1
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Ho A, Pounder A, Valluru K, Chen LD, Tam W. Iridium-catalyzed hydroacylation reactions of C1-substituted oxabenzonorbornadienes with salicylaldehyde: an experimental and computational study. Beilstein J Org Chem 2022; 18:251-261. [PMID: 35330776 PMCID: PMC8919423 DOI: 10.3762/bjoc.18.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/16/2022] [Indexed: 11/23/2022] Open
Abstract
An experimental and theoretical investigation on the iridium-catalyzed hydroacylation of C1-substituted oxabenzonorbornadienes with salicylaldehyde is reported. Utilizing commercially available [Ir(COD)Cl]2 in the presence of 5 M KOH in dioxane at 65 °C, provided a variety of hydroacylated bicyclic adducts in up to a 95% yield with complete stereo- and regioselectivity. The mechanism and origins of selectivity in the iridium-catalyzed hydroacylation reaction has been examined at the M06/Def2TZVP level of theory. The catalytic cycle consists of three key steps including oxidative addition into the aldehyde C–H bond, insertion of the olefin into the iridium hydride, and C–C bond-forming reductive elimination. Computational results indicate the origin of regioselectivity is involved in the reductive elimination step.
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Affiliation(s)
- Angel Ho
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Krish Valluru
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Leanne D Chen
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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2
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Pounder A, Tam W, Chen LD. The Mechanism and Origin of Enantioselectivity in the Rhodium-Catalyzed Asymmetric Ring-Opening Reactions of Oxabicyclic Alkenes with Organoboronic Acids: A DFT Investigation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Leanne D. Chen
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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3
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Pounder A, Ho A, Macleod M, Tam W. Chemistry of Unsymmetrical C1-Substituted Oxabenzonorbornadienes. Curr Org Synth 2021; 18:446-474. [PMID: 33402089 DOI: 10.2174/1570179417666210105121115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/23/2020] [Accepted: 11/30/2020] [Indexed: 11/22/2022]
Abstract
Oxabenzonorbornadiene (OBD) is a useful synthetic intermediate, which can be readily activated by transition metal complexes with great face selectivity due to its dual-faced nature and intrinsic angle strain on the alkene. To date, the understanding of transition-metal catalyzed reactions of OBD itself has burgeoned; however, this has not been the case for unsymmetrical OBDs. Throughout the development of these reactions, the nature of C1-substituent has proven to have a profound effect on both the reactivity and selectivity of the outcome of the reaction. Upon substitution, different modes of reactivity arise, contributing to the possibility of multiple stereo-, regio-, and in extreme cases, constitutional isomers, which can provide unique means of constructing a variety of synthetically useful cyclic frameworks. To maximize selectivity, an understanding of bridgehead substituent effects is crucial. To that end, this review outlines hitherto reported examples of bridgehead substituent effects on the chemistry of unsymmetrical C1-substituted OBDs.
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Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Angel Ho
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Matthew Macleod
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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4
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Koh S, Pounder A, Brown E, Tam W. Intramolecular Nickel-Catalyzed Ring-Opening Reactions of Oxabenzonorbornadienes with C1
-Tethered Aryl Halides: An Improvement of Method. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Samuel Koh
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry; Department of Chemistry; University of Guelph; N1G 2W1 Guelph Ontario Canada
| | - Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry; Department of Chemistry; University of Guelph; N1G 2W1 Guelph Ontario Canada
| | - Elizabeth Brown
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry; Department of Chemistry; University of Guelph; N1G 2W1 Guelph Ontario Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry; Department of Chemistry; University of Guelph; N1G 2W1 Guelph Ontario Canada
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5
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Kumaran S, Saritha R, Gurumurthy P, Parthasarathy K. Synthesis of Fused Spiropyrrolidine Oxindoles Through 1,3-Dipolar Cycloaddition of Azomethine Ylides Prepared from Isatins and α-Amino Acids with Heterobicyclic Alkenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000247] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry; University of Madras; Guindy Campus -600025 Chennai India
| | - Rajendhiran Saritha
- Department of Organic Chemistry; University of Madras; Guindy Campus -600025 Chennai India
| | - Palanivelu Gurumurthy
- Department of Organic Chemistry; University of Madras; Guindy Campus -600025 Chennai India
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6
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Koh S, Pounder A, Brown E, Tam W. Intramolecular Palladium-Catalyzed Ring Opening of Oxabenzonorbornadienes with C 1-Tethered Aryl Halides. Org Lett 2020; 22:3433-3437. [PMID: 32294386 DOI: 10.1021/acs.orglett.0c00900] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The novel intramolecular ring opening of oxabenzonorbornadienes with C1-tethered aryl halides was investigated using palladium catalysts to form fused tetracyclic frameworks. The reaction was generally found to synthesize 1,2-dihydronaphthalen-1-ol products with mild selectivity but was capable of synthesizing dehydrated naphthalene products in excellent yield and selectivity. Substituent effects on oxabenzonorbornadiene and on the iodoarene were explored along with the effects of varying tether length, where an efficient reaction was observed in nearly all cases. A total of 16 examples are reported with yields ranging from 0 to 96%.
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Affiliation(s)
- Samuel Koh
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
| | - Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
| | - Elizabeth Brown
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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7
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Chen D, Yao Y, Yang W, Lin Q, Li H, Wang L, Chen S, Tan Y, Yang D. Palladium-Catalyzed syn-Stereocontrolled Ring Opening of Oxabicyclic Alkenes with Arylsulfonyl Hydrazides. J Org Chem 2019; 84:12481-12489. [PMID: 31512473 DOI: 10.1021/acs.joc.9b01957] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A novel palladium-catalyzed ring-opening reaction of oxabicyclic alkenes with arylsulfonyl hydrazides was first developed. In this work, we provide an efficient one-pot reaction to afford the corresponding cis-2-aryl-1,2-dihydronaphthalen-1-ols and 2-aryl-naphthalenes in moderate to excellent yields (up to 95%) under an open-air condition. Various types of functional groups attached to the substrates were tolerated well in this method. Among them, the cis-1,2-configuration of product 3ag was confirmed by X-ray crystallographic analysis. In addition, a plausible mechanism for ring opening was also proposed.
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Affiliation(s)
- Donghan Chen
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
| | - Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
| | - Huanyong Li
- Analytical and Testing Center , Jinan University , Guangzhou 510632 , People's Republic of China
| | - Lin Wang
- Analytical and Testing Center , Jinan University , Guangzhou 510632 , People's Republic of China
| | - Shuqi Chen
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
| | - Yun Tan
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry , South China Normal University , Guangzhou 510006 , People's Republic of China
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8
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Qin A, Zhu G, Chen Q, Qian H, Ma S. Palladium‐Catalyzed Desulfitative Cross‐Coupling Reaction of Sodium Sulfinates with Propargylic Carbonates. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Anni Qin
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Guirong Zhu
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Qin Chen
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University 220 Handan Lu Shanghai 200433 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 People's Republic of China
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9
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Yao Y, Yang W, Wang C, Gu F, Yang W, Yang D. Radical Addition of Thiols to Oxa(aza)bicyclic Alkenes in Water. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900033] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yongqi Yao
- Key Laboratory of Theoretical Chemistry ofEnvironment Ministry of Education School of Chemistry and EnvironmentSouth China Normal University Guangzhou 510006 People's Republic of China
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry ofEnvironment Ministry of Education School of Chemistry and EnvironmentSouth China Normal University Guangzhou 510006 People's Republic of China
| | - Chaoyang Wang
- Key Laboratory of Theoretical Chemistry ofEnvironment Ministry of Education School of Chemistry and EnvironmentSouth China Normal University Guangzhou 510006 People's Republic of China
| | - Fenglong Gu
- Key Laboratory of Theoretical Chemistry ofEnvironment Ministry of Education School of Chemistry and EnvironmentSouth China Normal University Guangzhou 510006 People's Republic of China
| | - Weitao Yang
- Key Laboratory of Theoretical Chemistry ofEnvironment Ministry of Education School of Chemistry and EnvironmentSouth China Normal University Guangzhou 510006 People's Republic of China
- Department of ChemistryDuke University Box 90346 Durham, North Carolina 27708-0346 United States
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry ofEnvironment Ministry of Education School of Chemistry and EnvironmentSouth China Normal University Guangzhou 510006 People's Republic of China
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10
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Wei J, Liang H, Ni C, Sheng R, Hu J. Transition-Metal-Free Desulfinative Cross-Coupling of Heteroaryl Sulfinates with Grignard Reagents. Org Lett 2019; 21:937-940. [DOI: 10.1021/acs.orglett.8b03918] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Wei
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Huamin Liang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Rong Sheng
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
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11
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Shih F, Choi D, Wu Q, Nam C, Grubbs RB. ipso
‐Arylative Ring‐Opening Polymerization as a Route to Electron‐Deficient Conjugated Polymers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201809610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Feng‐Yang Shih
- Chemistry department Stony Brook University Stony Brook NY 11794 USA
| | - Deokkyu Choi
- Chemistry department Stony Brook University Stony Brook NY 11794 USA
| | - Qin Wu
- Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
| | - Chang‐Yong Nam
- Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
| | - Robert B. Grubbs
- Chemistry department Stony Brook University Stony Brook NY 11794 USA
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12
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Shih FY, Choi D, Wu Q, Nam CY, Grubbs RB. ipso-Arylative Ring-Opening Polymerization as a Route to Electron-Deficient Conjugated Polymers. Angew Chem Int Ed Engl 2019; 58:288-291. [PMID: 30428162 DOI: 10.1002/anie.201809610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/01/2018] [Indexed: 11/09/2022]
Abstract
ipso-Arylative ring-opening polymerization of 2-bromo-8-aryl-8H-indeno[2,1-b]thiophen-8-ol monomers proceeds to Mn up to 9 kg mol-1 with conversion of the monomer diarylcarbinol groups to pendent conjugated aroylphenyl side chains (2-benzoylphenyl or 2-(4-hexylbenzoyl)phenyl), which influence the optical and electronic properties of the resulting polythiophenes. Poly(3-(2-(4-hexylbenzoyl)phenyl)thiophene) was found to have lower frontier orbital energy levels (HOMO/LUMO=-5.9/-4.0 eV) than poly(3-hexylthiophene) owing to the electron-withdrawing ability of the aryl ketone side chains. The electron mobility (ca. 2×10-3 cm2 V-1 s-1 ) for poly(3-(2-(4-hexylbenzoyl)phenyl)thiophene) was found to be significantly higher than the hole mobility (ca. 8×10-6 cm2 V-1 s-1 ), which suggests such polymers are candidates for n-type organic semiconductors. Density functional theory calculations suggest that backbone distortion resulting from side-chain steric interactions could be a key factor influencing charge mobilities.
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Affiliation(s)
- Feng-Yang Shih
- Chemistry department, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Deokkyu Choi
- Chemistry department, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Qin Wu
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Chang-Yong Nam
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Robert B Grubbs
- Chemistry department, Stony Brook University, Stony Brook, NY, 11794, USA
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13
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Yao Y, Yang W, Lin Q, Yang W, Li H, Wang L, Gu F, Yang D. 1,3-Dipolar cycloaddition of nitrones to oxa(aza)bicyclic alkenes. Org Chem Front 2019. [DOI: 10.1039/c9qo00660e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new 1,3-dipolar cycloaddition of oxa(aza)bicyclic alkenes with nitrones has been developed without any catalyst and additive under mild conditions. The proposed concerted mechanism is investigated by DFT calculations of the reaction pathways.
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Affiliation(s)
- Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Weitao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Huanyong Li
- Analytical and Testing Center
- Jinan University
- Guangzhou 510632
- People's Republic of China
| | - Lin Wang
- Analytical and Testing Center
- Jinan University
- Guangzhou 510632
- People's Republic of China
| | - Fenglong Gu
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
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14
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Boutin R, Koh S, Tam W. Recent Advances in Transition Metal-Catalyzed Reactions of Oxabenzonorbornadiene. Curr Org Synth 2019; 16:460-484. [PMID: 31984926 PMCID: PMC7432191 DOI: 10.2174/1570179416666181122094643] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/02/2018] [Accepted: 11/14/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Oxabenzonorbornadiene (OBD) is a useful synthetic intermediate capable of undergoing multiple types of transformations due to three key structural features: a free alkene, a bridged oxygen atom, and a highly strained ring system. Most notably, ring-opening reactions of OBD using transition metal catalysts and nucleophiles produce multiple stereocenters in a single step. The resulting dihydronaphthalene framework is found in many natural products, which have been shown to be biologically active. OBJECTIVE This review will provide an overview of transition metal-catalyzed reactions from the past couple of years including cobalt, copper, iridium, nickel, palladium and rhodium- catalyzed reactions. In addition, the recent derivatization of OBD to cyclopropanated oxabenzonorbornadiene and its reactivity will be discussed. CONCLUSION It can be seen from the review, that the work done on this topic has employed the use of many different transition metal catalysts, with many different nucleophiles, to perform various transformations on the OBD molecule. Additionally, depending on the catalyst and ligand used, the stereo and regioselectivity of the product can be controlled, with proposed mechanisms to support the understanding of such reactions. The use of palladium has also generated a cyclopropanated OBD, with reactivity similar to that of OBD. An additional reactive site exists at the distal cyclopropane carbon, giving rise to three types of ring-opened products.
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Affiliation(s)
- Rebecca Boutin
- Department of Chemistry, University of Guelph, Guelph, OntarioN1E 2W1, Canada
| | - Samuel Koh
- Department of Chemistry, University of Guelph, Guelph, OntarioN1E 2W1, Canada
| | - William Tam
- Department of Chemistry, University of Guelph, Guelph, OntarioN1E 2W1, Canada
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15
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Yang X, Yang W, Yao Y, Deng Y, Yang D. Ir-Catalyzed ring-opening of oxa(aza)benzonorbornadienes with water or alcohols. Org Chem Front 2019. [DOI: 10.1039/c8qo01403e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient Ir-catalyzed ring-opening reaction of oxa(aza)benzonorbornadienes with water was firstly developed, which afforded a mild access to substituted dihydronaphthalene products with excellent yields (up to 99%) within 30 min.
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Affiliation(s)
- Xin Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Yingying Deng
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
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16
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Tran VT, Gurak JA, Yang KS, Engle KM. Activation of diverse carbon-heteroatom and carbon-carbon bonds via palladium(II)-catalysed β-X elimination. Nat Chem 2018; 10:1126-1133. [PMID: 30127512 DOI: 10.1038/s41557-018-0110-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/19/2018] [Indexed: 11/09/2022]
Abstract
Chemists' ability to synthesize structurally complex, high-value organic molecules from simple starting materials is limited by methods to selectively activate and functionalize strong alkyl C(sp3) covalent bonds. Recent activity has focused on the activation of abundant C-O, C-N and C-C bonds via a mechanistic paradigm of oxidative addition of a low-valent, electron-rich transition metal. This approach typically employs nickel(0), rhodium(I), ruthenium(0) and iron catalysts under conditions finely tuned for specific, electronically activated substrates, sometimes assisted by chelating functional groups or ring strain. By adopting a redox-neutral strategy involving palladium(II)-catalysed C-H activation followed by β-heteroatom/carbon elimination, we describe here a catalytic method to activate alkyl C(sp3)-oxygen, nitrogen, carbon, fluorine and sulfur bonds with high regioselectivity. Directed hydrofunctionalization of the resultant palladium(II)-bound alkene leads to formal functional group metathesis. The method is applied to amino acid upgrading with complete regioselectivity and moderate to high retention of enantiomeric excess. Low-strain heterocycles undergo strong-bond activation and substitution, giving ring-opened products.
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Affiliation(s)
- Van T Tran
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - John A Gurak
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Kin S Yang
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA.
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17
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Yang X, Yang W, Yao Y, Deng Y, Zuo X, Yang D. Water-Promoted Ir-Catalyzed Ring-Opening of Oxa(aza)benzonorbornadienes with Fluoroalkylamines. J Org Chem 2018; 83:10097-10106. [DOI: 10.1021/acs.joc.8b01396] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xin Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Yingying Deng
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Xiongjun Zuo
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
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18
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Li H, Sasmal A, Shi X, Soulé JF, Doucet H. Halo-substituted benzenesulfonyls and benzenesulfinates: convenient sources of arenes in metal-catalyzed C–C bond formation reactions for the straightforward access to halo-substituted arenes. Org Biomol Chem 2018; 16:4399-4423. [DOI: 10.1039/c8ob00632f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The use of halo-substituted ArSO2R as an aryl source in metal-catalyzed C–C bond formation reactions presents several advantages, as the reaction often proceeds without cleavage of the C–halo bonds.
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Affiliation(s)
- Haoran Li
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR-UMR 6226
- F-35000 Rennes
| | - Arpan Sasmal
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR-UMR 6226
- F-35000 Rennes
| | - Xinzhe Shi
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR-UMR 6226
- F-35000 Rennes
| | - Jean-François Soulé
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR-UMR 6226
- F-35000 Rennes
| | - Henri Doucet
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR-UMR 6226
- F-35000 Rennes
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19
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Chang S, Sun YB, Zhang XR, Dong LL, Zhu HY, Lai HW, Wang D. Pd-catalyzed Desulfitative reaction of Aryltrifluoroborates with sodium Arenesulfinates in water. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3970] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sheng Chang
- College of Pharmacy; JiLin Medical University; JiLin 132013 JiLin China
| | - Yong Bing Sun
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine; Nanchang 330006 China
| | - Xiu Rong Zhang
- College of Pharmacy; JiLin Medical University; JiLin 132013 JiLin China
| | - Lin Lin Dong
- College of Pharmacy; Yan Bian University; Yan Ji 133002 JiLin PR China
| | - He Yun Zhu
- College of Pharmacy; JiLin Medical University; JiLin 132013 JiLin China
| | - Hong Wei Lai
- College of Pharmacy; JiLin Medical University; JiLin 132013 JiLin China
| | - Dan Wang
- College of Pharmacy; JiLin Medical University; JiLin 132013 JiLin China
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20
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Tozawa H, Kakuda T, Adachi K, Hamura T. Star-Shaped Polycyclic Aromatic Ketones via 3-Fold Cycloadditions of Isobenzofuran Trimer Equivalent. Org Lett 2017; 19:4118-4121. [DOI: 10.1021/acs.orglett.7b01932] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hitoshi Tozawa
- Department of Applied Chemistry
for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Takamasa Kakuda
- Department of Applied Chemistry
for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Kazuhiko Adachi
- Department of Applied Chemistry
for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Toshiyuki Hamura
- Department of Applied Chemistry
for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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21
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Wu R, Yang W, Chen W, Yang D. Platinum-catalyzed syn-stereocontrolled ring-opening of oxabicyclic alkenes with sodium arylsulfinates. Org Chem Front 2017. [DOI: 10.1039/c7qo00420f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A new efficient platinum-catalyzed ring-opening reaction of oxabicyclic alkenes with a wide range of sodium arylsulfinates was developed.
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Affiliation(s)
- Ruihua Wu
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Wenkun Chen
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
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22
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Tang X, Yang K, Zeng L, Liu Q, Chen H. Pd-catalyzed desulfitative arylation for the synthesis of 2,5-diarylated oxazole-4-carboxylates using dioxygen as the terminal oxidant. Org Biomol Chem 2017; 15:8504-8507. [DOI: 10.1039/c7ob01912b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel palladium-catalyzed approach for constructing 2,5-diarylated oxazole-4-carboxylates using sodium arylsulfinates as the aryl source has been demonstrated.
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Affiliation(s)
- Xiaodong Tang
- Guangdong Provincial Key Laboratory of New Drug Screening
- School of Pharmaceutical Sciences
- Southern Medical University
- Baiyun District
- P. R. China
| | - Kai Yang
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou
- P. R. China
| | - Liying Zeng
- School of Traditional Chinese Medicine
- Southern Medical University
- Baiyun District
- P. R. China
| | - Qiang Liu
- School of Traditional Chinese Medicine
- Southern Medical University
- Baiyun District
- P. R. China
| | - Huoji Chen
- School of Traditional Chinese Medicine
- Southern Medical University
- Baiyun District
- P. R. China
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23
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Skillinghaug B, Rydfjord J, Sävmarker J, Larhed M. Microwave Heated Continuous Flow Palladium(II)-Catalyzed Desulfitative Synthesis of Aryl Ketones. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00306] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Bobo Skillinghaug
- Department
of Medicinal Chemistry, Division of Organic Pharmaceutical Chemistry,
Uppsala Biomedical Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
| | - Jonas Rydfjord
- Department
of Medicinal Chemistry, Division of Organic Pharmaceutical Chemistry,
Uppsala Biomedical Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
| | - Jonas Sävmarker
- The
Beijer Laboratory for Drug Discovery, Department of Medicinal Chemistry,
Uppsala Biomedical Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
| | - Mats Larhed
- Department
of Medicinal Chemistry, Science for Life Laboratory, Uppsala Biomedical
Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
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