1
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Guo W, Tantillo DJ. Running Wild through Dirhodium Tetracarboxylate-Catalyzed Combined CH(C)-Functionalization/Cope Rearrangement Landscapes: Does Post-Transition-State Dynamic Mismatching Influence Product Distributions? J Am Chem Soc 2024; 146:7039-7051. [PMID: 38418944 DOI: 10.1021/jacs.4c00382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
A special type of C-H functionalization can be achieved through C-H insertion combined with Cope rearrangement (CHCR) in the presence of dirhodium catalysts. This type of reaction was studied using density functional theory and ab initio molecular dynamics simulations, the results of which pointed to the dynamic origins of low yields observed in some experiments. These studies not only reveal intimate details of the complex reaction network underpinning CHCR reactions but also further cement the generality of the importance of nonstatistical dynamic effects in controlling Rh2L4-promoted reactions.
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Affiliation(s)
- Wentao Guo
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
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2
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Loreto D, Maity B, Morita T, Nakamura H, Merlino A, Ueno T. Cross-Linked Crystals of Dirhodium Tetraacetate/RNase A Adduct Can Be Used as Heterogeneous Catalysts. Inorg Chem 2023; 62:7515-7524. [PMID: 37144589 DOI: 10.1021/acs.inorgchem.3c00852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Due to their unique coordination structure, dirhodium paddlewheel complexes are of interest in several research fields, like medicinal chemistry, catalysis, etc. Previously, these complexes were conjugated to proteins and peptides for developing artificial metalloenzymes as homogeneous catalysts. Fixation of dirhodium complexes into protein crystals is interesting to develop heterogeneous catalysts. Porous solvent channels present in protein crystals can benefit the activity by increasing the probability of substrate collisions at the catalytic Rh binding sites. Toward this goal, the present work describes the use of bovine pancreatic ribonuclease (RNase A) crystals with a pore size of 4 nm (P3221 space group) for fixing [Rh2(OAc)4] and developing a heterogeneous catalyst to perform reactions in an aqueous medium. The structure of the [Rh2(OAc)4]/RNase A adduct was investigated by X-ray crystallography: the metal complex structure remains unperturbed upon protein binding. Using a number of crystal structures, metal complex accumulation over time, within the RNase A crystals, and structures at variable temperatures were evaluated. We also report the large-scale preparation of microcrystals (∼10-20 μm) of the [Rh2(OAc)4]/RNase A adduct and cross-linking reaction with glutaraldehyde. The catalytic olefin cyclopropanation reaction and self-coupling of diazo compounds by these cross-linked [Rh2(OAc)4]/RNase A crystals were demonstrated. The results of this work reveal that these systems can be used as heterogeneous catalysts to promote reactions in aqueous solution. Overall, our findings demonstrate that the dirhodium paddlewheel complexes can be fixed in porous biomolecule crystals, like those of RNase A, to prepare biohybrid materials for catalytic applications.
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Affiliation(s)
- Domenico Loreto
- Department of Chemical Sciences, University of Naples Federico II, Napoli I-80126, Italy
| | - Basudev Maity
- School of Life Science and Technology, Tokyo Institute of Technology, 4259-B55 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Taiki Morita
- School of Life Science and Technology, Tokyo Institute of Technology, 4259-B55 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Hiroyuki Nakamura
- School of Life Science and Technology, Tokyo Institute of Technology, 4259-B55 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Napoli I-80126, Italy
| | - Takafumi Ueno
- School of Life Science and Technology, Tokyo Institute of Technology, 4259-B55 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
- Living Systems Materialogy Research Group, International Research Frontiers Initiative, Tokyo Institute of Technology, Yokohama 226-8501, Japan
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3
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Greenwood NS, Champlin AT, Ellman JA. Catalytic Enantioselective Sulfur Alkylation of Sulfenamides for the Asymmetric Synthesis of Sulfoximines. J Am Chem Soc 2022; 144:17808-17814. [PMID: 36154032 PMCID: PMC9650615 DOI: 10.1021/jacs.2c09158] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sulfoximines are increasingly incorporated in agrochemicals and pharmaceuticals, with the two enantiomers of chiral sulfoximines often having profoundly different binding interactions with biomolecules. Therefore, their application to drug discovery and development requires the challenging preparation of single enantiomers rather than racemic mixtures. Here, we report a general and fundamentally new asymmetric synthesis of sulfoximines. The first S-alkylation of sulfenamides, which are readily accessible sulfur compounds with one carbon and one nitrogen substituent, represents the key step. A broad scope for S-alkylation was achieved by rhodium-catalyzed coupling with diazo compounds under mild conditions. When a chiral rhodium catalyst was utilized with loadings as low as 0.1 mol %, the S-alkylation products were obtained in high yields and with enantiomeric ratios up to 98:2 at the newly generated chiral sulfur center. The S-alkylation products were efficiently converted to a variety of sulfoximines with complete retention of stereochemistry. The utility of this approach was further demonstrated by the asymmetric synthesis of a complex sulfoximine agrochemical.
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Affiliation(s)
| | - Andrew T. Champlin
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, United States
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, United States
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4
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Guo W, Hare SR, Chen SS, Saunders CM, Tantillo DJ. C-H Insertion in Dirhodium Tetracarboxylate-Catalyzed Reactions despite Dynamical Tendencies toward Fragmentation: Implications for Reaction Efficiency and Catalyst Design. J Am Chem Soc 2022; 144:17219-17231. [PMID: 36098581 DOI: 10.1021/jacs.2c07681] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rh-catalyzed C-H insertion reactions to form β-lactones suffer from post-transition state bifurcations, with the same transition states leading to ketones and ketenes via fragmentation in addition to β-lactones. In such a circumstance, traditional transition state theory cannot predict product selectivity, so we employed ab initio molecular dynamics simulations to do so and provide a framework for rationalizing the origins of said selectivity. Weak interactions between the catalyst and substrate were studied using energy decomposition and noncovalent interaction analyses, which unmasked an important role of the 2-bromophenyl substituent that has been used in multiple β-lactone-forming C-H insertion reactions. Small and large catalysts were shown to behave differently, with the latter providing a means of overcoming dynamically preferred fragmentation by lowering the barrier for the recombination of the product fragments in the grip of the large catalyst active site cavity.
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Affiliation(s)
- Wentao Guo
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Stephanie R Hare
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Shu-Sen Chen
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Carla M Saunders
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, California 95616, United States
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5
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Zavala C, Darko A. Effect of Tethered, Axially Coordinated Ligands (TACLs) on Dirhodium(II,II) Catalyzed Cyclopropanation: A Linear Free Energy Relationship Study. J Org Chem 2022; 87:6910-6917. [PMID: 35536597 DOI: 10.1021/acs.joc.2c00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hammett correlation experiments were used to determine the influence of dirhodium(II,II) paddlewheel complexes with tethered, axially coordinated ligands (TACLs) on the selectivity of rhodium carbenoids in competitive cyclopropanation reactions. The results suggest that dirhodium(II,II) paddlewheel complexes with TACLs are less sensitive to changes in electronics and reduce selectivity in cyclopropanation reactions with acceptor-substituted rhodium carbenoids. Also, Hammett plots with aryl diazoacetates resulted in a nonlinear downward curvature, suggesting a change in the rate-limiting step of the carbene transfer reaction.
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Affiliation(s)
- Cristian Zavala
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Ampofo Darko
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
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6
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Bain AI, Chinthapally K, Hunter AC, Sharma I. Dual Catalysis in Rhodium (II) Carbenoid Chemistry. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anae I Bain
- University of Oklahama Norman Campus: The University of Oklahoma Chemistry and Biochemistry UNITED STATES
| | - Kiran Chinthapally
- University of Oklahama Norman Campus: The University of Oklahoma Chemistry and Biochemistry UNITED STATES
| | - Arianne C. Hunter
- University of Oklahama Norman Campus: The University of Oklahoma Chemistry and Biochemistry UNITED STATES
| | - Indrajeet Sharma
- University of Oklahoma Chemistry and Biochemistry Stephenson Life Sciences Research Center101 Stephenson Parkway 73019-5251 Norman UNITED STATES
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7
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Wang L, Perveen S, Ouyang Y, Zhang S, Jiao J, He G, Nie Y, Li P. Well-Defined, Versatile and Recyclable Half-Sandwich Nickelacarborane Catalyst for Selective Carbene-Transfer Reactions. Chemistry 2021; 27:5754-5760. [PMID: 33458881 DOI: 10.1002/chem.202005014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/30/2020] [Indexed: 11/11/2022]
Abstract
Catalytic carbene-transfer reactions constitute a class of highly useful transformations in organic synthesis. Although catalysts based on a range of transition-metals have been reported, the readily accessible nickel(II)-based complexes have been rarely used. Herein, an air-stable nickel(II)-carborane complex is reported as a well-defined, versatile and recyclable catalyst for selective carbene transfer reactions with low catalyst loading under mild conditions. This catalyst is effective for several types of reactions including diastereoselective cyclopropanation, epoxidation, selective X-H insertions (X = C, N, O, S, Si), particularly for the unprotected substrates. This represents a rare example of carborane ligands in base metal catalysis.
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Affiliation(s)
- Linghua Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, P. R. China
| | - Saima Perveen
- Department of Applied Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, P. R. China
| | - Shuai Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, P. R. China
| | - Jiao Jiao
- Department of Applied Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China.,Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Gang He
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, P. R. China
| | - Yong Nie
- Institute for Smart Materials & Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, P. R. China.,Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
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8
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Zhou M, Springborg M. Theoretical study of the mechanism behind the site- and enantio-selectivity of C-H functionalization catalysed by chiral dirhodium catalyst. Phys Chem Chem Phys 2020; 22:9561-9572. [PMID: 32319983 DOI: 10.1039/d0cp00249f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The C-H functionalization is very important for the synthesis of pharmaceuticals and complex natural products. Rhodium carbenoids, obtained when a dirhodium(ii) catalyst containing a crown formed by chiral ligands reacts with diazo compounds with both an electron donating group and an electron withdrawing group, play an important part in controlling site- and enantio-selectivity for functionalization of non-activated C-H bonds. It has earlier been demonstrated that the tertiary C-H bond is more favored to be functionalized inside the crown of the dirhodium catalyst with S-configuration ligands compared with the secondary and primary C-H bonds although the latter possess weaker steric effects. We argue that the higher site- and enantio-selectivity for some types of C-H bond functionalization can be related to intermolecular hydrogen bonding, steric hindrance, and weak interactions when the dirhodium catalyst is interacting with the chiral ligands.
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Affiliation(s)
- Meijuan Zhou
- Physical and Theoretical Chemistry Department, University of Saarland, 66123 Saarbrücken, Germany.
| | - Michael Springborg
- Physical and Theoretical Chemistry Department, University of Saarland, 66123 Saarbrücken, Germany. and Materials Science, Tianjin University, Tianjin 300072, China
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9
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Heinz WR, Junk R, Agirrezabal-Telleria I, Bueken B, Bunzen H, Gölz T, Cokoja M, De Vos D, Fischer RA. Thermal defect engineering of precious group metal–organic frameworks: impact on the catalytic cyclopropanation reaction. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01479f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This work highlights the catalytic cyclopropanation and its characteristics as a novel analytical tool to investigate complex MOF structures.
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Affiliation(s)
- Werner R. Heinz
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Raphael Junk
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- 48013 Bilbao
- Spain
| | - Bart Bueken
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions
- Department of Microbial and Molecular Systems (M2S)
- KU Leuven
- 3001 Leuven
- Belgium
| | - Hana Bunzen
- Chair of Solid State and Materials Chemistry
- Institute of Physics
- University of Augsburg
- D-86159 Augsburg
- Germany
| | - Thorsten Gölz
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Mirza Cokoja
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Dirk De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions
- Department of Microbial and Molecular Systems (M2S)
- KU Leuven
- 3001 Leuven
- Belgium
| | - Roland A. Fischer
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
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10
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Herraiz AG, Suero MG. A transition-metal-free & diazo-free styrene cyclopropanation. Chem Sci 2019; 10:9374-9379. [PMID: 32110302 PMCID: PMC7017872 DOI: 10.1039/c9sc02749a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/17/2019] [Indexed: 12/13/2022] Open
Abstract
An operationally simple and broadly applicable novel cyclopropanation of styrenes using gem-diiodomethyl carbonyl reagents has been developed. Visible-light triggered the photoinduced generation of iodomethyl carbonyl radicals, able to cyclopropanate a wide array of styrenes with excellent chemoselectivity and functional group tolerance. To highlight the utility of our photocyclopropanation, we demonstrated the late-stage functionalization of biomolecule derivatives.
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Affiliation(s)
- Ana G Herraiz
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Av. Països Catalans 16 , Tarragona , 43007 , Spain .
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , Calle Marcel. lí Domingo, 1 , Tarragona , 43007 , Spain
| | - Marcos G Suero
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Av. Països Catalans 16 , Tarragona , 43007 , Spain .
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11
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Wang HX, Wan Q, Wu K, Low KH, Yang C, Zhou CY, Huang JS, Che CM. Ruthenium(II) Porphyrin Quinoid Carbene Complexes: Synthesis, Crystal Structure, and Reactivity toward Carbene Transfer and Hydrogen Atom Transfer Reactions. J Am Chem Soc 2019; 141:9027-9046. [DOI: 10.1021/jacs.9b03357] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hai-Xu Wang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Qingyun Wan
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Kai Wu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Kam-Hung Low
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Cong-Ying Zhou
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
- HKU Shenzhen Institute of Research & Innovation, Shenzhen, China
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12
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Yamada R, Fukuyama T, Yokoshima S. Synthetic Studies of the Daphniphyllum Alkaloids: A Cooperative Reaction of Proximal Functional Groups Forming a Tetracyclic System. Org Lett 2018; 20:4504-4506. [DOI: 10.1021/acs.orglett.8b01800] [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)
- Ryosuke Yamada
- Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Tohru Fukuyama
- Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Satoshi Yokoshima
- Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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13
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Tomilov YV, Menchikov LG, Novikov RA, Ivanova OA, Trushkov IV. Methods for the synthesis of donor-acceptor cyclopropanes. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4787] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Harrold ND, Corcos AR, Hillhouse GL. Synthesis, structures, and catalytic reactivity of bis(N-heterocyclic carbene) supported diphenyldiazomethane and 1-azidoadamantane complexes of nickel. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Hunter AC, Chinthapally K, Sharma I. Rh2(esp)2: An Efficient Catalyst for O-H Insertion Reactions of Carboxylic Acids into Acceptor/Acceptor Diazo Compounds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600064] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Liu H, Wei Y, Cai C. Hypervalent-iodine(iii) oxidation of hydrazones to diazo compounds and one-pot nickel(ii)-catalyzed cyclopropanation. NEW J CHEM 2016. [DOI: 10.1039/c5nj02378e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel and efficient cyclopropanation protocol that can be applicable to general hydrazones and alkenes with broad functionalities.
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Affiliation(s)
- Haixuan Liu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Xiaolingwei 200
- Nanjing 210094
- People's Republic of China
| | - Yunyang Wei
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Xiaolingwei 200
- Nanjing 210094
- People's Republic of China
| | - Chun Cai
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Xiaolingwei 200
- Nanjing 210094
- People's Republic of China
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17
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Albertin G, Antoniutti S, Castro J, Dottorello G. Preparation and reactivity of diazoalkane complexes of ruthenium stabilised by an indenyl ligand. Dalton Trans 2015; 44:9289-303. [PMID: 25913868 DOI: 10.1039/c5dt00755k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Diazoalkane complexes [Ru(η(5)-C9H7)(N2CAr1Ar2)(PPh3)L]BPh4 (1-3) [L = PPh3, P(OMe)3, P(OEt)3; Ar1 = Ar2 = Ph; Ar1 = Ph, Ar2 = p-tolyl; Ar1Ar2 = C12H8 fluorenyl] were prepared by allowing chloro-complexes [RuCl(η(5)-C9H7)(PPh3)L] to react with an excess of diazoalkane in ethanol. Complexes 1-3 reacted with ethylene CH2=CH2 (1 atm) and maleic anhydride [ma, CH=CHCO(O)CO] to afford η(2)-alkene complexes [Ru(η(5)-C9H7)(η(2)-CH2=CH2)(PPh3)L]BPh4 (4, 5) and [Ru(η(5)-C9H7){η(2)-CH=CHCO(O)CO}(PPh3)L]BPh4 (7). Further, complexes 1-3 underwent cycloaddition with acrylonitrile CH2=C(H)CN, giving 1H-pyrazoline derivatives [Ru(η(5)-C9H7){η(1)-N=C(CN)CH2C(Ar1Ar2)NH}(PPh3)L]BPh4 (6). Treatment of diazoalkane complexes 1-3 with acetylene CH[triple bond, length as m-dash]CH under mild conditions (1 atm, room temperature) led to dipolar cycloaddition, affording 3H-pyrazole complexes [Ru(η(5)-C9H7)-{η(1)-N=NC(Ar1Ar2)CH=CH}(PPh3)L]BPh4 (8), whereas reaction with terminal alkynes RC≡CH (R = Ph, p-tolyl, Bu(t)) gave vinylidene derivatives [Ru(η(5)-C9H7){=C=C(H)R}(PPh3)L]BPh4 (9). The latter reacted with nucleophiles such as amines and alcohols to give amino- and alkoxy-carbene derivatives [Ru(η(5)-C9H7){=C(NHPr(n))(CH2Ph)}(PPh3)L]BPh4 (11) and [Ru(η(5)-C9H7){=C(CH3)(OEt)}(PPh3)L]BPh4 (10), respectively. In addition, complexes 9 reacted with phenylhydrazine to afford nitrile derivatives [Ru(η(5)-C9H7)(N[triple bond, length as m-dash]CCH2R)(PPh3)L]BPh4 (12) and phenylamine, whereas the reaction with water led to hydrolysis of the alkyne and formation of carbonyl complexes [Ru(η(5)-C9H7)(CO)(PPh3)L]BPh4 (13). Lastly, treatment of vinylidene complexes with the phosphines PPh3 and P(OMe)3 afforded alkenylphosphonium derivatives [Ru(η(5)-C9H7){C(H)=C(R)PPh3}(PPh3)L]BPh4 (14) and [Ru(η(5)-C9H7){C(R)=C(H)P(OMe)3}(PPh3)L]BPh4 (15), respectively. Compound [Ru(η(5)-C9H7){C(H)=C(H)PPh3}(PPh3)L]BPh4 (16) was also prepared. The complexes were characterised by spectroscopy (IR and NMR) and X-ray crystal structure determinations of [Ru(η(5)-C9H7){N2C(C12H8)}(PPh3){P(OEt)3}]BPh4 (3c), [Ru(η(5)-C9H7){=C=C(H)Ph}(PPh3){P(OEt)3}]BPh4 (9d) and [Ru(η(5)-C9H7){C(H)=C(Ph)PPh3}(PPh3){P(OEt)3}]BPh4 (14d).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Dorsoduro 2137, 30123 Venezia, Italy.
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18
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Wang W, Wang GC. Computational study on the mechanism and enantioselectivity of Rh2(S-PTAD)4 catalyzed asymmetric [4+3] cycloaddition between vinylcarbenoids and dienes. RSC Adv 2015. [DOI: 10.1039/c5ra14815d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
In this paper, the mechanism of asymmetric [4+3] cycloaddition between a vinylcarbenoid and a diene to form cycloheptadiene has been studied using a two-layer ONIOM methodology consisting of density functional theory and semiempirical PM6.
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Affiliation(s)
- Wan Wang
- Department of Chemistry
- Tianjin Key Lab of Metal and Molecule-based Material Chemistry and Synergetic Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- P. R. China
| | - Gui-Chang Wang
- Department of Chemistry
- Tianjin Key Lab of Metal and Molecule-based Material Chemistry and Synergetic Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- P. R. China
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19
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Abstract
![]()
1,1-Divinyl-2-phenylcyclopropanes
are entry points to a rich area
of rearrangement chemistry. With N,N-diallyl amide
substrates, tandem radical cyclizations can be initiated at room temperature.
Warming provides products of pure thermal rearrangements with acids,
ester, and amides. These isomerizations give vinylcyclopentenes resulting
from divinylcyclopropane rearrangements and more deeply rearranged
tricyclic spirolactams resulting from aromatic Cope rearrangements
followed by ene reactions. Conversion of the carbonyl group to an
alcohol or ether opens retro-ene pathways followed by either tautomerization
or Claisen rearrangement.
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Affiliation(s)
- E Ben Hay
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
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20
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Rathore KS, Katukojvala S. Rh(II) acetate catalyzed cyclopropanation of styrenes with enaldiazo esters: diastereoselective synthesis of enal-cyclopropanes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Yang X, Xu P, Xue Y. Mechanism and regioselectivity of the cycloaddition between nitrone and dirhodium vinylcarbene catalyzed by Rh2(O2CH)4: a computational study. Theor Chem Acc 2014. [DOI: 10.1007/s00214-014-1549-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Alford JS, Davies HML. Mild Aminoacylation of Indoles and Pyrroles through a Three-Component Reaction with Ynol Ethers and Sulfonyl Azides. J Am Chem Soc 2014; 136:10266-9. [DOI: 10.1021/ja5058967] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Joshua S. Alford
- Department
of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Huw M. L. Davies
- Department
of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
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23
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Kornecki KP, Berry JF, Powers DC, Ritter T. MetalMetal Bond-Containing Complexes as Catalysts for CH Functionalization. PROGRESS IN INORGANIC CHEMISTRY 2014. [DOI: 10.1002/9781118792797.ch04] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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25
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Parr BT, Davies HML. Rhodium-catalyzed tandem cyclopropanation/Cope rearrangement of 4-alkenyl-1-sulfonyl-1,2,3-triazoles with dienes. Angew Chem Int Ed Engl 2013; 52:10044-7. [PMID: 23913819 DOI: 10.1002/anie.201304310] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Indexed: 11/09/2022]
Abstract
Take your pick… A practical method for the synthesis of structurally diverse rhodium vinylcarbenes from stable 1-sulfonyl-1,2,3-triazole precursors has been developed. The reaction is general for a broad range of 4-alkenyl triazoles and dienes, enabling the stereoselective synthesis of a variety of polycyclic imines, which are readily converted into amines or aldehydes in a one-pot process.
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Affiliation(s)
- Brendan T Parr
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA) http://www.chemistry.emory.edu/faculty/davies/Home.html
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26
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Parr BT, Davies HML. Rhodium-Catalyzed Tandem Cyclopropanation/Cope Rearrangement of 4-Alkenyl-1-sulfonyl-1,2,3-triazoles with Dienes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304310] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Chepiga KM, Qin C, Alford JS, Chennamadhavuni S, Gregg TM, Olson JP, Davies HML. Guide to Enantioselective Dirhodium(II)-Catalyzed Cyclopropanation with Aryldiazoacetates. Tetrahedron 2013; 69. [PMID: 24273349 DOI: 10.1016/j.tet.2013.04.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Catalytic enantioselective methods for the generation of cyclopropanes has been of longstanding pharmaceutical interest. Chiral dirhodium(II) catalysts prove to be an effective means for the generation of diverse cyclopropane libraries. Rh2(R-DOSP)4 is generaally the most effective catalyst for asymmetric intermolecular cyclopropanation of methyl aryldiazoacetates with styrene. Rh2(S-PTAD)4 provides high levels of enantioinduction with ortho-substituted aryldiazoacetates. The less-established Rh2(R-BNP)4 plays a complementary role to Rh2(R-DOSP)4 and Rh2(S-PTAD)4 in catalyzing highly enantioselective cyclopropanation of 3- methoxy-substituted aryldiazoacetates. Substitution on the styrene has only moderate influence on the asymmetric induction of the cyclopropanation.
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Affiliation(s)
- Kathryn M Chepiga
- Department of Chemistry, Emory University, (404)727-6839, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
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28
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Ann Hughes R, Tølløfsrud M, Bryant N, Kaboli M, Hennum M, Bonge-Hansen T. Diastereoselective synthesis of cyclopropyl melatonin analogues. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Alford JS, Davies HML. Expanding the Scope of Donor/Acceptor Carbenes to N-Phthalimido Donor Groups: Diastereoselective Synthesis of 1-Cyclopropane α-Amino Acids. Org Lett 2012; 14:6020-3. [DOI: 10.1021/ol3029127] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Joshua S. Alford
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
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30
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López LA, Barrio P, Borge J. Cationic Copper(I) Carbene Complexes: Synthesis and Structures of a Tricoordinate Copper(I) Carbene Water Complex and a Dicoordinate Carbene Complex. Organometallics 2012. [DOI: 10.1021/om300925w] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Luis A. López
- Instituto Universitario de Quı́mica
Organometálica
“Enrique Moles”, Departamento de Quı́mica
Orgánica e Inorgánica, and ‡Departamento de Quı́mica
Fı́sica y Analítica, Universidad de Oviedo, Julián Clavería
8, 33007-Oviedo, Spain
| | - Pablo Barrio
- Instituto Universitario de Quı́mica
Organometálica
“Enrique Moles”, Departamento de Quı́mica
Orgánica e Inorgánica, and ‡Departamento de Quı́mica
Fı́sica y Analítica, Universidad de Oviedo, Julián Clavería
8, 33007-Oviedo, Spain
| | - Javier Borge
- Instituto Universitario de Quı́mica
Organometálica
“Enrique Moles”, Departamento de Quı́mica
Orgánica e Inorgánica, and ‡Departamento de Quı́mica
Fı́sica y Analítica, Universidad de Oviedo, Julián Clavería
8, 33007-Oviedo, Spain
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31
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Valette D, Lian Y, Haydek JP, Hardcastle KI, Davies HML. Alkynoate synthesis through the vinylogous reactivity of rhodium(II) carbenoids. Angew Chem Int Ed Engl 2012; 51:8636-9. [PMID: 22807172 PMCID: PMC3580044 DOI: 10.1002/anie.201204047] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 06/14/2012] [Indexed: 11/06/2022]
Abstract
Siloxy group migration: A rhodium(II) carbenoid approach has been developed for the synthesis of alkynoates. This transformation combines the addition of enol ethers at the vinylogous position of β-siloxy-substituted vinyldiazo derivatives with a siloxy group migration to give the products as single diastereomers.
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Affiliation(s)
- Damien Valette
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA)
| | - Yajing Lian
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA)
| | - John P. Haydek
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA)
| | - Kenneth I. Hardcastle
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA)
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA)
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32
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Valette D, Lian Y, Haydek JP, Hardcastle KI, Davies HML. Alkynoate Synthesis through the Vinylogous Reactivity of Rhodium(II) Carbenoids. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204047] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Damien Valette
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA) http://www.chemistry.emory.edu/
| | - Yajing Lian
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA) http://www.chemistry.emory.edu/
| | - John P. Haydek
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA) http://www.chemistry.emory.edu/
| | - Kenneth I. Hardcastle
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA) http://www.chemistry.emory.edu/
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322 (USA) http://www.chemistry.emory.edu/
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33
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Anding BJ, Ellern A, Woo LK. Olefin Cyclopropanation Catalyzed by Iridium(III) Porphyrin Complexes. Organometallics 2012. [DOI: 10.1021/om300135f] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bernie J. Anding
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111,
United States
| | - Arkady Ellern
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111,
United States
| | - L. Keith Woo
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111,
United States
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34
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Microwave-assisted chemoselective reaction: a divergent synthesis of pyrazolopyridine derivatives with different substituted patterns. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.081] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Nomura M, Fujita-Takayama C, Sugiyama T, Kajitani M. Diverse reactivities of aromaticity–unsaturation coexisted metalladithiolene rings. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Intrieri D, Caselli A, Gallo E. Cyclopropanation Reactions Mediated by Group 9 Metal Porphyrin Complexes. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100664] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniela Intrieri
- Department of Inorganic, Metallorganic and Analytical Chemistry “L. Malatesta”, University of Milan and ISTM‐CNR, via Venezian 21, 20136 Milan, Italy, Fax: +39‐250314405
| | - Alessandro Caselli
- Department of Inorganic, Metallorganic and Analytical Chemistry “L. Malatesta”, University of Milan and ISTM‐CNR, via Venezian 21, 20136 Milan, Italy, Fax: +39‐250314405
| | - Emma Gallo
- Department of Inorganic, Metallorganic and Analytical Chemistry “L. Malatesta”, University of Milan and ISTM‐CNR, via Venezian 21, 20136 Milan, Italy, Fax: +39‐250314405
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37
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Goto T, Takeda K, Anada M, Ando K, Hashimoto S. Enantio- and diastereoselective cyclopropanation with tert-butyl α-diazopropionate catalyzed by dirhodium(II) tetrakis[N-tetrabromophthaloyl-(S)-tert-leucinate]. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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39
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Pérez-Galán P, Herrero-Gómez E, Hog DT, Martin NJA, Maseras F, Echavarren AM. Mechanism of the gold-catalyzed cyclopropanation of alkenes with 1,6-enynes. Chem Sci 2011. [DOI: 10.1039/c0sc00335b] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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40
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Gregg TM, Algera RF, Frost JR, Hassan F, Stewart RJ. Substituent effects on rates of rhodium-catalyzed allene cyclopropanation. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.143] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Slattery CN, Ford A, Maguire AR. Catalytic asymmetric C–H insertion reactions of α-diazocarbonyl compounds. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.05.073] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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Ghanem A, Gardiner MG, Williamson RM, Müller P. First X-ray structure of a N-naphthaloyl-tethered chiral dirhodium(II) complex: structural basis for tether substitution improving asymmetric control in olefin cyclopropanation. Chemistry 2010; 16:3291-5. [PMID: 20175164 DOI: 10.1002/chem.200903231] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ashraf Ghanem
- Australian Centre for Research on Separation Science, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia.
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43
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Moriarty RM, Tyagi S, Kinch M. Metal-free intramolecular cyclopropanation of alkenes through iodonium ylide methodology. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.05.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Pelphrey P, Hansen J, Davies HML. Solvent-free catalytic enantioselective C–C bond forming reactions with very high catalyst turnover numbers. Chem Sci 2010. [DOI: 10.1039/c0sc00109k] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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45
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Gregg TM, Farrugia MK, Frost JR. Rhodium-Mediated Enantioselective Cyclopropanation of Allenes. Org Lett 2009; 11:4434-6. [DOI: 10.1021/ol9017968] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Timothy M. Gregg
- Department of Chemistry and Biochemistry, Canisius College, Buffalo, New York 14208
| | - Mark K. Farrugia
- Department of Chemistry and Biochemistry, Canisius College, Buffalo, New York 14208
| | - John R. Frost
- Department of Chemistry and Biochemistry, Canisius College, Buffalo, New York 14208
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46
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Hansen J, Li B, Dikarev E, Autschbach J, Davies HML. Combined Experimental and Computational Studies of Heterobimetallic Bi−Rh Paddlewheel Carboxylates as Catalysts for Metal Carbenoid Transformations. J Org Chem 2009; 74:6564-71. [DOI: 10.1021/jo900998s] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jo̷rn Hansen
- Department of Chemistry, Emory University, 440 Atwood Hall, 1515 Dickey Drive, Atlanta, Georgia 30322
| | - Bo Li
- Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222
| | - Evgeny Dikarev
- Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 440 Atwood Hall, 1515 Dickey Drive, Atlanta, Georgia 30322
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47
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Hansen J, Autschbach J, Davies HML. Computational Study on the Selectivity of Donor/Acceptor-Substituted Rhodium Carbenoids. J Org Chem 2009; 74:6555-63. [DOI: 10.1021/jo9009968] [Citation(s) in RCA: 155] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jørn Hansen
- Department of Chemistry, Emory University, 440 Atwood Hall, 1515 Dickey Drive, Atlanta, Georgia 30322
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 440 Atwood Hall, 1515 Dickey Drive, Atlanta, Georgia 30322
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48
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Ventura DL, Li Z, Coleman MG, Davies HM. Intermolecular C–H functionalization versus cyclopropanation of electron rich 1,1-disubstituted and trisubstituted alkenes. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.059] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Denton JR, Davies HML. Enantioselective reactions of donor/acceptor carbenoids derived from alpha-aryl-alpha-diazoketones. Org Lett 2009; 11:787-90. [PMID: 19146454 DOI: 10.1021/ol802614j] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of a variety of alpha-aryl-alpha-diazo ketones with activated olefins, catalyzed by the adamantyl glycine-derived dirhodium complex Rh(2)(S-PTAD)(4), generates cyclopropyl ketones with high diastereoselectivity (up to >95:5 dr) and enantioselectivity (up to 98% ee). Intermolecular C-H functionalization of 1,4-cyclohexadiene by means of carbenoid-induced C-H insertion was also possible with this type of carbenoid.
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Affiliation(s)
- Justin R Denton
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, USA
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50
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Hao WJ, Jiang B, Tu SJ, Wu SS, Han ZG, Cao XD, Zhang XH, Yan S, Shi F. Microwave-Assisted Combinatorial Synthesis of New 3-Pyrimidin-5-ylpropanamides via a Solvent-Dependent Chemoselective Reaction. ACTA ACUST UNITED AC 2009; 11:310-4. [DOI: 10.1021/cc800175n] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-Juan Hao
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Bo Jiang
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Shan-Shan Wu
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Zheng-Guo Han
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Xu-Dong Cao
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Xiao-Hong Zhang
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Shu Yan
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
| | - Feng Shi
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, P.R. China
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