的制备方法
CN106749020B (zh) 一种3-酰基喹啉类化合物的合成方法
CN109422680B (zh) 一种n-乙酰基喹啉-2-酰胺及其衍生物的合成方法
CN104788331B (zh) 基于非贵金属催化的C—H/C—H氧化偶联反应高效制备β-(杂)芳基丙氨酸衍生物的方法
CN108912076B (zh) 一种苯并氧杂环化合物的合成方法
CN107892674B (zh) 一种四氢-1,4-亚甲基苯并[d][1,2]氧氮杂卓的制备方法
CN101863954A (zh) 一种N-叔丁基-4-氮杂-5α-雄甾-3-酮-17β-甲酰胺的制备方法
CN107892694B (zh) 一种含桥环结构的吡唑烷酮类化合物的制备方法
CN107915649B (zh) 1-(z-4-叔丁苄叉)-4-叔丁基胺-1,2,3,4-四氢萘-2-醇的制备方法
CN114436846A (zh) 一种硝酸酯基转移试剂及其制备方法和应用
CN111018779B (zh) 一种2-(3-异喹啉基)-丙酸乙酯衍生物及合成方法
CN108440438B (zh) 一种由苯乙酮类化合物与过硫酸铵及二甲基亚砜共同构建2,4二芳基噁唑的方法
CN113461629A (zh) 一种5-羟甲基-噁唑烷-2-酮类化合物的制备方法
CN104945376A (zh) 一种3-芳酰基吲哚化合物的合成方法
CN113735770B (zh) 一种铑催化的4-苯基噁二唑酮与碳酸亚乙烯酯合成1-氨基异喹啉骨架的方法
CN111499513B (zh) 一种2,3,4,5-四溴苯甲酸酯的合成方法
JP5659191B2 (ja) 複素環化合物、酸化触媒及びその使用
CN116478052B (zh) 一种铜催化合成1-萘胺衍生物的方法
CN117430542B (zh) 一种三氟甲基吲哚衍生物的合成方法
CN111285846B (zh) 一种2-(2-吲哚基)-乙酸酯衍生物及其合成方法
CN115504946B (zh) 一种合成α-酮酰胺化合物的方法
RU2522460C1 (ru) Способ получения алкенилантрахинонов
CN110294686B (zh) α-酮酰胺的绿色制备方法
CN112441921B (zh) 一种铱光催化合成9-乙酰氧基-9,10-二氢菲类化合物的方法
CN114031497A (zh) 一种环丙烯酮与氧杂环化合物的开环双氯化反应方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Bai Dachang

Inventor after: Peng Zhuojin

Inventor after: Li Na

Inventor after: Li Xingwei

Inventor before: Bai Dachang

Inventor before: Peng Zhuojin

Inventor before: Li Xingwei

GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201009

Termination date: 20211205