苯并咪唑氮烯基类化合物的合成方法_2

文档序号:9880806阅读:来源:国知局
酯,并加适量硫代硫酸钠 搅拌10分钟。全部转移至25mL的分液漏斗中,再用蒸馏水和乙酸乙酯(3X2mL)萃取,合并有 机相用饱和食盐水洗一次。有机相用无水硫酸钠干燥〇.5h。在旋转蒸发仪上旋去溶剂,然后 用中性氧化铝过柱子,展开剂为石油醚:乙酸乙酯= 15:1~5:1,即得化合物III-3-1和化合 物III-3-2总共52mg,比例为1:1,总产率为81% ;白色固体;1!1匪1?(6001抱,00(:13)68.17-8.11(m,3H),8.11(s,lH),7.70(d,J = 8.2Hz,lH),7.62(s,lH),7.52(d,J = 8.3Hz,lH),7.43 (s,lH),7.24(d ,J = 8.3Hz,lH),7.20(d ,J = 8.2Hz,lH) ,6.30(d ,J = 3.1Hz , 1H) ,6.28(d ,J = 3.ΙΗζ,ΙΗ),4.25(dd,J=l1.3,6.6Hz,4H),2.53(s,3H),2.50(s,3H),1.75-1.68(m,4H), 1.46(dqd,J=14.5,7.3,3.2Hz,4H),0.98(td,J = 7.4,2.4Hz,6H);13C NMR(151MHz,CDC13)S 166.53(d, J = 2.6Hz) ,144.95(s) ,142.65( s),141.81( s),141 · 10(s),135.58((1, J = 16.0Hz),135.28(s),134.35(s),132.43(s),130.19(s),126.32(s),125.83(s),121.04 (s),120.62(s),111.19(s),110.79(s),105.56(d ,J=15.7Hz),64.82(d ,J = 3.1Hz),30.81 (s),21.91(s),21.46(s),19.21(s),13.73(s)ppm;HRMS:[M+Na]"calculated for Ci5Hi8N2〇2+Na+ :281.126568,found 281.12561;IR(KBr)u3105,2963,2870,1708,1647, 1504,1354,1267,1183,812cm- 1.
[0059]实施例4、(E)3-(5_硝基苯并咪唑-1-基)丙烯酸正丁酯(化合物III-4-1)的制备
[0061] 在lOmLSchlenk反应管中加入Cu(0Ac)2 · H2O 5mg(0 · 025mmol)、2,2_联P比啶4mg (0 · 025mmol)、5_硝基苯并味唑41mg (0 · 25mmol)、Li I 333mg( 2 · 5mmol)、DABC0 28mg (0.25mmol)、DMF(0.9mL)、异丙苯(0. lmL)和丙稀酸丁酯72yL(0.5mmol),插上氧气球控温在 100 °C搅拌反应48h,冷却至室温,加入2mL蒸馏水和2mL乙酸乙酯,并加适量硫代硫酸钠搅拌 lOmin。全部转移至25mL的分液漏斗中,再用蒸馏水和乙酸乙酯(3 X 2mL)萃取,合并有机相 用饱和食盐水洗一次。有机相用无水硫酸钠干燥0.5h。在旋转蒸发仪上旋去溶剂,然后用中 性氧化铝过柱子,所用展开剂为石油醚:乙酸乙酯=15:1~5:1,即得化合物III-4-1 42mg, 产率58% ;白色固体;白色固体测得熔点为137-139°C JH NMR(600MHz,CDCl3)S = 8.74(d,J = 1.4Hz,lH),8.42(s,lH),8.36(dd ,J = 8.9,1.7Hz,lH),8.16(d ,J = 14.4Hz,lH),7.75(d ,J = 9.0Hz,lH),6.43(d ,J= 14.4Hz, 1H), 4.28(t,J = 6.7Hz,2H), 1.76-1.69(m,2H),1.47(dt, J = 14.9,7.4Hz,2H),0.99ppm(t,J = 7.4Hz,3H) ;13C 匪R( 151MHz,CDC13)S165.57(s), 145.01(s),144.07(s),136.14(s),134.16(s),120.42(s),117.57(s),110.96(s),108.77 (s) ,65.21(s),30.69(s) ,19.13(s) ,13.64(s);HRMS: [M+Na]+calculated for C14H15N3O4+ Na+:312.096068,found 312.09471;IR(KBr)u3103,3041,2962,2872,1708,1652,1524, 1347,1262,1204,1166,952,736cm _1.
[0062] 实施例5、(E)3-(6-硝基苯并咪唑-1-基)丙烯酸正丁酯(化合物III-4-2)的制备
[0064] 在lOmLSchlenk反应管中加入Cu(0Ac)2 · H2O 5mg(0 · 025mmol)、2,2_联P比啶4mg (0 · 025mmol)、5_硝基苯并味唑41mg (0 · 25mmol)、Li I 333mg( 2 · 5mmol)、DABCO 28mg (0.25mmol)、DMF(0.9mL)、异丙苯(O.lmL)和丙烯酸正丁酯72yL(0.5mmol),插上气球控温在 100 °C搅拌反应48h,冷却至室温,加入2mL蒸馏水和2mL乙酸乙酯,并加适量硫代硫酸钠搅拌 lOmin。全部转移至25mL的分液漏斗中,再用蒸馏水和乙酸乙酯(3 X 2mL)萃取,合并有机相 用饱和食盐水洗一次。有机相用无水硫酸钠干燥0.5h。在旋转蒸发仪上旋去溶剂,然后用中 性氧化铝过柱子,所用展开剂为石油醚:乙酸乙酯= 15:1~5:1,即得化合物III-4-2 7mg, 产率1 〇 % ;淡黄色固体;淡黄色色固体测得熔点为119-121°C ; 4 NMR(600MHz,⑶Cl3) δ = 8.61(s,lH) ,8.43(s,lH) ,8.32(d,J = 8.2Hz,lH) ,8.17(d,J=14.4Hz,lH) ,7.95(d,J = 8.8Hz,lH) ,7.27(s,lH) ,6.43(d,J= 14.4Hz, 1H) ,4.29(t,J = 6.7Hz,2H) ,2.08-1.30(m, 6H),0.99(t,J = 7.4Hz,3H),0.00(s,lH);13C NMR( 151MHz,CDC13)S165.59(s) ,148.68(s), 145.55(s),145.23(s),134.17(s),131.84(s),121.49(s),119.89(s),108.72(s),107.88 (s),65.30(s),30.74(s),19.19(s),13.71(s),0.00(s).
[0065] 实施例6、(E)3-(5-酯基苯并咪唑-1-基)丙烯酸正丁酯和(E)3-(6-酯基苯并咪唑-1-基)丙烯酸正丁酯(化合物III-5-1和化合物III-5-2)的制备
[0067]在lOmLSchlenk反应管中加入Cu(0Ac)2 · H2O 5mg(0 · 025mmol)、2,2_联P比啶4mg (0 · 025mmol)、5_酯基苯并味唑48mg (0 · 25mmol)、Li I 333mg( 2 · 5mmol)、DABC0 28mg (0.25mmol)、DMF(0.9mL)、异丙苯(0. lmL)和丙稀酸丁酯72yL(0.5mmol),插上氧气球控温在 100 °C搅拌反应48h,冷却至室温,加入2mL蒸馏水和2mL乙酸乙酯,并加适量硫代硫酸钠搅拌 lOmin。全部转移至25mL的分液漏斗中,再用蒸馏水和乙酸乙酯(3 X 2mL)萃取,合并有机相 用饱和食盐水洗一次。有机相用无水硫酸钠干燥0.5h。在旋转蒸发仪上旋去溶剂,然后用中 性氧化铝过柱子,所用展开剂为石油醚:乙酸乙酯=15:1~5:1,即得化合物III-5-1和化合 物111-5-2共4011^,产率51%,其比例为39 :61;白色固体;1!1匪1?(6001抱,〇0(:13% = 8.54(8, 1H) ,8.37(d, J=10.3Hz, 1H) ,8.31(s,lH) ,8.15(td,J = 23.6,9.9Hz,4H) ,7.86(d,J = 5.9Hz,lH),7.67(dd ,J = 5.4,2.8Hz,lH),6.40(d,J = 14.4Hz, 1H), 6.36(d,J= 14.4Hz, 1H), 4.49-4.38(m,4H),4.27(d,J = 4.0Hz,4H) ,1.72(d,J = 6.1Hz,4H) ,1.52-1.40(m,10H), 0.99ppm(d,J=1.4Hz,6H);13C 匪R( 151MHz,CDC13)S166.33((1, J = 4.3Hz) ,166.07((1, J = 7.1Hz),147.63(s),144.23(s),143.69(s),142.67(s),135.21(s),134.83(d,J=10.0Hz), 132.06(s),127.38(s),127.03(s),126.38(s),125.64(s),123.20(s),120.78(s),113.03 (s) ,110.66(s),107.28(s),77.30(s),77.09(s),76.88(s),65.04(s),61.42(s),61.22 (s) ,30.78(s) ,19.20(s) ,14.39((1, J = 5.6Hz) ,13.71 (s)ppm;HRMS: [M+Na]+calculated for Ci7H2〇N2〇4+Na+:339.132068,found 339.13051;IR(KBr)υ3082,2961,2873,1715,1652, 1502,1284,1191,1025,769cm-1·
[0068] 实施例7、(E)3-(5-氟苯并咪唑-1-基)丙烯酸正丁酯(化合物III-6-1)的制备
[0070] 在lOmLSchlenk反应管中加入Cu(0Ac)2 · H2O 5mg(0 · 025mmol)、2,2_联P比啶4mg (0 · 025mmol)、5_氟苯并咪唑34mg(0 · 25mmol)、LiI 333 · 3mg(2 · 5mmol)、DABC0 28mg (0.25mmol)、DMF(0.9mL)、异丙苯(0. lmL)和丙稀酸丁酯72mL(0.5mmol),插上氧气球控温在 100 °C搅拌反应48h,冷却至室温,加入2mL蒸馏水和2mL乙酸乙酯,并加适量硫代硫酸钠搅拌 lOmin。全部转移至25mL的分液漏斗中,再用蒸馏水和乙酸乙酯(3 X 2mL)萃取,合并有机相 用饱和食盐水洗一次。有机相用无水硫酸钠干燥0.5h。在旋转蒸发仪上旋去溶剂,然后用中 性氧化铝过柱子,所用展开剂为石油醚:乙酸乙酯= 15:1~5:1,即得化合物III-6-1 27mg, 产率42%;白色固体;测得熔点为87-89°(:;1!1匪1?(6001抱,0)(:13)3 = 8.25(8,1!〇,8.11((1,了 = 14.4Hz,lH),7.59(dd,J = 8.9,4.3Hz,lH),7.54(dd,J = 8.7,2.2Hz,lH),7· 18(td,J = 9.0,2.3Hz,lH) ,6.32(d,J= 14.4Hz, 1H),4.26(t,J = 6.7Hz,2H) ,1.75-1.67(m,2H) ,1.50-1 ·41 (m, 2H),0.98ppm(t,J = 7.4Hz,3H) ;13C NMR( 151MHz,CDC13)S166.16(s) ,161.07(s), 159.46(s),145.00(s),143.09(s),135.09(s),128.68(s),113.41(s),113.24(s),111.72 (d,J=10.0Hz),107.38(s),107.22(s),106.74(s),65.00(s),30.78(s),19.20(s),13.71 (s)ppm;HRMS: [M+Na]+calculated for Ci4Hi5FN2〇2+Na+:285.101568,found 285.10287;IR (KBr)u3125,2961,2873,1708,1650,1486,1251,1213,1174,956,835cm _1.
[0071] 实施例8、(E)3-(6-氟苯并咪唑-1-基)丙烯酸正丁酯(化合物III-6-2)的制备
[0073]在lOmLSchlenk反应管中加入Cu(0Ac)2 · H2O 5mg(0 · 025mmol)、2,2_联P比啶4mg (0 · 025mmo 1)、5_氣苯并味唑34mg (0 · 25mmo l)、LiI 333mg(2.5mmo 1)、DABC0 28mg (0.25mmol)、DMF(0.9mL)、异丙苯(0. lmL)和丙稀酸丁酯72yL(0.5mmol),插上氧气球控温在 100 °C搅拌反应48h,冷却至室温,加入2mL蒸馏水和2mL乙酸乙酯,并加适量硫代硫酸钠搅拌 10min。全部转移至25mL的分液漏斗中,再用蒸馏水和乙酸乙酯(3 X 2mL)萃取,合并有机相 用饱和食盐水洗一次。有机相用无水硫酸钠干燥0.5h。在旋转蒸发仪上旋去溶剂,然后用中 性氧化铝过柱子,所用展开剂为石油醚:乙酸乙酯= 15:1~5:1,即得化合物III-6-2 27mg, 产率42%;白色固体;测得熔点为86-881^? NMR(600MHz,CDC13)S8.22(s,1H),8.07((1, J = 14.4Hz,lH),7.80(dd,J = 8.6,4.7Hz,lH) ,7.35(dd,J = 8.3,1.7Hz,lH),7.14(td,J = 9.1, 2.1Hz,lH) ,6.29(d,J= 14.4Hz ,1H) ,4.26(t,J = 6.7Hz ,2H) ,1.75-1.68(m,2H) ,1.49-1.42 (m,2H),0.98(t,J = 7.4Hz,3H) ;13C 匪R( 151MHz,CDC13)S166.07(s) ,161.65(s) ,160.03 (s),142.06(s),140.55(s),134.92(s),121.97(d,J=10.1Hz),112.85(s),112.69(s), 106.94(s),98.56(s),98.37(s),65.03(s),30.77(s),19.20(s),13.71(s)ppm.
[0074]实施例9、(E)3-(5_氯苯并咪唑-1-基)丙烯酸正丁酯(化合物III-7-1)的制备
[0076] 方法一:在lOmLSchlenk反应管中加入Cu(0Ac)2 · Η2Ο 5mg(0.025mmol)、2,2_联Ρ比 啶4mg(0 · 025mmol)、5_氣苯并味挫38mg(0 · 25mmol)、Li I 333mg(2 · 5mmol)、DABC0 28mg (0.25mmol)、DMF(0.9mL)、异丙苯(0. lmL)和丙稀酸丁酯72y
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