The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Tahsien Chuang - One of the best experts on this subject based on the ideXlab platform.
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One-Pot Oxidative Coupling/Decyanation of 6,7-Diphenylindolizine-5-carbonitriles and 2,3-Diphenylquinolizine-4-carbonitriles.
The Journal of organic chemistry, 2019Co-Authors: Yihsuan Chen, Rongshiow Tang, Liyuan Chen, Tahsien ChuangAbstract:The one-pot Oxidative Coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl–aryl Oxidative Coupling reage...
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one pot Oxidative Coupling decyanation of 6 7 diphenylindolizine 5 carbonitriles and 2 3 diphenylquinolizine 4 carbonitriles
Journal of Organic Chemistry, 2019Co-Authors: Yihsuan Chen, Rongshiow Tang, Liyuan Chen, Tahsien ChuangAbstract:The one-pot Oxidative Coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl-aryl Oxidative Coupling reagents. The phenanthroindolizidinones and phenanthroquinolizidinones were produced in 52-89% yields under VOF3/trifluoroacetic acid or [bis(trifluoroacetoxy)iodo]benzene/BF3-mediated conditions. This represents a mild and efficient approach to construct these types of pentacyclic skeletons from the corresponding cyano group-activated aza-Diels-Alder cycloadducts. A plausible mechanism of the one-pot Oxidative Coupling/decyanation reaction was proposed.
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One-Pot Oxidative Coupling/Decyanation of 6,7-Diphenylindolizine-5-carbonitriles and 2,3-Diphenylquinolizine-4-carbonitriles
2019Co-Authors: Yihsuan Chen, Rongshiow Tang, Liyuan Chen, Tahsien ChuangAbstract:The one-pot Oxidative Coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl–aryl Oxidative Coupling reagents. The phenanthroindolizidinones and phenanthroquinolizidinones were produced in 52–89% yields under VOF3/trifluoroacetic acid or [bis(trifluoroacetoxy)iodo]benzene/BF3-mediated conditions. This represents a mild and efficient approach to construct these types of pentacyclic skeletons from the corresponding cyano group-activated aza-Diels–Alder cycloadducts. A plausible mechanism of the one-pot Oxidative Coupling/decyanation reaction was proposed
Can-cheng Guo - One of the best experts on this subject based on the ideXlab platform.
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Cobalt(II)—Porphyrin-Catalyzed Aerobic Oxidation: Oxidative Coupling of Phenols.
ChemInform, 2013Co-Authors: Qing Jiang, Wenbing Sheng, Mi Tian, Jie Tang, Can-cheng GuoAbstract:The first example of the cobalt–porphyrin-catalyzed aerobic Oxidative Coupling of phenols through Oxidative C–H functionalization has been developed. In the presence of T(p-OMe)PPCo and Na2CO3, the Oxidative Coupling of phenols with different substituents proceeded smoothly with O2 as a terminal oxidant to give the corresponding biaryl compounds in satisfactory yields. The biaryl derivatives are important in the area of pharmaceuticals and as ligands in metal catalysis. Preliminary mechanistic studies of this Oxidative Coupling reaction are also reported.
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Cobalt(II)–Porphyrin‐Catalyzed Aerobic Oxidation: Oxidative Coupling of Phenols
European Journal of Organic Chemistry, 2013Co-Authors: Qing Jiang, Wenbing Sheng, Mi Tian, Jie Tang, Can-cheng GuoAbstract:The first example of the cobalt–porphyrin-catalyzed aerobic Oxidative Coupling of phenols through Oxidative C–H functionalization has been developed. In the presence of T(p-OMe)PPCo and Na2CO3, the Oxidative Coupling of phenols with different substituents proceeded smoothly with O2 as a terminal oxidant to give the corresponding biaryl compounds in satisfactory yields. The biaryl derivatives are important in the area of pharmaceuticals and as ligands in metal catalysis. Preliminary mechanistic studies of this Oxidative Coupling reaction are also reported.
Yihsuan Chen - One of the best experts on this subject based on the ideXlab platform.
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One-Pot Oxidative Coupling/Decyanation of 6,7-Diphenylindolizine-5-carbonitriles and 2,3-Diphenylquinolizine-4-carbonitriles.
The Journal of organic chemistry, 2019Co-Authors: Yihsuan Chen, Rongshiow Tang, Liyuan Chen, Tahsien ChuangAbstract:The one-pot Oxidative Coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl–aryl Oxidative Coupling reage...
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one pot Oxidative Coupling decyanation of 6 7 diphenylindolizine 5 carbonitriles and 2 3 diphenylquinolizine 4 carbonitriles
Journal of Organic Chemistry, 2019Co-Authors: Yihsuan Chen, Rongshiow Tang, Liyuan Chen, Tahsien ChuangAbstract:The one-pot Oxidative Coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl-aryl Oxidative Coupling reagents. The phenanthroindolizidinones and phenanthroquinolizidinones were produced in 52-89% yields under VOF3/trifluoroacetic acid or [bis(trifluoroacetoxy)iodo]benzene/BF3-mediated conditions. This represents a mild and efficient approach to construct these types of pentacyclic skeletons from the corresponding cyano group-activated aza-Diels-Alder cycloadducts. A plausible mechanism of the one-pot Oxidative Coupling/decyanation reaction was proposed.
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One-Pot Oxidative Coupling/Decyanation of 6,7-Diphenylindolizine-5-carbonitriles and 2,3-Diphenylquinolizine-4-carbonitriles
2019Co-Authors: Yihsuan Chen, Rongshiow Tang, Liyuan Chen, Tahsien ChuangAbstract:The one-pot Oxidative Coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl–aryl Oxidative Coupling reagents. The phenanthroindolizidinones and phenanthroquinolizidinones were produced in 52–89% yields under VOF3/trifluoroacetic acid or [bis(trifluoroacetoxy)iodo]benzene/BF3-mediated conditions. This represents a mild and efficient approach to construct these types of pentacyclic skeletons from the corresponding cyano group-activated aza-Diels–Alder cycloadducts. A plausible mechanism of the one-pot Oxidative Coupling/decyanation reaction was proposed
Qing Jiang - One of the best experts on this subject based on the ideXlab platform.
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Cobalt(II)—Porphyrin-Catalyzed Aerobic Oxidation: Oxidative Coupling of Phenols.
ChemInform, 2013Co-Authors: Qing Jiang, Wenbing Sheng, Mi Tian, Jie Tang, Can-cheng GuoAbstract:The first example of the cobalt–porphyrin-catalyzed aerobic Oxidative Coupling of phenols through Oxidative C–H functionalization has been developed. In the presence of T(p-OMe)PPCo and Na2CO3, the Oxidative Coupling of phenols with different substituents proceeded smoothly with O2 as a terminal oxidant to give the corresponding biaryl compounds in satisfactory yields. The biaryl derivatives are important in the area of pharmaceuticals and as ligands in metal catalysis. Preliminary mechanistic studies of this Oxidative Coupling reaction are also reported.
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Cobalt(II)–Porphyrin‐Catalyzed Aerobic Oxidation: Oxidative Coupling of Phenols
European Journal of Organic Chemistry, 2013Co-Authors: Qing Jiang, Wenbing Sheng, Mi Tian, Jie Tang, Can-cheng GuoAbstract:The first example of the cobalt–porphyrin-catalyzed aerobic Oxidative Coupling of phenols through Oxidative C–H functionalization has been developed. In the presence of T(p-OMe)PPCo and Na2CO3, the Oxidative Coupling of phenols with different substituents proceeded smoothly with O2 as a terminal oxidant to give the corresponding biaryl compounds in satisfactory yields. The biaryl derivatives are important in the area of pharmaceuticals and as ligands in metal catalysis. Preliminary mechanistic studies of this Oxidative Coupling reaction are also reported.
Hiroaki Sasai - One of the best experts on this subject based on the ideXlab platform.
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Enantioselective Oxidative‐Coupling of Polycyclic Phenols.
ChemInform, 2014Co-Authors: Shinobu Takizawa, Junpei Kodera, Yasushi Yoshida, Makoto Sako, Stefanie Breukers, Dieter Enders, Hiroaki SasaiAbstract:Axially chiral vanadium complexes catalyze the enantioselective Oxidative-Coupling of polycyclic phenols to biphenols.
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Enantioselective Oxidative-Coupling of polycyclic phenols
Tetrahedron, 2014Co-Authors: Shinobu Takizawa, Junpei Kodera, Yasushi Yoshida, Makoto Sako, Stefanie Breukers, Dieter Enders, Hiroaki SasaiAbstract:Abstract Enantioselective Oxidative-Coupling of polycyclic phenols, such as 2-anthracenol, 9- or 3-phenanthrol, and 5-chrysenol was established by using vanadium(V/IV) catalysis under air or O 2 as a co-oxidant. In the vanadium catalyzed reaction, the corresponding Coupling products were obtained in good to excellent yields with up to 93% enantiomeric excess.
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chiral dinuclear vanadium v catalysts for Oxidative Coupling of 2 naphthols
Chemical Communications, 2008Co-Authors: Shinobu Takizawa, Tomomi Katayama, Chiaki Kameyama, Kiyotaka Onitsuka, Takeyuki Suzuki, Takeshi Yanagida, Tomoji Kawai, Hiroaki SasaiAbstract:Preparation and structural analysis of chiral dinuclear vanadium(v) catalysts with high catalytic activity for the Oxidative Coupling of 2-naphthols are described.
