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Honghai Zhang - One of the best experts on this subject based on the ideXlab platform.
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Controlled Pd(0)/t‑Bu3P‑Catalyzed Suzuki Cross-Coupling Polymerization of AB-Type Monomers with PhPd(t‑Bu3P)I or Pd2(dba)3/t‑Bu3P/ArI as the Initiator
2016Co-Authors: Honghai Zhang, Chunhui XingAbstract:Controlled Pd(0)/t-Bu3P-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers via the chain-growth mechanism with an ArPd(t-Bu3P)I complex as the initiator are described. ArPd(t-Bu3P)I complexes, either prepurified or generated in situ from Pd2(dba)3/t-Bu3P/ArI (dba = dibenzylideneacetone) without separation/purification, were found to be efficient initiators in general for the controlled Suzuki Cross-Coupling polymerization, with narrow polydispersity indexes (PDIs) of 1.13–1.35 being observed. The Pd2(dba)3/t-Bu3P/p-BrC6H4I combination was identified as a highly robust initiator system, with PDIs of ≤1.20 in general and as low as 1.13 being obtained. Higher number-average molecular weights (Mn) were achieved without a significant increase in the PDI (from 1.14 for a polymer with a Mn = 9500 to 1.20 for a polymer with Mn = 31 400) by using a smaller amount of the Pd2(dba)3/t-Bu3P/p-BrC6H4I initiator in the polymerization
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t bu3p coordinated 2 phenylaniline based palladacycle complex as a precatalyst for the Suzuki Cross Coupling polymerization of aryl dibromides with aryldiboronic acids
ACS Macro Letters, 2013Co-Authors: Honghai Zhang, Chunhui Xing, Georges Bouobda TsemoAbstract:t -Bu3P-Coordinated 2-phenylaniline-based palladacycle complex, [2'-(amino-kN)[1,1'-biphenyl]-2-yl-kC]chloro(tri-t-butylphosphine)palladium, as a general, highly efficient precatalyst for the Suzuki Cross-Coupling polymerization of aryl dibromides with aryldiboronic acids is described. Such t-Bu3P-coordinated 2-aminobiphenyl-based palladacycle complex-catalyzed Suzuki Cross-Coupling polymerization afforded polymers within an hour, with the yields and the molecular weights comparable to or higher than that of polymers obtained by using other palladium catalysts with much longer polymerization time. Our study provided a highly efficient catalyst system for the Suzuki Cross-Coupling polymerization of aryl dihalides with aryldiboronic acids. Our study also paved the road for us to investigate other monodentate ligand-coordinated palladacycle complexes including N-heterocyclic carbine-coordinated ones for Cross-Coupling polymerizations.
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t‑Bu3P‑Coordinated 2‑Phenylaniline-Based Palladacycle Complex as a Precatalyst for the Suzuki Cross-Coupling Polymerization of Aryl Dibromides with Aryldiboronic Acids
2013Co-Authors: Honghai Zhang, Chunhui Xing, Georges Bouobda TsemoAbstract:t-Bu3P-coordinated 2-phenylaniline-based palladacycle complex, [2′-(amino-kN)[1,1′-biphenyl]-2-yl-kC]chloro(trit-butylphosphine)palladium, as a general, highly efficient precatalyst for the Suzuki Cross-Coupling polymerization of aryl dibromides with aryldiboronic acids is described. Such t-Bu3P-coordinated 2-aminobiphenyl-based palladacycle complex-catalyzed Suzuki Cross-Coupling polymerization afforded polymers within an hour, with the yields and the molecular weights comparable to or higher than that of polymers obtained by using other palladium catalysts with much longer polymerization time. Our study provided a highly efficient catalyst system for the Suzuki Cross-Coupling polymerization of aryl dihalides with aryldiboronic acids. Our study also paved the road for us to investigate other monodentate ligand-coordinated palladacycle complexes including N-heterocyclic carbene-coordinated ones for Cross-Coupling polymerizations
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controlled pd 0 t bu3p catalyzed Suzuki Cross Coupling polymerization of ab type monomers with phpd t bu3p i or pd2 dba 3 t bu3p ari as the initiator
Journal of the American Chemical Society, 2012Co-Authors: Honghai Zhang, Chunhui XingAbstract:Controlled Pd(0)/t-Bu3P-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers via the chain-growth mechanism with an ArPd(t-Bu3P)I complex as the initiator are described. ArPd(t-Bu3P)I complexes, either prepurified or generated in situ from Pd2(dba)3/t-Bu3P/ArI (dba = dibenzylideneacetone) without separation/purification, were found to be efficient initiators in general for the controlled Suzuki Cross-Coupling polymerization, with narrow polydispersity indexes (PDIs) of 1.13–1.35 being observed. The Pd2(dba)3/t-Bu3P/p-BrC6H4I combination was identified as a highly robust initiator system, with PDIs of ≤1.20 in general and as low as 1.13 being obtained. Higher number-average molecular weights (Mn) were achieved without a significant increase in the PDI (from 1.14 for a polymer with a Mn = 9500 to 1.20 for a polymer with Mn = 31 400) by using a smaller amount of the Pd2(dba)3/t-Bu3P/p-BrC6H4I initiator in the polymerization.
Chunhui Xing - One of the best experts on this subject based on the ideXlab platform.
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Controlled Pd(0)/t‑Bu3P‑Catalyzed Suzuki Cross-Coupling Polymerization of AB-Type Monomers with PhPd(t‑Bu3P)I or Pd2(dba)3/t‑Bu3P/ArI as the Initiator
2016Co-Authors: Honghai Zhang, Chunhui XingAbstract:Controlled Pd(0)/t-Bu3P-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers via the chain-growth mechanism with an ArPd(t-Bu3P)I complex as the initiator are described. ArPd(t-Bu3P)I complexes, either prepurified or generated in situ from Pd2(dba)3/t-Bu3P/ArI (dba = dibenzylideneacetone) without separation/purification, were found to be efficient initiators in general for the controlled Suzuki Cross-Coupling polymerization, with narrow polydispersity indexes (PDIs) of 1.13–1.35 being observed. The Pd2(dba)3/t-Bu3P/p-BrC6H4I combination was identified as a highly robust initiator system, with PDIs of ≤1.20 in general and as low as 1.13 being obtained. Higher number-average molecular weights (Mn) were achieved without a significant increase in the PDI (from 1.14 for a polymer with a Mn = 9500 to 1.20 for a polymer with Mn = 31 400) by using a smaller amount of the Pd2(dba)3/t-Bu3P/p-BrC6H4I initiator in the polymerization
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t bu3p coordinated 2 phenylaniline based palladacycle complex as a precatalyst for the Suzuki Cross Coupling polymerization of aryl dibromides with aryldiboronic acids
ACS Macro Letters, 2013Co-Authors: Honghai Zhang, Chunhui Xing, Georges Bouobda TsemoAbstract:t -Bu3P-Coordinated 2-phenylaniline-based palladacycle complex, [2'-(amino-kN)[1,1'-biphenyl]-2-yl-kC]chloro(tri-t-butylphosphine)palladium, as a general, highly efficient precatalyst for the Suzuki Cross-Coupling polymerization of aryl dibromides with aryldiboronic acids is described. Such t-Bu3P-coordinated 2-aminobiphenyl-based palladacycle complex-catalyzed Suzuki Cross-Coupling polymerization afforded polymers within an hour, with the yields and the molecular weights comparable to or higher than that of polymers obtained by using other palladium catalysts with much longer polymerization time. Our study provided a highly efficient catalyst system for the Suzuki Cross-Coupling polymerization of aryl dihalides with aryldiboronic acids. Our study also paved the road for us to investigate other monodentate ligand-coordinated palladacycle complexes including N-heterocyclic carbine-coordinated ones for Cross-Coupling polymerizations.
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t‑Bu3P‑Coordinated 2‑Phenylaniline-Based Palladacycle Complex as a Precatalyst for the Suzuki Cross-Coupling Polymerization of Aryl Dibromides with Aryldiboronic Acids
2013Co-Authors: Honghai Zhang, Chunhui Xing, Georges Bouobda TsemoAbstract:t-Bu3P-coordinated 2-phenylaniline-based palladacycle complex, [2′-(amino-kN)[1,1′-biphenyl]-2-yl-kC]chloro(trit-butylphosphine)palladium, as a general, highly efficient precatalyst for the Suzuki Cross-Coupling polymerization of aryl dibromides with aryldiboronic acids is described. Such t-Bu3P-coordinated 2-aminobiphenyl-based palladacycle complex-catalyzed Suzuki Cross-Coupling polymerization afforded polymers within an hour, with the yields and the molecular weights comparable to or higher than that of polymers obtained by using other palladium catalysts with much longer polymerization time. Our study provided a highly efficient catalyst system for the Suzuki Cross-Coupling polymerization of aryl dihalides with aryldiboronic acids. Our study also paved the road for us to investigate other monodentate ligand-coordinated palladacycle complexes including N-heterocyclic carbene-coordinated ones for Cross-Coupling polymerizations
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controlled pd 0 t bu3p catalyzed Suzuki Cross Coupling polymerization of ab type monomers with phpd t bu3p i or pd2 dba 3 t bu3p ari as the initiator
Journal of the American Chemical Society, 2012Co-Authors: Honghai Zhang, Chunhui XingAbstract:Controlled Pd(0)/t-Bu3P-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers via the chain-growth mechanism with an ArPd(t-Bu3P)I complex as the initiator are described. ArPd(t-Bu3P)I complexes, either prepurified or generated in situ from Pd2(dba)3/t-Bu3P/ArI (dba = dibenzylideneacetone) without separation/purification, were found to be efficient initiators in general for the controlled Suzuki Cross-Coupling polymerization, with narrow polydispersity indexes (PDIs) of 1.13–1.35 being observed. The Pd2(dba)3/t-Bu3P/p-BrC6H4I combination was identified as a highly robust initiator system, with PDIs of ≤1.20 in general and as low as 1.13 being obtained. Higher number-average molecular weights (Mn) were achieved without a significant increase in the PDI (from 1.14 for a polymer with a Mn = 9500 to 1.20 for a polymer with Mn = 31 400) by using a smaller amount of the Pd2(dba)3/t-Bu3P/p-BrC6H4I initiator in the polymerization.
Hui Guo - One of the best experts on this subject based on the ideXlab platform.
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controlled pd 0 ad3p catalyzed Suzuki Cross Coupling polymerization of ab type monomers with ad3p coordinated acetanilide based palladacycle complex as initiator
ACS Macro Letters, 2017Co-Authors: Jie Dong, Hui GuoAbstract:Controlled Pd(0)-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers with tris(1-adamantyl)phosphine (Ad3P) as the ligand was described. Ad3P-coordinated acetanilide-based palladacycle complex (1) was demonstrated to be an efficient initiator for controlled Suzuki Cross-Coupling polymerization, affording polymers with narrow Đs and well-controlled end groups. Our study provided an efficient ligand and an efficient initiator for controlled Suzuki Cross-Coupling polymerizations.
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Controlled Pd(0)/Ad3P‑Catalyzed Suzuki Cross-Coupling Polymerization of AB-Type Monomers with Ad3P‑Coordinated Acetanilide-Based Palladacycle Complex as Initiator
2017Co-Authors: Jie Dong, Hui GuoAbstract:Controlled Pd(0)-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers with tris(1-adamantyl)phosphine (Ad3P) as the ligand was described. Ad3P-coordinated acetanilide-based palladacycle complex (1) was demonstrated to be an efficient initiator for controlled Suzuki Cross-Coupling polymerization, affording polymers with narrow Đs and well-controlled end groups. Our study provided an efficient ligand and an efficient initiator for controlled Suzuki Cross-Coupling polymerizations
Georges Bouobda Tsemo - One of the best experts on this subject based on the ideXlab platform.
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t bu3p coordinated 2 phenylaniline based palladacycle complex as a precatalyst for the Suzuki Cross Coupling polymerization of aryl dibromides with aryldiboronic acids
ACS Macro Letters, 2013Co-Authors: Honghai Zhang, Chunhui Xing, Georges Bouobda TsemoAbstract:t -Bu3P-Coordinated 2-phenylaniline-based palladacycle complex, [2'-(amino-kN)[1,1'-biphenyl]-2-yl-kC]chloro(tri-t-butylphosphine)palladium, as a general, highly efficient precatalyst for the Suzuki Cross-Coupling polymerization of aryl dibromides with aryldiboronic acids is described. Such t-Bu3P-coordinated 2-aminobiphenyl-based palladacycle complex-catalyzed Suzuki Cross-Coupling polymerization afforded polymers within an hour, with the yields and the molecular weights comparable to or higher than that of polymers obtained by using other palladium catalysts with much longer polymerization time. Our study provided a highly efficient catalyst system for the Suzuki Cross-Coupling polymerization of aryl dihalides with aryldiboronic acids. Our study also paved the road for us to investigate other monodentate ligand-coordinated palladacycle complexes including N-heterocyclic carbine-coordinated ones for Cross-Coupling polymerizations.
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t‑Bu3P‑Coordinated 2‑Phenylaniline-Based Palladacycle Complex as a Precatalyst for the Suzuki Cross-Coupling Polymerization of Aryl Dibromides with Aryldiboronic Acids
2013Co-Authors: Honghai Zhang, Chunhui Xing, Georges Bouobda TsemoAbstract:t-Bu3P-coordinated 2-phenylaniline-based palladacycle complex, [2′-(amino-kN)[1,1′-biphenyl]-2-yl-kC]chloro(trit-butylphosphine)palladium, as a general, highly efficient precatalyst for the Suzuki Cross-Coupling polymerization of aryl dibromides with aryldiboronic acids is described. Such t-Bu3P-coordinated 2-aminobiphenyl-based palladacycle complex-catalyzed Suzuki Cross-Coupling polymerization afforded polymers within an hour, with the yields and the molecular weights comparable to or higher than that of polymers obtained by using other palladium catalysts with much longer polymerization time. Our study provided a highly efficient catalyst system for the Suzuki Cross-Coupling polymerization of aryl dihalides with aryldiboronic acids. Our study also paved the road for us to investigate other monodentate ligand-coordinated palladacycle complexes including N-heterocyclic carbene-coordinated ones for Cross-Coupling polymerizations
Jie Dong - One of the best experts on this subject based on the ideXlab platform.
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controlled pd 0 ad3p catalyzed Suzuki Cross Coupling polymerization of ab type monomers with ad3p coordinated acetanilide based palladacycle complex as initiator
ACS Macro Letters, 2017Co-Authors: Jie Dong, Hui GuoAbstract:Controlled Pd(0)-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers with tris(1-adamantyl)phosphine (Ad3P) as the ligand was described. Ad3P-coordinated acetanilide-based palladacycle complex (1) was demonstrated to be an efficient initiator for controlled Suzuki Cross-Coupling polymerization, affording polymers with narrow Đs and well-controlled end groups. Our study provided an efficient ligand and an efficient initiator for controlled Suzuki Cross-Coupling polymerizations.
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Controlled Pd(0)/Ad3P‑Catalyzed Suzuki Cross-Coupling Polymerization of AB-Type Monomers with Ad3P‑Coordinated Acetanilide-Based Palladacycle Complex as Initiator
2017Co-Authors: Jie Dong, Hui GuoAbstract:Controlled Pd(0)-catalyzed Suzuki Cross-Coupling polymerizations of AB-type monomers with tris(1-adamantyl)phosphine (Ad3P) as the ligand was described. Ad3P-coordinated acetanilide-based palladacycle complex (1) was demonstrated to be an efficient initiator for controlled Suzuki Cross-Coupling polymerization, affording polymers with narrow Đs and well-controlled end groups. Our study provided an efficient ligand and an efficient initiator for controlled Suzuki Cross-Coupling polymerizations
