段新方 - 北京师范大学

研究领域

有机合成化学：杂环化合物的合成，天然产物的全合成，药物的新法合成金属有机化学：过渡金属催化偶联反应，有机金属试剂的制备及反应

近期论文

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Xia, D.; Duan, X. F.* Tandem vinyl radical Minisci-type annulation on pyridines: one pot expeditious access to azaindenones, Chem. Commun., 2021, 57,13570. Xia, D.; Duan, X. F.* Alkylative Dearomatization by Using an Unactivated Aryl Nitro Group as a Leaving Group: Access to Diversified Alkylated Spiro[5.5]trienones, Org. Lett. 2021, 23, 2548. Xia, D.; Duan, X. F.* Iron-Catalyzed Dearomatization of Biaryl Ynones with Aldehydes via Double C?H Functionalization in Eco-Benign Solvents: Highly Atom-Economical Synthesis of Acylated Spiro[5.5]trienones, J. Org. Chem. 2021, 86, 15263. Wei, Y. M.; Ma, X. D.; Wang, L.; Duan, X. F.* Iron-catalyzed stereospecific arylation of enol tosylates using Grignard reagents, Chem. Commun., 2020, 56, 1101. Duan, X. F.* Iron catalyzed stereoselective alkene synthesis: a sustainable pathway Chem. Commun., 2020, 56, 14937 (Feature Article). Wei, Y. M.; Wang, M. F.; Duan, X. F.* Is Fe-catalyzed ortho C?H Arylation of Benzamides Sensitive to Steric Hindrance and Directing Group? Org. Lett. 2019, 21, 6471. Wang, L.; Wei, Y. M.; Zhao, Y.; Duan, X. F.* Unified Protocol for Fe-Based Catalyzed Biaryl Cross-Couplings between Various Aryl Electrophiles and Aryl Grignard Reagents. J. Org. Chem. 2019, 84, 5176. Xu, L. C; Liu, K. M.; Duan, X. F.* Iron-Catalyzed Room Temperature Cross-Couplings of Bromophenols with Aryl Grignard Reagents, Adv. Synth. Catal. 2019, 361, 5421 (Highlighted by Org. Process Res. Dev.). Zhang, R.; Zhao, Y.; Liu, K. M.; Duan, X. F.* Phenolate Enabled General and Selective Fe/Ti Cocatalyzed Biaryl Cross-Couplings between Aryl Halides and Aryl Grignard Reagents, Org. Lett. 2018, 20, 7942 (Highlighted by Synfacts and Org. Process Res. Dev.) Wei, J. Liu, K. M.; Duan, X. F.* Cobalt-Catalyzed Biaryl Couplings via C?F Bond Activation in the Absence of Phosphine or NHC Ligands, J. Org. Chem. 2017, 82, 1291 (Cover Art, Highlighted by Synfacts and Org. Process Res. Dev.). Liu, K. M.; Zhang, R.; Duan, X. F.* Room-temperature cobalt-catalyzed arylation of aromatic acids: overriding the ortho-selectivity via the oxidative assembly of carboxylate and aryl titanate reagents using oxygen, Org. Biomol. Chem., 2016, 14, 1593. Liu, K. M.; Liao, L. Y.; Duan, X. F.* Iron catalyzed oxidative assembly of N-heteroaryl and aryl metal reagents using oxygen as an oxidant, Chem. Commun., 2015, 51, 1124 (Highlighted by Synfacts). Liu, K. M.; Wei, J.; Duan, X. F.* Iron-catalyzed oxidative biaryl cross-couplings via mixed diaryl titanates: significant influence of the order of combining aryl Grignard reagents with titanate, Chem. Commun., 2015, 51, 4655. Liao, L. Y.; Liu, K. M.; Duan, X. F.* Unified Protocol for Cobalt-Catalyzed Oxidative Assembly of Two Aryl Metal Reagents Using Oxygen as an Oxidant, J. Org. Chem. 2015, 80, 9856 (Feature Article). Liao, L. Y.; Kong, X.-R.; Duan, X. F.* Reductive Couplings of 2?Halopyridines without External Ligand: Phosphine-Free Nickel-Catalyzed Synthesis of Symmetrical and Unsymmetrical 2,2′-Bipyridines, J. Org. Chem. 2014, 79, 777. Zhang, S.; Liao, L. Y.; Zhang, F.; Duan, X. F.* Arylation, Alkenylation, and Alkylation of 2?Halopyridine N?Oxides with Grignard Reagents: A Solution to the Problem of C2/C6 Regioselective Functionalization of Pyridine Derivatives, J. Org. Chem. 2013, 78, 2720 (Highlighted by Synfacts). Zeng, J.; Liu, M. K.; Duan, X. F.* Selective Co/Ti Cooperatively Catalyzed Biaryl Couplings of Aryl Halides with Aryl Metal Reagents, Org. Lett. 2013, 15, 5342 (Highlighted by Synfacts). Liu, K. M.; Zhang, F.; Duan, X. F.* 1, 2-Addition of Alkyl Grignard Reagents to the Nitro Group: Simple Access to 2-[Alkyl(hydroxy)amino]pyridine N-Oxides and 2-Alkylaminopyridine N-Oxides, Eur. J. Org. Chem. 2013, 6152. Zhang, F.; Zhang, S.; Duan, X. F.* Substitution of the Nitro Group with Grignard Reagents: Facile Arylation and Alkenylation of Pyridine N?Oxides, Org. Lett. 2012, 14, 5618. Liao, L. Y.; Shen, G.; Zhang, X.; Duan, X. F.* A Practicable Environmentally Benign One-pot Synthesis of 2-Arylbenzofurans at Room Temperature, Green Chem. 2012, 14, 695. Zhang, F.; Duan, X. F.* Facile One-Pot Direct Arylation and Alkylation of Nitropyridine N-Oxides with Grignard Reagents, Org. Lett. 2011, 13, 6102. (Highlighted by Synfacts). Zhang, Z. B.; Lu, Y. Q.; Duan, X. F.* An Efficient Direct Asymmetric Synthesis of 3-Substituted Phthalides, Synthesis, 2011, 3435. Duan, X. F.*; Sheng, G.; Zhang, Z. B. A Concise Synthesis of Natural Benzofuran Neolignans and Analogues, Synthesis, 2010, 2547. Duan, X. F.*; Feng, J. X.; Zhang, Z. B. A Convenient Two-Step Synthesis of 2-Arylbenzofurans, Synthesis, 2010, 515. Duan, X. F.*; Sheng, G.; Zhang, Z. B. Total Synthesis of Ailanthoidol, Egonol and Some Related Analogues, Synthesis, 2010, 1181. Duan, X. F.*; Ma, Z. Q.; Zhang, F.; Zhang, Z. B. Magnesiation of Pyridine N-Oxides via Iodine or Bromine-Magnesium Exchange: A Useful Tool for Functionalizing Pyridine N-Oxides. J. Org. Chem. 2009, 74, 939. Duan, X. F.*; Feng, J. X.; Zi, G. F.; Zhang, Z. B. A Convenient Synthesis of Unsymmetrical Pinacols through Selective Cross-Couplings between Structurally- Similar Aromatic Aldehydes Mediated by Low Valent Titanium, Synthesis, 2009, 277. Duan, X. F.*; Zeng, J.; Zhang, Z. B.; Zi, G. F. Facile Two-step Synthesis of 2-Arylbenzofurans Based on the Selective Cross McMurry Couplings, J. Org. Chem., 2007, 72, 10283. Duan, X. F.*; Zeng, J.; Lü, J. W.; Zhang, Z. B.; A Facile Synthesis of Tetraarylethenes via Cross McMurry Coupling between Diaryl Ketones, Synthesis, 2007, 713. Duan, X. F.*; Zeng, J.; Lü, J. W.; Zhang, Z. B. Insights into the General and Efficient Cross McMurry Reactions between Ketones J. Org. Chem., 2006, 71, 9873.