该专利涉及有机合成、药物合成、有机化工的研究领域,具体的方法就是亚磺酸钠、芳基/烷基醛和硫属杂环化合物进行三组分反应一步合成芳基(硫属杂芳基)甲基砜类化合物。
背景技术:
砜被广泛用作药物,例如用于预防阿尔茨海默氏病的药物γ-分泌酶抑制剂(i.churcher,d.beher,j.d.best,j.l.castro,e.e.clarke,a.gentry,t.harrison,l.hitzel,e.kay,s.kerrad,h.d.lewis,p.m.gutierrez,r.m.smith,p.j.oakley,m.reilly,d.e.shaw,m.s.shearman,m.r.teall,s.williamsandj.d.j.wrigley,bioorg.med.chem.lett.,2006,16,280.),也应用于生物活性化合物((a)g.andrei,l.naesens,r.snoeckandc.e.stephens,patent:wo2012/113920;(b)j.m.caron,patent:wo2010/141956;(c)p.k.chakravarty,p.p.shao,patent:wo2010/036596;(d)y.harrak,g.casula,j.basset,g.rosell,s.plescia,d.raffa,m.g.cusimano,r.pouplanaandm.d.pujol,j.med.chem.,2010,53,6560;(e)t.k.sasikumar,l.qiang,d.a.burnett,d.cole,r.xu,h.li,w.j.greenlee,j.clader,l.zhangandl.hyde,bioorg.med.chem.lett.,2010,20,3632;(f)l.legros,j.r.dehliandc.bolm,adv.synth.catal.,2005,347,19.),天然产物((a)m.r.prinsep,j.w.blunt,m.h.g.munro,j.nat.prod.,1991,54,1068.(b)s.s.p.chouandc.j.j.wu,tetrahedron,2012,68,5025.(c)l.chen,z.hua,g.li,andz.jin,org.lett.,2011,13,3580.),和农业化学品,例如现在流行的除草剂甲基磺草酮((a)d.cornes,patent:wo2002/100173.(b)r.a.wichertandt.h.beckett,wo2002/019823.)。砜也最常被用作有机合成的中间体。它们也被广泛用作有机合成中的重要中间体(n.s.simpkins,sulfonesinorganicsynthesis;pergamonpress:oxford,1993.)。
另一方面,硫属杂环支架具有生物活性,例如抗肿瘤药(v.alcolea,d.plano,i.encío,j.a.palop,a.k.sharma,c.sanmartín.,eur.j.med.chem.2016,123,407)和抗增殖药(p.begines,a.oliete,o.lopez,i.maya,g.b.plata,j.m.padronandj.g.f.bolanosfuturemed.chem.2018,10,319.)。众所周知,噻吩,呋喃和硒化合物具有多种生物活性,例如抗炎药(p.r.kumar,s.raju,p.s.goud,m.sailaja,m.r.sarma,g.o.reddy,m.p.kumar,v.v.r.m.k.reddy,t.suresha,p.hegdeb,bioorg.med.chem.2004,12,1221.),抗hivpr抑制剂(bonini,c.;chiummiento,l.;bonis,m.d.;funicello,m.;lupattelli,p.;suanno,g.;berti,f.;campaner,p.tetrahedron2005,61,6580.),nqo2(sorayaalnabulsi,buthainahussein,elhamsantina,izzeddinalsalahat,manikandankadirvel,rachaeln.magwaza,richarda.bryce,carlh.schwalbe,alexg.baldwin,ilariarusso,ianj.stratford,sallyfreeman,bioorg.med.chem.lett.2018,28,1292.)抑制剂和抗癌剂((a)a.p.fernandes,v.gandin,biochim.biophys.acta2015,1850,1642.(b)m.wallenberg,s.misra,m.bjornstedt,basicclin.pharmacol.toxicol.2014,114,377.)。最近,在药物化学项目中着手研究α-支化杂环苄基砜的结构-活性关系(sar)(t.knauberandj.tucker,j.org.chem.2016,81,5636.)。基于此重要性,我们拟开发芳基(硫属杂芳基)甲基砜的新合成方法。
我们在此提供一种在水中进行布朗斯特酸催化的无金属三组分反应,得到具有广泛底物范围的芳基(硫属杂芳基)甲基砜,并通过新的合成方法将产物转化为其他有价值的分子。
尽我们所知,未见与本申请相同的文献报道。
技术实现要素:
本发明提供一种芳基(硫属杂芳基)甲基砜的合成方法。
本发明公开的芳基(硫属杂芳基)甲基砜的合成方法均一步完成,即在水中,布朗斯特酸(优选的布朗斯特酸催化剂是硫酸)催化芳基/烷基醛,烃基亚磺酸钠和硫属杂环化合物发生三组分反应,一步合成芳基(硫属杂芳基)甲基砜,反应通式如下。其中,芳基/烷基醛为烷基醛、芳基醛和杂芳基醛。硫属杂环化合物为噻吩、呋喃和硒吩。烃基亚磺酸钠为芳基亚磺酸钠和烷基亚磺酸钠。
结合下面的实施例,更详细地阐述本发明,但并不认为它们是对本发明范围的限制。
具体实施方式
实施例一
向装有搅拌子的25ml玻璃试管中加入苯甲醛(1.5mmol),2-甲基噻吩(1mmol),硫酸(0.5当量)和2ml水。在60℃下预热的油浴中将试管搅拌15分钟,然后缓慢加入苯亚磺酸钠(1mmol)。将反应混合物在60℃下搅拌。7小时后,通过tlc检查反应进程并确认反应完成。将反应混合物冷却至室温。然后将水(10ml)加入到反应混合物中,将其用乙酸乙酯(10ml)萃取三次。合并的有机层经无水mgso4干燥,过滤,并在减压下浓缩。残余物通过硅胶快速柱色谱纯化(石油醚:乙酸乙酯=10∶1用作洗脱剂),纯化后,得到白色固体2-甲基-5-(苯基(苯磺酰基)甲基)噻吩产率为82%。反应方程式如下所示。
产物2-甲基-5-(苯基(苯磺酰基)甲基)噻吩的结构表征数据如下:
1hnmr(400mhz,chloroform-d)δ7.68–7.59(m,2h),7.58–7.45(m,3h),7.41–7.28(m,5h),6.96(d,j=3.5hz,1h),6.62(dq,j=3.4,1.1hz,1h),5.45(s,1h),2.44(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ142.08,137.54,133.79,133.56,132.68,130.95,130.21,129.98,129.85,129.31,129.18,128.98,128.65,128.61,128.50,125.12,72.63,15.31.
hrms(esi):calculatedforc18h16o2s2na[m na] =351.0489,foundc18h16o2s2na[m na] =351.0489.
meltingpoint:144-145℃.
实施例二
4-氟苯甲醛代替实施例一中的苯甲醛,得到白色固体2-((4-氟苯基)(苯磺酰基)甲基)-5-甲基噻吩的产率为89%。
1hnmr(400mhz,chloroform-d)δ7.76–7.33(m,7h),7.12–6.87(m,3h),6.63(dq,j=3.5,1.1hz,1h),5.44(s,1h),2.45(s,3h).
13cnmr(101mhz,cdcl3)δ164.23,161.75,142.17,137.30,133.68,131.82,131.74,130.71,129.78,129.09,128.69,128.49,125.15,115.76,115.55,71.64,15.29.
hrms(esi):calculatedforc18h15fo2s2na[m na] =369.0395,foundc18h15fo2s2na[m na] =369.0373.
meltingpoint:129-130℃.
实施例三
2-氯苯甲醛代替实施例一中的苯甲醛,得到白色固体2-((2-氯苯基)(苯磺酰基)甲基)-5-甲基噻吩的产率为88%。
1hnmr(400mhz,chloroform-d)δ8.23–8.16(m,1h),7.74–7.65(m,2h),7.63–7.55(m,1h),7.47–7.35(m,3h),7.26–7.23(m,2h),7.00(d,j=3.5hz,1h),6.66(dd,j=3.6,1.2hz,1h),6.29(s,1h),2.47(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ142.43,137.63,134.73,133.77,130.99,130.70,130.26,130.13,130.10,129.55,129.08,128.70,127.23,125.15,66.83,15.36.
hrms(esi):calculatedforc18h15clo2s2na[m na] =385.0100,foundc18h15clo2s2na[m na] =385.0089.
meltingpoint:100-101℃.
实施例四
4-氯苯甲醛代替实施例一中的苯甲醛,得到白色固体2-((4-氯苯基)(苯磺酰基)甲基)-5-甲基噻吩的产率为88%。
1hnmr(400mhz,chloroform-d)δ8.09–7.99(m,1h),7.68–7.61(m,2h),7.60–7.53(m,1h),7.49–7.37(m,4h),7.31–7.28(m,1h),6.93(d,j=3.5hz,1h),6.62(dq,j=3.4,1.1hz,1h),5.42(s,1h),2.44(d,j=1.0hz,3h).
13cnmr(101mhz,cdcl3)δ142.27,137.32,135.19,133.77,131.56,131.27,131.18,130.52,129.87,129.16,128.89,128.87,128.76,125.20,71.80,15.31.
hrms(esi):calculatedforc18h15clo2s2na[m na] =385.0100,foundc18h15clo2s2na[m na] =385.0089.
meltingpoint:125-126℃.
实施例五
2-溴苯甲醛代替实施例一中的苯甲醛,得到白色固体2-((2-溴苯基)(苯磺酰基)甲基)-5-甲基噻吩的产率为86%。
1hnmr(400mhz,chloroform-d)δ8.22(dd,j=7.9,1.6hz,1h),7.77–7.64(m,2h),7.66–7.53(m,1h),7.43(dddd,j=10.8,8.3,5.0,2.2hz,4h),7.18(td,j=7.7,1.7hz,1h),7.00(d,j=3.5hz,1h),6.66(dq,j=3.4,1.1hz,1h),6.31(s,1h),2.47(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ142.46,137.64,133.81,132.95,132.73,130.75,130.36,130.21,130.13,129.11,128.74,127.88,125.79,125.16,69.76,15.37.
hrms(esi):calculatedforc18h15bro2s2na[m na] =428.9595,foundc18h15bro2s2na[m na] =428.9594.
meltingpoint:103-104℃.
实施例六
2-羟基苯甲醛代替实施例一中的苯甲醛,得到白色固体2-((5-甲基噻吩-2-基)(苯磺酰基)甲基)苯酚的产率为77%。
1hnmr(400mhz,chloroform-d)δ7.77–7.68(m,2h),7.67–7.53(m,3h),7.42(t,j=7.8hz,2h),7.21(td,j=7.8,1.7hz,1h),7.02(d,j=3.5hz,1h),6.95(td,j=7.6,1.2hz,1h),6.82(dd,j=8.1,1.2hz,1h),6.64(dd,j=3.6,1.2hz,1h),6.10(s,1h),2.45(d,j=1.0hz,3h).
13cnmr(101mhz,cdcl3)δ154.15,142.06,137.15,133.74,130.58,130.37,130.35,130.27,129.11,129.05,128.66,128.60,125.03,120.94,119.21,116.82,65.08,15.32.
hrms(esi):calculatedforc18h16o3s2na[m na] =367.0439,foundc18h16o3s2na[m na] =367.0426.
meltingpoint:124-125℃.
实施例七
4-甲基苯甲醛代替实施例一中的苯甲醛,得到白色固体2-甲基-5-((苯磺酰基)(对甲苯基)甲基)噻吩的产率为77%。
1hnmr(400mhz,chloroform-d)δ7.69–7.58(m,2h),7.58–7.51(m,1h),7.38(dd,j=8.1,6.8hz,4h),7.11(d,j=7.9hz,2h),6.93(d,j=3.5hz,1h),6.61(dt,j=3.6,1.1hz,1h),5.42(s,1h),2.43(d,j=1.0hz,3h),2.32(s,3h).
13cnmr(101mhz,cdcl3)δ144.64,141.95,138.96,137.50,133.51,131.20,130.23,129.79,129.71,129.49,129.34,129.20,129.15,128.57,126.49,125.04,72.27,21.20,15.32.
hrms(esi):calculatedforc19h18o2s2na[m na] =365.0646,foundc19h18o2s2na[m na] =365.0635.
meltingpoint:151-152℃.
实施例八
甲醛代替实施例一中的苯甲醛,得到白色固体2-甲基-5-((苯磺酰基)甲基)噻吩的产率为72%。
1hnmr(400mhz,chloroform-d)δ7.83–7.69(m,2h),7.68–7.58(m,1h),7.49(t,j=7.8hz,2h),6.65–6.51(m,2h),4.43(s,2h),2.43(d,j=1.1hz,3h).
实施例九
乙醛代替实施例一中的苯甲醛,得到白色固体2-甲基-5-(1-(苯磺酰基)乙基)噻吩的产率为74%。
1hnmr(400mhz,chloroform-d)δ7.70–7.53(m,3h),7.50–7.37(m,2h),6.62–6.51(m,2h),4.42(q,j=7.1hz,1h),2.43(d,j=1.0hz,3h),1.74(d,j=7.2hz,3h).
13cnmr(101mhz,cdcl3)δ141.51,136.41,133.66,133.00,129.29,129.00,128.69,128.58,124.93,61.97,15.43,15.37.
hrms(esi):calculatedforc13h14o2s2na[m na] =289.0333,foundc13h14o2s2na[m na] =289.0325.
meltingpoint:89-90℃.
实施例十
2-呋喃甲醛代替实施例一中的苯甲醛,得到白色固体2-((5-甲基噻吩-2-基)(苯磺酰基)甲基)呋喃的产率为69%。
1hnmr(400mhz,chloroform-d)δ7.66–7.54(m,3h),7.48–7.35(m,3h),6.96(d,j=3.5hz,1h),6.65(dt,j=3.6,1.2hz,1h),6.52(d,j=3.4hz,1h),6.37(dd,j=3.4,1.9hz,1h),5.62(s,1h),2.46(d,j=1.0hz,3h).
13cnmr(101mhz,cdcl3)δ145.45,143.45,142.61,136.98,133.81,130.52,129.31,128.66,128.13,125.23,112.10,111.11,66.68,15.34.
hrms(esi):calculatedforc16h14o3s2na[m na] =341.0282,foundc16h14o3s2na[m na] =341.0277.
meltpoint:132-133℃;
实施例十一
3-噻吩甲醛代替实施例一中的苯甲醛,得到白色固体2-甲基-5-((苯磺酰基)(噻吩-3-基)甲基)噻吩的产率为71%。
1hnmr(400mhz,chloroform-d)δ7.65–7.58(m,2h),7.58–7.51(m,1h),7.43–7.36(m,2h),7.34(dd,j=3.0,1.4hz,1h),7.31–7.27(m,1h),6.90(d,j=3.5hz,1h),6.62(dq,j=3.5,1.2hz,1h),5.62(s,1h),2.45(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ142.25,137.25,133.64,132.45,130.66,129.94,129.13,128.65,128.43,126.58,126.09,125.17,68.13,15.38.
hrms(esi):calculatedforc16h14o2s3na[m na] =357.0054,foundhrms(esi):calculatedforhrms(esi):calculatedforc16h14o2s3na[m na] =357.0036.
meltpoint:138-139℃;
实施例十二
2-氟苯亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-((((2-氟苯基)磺酰基)(苯基)甲基)-5-甲基噻吩的产率为84%。
1hnmr(400mhz,chloroform-d)δ7.68–7.56(m,3h),7.53–7.46(m,1h),7.34–7.28(m,3h),7.19–7.07(m,2h),7.03(d,j=3.5hz,1h),6.60(dq,j=3.4,1.1hz,1h),5.86(s,1h),2.42(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ142.33,135.97,135.88,133.75,131.93,131.57,130.16,129.94,129.85,129.13,128.69,128.48,125.16,124.40(d,j=3.6hz),116.58(d,j=21.7hz),71.53,15.30.
hrms(esi):calculatedforc18h15fo2s2na[m na] =369.0395,foundc18h15fo2s2na[m na] =369.0371.
meltingpoint:127-128℃.
实施例十三
4-三氟甲基苯亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-甲基-5-(苯基(((4-(三氟甲基)苯基)磺酰基)甲基)噻吩的产率为87%。
1hnmr(400mhz,chloroform-d)δ7.75(d,j=8.2hz,2h),7.64(d,j=8.2hz,2h),7.56–7.44(m,2h),7.40–7.28(m,3h),6.98(d,j=3.6hz,1h),6.64(dd,j=3.5,1.2hz,1h),5.47(s,1h),2.45(d,j=1.0hz,3h).
13cnmr(101mhz,cdcl3)δ142.55,141.16,135.28,131.92,130.14,130.08,129.96,129.74,129.30,128.80,125.71,125.67,125.63,125.60,125.23,121.69,109.98,72.68,15.31.
hrms(esi):calculatedforc19h15f3o2s2na[m na] =419.0363,foundc19h15f3o2s2na[m na] =419.0360.
meltingpoint:121-122℃.
实施例十四
4-氯苯亚磺酸钠代替实施例一中的苯亚磺酸钠,得到2-(((4-氯苯基)磺酰基)(苯基)甲基)-5-甲基噻吩的产率为86%。
1hnmr(400mhz,chloroform-d)δ7.64–7.45(m,5h),7.42–7.30(m,4h),6.98(d,j=3.5hz,1h),6.64(dq,j=3.4,1.1hz,1h),5.43(s,1h),2.45(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ171.51,142.32,140.34,135.95,133.78,132.26,130.58,130.48,130.18,129.98,129.94,129.16,128.93,128.75,128.48,125.18,109.98,72.69,15.34.
hrms(esi):calculatedforc18h15clo2s2na[m na] =385.0100,foundhrms(esi):calculatedforhrms(esi):calculatedforc18h15clo2s2na[m na] =385.0076.
meltingpoint:154-155℃.
实施例十五
3-氟苯亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-(((3-氟苯基)磺酰基)(苯基)甲基)-5-甲基噻吩的产率为80%。
1hnmr(400mhz,chloroform-d)δ7.68-7.46(m,3h),7.45–7.29(m,5h),7.26–7.20(m,1h),6.99(d,j=3.5hz,1h),6.64(dq,j=3.4,1.1hz,1h),5.46(s,1h),2.45(d,j=1.1hz,3h).
13cnmr(101mhz,chloroform-d)δ162.00(d,j=251.9hz),142.38,133.75,132.16,130.38,130.31,130.17,130.03,129.92,129.20,129.14,128.74,128.48,125.19,124.98,124.94,120.85(d,j=21.1hz),116.46(d,j=24.4hz),72.62,15.32.
hrms(esi):calculatedforc18h15fo2s2na[m na] =369.0395,foundc18h15fo2s2na[m na] =369.0371.
meltingpoint:127-128℃.
实施例十六
4-叔丁基苯亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-((((4-(叔丁基)苯基)磺酰基)(苯基)甲基)-5-甲基噻吩的产率为75%。
1hnmr(400mhz,chloroform-d)δ7.55–7.44(m,4h),7.40–7.34(m,2h),7.33–7.27(m,3h),6.96(d,j=3.5hz,1h),6.62(dq,j=3.5,1.1hz,1h),5.42(s,1h),2.44(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ157.52,141.92,134.37,133.78,132.84,131.14,130.18,129.93,129.71,129.13,128.99,128.85,128.52,128.48,125.71,125.55,125.03,72.61,35.16,31.05,30.99,15.30.
hrms(esi):calculatedforc22h24o2s2na[m na] =407.1115,foundc22h24o2s2na[m na] =407.1110.
meltingpoint:154-155℃.
实施例十七
4-甲基苯亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-甲基-5-(苯基(甲苯磺酰基)甲基)噻吩的产率为76%。
1hnmr(400mhz,chloroform-d):δ7.45–7.37(m,4h),7.24(dt,j=5.4,2.7hz,3h),7.09(d,j=8.0hz,2h),6.89(d,j=3.5hz,1h),6.55(dd,j=3.5,1.3hz,1h),5.35(s,1h)2.37(d,j=1.1hz,3h),2.31(s,3h).
13cnmr(101mhz,cdcl3)δ144.53,141.95,134.46,133.75,132.79,131.12,130.17,129.92,129.73,129.24,129.16,128.88,128.59,128.48,125.05,72.54,21.65,15.33.
hrms(esi):calculatedforc19h18o2s2na[m na] =365.0646,foundhrms(esi):calculatedforhrms(esi):calculatedforc19h18o2s2na[m na] =365.0624.
meltingpoint:153-154℃.
实施例十八
甲基亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-甲基-5-((甲基磺酰基)(苯基)甲基)噻吩的产率为71%。
1hnmr(400mhz,chloroform-d)δ7.72–7.58(m,2h),7.51–7.35(m,3h),7.12(d,j=3.5hz,1h),6.70(dd,j=3.5,1.2hz,1h),5.47(s,1h),2.79(s,3h),2.47(d,j=1.1hz,3h).
13cnmr(101mhz,cdcl3)δ142.30,132.39,130.86,129.69,129.54,129.35,129.09,125.43,70.83,39.15,15.35.
hrms(esi):calculatedforc13h14o2s2na[m na] =289.0333,foundc13h14o2s2na[m na] =289.0316.
meltingpoint:129-130℃.
实施例十九
乙基亚磺酸钠代替实施例一中的苯亚磺酸钠,得到白色固体2-((乙基磺酰基)(苯基)甲基)-5-甲基噻吩的产率为72%。
1hnmr(400mhz,chloroform-d)δ7.69–7.61(m,2h),7.46–7.36(m,3h),7.11(d,j=3.5hz,1h),6.69(dq,j=3.5,1.2hz,1h),5.47(s,1h),2.90(qd,j=7.5,1.7hz,2h),2.46(d,j=1.1hz,3h),1.34(t,j=7.5hz,3h).
13cnmr(101mhz,cdcl3)δ142.19,132.30,130.87,130.18,129.72,129.39,129.24,129.04,128.51,125.39,68.34,45.67,15.34,6.75.
hrms(esi):calculatedforc14h16o2s2na[m na] =303.0489,foundhrms(esi):calculatedforhrms(esi):calculatedforc14h16o2s2na[m na] =303.0477.
实施例二十
2-乙基噻吩代替实施例一中的2-甲基噻吩,得到白色固体2-乙基-5-(苯基(苯磺酰基)甲基)噻吩的产率为74%。
1hnmr(400mhz,chloroform-d)δ8.16–8.08(m,1h),7.68–7.47(m,5h),7.43–7.31(m,4h),7.02(d,j=3.5hz,1h),6.68(dt,j=3.6,1.1hz,1h),5.47(s,1h),2.92–2.75(m,2h),1.29(t,j=7.5hz,3h).
13cnmr(101mhz,cdcl3)δ149.72,137.44,133.73,133.54,132.59,130.41,130.16,129.96,129.64,129.12,128.96,128.62,128.57,128.48,123.25,72.62,23.43,15.76.
hrms(esi):calculatedforc19h18o2s2na[m na] =365.0646,foundc19h18o2s2na[m na] =365.0639.
meltingpoint:136-137℃.
实施例二十一
2-羟乙基噻吩代替实施例一中的2-甲基噻吩,得到白色固体2-(5-(苯基(苯磺酰基)甲基)噻吩-2-基)乙-1-醇的产率为72%。
1hnmr(400mhz,chloroform-d)δ7.61(dd,j=8.3,1.3hz,2h),7.58–7.44(m,3h),7.37(t,j=7.8hz,2h),7.34–7.26(m,3h),7.07(d,j=3.6hz,1h),6.75(d,j=3.6hz,1h),5.46(s,1h),3.81(t,j=6.3hz,2h),3.01(t,j=6.2hz,2h).
13cnmr(101mhz,cdcl3)δ143.18,137.40,133.67,132.49,131.92,129.97,129.91,129.15,129.09,128.71,128.66,125.64,72.54,63.23,33.48.
hrms(esi):calculatedforc19h18o3s2na[m na] =381.0595,foundhrms(esi):calculatedforhrms(esi):calculatedforc19h18o3s2na[m na] =381.0569.
meltingpoint:147-148℃.
实施例二十二
2-硫代甲基噻吩代替实施例一中的2-甲基噻吩,得到白色固体2-(甲硫基)-5-(苯基(苯磺酰基)甲基)噻吩的产率为79%。
1hnmr(400mhz,chloroform-d)δ7.65–7.59(m,2h),7.54(ddt,j=8.8,7.1,1.3hz,1h),7.49–7.44(m,2h),7.42–7.35(m,2h),7.34–7.27(m,3h),7.04(dd,j=3.7,0.7hz,1h),6.92(d,j=3.7hz,1h),5.44(s,1h),2.47(s,3h).
13cnmr(101mhz,cdcl3)δ139.77,137.28,135.36,133.75,132.20,130.25,130.17,129.96,129.19,129.17,128.77,128.72,72.61,21.85.
hrms(esi):calculatedforc18h16o2s3na[m na] =383.0210,found383.0198.
meltingpoint:128-129℃.
实施例二十三
噻吩代替实施例一中的2-甲基噻吩,得到白色固体2-(苯基(苯磺酰基)甲基)噻吩的产率为70%。
1hnmr(400mhz,chloroform-d)δ7.66–7.58(m,2h),7.58–7.45(m,3h),7.42–7.23(m,6h),7.23(dt,j=3.6,1.0hz,1h),6.99(dd,j=5.2,3.6hz,1h),5.54(s,1h).
实施例二十四
2-甲基呋喃代替实施例一中的2-甲基噻吩,得到白色固体2-甲基-5-(苯基(苯磺酰基)甲基)呋喃的产率为69%。
1hnmr(400mhz,chloroform-d)δ7.66–7.28(m,10h),6.43(d,j=3.2hz,1h),5.95(dd,j=3.2,1.1hz,1h),5.36(s,1h),2.22(d,j=1.0hz,3h).
13cnmr(101mhz,cdcl3)δ153.39,143.55,137.71,133.78,133.61,130.75,130.42,130.20,129.87,129.27,129.02,128.69,128.55,128.51,112.97,107.13,71.07,13.62.
hrms(esi):calculatedforc18h16o3sna[m na] =335.0718,found335.0695.
meltingpoint:137-138℃.
实施例二十五
2-乙基呋喃代替实施例一中的2-甲基噻吩,得到白色固体2-乙基-5-(苯基(苯磺酰基)甲基)呋喃的产率为67%。
1hnmr(400mhz,chloroform-d)δ7.64–7.51(m,3h),7.54–7.45(m,2h),7.48–7.30(m,5h),7.26(s,1h),6.45(d,j=3.2hz,1h),5.96(dt,j=3.3,1.1hz,1h),5.37(s,1h),2.56(qd,j=7.6,1.0hz,2h),1.15(t,j=7.5hz,3h).
13cnmr(101mhz,cdcl3)δ207.19,158.96,143.49,137.75,133.59,130.75,130.45,130.15,129.25,129.01,128.57,128.55,128.48,112.75,105.57,71.10,21.35,12.07.
hrms(esi):calculatedforc19h18o3sna[m na] =349.0874,found349.0857.
meltingpoint:126-127℃.
实施例二十六
苯并呋喃代替实施例一中的2-甲基噻吩,得到白色固体2-(苯基(苯磺酰基)甲基)苯并呋喃的产率为66%。
1hnmr(400mhz,chloroform-d)δ7.72–7.52(m,5h),7.48–7.22(m,9h),7.03(s,1h),5.57(s,1h).
13cnmr(101mhz,cdcl3)δ154.95,148.44,137.33,133.89,130.43,130.24,129.29,129.24,128.71,128.67,127.75,124.90,123.11,121.32,111.32,108.64,71.21.
hrms(esi):calculatedforc21h16o3sna[m na] =371.0718,foundc21h16o3sna[m na] =371.0707.
meltingpoint:164-165℃.
实施例二十七
硒吩代替实施例一中的2-甲基噻吩,得到白色固体2-(苯基(苯磺酰基)甲基)硒吩的产率为67%。
1hnmr(400mhz,chloroform-d)δ7.97(dd,j=5.6,1.2hz,1h),7.61–7.53(m,2h),7.53–7.38(m,3h),7.36–7.21(m,6h),7.12(dd,j=5.7,3.8hz,1h),5.53(s,1h).
13cnmr(101mhz,cdcl3)δ139.78,137.34,133.68,133.40,133.05,132.36,129.91,129.23,129.12,128.97,128.77,128.67,74.40.
hrms(esi):calculatedforc17h14o2ssena[m na] =384.9777,foundc17h14o2ssena[m na] =384.9772.
meltingpoint:161-162℃.
1.一种芳基(硫属杂芳基)甲基砜的合成方法,其特征在于:在催化剂量的布朗斯特酸催化下,醛、烃基亚磺酸钠和硫属杂环化合物在水中60℃下进行三组分反应合成芳基(硫属杂芳基)甲基砜。
2.权利要求1所述的一种芳基(硫属杂芳基)甲基砜的合成方法,其特征在于所说的醛为苯甲醛、4-氟苯甲醛、2-氯苯甲醛、4-氯苯甲醛、2-溴苯甲醛、4-甲基苯甲醛、2-呋喃甲醛、2-羟基苯甲醛、3-噻吩甲醛、甲醛、乙醛。
3.权利要求1所述的一种芳基(硫属杂芳基)甲基砜的合成方法,其特征在于所说的烃基亚磺酸钠为苯亚磺酸钠、2-氟苯亚磺酸钠、3-氟苯亚磺酸钠、4-氯苯亚磺酸钠、4-甲基苯亚磺酸钠、4-三氟甲基苯亚磺酸钠、4-叔丁基苯亚磺酸钠、甲基亚磺酸钠、乙基亚磺酸钠。
4.权利要求1所述的一种芳基(硫属杂芳基)甲基砜的合成方法,其特征在于所说的硫属杂环化合物为2-甲基噻吩、2-乙基噻吩、2-羟乙基噻吩、2-硫代甲基噻吩、噻吩、2-甲基呋喃、2-乙基呋喃、苯并呋喃、硒吩。
5.权利要求1所述的一种芳基(硫属杂芳基)甲基砜的合成方法,其特征在于所说的布朗斯特酸为硫酸,催化剂量指的是布朗斯特酸和硫属杂环化合物的摩尔比是0.5。
技术总结