CN116574029A - 一种由二芳基碘鎓盐合成偶氮苯的方法 - Google Patents
一种由二芳基碘鎓盐合成偶氮苯的方法 Download PDFInfo
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- 239000007810 chemical reaction solvent Substances 0.000 claims 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 2
- 125000005843 halogen group Chemical group 0.000 claims 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 2
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- 238000004896 high resolution mass spectrometry Methods 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
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- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- SVJSEJOASMWXGQ-UHFFFAOYSA-N (4-bromophenyl)-phenyldiazene Chemical compound C1=CC(Br)=CC=C1N=NC1=CC=CC=C1 SVJSEJOASMWXGQ-UHFFFAOYSA-N 0.000 description 1
- LGCRPKOHRIXSEG-UHFFFAOYSA-N (4-methoxyphenyl)-phenyldiazene Chemical compound C1=CC(OC)=CC=C1N=NC1=CC=CC=C1 LGCRPKOHRIXSEG-UHFFFAOYSA-N 0.000 description 1
- 125000006275 3-bromophenyl group Chemical group [H]C1=C([H])C(Br)=C([H])C(*)=C1[H] 0.000 description 1
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- FICSPQVTDKNMFD-FOCLMDBBSA-N Clc1ccc(cc1)\N=N\c1ccc(Br)cc1 Chemical compound Clc1ccc(cc1)\N=N\c1ccc(Br)cc1 FICSPQVTDKNMFD-FOCLMDBBSA-N 0.000 description 1
- 241001562081 Ikeda Species 0.000 description 1
- CBBOPZBGHQVCGA-ISLYRVAYSA-N N#Cc1ccc(cc1)\N=N\c1ccc(cc1)C#N Chemical compound N#Cc1ccc(cc1)\N=N\c1ccc(cc1)C#N CBBOPZBGHQVCGA-ISLYRVAYSA-N 0.000 description 1
- 238000007202 Nickl synthesis reaction Methods 0.000 description 1
- 238000003833 Wallach reaction Methods 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000006149 azo coupling reaction Methods 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
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- VEVQNDVHZNOSHX-UHFFFAOYSA-N bis(3-bromophenyl)diazene Chemical compound BrC1=CC=CC(N=NC=2C=C(Br)C=CC=2)=C1 VEVQNDVHZNOSHX-UHFFFAOYSA-N 0.000 description 1
- GIJSVMOPNUOZBC-CCEZHUSRSA-N c1cc(C)ccc1\N=N\c1ccccc1 Chemical compound c1cc(C)ccc1\N=N\c1ccccc1 GIJSVMOPNUOZBC-CCEZHUSRSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C245/00—Compounds containing chains of at least two nitrogen atoms with at least one nitrogen-to-nitrogen multiple bond
- C07C245/02—Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides
- C07C245/06—Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings
- C07C245/08—Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings with the two nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings, e.g. azobenzene
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明属于化学合成领域,涉及一种操作简便、步骤经济的N‑芳基邻苯二甲酰肼与二芳基碘鎓盐双C‑N偶联反应制备偶氮苯化合物的方法。以N‑芳基邻苯二甲酰肼和二芳基碘鎓盐为底物,适当的反应条件下,一步得到偶氮苯化合物。本发明为偶氮苯的合成提供了更为经济、简便的合成方法,具有步骤简便、原子经济性高、重复性好、产率优良、避免使用贵重金属等优点,有望实现工业化规模生产。
Description
技术领域
本发明属于化学合成领域,涉及一种操作简便、步骤经济、产率高的N-芳基邻苯二甲酰肼与二芳基碘鎓盐双C-N偶联反应制备偶氮苯化合物的方法。
背景技术
偶氮苯化合物是功能性材料以及生物活性材料的重要组成部分,其已被广泛用于有机染料和颜料[参见;E. Merino, Chem. Soc. Rev.,2011, 40, 3835–3853.]。食品添加剂[参见;S. H. Lee, E. Moroz, B. Castagner , J.-C. Leroux, J. Am. Chem. Soc.,2014, 136, 12868–12871.]、治疗剂[参见;R. G. Anderson, G. Nickless, Analyst,1967, 92, 207–238.]和光开关 [参见;S. Crespi, N. A. Simeth, B. König, Nat.Rev. Chem., 2019, 3, 133–146.]。
目前所报道的合成偶氮苯的方法主要有如重氮偶联[参见;R K. Haghbeen ,E.W. Tan, Eur. J. Org. Chem., 2006, 4884-4890.]和N=N偶联[参见;E. Merino, Chem.Soc. Rev., 2011, 40, 3835−3853.],其中包括苯胺的氧化[参见;N. Sakai, K. Fujii,S. Nabeshima, R. Ikeda, T. Konakahara, Chem. Commun., 2010, 46, 3173−3175.]、芳香族硝基烯烃的还原[参见;E. Baer, A. L. Tosoni, J. Am. Chem. Soc., 1956, 78,2857−2858.]和Mills-Wallach反应[参见;M. H. Davey, V. Y. Lee, R. D. Miller , T.J. Marks, J. Org. Chem., 1999, 64, 4976–4979.]。 由于这些方法固有的反应机制,它们受到底物范围有限或效率低下的影响,当合成不对成偶氮苯时不可避免的会产生自偶联产物,因此开发一种简洁、高效、的合成偶氮苯的方法意义重大。
发明内容
本发明的目的在于提供一种反应条件温和、产率高、工艺简单、操作方便、成本低、环境污染小,有望实现工业化大规模生产偶氮苯的制备方法。
本发明的思路:如图1所示,以N-芳基邻苯二甲酰肼与二芳基高碘盐为底物,将催化剂、添加剂和溶剂加入到反应器,启动反应,反应结束后移除溶剂,通过柱层析或重结晶获得产物。
其中:
(1) 反应体系中N-芳基邻苯二甲酰肼与二芳基碘鎓盐的摩尔投料比为1:0.25~1:10,优选为1:1。
(2) 其中,添加剂优选为碳酸钾。
(3) 金属催化剂可以为铜盐,优选为Cu(OAc)2。
(4) 反应中金属催化剂用量可以为1~200 mol%当量(相对于N-芳基邻苯二甲酰肼),优选5 mol%。
(5) 反应温度可以为0℃~200℃,优选110℃。
(6) 反应时间可以为0.1~96小时,优选12小时。
本发明与现有技术相比,其优点是工艺简单、成本低廉、产生的废渣少,为五芳基咪唑鎓盐的合成提供一种新方法,有望实现工业化规模生产。
附图说明
图1为本发明制备偶氮苯化合物3的合成反应式。
图2为本发明制备产物1,2-二苯基偶氮苯(3a)的核磁共振氢谱。
具体实施方式
实施例1:(E)-1,2-二苯基二氮烯(产物3a)的合成方法:称量N-苯基邻苯二甲酰肼(440毫克)、二苯基碘鎓四氟硼酸盐(147毫克),投料比为1:1,Ⅰ B族的铜盐Cu(OAc)2(2.0毫克)(相对于N-苯基邻苯二甲酰肼用量为5 mol%当量),磷酸钾(42毫克)加入非质子性溶剂N,N-二甲基甲酰胺(1.0毫升)作为反应溶剂,在空气氛围中110℃条件下反应12小时。反应完成后移除溶剂,经柱层析分离提纯,得到橙色固体干燥即为纯产品1,2-二苯基偶氮苯,收率98%。核磁共振氢谱如图2所示:(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1HNMR(500 MHz,CDCl3):δ = 7.99‒7.97 (m, 4H), 7.56‒7.53 (m, 4H), 7.51‒7.48 (m,2H) ppm.。高分辨质谱 (ESI)([M+H]+) 计算值 C12H11N2 +,183.0917,测试值,183.0918。
实施例2:(E)-1,2-二间甲苯基二氮烯(产物3b)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-间甲苯基邻苯二甲酰肼;二苯基碘鎓四氟硼酸盐换为苯基(间甲苯)碘鎓四氟硼酸盐,收率96%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ = 7.75‒7.74 (m, 4H), 7.42 (t, J = 7.5 Hz, 2H), 7.30(d, J = 7.5 Hz, 2H), 2.47 (s, 6H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C14H15N2 +,211.1230,测试值,211.1232。
实施例3:(E)-1,2-双(3-溴苯基)二氮烯(产物3c)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-间溴苯基邻苯二甲酰肼;二苯基碘鎓四氟硼酸盐换为(3-溴苯基)(苯基)碘鎓四氟硼酸盐,收率91%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ = 8.05 (s, 2H), 7.88 (d, J = 8.0 Hz, 2H), 7.62(d, J = 8.0 Hz, 2H), 7.41 (t, J = 8.0 Hz, 2H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C12H9N2 +,340.9107,测试值,340.9108。
实施例4:(E)-1,2-二对甲苯二氮烯(产物3d)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-对甲苯基邻苯二甲酰肼;二苯基碘鎓四氟硼酸盐换为苯基(对甲苯)碘鎓四氟硼酸盐,收率97%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ = 7.84 (d, J = 8.5 Hz, 4H), 7.53 (d, J = 8.5 Hz, 4H),1.38 (s, 18H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C14H15N2 +,211.1230,测试值,211.1234。
实施例5:(E)-1,2-双(4-(叔丁基)苯基)二氮烯(产物3e)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-对叔丁苯基邻苯二甲酰肼;二苯基碘鎓四氟硼酸盐换为(4-(叔丁基)苯基)(苯基)碘鎓四氟硼酸盐,收率91%。(氘代氯仿为溶剂,BRUKERAscend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ = 8.05 (s, 2H), 7.88 (d, J = 8.0Hz, 2H), 7.62 (d, J = 8.0 Hz, 2H), 7.41 (t, J = 8.0 Hz, 2H) ppm。高分辨质谱(ESI)([M+H]+) 计算值 C20H27N2 +,295.2169,测试值,295.2170。
实施例6:(E)-4,4'-(二氮烯-1,2-二基)二苯甲腈(产物3f)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-对氰基苯基邻苯二甲酰肼;二苯基碘鎓四氟硼酸盐换为(4-氰基苯基)(苯基)碘鎓四氟硼酸盐,收率94%。(氘代氯仿为溶剂,BRUKERAscend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =8.03 (d, J = 8.5 Hz, 4H), 7.85(d, J = 9.0 Hz, 4H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C14H9N2 +,233.0822,测试值,233.0825。
实施例7:(E)-1-苯基-2-(间甲苯基)二氮烯(产物3g)的合成方法:实施方法同实施例6,将底物二苯基碘鎓四氟硼酸盐换为苯基(间甲苯)碘鎓四氟硼酸盐,收率93%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.92 (d, J =7.5 Hz, 2H), 7.74‒7.73 (m, 2H), 7.52 (t, J =7.5 Hz, 2H), 7.47 (t, J =7.5 Hz,1H), 7.41 (t, J = 7.5 Hz, 1H), 7.30 (d, J = 7.5 Hz, 1H), 2.47 (s, 3H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C13H13N2 +,197.1073,测试值,197.1076。
实施例8:(E)-1-(3-溴苯基)-2-苯基二苯胺(产物3h)的合成方法:实施方法同实施例1,将底物二苯基碘鎓四氟硼酸盐换为(3-溴苯基)(苯基)碘鎓四氟硼酸盐,收率94%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =8.07(d, J = 2.0 Hz, 1H), 7.94‒7.92 (m, 2H), 7.90‒7.88 (m, 1H), 7.61‒7.59 (m, 1H),7.55‒7.49 (m, 3H), 7.40 (t, J = 8.0 Hz, 1H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C12H10BrN2 +,261.0022,测试值,261.0023。
实施例9:(E)-1-苯基-2-(对甲苯基)二氮烯(产物3i)的合成方法:实施方法同实施例1,将底物二苯基碘鎓四氟硼酸盐换为(4-对甲苯基)(苯基)碘鎓四氟硼酸盐,收率98%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.92(d, J = 7.5 Hz, 2H), 7.85 (d, J = 8.5 Hz, 2H), 7.52 (t, J = 7.0 Hz, 2H), 7.47(t, J = 7.0 Hz, 1H), 7.33 (d, J = 8.0 Hz, 2H), 2.45 (s, 3H) ppm。高分辨质谱(ESI)([M+H]+) 计算值 C13H13N2 +,197.1073,测试值,197.1074。
实施例10:(E)-1-(4-甲氧基苯基)-2-苯基二氮烯(产物3j)的合成方法:实施方法同实施例1,将底物二苯基碘鎓四氟硼酸盐换为(4-对甲氧苯基)(苯基)碘鎓四氟硼酸盐,收率90%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.94 (d, J = 9.0 Hz, 2H), 7.85 (d, J = 8.0 Hz, 2H), 7.51 (t, J = 7.0 Hz, 2H),7.44 (t, J = 7.0 Hz, 1H), 7.03 (d, J = 9.0 Hz, 2H), 3.90 (s, 3H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C13H13N2O+,213.1022,测试值,213.1027。
实施例11:(E)-1-(4-溴苯基)-2-苯基二氮烯(产物3k)的合成方法:实施方法同实施例1,将底物二苯基碘鎓四氟硼酸盐换为(4-溴苯基)(苯基)碘鎓四氟硼酸盐,收率96%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.92(d, J = 8.0 Hz, 2H), 7.81 (d, J = 8.5 Hz, 2H), 7.65 (d, J = 9.0 Hz, 2H),7.54‒7.47 (m, 3H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C12H10BrN2 +,261.0022,测试值,261.0025。
实施例12:(E)-4-(苯基偶氮)苯甲腈(产物3l)的合成方法:实施方法同实施例1,将底物二苯基碘鎓四氟硼酸盐换为(4-氰基苯基)(苯基)碘鎓四氟硼酸盐,收率96%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.99 (d, J =8.5 Hz, 2H), 7.97‒7.95 (m, 2H), 7.82 (d, J = 8.5 Hz, 2H), 7.56‒7.54 (m, 3H)ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C13H10N3 +,208.0869,测试值,183.0918。
实施例13:(E)-1-(4-溴苯基)-2-(4-(叔丁基)苯基)二氮烯(产物3m)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-对溴苯基邻苯二甲酰肼,底物二苯基碘鎓四氟硼酸盐换为(4-叔丁苯基)(苯基)碘鎓四氟硼酸盐,收率97%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.85 (d, J = 8.5 Hz,2H), 7.79 (d, J = 9.0 Hz, 2H), 7.64 (d, J = 8.5 Hz, 2H), 7.54 (d, J = 9.0 Hz,2H), 1.38 (s, 9H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C16H18BrN2 +,317.0648,测试值,317.0650。
实施例14:(E)-1-(4-溴苯基)-2-(4-氯苯基)二氮烯的(产物3n)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-对溴苯基邻苯二甲酰肼,底物二苯基碘鎓四氟硼酸盐换为(4-氯苯基)(苯基)碘鎓四氟硼酸盐,收率99%。(氘代氯仿为溶剂,BRUKERAscend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ =7.87 (d, J = 8.5 Hz, 2H), 7.79(d, J = 8.5 Hz, 2H), 7.65 (d, J = 9.0 Hz, 2H), 7.49 (d, J = 9.0 Hz, 2H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C12H11N2 +,294.9632,测试值,294.9634。
实施例15:(E)-1-(4-乙基苯基)-2-对甲苯基二氮苯的(产物3o)的合成方法:实施方法同实施例1,将底物N-苯基邻苯二甲酰肼换为N-对甲苯基邻苯二甲酰肼,底物二苯基碘鎓四氟硼酸盐换为(4-乙基苯基)(苯基)碘鎓四氟硼酸盐,收率95%。(氘代氯仿为溶剂,BRUKER Ascend500型核磁共振仪)1H NMR(500 MHz,CDCl3):δ = 7.86‒7.82 (m, 4H),7.35‒7.31 (m, 4H), 2.74 (q, J = 7.5 Hz, 2H), 2.44 (s, 3H), 1.30 (td, J = 7.5Hz, 1.0 Hz, 3H) ppm。高分辨质谱 (ESI)([M+H]+) 计算值 C15H17N2 +,225.1386,测试值,225.1389。
Claims (2)
1.一种由二芳基碘鎓盐合成偶氮苯化合物的方法,其特征在于偶氮苯化合物的结构式为:,其中,R1可以为 氢、甲基、乙基、甲氧基、氰基、叔丁基、卤素原子;R2可以为 氢、甲基、乙基、甲氧基、氰基、叔丁基、卤素原子。
2.根据权利要求1所述的一种由二芳基碘鎓盐合成偶氮苯化合物的方法,其特征在于,该方法具有如下步骤:
在空气氛围中,N-芳基邻苯二甲酰肼与二芳基碘鎓盐的摩尔投料比为1:1称取原料,并加入相对于N-芳基邻苯二甲酰肼5 mol%的金属催化剂,然后加入相对于N-芳基邻苯二甲酰肼2当量的碱性添加剂,加入反应溶剂,在100℃下进行反应12小时,反应结束后,经柱层析分离提纯,即得到偶氮苯化合物;
所述N-芳基邻苯二甲酰肼为N-苯基邻苯二甲酰肼、N-间甲苯基邻苯二甲酰肼、N-间溴苯基邻苯二甲酰肼、N-对甲苯基邻苯二甲酰肼、N-对叔丁苯基邻苯二甲酰肼、N-对氰基苯基邻苯二甲酰肼、N-对溴苯基邻苯二甲酰肼;
所述二芳基碘鎓盐为二苯基碘鎓四氟硼酸盐、苯基(间甲苯基)碘鎓四氟硼酸盐、(3-溴苯基)(苯基)碘鎓四氟硼酸盐、苯基(对甲苯基)碘鎓四氟硼酸盐、 (4-(叔丁基)苯基)(苯基)碘鎓四氟硼酸盐、(4-氰基苯基)(苯基)碘鎓四氟硼酸盐、(4-对甲苯基)(苯基)碘鎓四氟硼酸盐、(4-对甲氧苯基)(苯基)碘鎓四氟硼酸盐、(4-溴苯基)(苯基)碘鎓四氟硼酸盐、(4-氯苯基)(苯基)碘鎓四氟硼酸盐、(4-乙基苯基)(苯基)碘鎓四氟硼酸盐;
所述催化剂为Cu(OAc)2;
所述碱是碳酸钾;
所述反应溶剂为N,N-二甲基甲酰胺。
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