Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions
The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<...
Ausführliche Beschreibung
Autor*in: |
Xiaoyu Zhou [verfasserIn] Jiaxin Yang [verfasserIn] Zhiqiang Hao [verfasserIn] Zhangang Han [verfasserIn] Jin Lin [verfasserIn] Guo-Liang Lu [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Übergeordnetes Werk: |
In: Molecules - MDPI AG, 2003, 28(2023), 21, p 7406 |
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Übergeordnetes Werk: |
volume:28 ; year:2023 ; number:21, p 7406 |
Links: |
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DOI / URN: |
10.3390/molecules28217406 |
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Katalog-ID: |
DOAJ095449361 |
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10.3390/molecules28217406 doi (DE-627)DOAJ095449361 (DE-599)DOAJ0e086ee2677748299894368af950548e DE-627 ger DE-627 rakwb eng QD241-441 Xiaoyu Zhou verfasserin aut Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. anilido-imine ligands copper complexes benzimidazole Chan–Lam coupling Organic chemistry Jiaxin Yang verfasserin aut Zhiqiang Hao verfasserin aut Zhangang Han verfasserin aut Jin Lin verfasserin aut Guo-Liang Lu verfasserin aut In Molecules MDPI AG, 2003 28(2023), 21, p 7406 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:28 year:2023 number:21, p 7406 https://doi.org/10.3390/molecules28217406 kostenfrei https://doaj.org/article/0e086ee2677748299894368af950548e kostenfrei https://www.mdpi.com/1420-3049/28/21/7406 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 28 2023 21, p 7406 |
spelling |
10.3390/molecules28217406 doi (DE-627)DOAJ095449361 (DE-599)DOAJ0e086ee2677748299894368af950548e DE-627 ger DE-627 rakwb eng QD241-441 Xiaoyu Zhou verfasserin aut Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. anilido-imine ligands copper complexes benzimidazole Chan–Lam coupling Organic chemistry Jiaxin Yang verfasserin aut Zhiqiang Hao verfasserin aut Zhangang Han verfasserin aut Jin Lin verfasserin aut Guo-Liang Lu verfasserin aut In Molecules MDPI AG, 2003 28(2023), 21, p 7406 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:28 year:2023 number:21, p 7406 https://doi.org/10.3390/molecules28217406 kostenfrei https://doaj.org/article/0e086ee2677748299894368af950548e kostenfrei https://www.mdpi.com/1420-3049/28/21/7406 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 28 2023 21, p 7406 |
allfields_unstemmed |
10.3390/molecules28217406 doi (DE-627)DOAJ095449361 (DE-599)DOAJ0e086ee2677748299894368af950548e DE-627 ger DE-627 rakwb eng QD241-441 Xiaoyu Zhou verfasserin aut Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. anilido-imine ligands copper complexes benzimidazole Chan–Lam coupling Organic chemistry Jiaxin Yang verfasserin aut Zhiqiang Hao verfasserin aut Zhangang Han verfasserin aut Jin Lin verfasserin aut Guo-Liang Lu verfasserin aut In Molecules MDPI AG, 2003 28(2023), 21, p 7406 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:28 year:2023 number:21, p 7406 https://doi.org/10.3390/molecules28217406 kostenfrei https://doaj.org/article/0e086ee2677748299894368af950548e kostenfrei https://www.mdpi.com/1420-3049/28/21/7406 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 28 2023 21, p 7406 |
allfieldsGer |
10.3390/molecules28217406 doi (DE-627)DOAJ095449361 (DE-599)DOAJ0e086ee2677748299894368af950548e DE-627 ger DE-627 rakwb eng QD241-441 Xiaoyu Zhou verfasserin aut Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. anilido-imine ligands copper complexes benzimidazole Chan–Lam coupling Organic chemistry Jiaxin Yang verfasserin aut Zhiqiang Hao verfasserin aut Zhangang Han verfasserin aut Jin Lin verfasserin aut Guo-Liang Lu verfasserin aut In Molecules MDPI AG, 2003 28(2023), 21, p 7406 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:28 year:2023 number:21, p 7406 https://doi.org/10.3390/molecules28217406 kostenfrei https://doaj.org/article/0e086ee2677748299894368af950548e kostenfrei https://www.mdpi.com/1420-3049/28/21/7406 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 28 2023 21, p 7406 |
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10.3390/molecules28217406 doi (DE-627)DOAJ095449361 (DE-599)DOAJ0e086ee2677748299894368af950548e DE-627 ger DE-627 rakwb eng QD241-441 Xiaoyu Zhou verfasserin aut Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. anilido-imine ligands copper complexes benzimidazole Chan–Lam coupling Organic chemistry Jiaxin Yang verfasserin aut Zhiqiang Hao verfasserin aut Zhangang Han verfasserin aut Jin Lin verfasserin aut Guo-Liang Lu verfasserin aut In Molecules MDPI AG, 2003 28(2023), 21, p 7406 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:28 year:2023 number:21, p 7406 https://doi.org/10.3390/molecules28217406 kostenfrei https://doaj.org/article/0e086ee2677748299894368af950548e kostenfrei https://www.mdpi.com/1420-3049/28/21/7406 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 28 2023 21, p 7406 |
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Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions |
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The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. |
abstractGer |
The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. |
abstract_unstemmed |
The treatment of 2-(ArNC(H))C<sub<6</sub<H<sub<4</sub<-HNC<sub<9</sub<H<sub<6</sub<N with <i<n</i<-BuLi and the subsequent addition of CuCl<sub<2</sub< afforded the anilido-aldimine Cu(II) complexes <b<1</b<-<b<5</b< Cu[{2-[ArN=C(H)]C<sub<6</sub<H<sub<4</sub<}N(8-C<sub<9</sub<H<sub<6</sub<N)]Cl (Ar = 2,6-<i<<sup<i</sup<</i<Pr<sub<2</sub<C<sub<6</sub<H<sub<3</sub< (<b<1</b<), 2,4,6-(CH<sub<3</sub<)<sub<3</sub<C<sub<6</sub<H<sub<2</sub< (<b<2</b<), 4-OCH<sub<3</sub<C<sub<6</sub<H<sub<4</sub< (<b<3</b<), 4-BrC<sub<6</sub<H<sub<4</sub< (<b<4</b<), 4-ClC<sub<6</sub<H<sub<4</sub< (<b<5</b<)), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that <b<2</b< and <b<4</b< are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry. These Cu(II) complexes have exhibited excellent catalytic activity in the Chan–Lam coupling reactions of benzimidazole derivatives with arylboronic acids, achieving the highest yields of up to 96%. |
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21, p 7406 |
title_short |
Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan−Lam Reactions |
url |
https://doi.org/10.3390/molecules28217406 https://doaj.org/article/0e086ee2677748299894368af950548e https://www.mdpi.com/1420-3049/28/21/7406 https://doaj.org/toc/1420-3049 |
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Jiaxin Yang Zhiqiang Hao Zhangang Han Jin Lin Guo-Liang Lu |
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2024-07-03T14:43:44.780Z |
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