101
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Catalysis of Radical Reactions: A Radical Chemistry Perspective. Angew Chem Int Ed Engl 2015; 55:58-102. [DOI: 10.1002/anie.201505090] [Citation(s) in RCA: 834] [Impact Index Per Article: 92.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Indexed: 01/25/2023]
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102
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Studer A, Curran DP. Katalyse von Radikalreaktionen: Konzepte aus Sicht der Radikalchemie. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505090] [Citation(s) in RCA: 280] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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103
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Liu K, Zhu C, Min J, Peng S, Xu G, Sun J. Stereodivergent Synthesis of N-Heterocycles by Catalyst-Controlled, Activity-Directed Tandem Annulation of Diazo Compounds with Amino Alkynes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507122] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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104
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Liu K, Zhu C, Min J, Peng S, Xu G, Sun J. Stereodivergent Synthesis of N‐Heterocycles by Catalyst‐Controlled, Activity‐Directed Tandem Annulation of Diazo Compounds with Amino Alkynes. Angew Chem Int Ed Engl 2015; 54:12962-7. [DOI: 10.1002/anie.201507122] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Kai Liu
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
| | - Chenghao Zhu
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
| | - Junxiang Min
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
| | - Shiyong Peng
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
| | - Guangyang Xu
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
| | - Jiangtao Sun
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
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105
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Xia L, Cai H, Lee YR. Microwave-assisted catalyst-free synthesis of diversely functionalized 2-amino-2H-chromene-3-carboxylates. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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106
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107
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Comanescu CC, Vyushkova M, Iluc VM. Palladium carbene complexes as persistent radicals. Chem Sci 2015; 6:4570-4579. [PMID: 28717474 PMCID: PMC5500858 DOI: 10.1039/c5sc01441g] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/18/2015] [Indexed: 11/21/2022] Open
Abstract
A series of palladium(ii) radical carbene complexes, [PC˙(sp2)P]PdI, [PC˙(sp2)P]PdBr, and [PC˙(sp2)P]PdCl (PC(sp3)H2P = bis[2-(di-iso-propylphosphino)-phenyl]methane), is described. Compound [PC˙(sp2)P]PdI dimerizes to {[PC(sp2)P]PdI}2 in the solid state, akin to the formation of Gomberg's dimer. While the bromo and the iodo derivatives could be obtained from the oxidation of [PC(sp2)P]Pd(PMe3) by the respective dihalogens, a halogen transfer reaction from CH2Cl2 was used for the formation of [PC˙(sp2)P]PdCl. The halogen transfer from CH2X2 (X = Cl, Br, I) could be used to obtain all three radical carbene palladium complexes and also allowed the isolation of [PC(CH2)P]Pd(PMe3), which is the result of methylene group transfer from CH2X2. Compound [PC(CH2)P]Pd(PMe3) was independently synthesized from [PC(CH3)HP]PdCl2, which contains a supporting ligand analogous to that of the radical carbene complexes but has one of the hydrogen atoms replaced by a methyl group. All three carbene radical species abstract a hydrogen from 9,10-dihydroanthracene or n Bu3SnH.
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Affiliation(s)
- C C Comanescu
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , IN 46556 , USA .
| | - M Vyushkova
- Notre Dame Radiation Laboratory , University of Notre Dame , Notre Dame , IN 46556 , USA
| | - V M Iluc
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , IN 46556 , USA .
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108
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Cai H, Xia L, Lee YR, Shim JJ, Kim SH. Construction of Diverse and Functionalized 2H-Chromenes by Organocatalytic Multicomponent Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500616] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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109
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Kong J, Meng T, Su J. A Unique Synthesis of 5,8-Difluoro-2H-chromene Using Silicone Oil as a Solvent. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00126] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianshe Kong
- Department of Discovery Chemistry, Merck Research Laboratory, 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Tao Meng
- Department of Discovery Chemistry, Merck Research Laboratory, 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Jing Su
- Department of Discovery Chemistry, Merck Research Laboratory, 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
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110
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Fang H, Jing H, Ge H, Brothers PJ, Fu X, Ye S. The Mechanism of E–H (E = N, O) Bond Activation by a Germanium Corrole Complex: A Combined Experimental and Computational Study. J Am Chem Soc 2015; 137:7122-7. [DOI: 10.1021/jacs.5b01121] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huayi Fang
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering, Peking University, Beijing 100871, China
| | - Huize Jing
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering, Peking University, Beijing 100871, China
| | - Haonan Ge
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering, Peking University, Beijing 100871, China
| | - Penelope J. Brothers
- School
of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1042, New Zealand
| | - Xuefeng Fu
- Beijing
National Laboratory for Molecular Sciences, College of Chemistry and
Molecular Engineering, Peking University, Beijing 100871, China
| | - Shengfa Ye
- Max-Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, D-45470 Mülheim an der Ruhr, Germany
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111
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Gao R, Cao D, Guan Y, Yan D. Flexible self-supporting nanofibers thin films showing reversible photochromic fluorescence. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9904-9910. [PMID: 25897557 DOI: 10.1021/acsami.5b01996] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Highly sensitive stimuli-responsive fluorescent films play an important role in smart sensors and readable optical devices. However, systems involving light-driven fluorescence changes are still limited compared with photochromic materials that simply change color upon photostimulation. Herein, by incorporation of stilbene-based molecules into a poly(vinyl alcohol) host, we have developed new flexible self-supporting nanofiber films that exhibited fast and obvious photochromic fluorescence (PCF). The reversible transfer between two fluorescent states can be easily recycled. Fluorescence microscopy and atomic force microscopy images supplied in situ evidence of changes in fluorescence and surface morphology, respectively. Density functional theoretical calculations showed that the PCF can be attributed to photoisomerization of the stilbene-based molecules. Therefore, based on the combination of experimental and theoretical studies, this work not only supplies new stilbene-based systems with light-induced fluorescence change, but also gives detailed understanding on the photoisomerization and PCF processes of the nanofibers systems. We anticipate that these PCF films can be applied in erasable memory devices and antiforgery materials, and that our strategy may be extended to other systems to fabricate multistimuli-responsive fluorescent materials.
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Affiliation(s)
- Rui Gao
- †State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Ding Cao
- †State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Yan Guan
- §College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Dongpeng Yan
- †State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
- ‡Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
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112
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Calmus L, Corbu A, Cossy J. 2H-Chromenes Generated by an Iron(III) Complex-Catalyzed Allylic Cyclization. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500058] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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113
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Affiliation(s)
- Nilanjana Majumdar
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
- Institute of Microbial Chemistry, Tokyo, 3-14-23 Kamiosaki,
Shinagawa-ku, Tokyo 141-0021, Japan
| | - Nanda D. Paul
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Sutanuva Mandal
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - William D. Wulff
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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114
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Morsing TJ, MacMillan SN, Uebler JWH, Brock-Nannestad T, Bendix J, Lancaster KM. Stabilizing Coordinated Radicals via Metal–Ligand Covalency: A Structural, Spectroscopic, and Theoretical Investigation of Group 9 Tris(dithiolene) Complexes. Inorg Chem 2015; 54:3660-9. [DOI: 10.1021/acs.inorgchem.5b00289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thorbjørn J. Morsing
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
- Department of Chemistry, University of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Samantha N. MacMillan
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Jacob W. H. Uebler
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Theis Brock-Nannestad
- Department of Chemistry, University of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Jesper Bendix
- Department of Chemistry, University of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Kyle M. Lancaster
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
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115
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Amar M, Bar S, Iron MA, Toledo H, Tumanskii B, Shimon LJ, Botoshansky M, Fridman N, Szpilman AM. Design concept for α-hydrogen-substituted nitroxides. Nat Commun 2015; 6:6070. [DOI: 10.1038/ncomms7070] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 12/09/2014] [Indexed: 12/12/2022] Open
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116
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Casanova N, Seoane A, Mascareñas JL, Gulías M. Rhodium-Catalyzed (5+1) Annulations Between 2-Alkenylphenols and Allenes: A Practical Entry to 2,2-Disubstituted 2H-Chromenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410350] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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117
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Casanova N, Seoane A, Mascareñas JL, Gulías M. Rhodium-catalyzed (5+1) annulations between 2-alkenylphenols and allenes: a practical entry to 2,2-disubstituted 2H-chromenes. Angew Chem Int Ed Engl 2015; 54:2374-7. [PMID: 25580565 DOI: 10.1002/anie.201410350] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 11/20/2014] [Indexed: 01/01/2023]
Abstract
Readily available alkenylphenols react with allenes under rhodium catalysis to provide valuable 2,2-disubstituted 2H-chromenes. The whole process, which involves the cleavage of one C-H bond of the alkenyl moiety and the participation of the allene as a one-carbon cycloaddition partner, can be considered a simple, versatile, and atom-economical (5+1) heteroannulation. The reaction tolerates a broad range of substituents both in the alkenylphenol and in the allene, and most probably proceeds through a mechanism involving a rhodium-catalyzed C-C coupling followed by two sequential pericyclic processes.
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Affiliation(s)
- Noelia Casanova
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica 15782. Universidade de Santiago de Compostela (Spain)
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118
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Tang Z, Mandal S, Paul ND, Lutz M, Li P, van der Vlugt JI, de Bruin B. Rhodium catalysed conversion of carbenes into ketenes and ketene imines using PNN pincer complexes. Org Chem Front 2015. [DOI: 10.1039/c5qo00287g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PNN pincer-type rhodium complexes catalyze ketene and ketene imine synthesis, using CO or an isocyanide and a carbene precursor.
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Affiliation(s)
- Z. Tang
- Supramolecular
- Homogeneous & Bio-inspired Catalysis
- van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
| | - S. Mandal
- Supramolecular
- Homogeneous & Bio-inspired Catalysis
- van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
| | - N. D. Paul
- Supramolecular
- Homogeneous & Bio-inspired Catalysis
- van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
| | - M. Lutz
- Crystal and Structural Chemistry
- Bijvoet Center for Biomolecular Research
- Utrecht University
- Utrecht
- The Netherlands
| | - P. Li
- Supramolecular
- Homogeneous & Bio-inspired Catalysis
- van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
| | - J. I. van der Vlugt
- Supramolecular
- Homogeneous & Bio-inspired Catalysis
- van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
| | - B. de Bruin
- Supramolecular
- Homogeneous & Bio-inspired Catalysis
- van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
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119
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120
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Liu TX, Ma J, Chao D, Zhang P, Liu Q, Shi L, Zhang Z, Zhang G. AgNO2-mediated cleavage of the N–N bond of sulfonylhydrazones and oxygen transfer: access to fulleroisoxazolines via radical cyclization with [60]fullerene. Chem Commun (Camb) 2015; 51:12775-8. [DOI: 10.1039/c5cc04934b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example involving cleavage of the N–N bond of sulfonylhydrazones is presented, and a new methodology for the synthesis of fulleroisoxazolines is developed.
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Affiliation(s)
- Tong-Xin Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Jinliang Ma
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Di Chao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Pengling Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Qingfeng Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Lei Shi
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Zhiguo Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
| | - Guisheng Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Henan Normal University
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121
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Zhang J, Jiang J, Xu D, Luo Q, Wang H, Chen J, Li H, Wang Y, Wan X. Interception of Cobalt-Based Carbene Radicals with α-Aminoalkyl Radicals: A Tandem Reaction for the Construction of β-Ester-γ-amino Ketones. Angew Chem Int Ed Engl 2014; 54:1231-5. [DOI: 10.1002/anie.201408874] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Indexed: 12/22/2022]
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122
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Zhang J, Jiang J, Xu D, Luo Q, Wang H, Chen J, Li H, Wang Y, Wan X. Interception of Cobalt-Based Carbene Radicals with α-Aminoalkyl Radicals: A Tandem Reaction for the Construction of β-Ester-γ-amino Ketones. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408874] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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123
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Zhou PX, Ye YY, Zhao LB, Hou JY, Kang X, Chen DQ, Tang Q, Zhang JY, Huang QX, Zheng L, Ma JW, Xu PF, Liang YM. UsingN-Tosylhydrazone as a Double Nucleophile in the Palladium-Catalyzed Cross-Coupling Reaction To Synthesize Allylic Sulfones. Chemistry 2014; 20:16093-6. [DOI: 10.1002/chem.201405172] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Indexed: 11/10/2022]
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124
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Liu Z, Liao P, Bi X. Lewis and Brønsted Acid Cocatalyzed Reductive Deoxyallenylation of Propargylic Alcohols with 2-Nitrobenzenesulfonylhydrazide. Chemistry 2014; 20:17277-81. [DOI: 10.1002/chem.201404692] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Indexed: 11/10/2022]
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125
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Zhang F, Zhang J, Zhang Y, Hong J, Zhou X. Rare-Earth-Metal-Catalyzed Addition of Terminal Monoalkynes and Dialkynes with Aryl-Substituted Symmetrical or Unsymmetrical Carbodiimides. Organometallics 2014. [DOI: 10.1021/om5008665] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Fangjun Zhang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
| | - Jie Zhang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
| | - Yin Zhang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
| | - Jianquan Hong
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
| | - Xigeng Zhou
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
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126
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Xia Y, Xia Y, Zhang Y, Wang J. Palladium-catalyzed coupling of N-tosylhydrazones and β-bromostyrene derivatives: new approach to 2H-chromenes. Org Biomol Chem 2014; 12:9333-6. [DOI: 10.1039/c4ob01979b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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127
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Rhodium(III)-Catalyzed Transannulation of Cyclopropenes withN-Phenoxyacetamides through CH Activation. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408555] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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128
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Zhang H, Wang K, Wang B, Yi H, Hu F, Li C, Zhang Y, Wang J. Rhodium(III)-catalyzed transannulation of cyclopropenes with N-phenoxyacetamides through C-H activation. Angew Chem Int Ed Engl 2014; 53:13234-8. [PMID: 25267691 DOI: 10.1002/anie.201408555] [Citation(s) in RCA: 178] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Indexed: 01/14/2023]
Abstract
An efficient rhodium(III)-catalyzed synthesis of 2H-chromene from N-phenoxyacetamides and cyclopropenes has been developed. The reaction represents the first example of using cyclopropenes as a three-carbon unit in rhodium(III)-catalyzed C(sp(2))-H activations.
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Affiliation(s)
- Hang Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871 (China)
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129
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Roy R, Rakshit S, Bhowmik T, Khan S, Ghatak A, Bhar S. Substituted 3-E-Styryl-2H-chromenes and 3-E-Styryl-2H-thiochromenes: Synthesis, Photophysical Studies, Anticancer Activity, and Exploration to Tricyclic Benzopyran Skeleton. J Org Chem 2014; 79:6603-14. [DOI: 10.1021/jo5011125] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rimi Roy
- Department
of Chemistry, Organic Chemistry Section, Jadavpur University, Kolkata 700 032, India
| | - Soumyadipta Rakshit
- Department
of Chemistry, Physical Chemistry Section, Jadavpur University, Kolkata 700 032, India
| | - Tanmoy Bhowmik
- Laboratory of Toxinology & Experimental Pharmacodynamics, Department of Physiology, University College of Science, University of Calcutta, Kolkata 700 009, India
| | - Sagar Khan
- Department
of Chemistry, Organic Chemistry Section, Jadavpur University, Kolkata 700 032, India
| | - Avishek Ghatak
- Department
of Chemistry, Organic Chemistry Section, Jadavpur University, Kolkata 700 032, India
| | - Sanjay Bhar
- Department
of Chemistry, Organic Chemistry Section, Jadavpur University, Kolkata 700 032, India
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130
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Siyang HX, Wu XR, Ji XY, Wu XY, Liu PN. A copper(ii) perchlorate-promoted tandem reaction of internal alkynol and salicyl N-tosylhydrazone: direct access to isochromeno[3,4-b]chromene. Chem Commun (Camb) 2014; 50:8514-7. [DOI: 10.1039/c4cc02862g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper(ii) perchlorate-promoted tandem reaction of internal alkynol and salicyl N-tosylhydrazone provides a novel, concise method for constructing isochromeno[3,4-b]chromene in 35–94% yields.
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Affiliation(s)
- Hai Xiao Siyang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Lab for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237, China
| | - Xu Rui Wu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Lab for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237, China
| | - Xiao Yue Ji
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Lab for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237, China
| | - Xin Yan Wu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Lab for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237, China
| | - Pei Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Lab for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237, China
| |
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