1
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Dean AC, Randle EH, Lacey AJD, Marczak Giorio GA, Doobary S, Cons BD, Lennox AJJ. Alkene 1,3-Difluorination via Transient Oxonium Intermediates. Angew Chem Int Ed Engl 2024; 63:e202404666. [PMID: 38695434 DOI: 10.1002/anie.202404666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Indexed: 06/21/2024]
Abstract
The 1,3-difunctionalization of unactivated alkenes is an under-explored transformation that leads to moieties that are otherwise challenging to prepare. Herein, we report a hypervalent iodine-mediated 1,3-difluorination of homoallylic (aryl) ethers to give unreported 1,3-difluoro-4-oxy groups with moderate to excellent diastereoselectivity. The transformation proceeds through a different mode of reactivity for 1,3-difunctionalization, in which a regioselective addition of fluoride opens a transiently formed oxonium intermediate to rearrange an alkyl chain. The optimized protocol is scalable and shown to proceed well with a variety of functional groups and substitution on the alkenyl chain, hence providing ready access to this fluorinated, conformationally controlled moiety.
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Affiliation(s)
- Alice C Dean
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
| | - E Harvey Randle
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
| | - Andrew J D Lacey
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
| | | | - Sayad Doobary
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, U.K
| | - Benjamin D Cons
- Astex Pharmaceuticals, 436 Cambridge Science Park, Cambridge, CB4 0QA, U.K
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2
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Zhou J, Zhao Z, Mori S, Yamamoto K, Shibata N. Cross-coupling of organic fluorides with allenes: a silyl-radical-relay pathway for the construction of α-alkynyl-substituted all-carbon quaternary centres. Chem Sci 2024; 15:5113-5122. [PMID: 38577357 PMCID: PMC10988592 DOI: 10.1039/d3sc06617g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 02/19/2024] [Indexed: 04/06/2024] Open
Abstract
Controlling the transformation of versatile and reactive allenes is a considerable challenge. Herein, we report an efficient silylboronate-mediated cross-coupling reaction of organic fluorides with allenes to construct a series of sterically demanding α-ethynyl-containing all-carbon quaternary centers (ACQCs), using catalyst-free silyl-radical-relay reactions to selectively functionalize highly inert C-F bonds in organic fluorides. The key to the success of this transformation lies in the radical rearrangement of an in situ-generated allenyl radical to form a bulky tertiary propargyl radical; however, the transformation does not show efficiency when using the propargyl isomer directly. This unique reaction enables the cross-coupling of a tertiary carbon radical center with a C(sp2)-F bond or a benzylic C(sp3)-F bond. α-Ethynyl-containing ACQCs with (hetero)aromatic substituents and benzyl were efficiently synthesized in a single step using electronically and sterically diverse organic fluorides and allenes. The practical utility of this protocol is showcased by the late-stage functionalization of bioactive molecules and the modification of a liquid crystalline material.
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Affiliation(s)
- Jun Zhou
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Zhengyu Zhao
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Soichiro Mori
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Katsuhiro Yamamoto
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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3
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Sahroni I, Kodama T, Ahmad MS, Nakahara T, Inomata Y, Kida T. Graphene Oxide Membrane Reactor for Electrochemical Deuteration Reactions. NANO LETTERS 2024; 24:3590-3597. [PMID: 38489112 DOI: 10.1021/acs.nanolett.3c04243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
The deuteration of organic molecules is considerably important in organic and medicinal chemistry. An electrochemical membrane reactor using proton-conducting graphene oxide (GO) nanosheets was developed to synthesize valuable deuterium-labeled products via an efficient hydrogen-to-deuterium (H/D) exchange under mild conditions at ambient temperature and atmospheric pressure. Deuterons (D+) formed by the anodic oxidation of heavy water (D2O) at the Pt/C anode permeate through the GO membrane to the Pt/C cathode, where organic molecules with functional groups (C≡C and C═O) are deuterated with adsorbed atomic D species. Deuteration occurs in outstanding yields with high levels of D incorporation. We also achieved the electrodeuteration of a drug molecule, ibuprofen, demonstrating the promising feasibility of the GO membrane reactor in the pharmaceutical industry.
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Affiliation(s)
- Imam Sahroni
- Graduate School of Science and Technology, Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8655, Japan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Sleman, Yogyakarta 55584, Indonesia
| | - Taiga Kodama
- Graduate School of Science and Technology, Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8655, Japan
| | - Muhammad Sohail Ahmad
- Institute of Industrial Nanomaterials (IINa), Kumamoto University, Kumamoto 860-8555, Japan
| | - Takeru Nakahara
- Graduate School of Science and Technology, Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8655, Japan
| | - Yusuke Inomata
- Graduate School of Science and Technology, Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8655, Japan
| | - Tetsuya Kida
- Graduate School of Science and Technology, Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8655, Japan
- Institute of Industrial Nanomaterials (IINa), Kumamoto University, Kumamoto 860-8555, Japan
- International Research Organization for Advanced Science and Technology (IROAST), Kumamoto University, Kumamoto 860-8555, Japan
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4
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Mourya A, Prajapati N. Precision Deuteration in Search of Anticancer Agents: Approaches to Cancer Drug Discovery. Cancer Biother Radiopharm 2024; 39:1-18. [PMID: 37585602 DOI: 10.1089/cbr.2023.0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023] Open
Abstract
Cancer chemotherapy has been shifted from conventional cytotoxic drug therapy to selective and target-specific therapy after the findings about DNA changes and proteins that are responsible for cancer. A large number of newer drugs were discovered as targeted therapy for particular types of neoplastic disease. The initial discovery includes the development of the first in the category, imatinib, a Bcr-Abl tyrosine kinase inhibitor (TKI) for the treatment of chronic myelocytic leukemia in 2001. But the joy did not last for long as the drug developed a point mutation within the ABL1 kinase domain of BCR-ABL1, which subsequently led to the discovery of many other TKIs. Resistance was observed for newer TKIs a few years after their launching, but the use of TKIs in life-threatening cancer therapy is considered as far better compared with the risks of disease because of its target specificity and hence less toxicity. In search of a better anticancer agent, the physiochemical properties of the lead molecule have been modified for its efficacy toward disease and delay in the development of resistance. Deuteration in the drug molecule is one of such modifications that alter the pharmacokinetic properties, generally its metabolism, as compared with its pharmacodynamic effects. Precision deuteration in many anticancer drugs has been carried out to search for better drugs for cancer. In this review, the majority of anticancer drugs and molecules for which deuteration was applied to get better anticancer molecules were discussed. This review will provide a complete guide about the benefits of deuteration in cancer chemotherapy.
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MESH Headings
- Humans
- Drug Resistance, Neoplasm/genetics
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Imatinib Mesylate/therapeutic use
- Protein Kinase Inhibitors/pharmacology
- Protein Kinase Inhibitors/therapeutic use
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Drug Discovery
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Affiliation(s)
- Aman Mourya
- Faculty of Pharmacy, The Maharaja Sayajirao University of Baroda, Vadodara, India
| | - Navnit Prajapati
- Faculty of Pharmacy, The Maharaja Sayajirao University of Baroda, Vadodara, India
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5
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Singh J, Sharma S, Prakasham AP, Rajaraman G, Ghosh P. Accessing Bioactive Hydrazones by the Hydrohydrazination of Terminal Alkynes Catalyzed by Gold(I) Acyclic Aminooxy Carbene Complexes and Their Gold(I) Arylthiolato and Gold(III) Tribromo Derivatives: A Combined Experimental and Computational Study. ACS OMEGA 2023; 8:21042-21073. [PMID: 37323414 PMCID: PMC10268297 DOI: 10.1021/acsomega.3c01925] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/05/2023] [Indexed: 06/17/2023]
Abstract
Hydrohydrazination of terminal alkynes with hydrazides yielding hydrazones 5-14 were successfully catalyzed by a series of gold(I) acyclic aminooxy carbene complexes of the type [{(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)}methylidene]AuCl, where R2 = H, R1 = Me (1b); R2 = H, R1 = Cy (2b); R2 = t-Bu, R1 = Me (3b); R2 = t-Bu, R1 = Cy (4b). The mass spectrometric evidence corroborated the existence of the catalytically active solvent-coordinated [(AAOC)Au(CH3CN)]SbF6 (1-4)A species and the acetylene-bound [(AAOC)Au(HC≡CPhMe)]SbF6 (3B) species of the proposed catalysis cycle. The hydrohydrazination reaction was successfully employed in synthesizing several bioactive hydrazone compounds (15-18) with anticonvulsant properties using a representative precatalyst (2b). The DFT studies favored the 4-ethynyltoluene (HC≡CPhMe) coordination pathway over the p-toluenesulfonyl hydrazide (NH2NHSO2C6H4CH3) coordination pathway, and that proceeded by a crucial intermolecular hydrazide-assisted proton transfer step. The gold(I) complexes (1-4)b were synthesized from the {[(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)]CH}+OTf- (1-4)a by treatment with (Me2S)AuCl in the presence of NaH as a base. The reactivity studies of (1-4)b yielded the gold(III) [{(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)}methylidene]AuBr3 (1-4)c complexes upon reaction with molecular bromine and the gold(I) perfluorophenylthiolato derivatives, [{(4-R2-2,6-t-Bu2-C6H2O)(N(R1)2)}methylidene]AuSC6F5 (1-4)d, upon treatment with C6F5SH.
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6
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Gu JG, Wang CX, Hu GQ, Shen K, Zhang HH. K 2CO 3/18-Crown-6-Catalyzed Selective H/D Exchange of Heteroarenes with Bromide as a Removable Directing Group. Org Lett 2023; 25:3055-3059. [PMID: 37126411 DOI: 10.1021/acs.orglett.3c00883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The K2CO3/18-crown-6-catalyzed H/D exchange of heretoarenes in high atom % deuterium incorporation is disclosed. The use of a weak base as a catalyst leads to excellent site selectivity and broad functional group tolerance. Control experiments indicated that the use of bromide, which enhances the adjacent C-H bond reactivity, as a removable directing group is essential. Moreover, conversion of bromide to other functional groups is also performed to construct other useful deuterated compounds.
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Affiliation(s)
- Jian-Guo Gu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 Puzhu Road, Nanjing 211816, P. R. China
| | - Cai-Xia Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 Puzhu Road, Nanjing 211816, P. R. China
| | - Guang-Qi Hu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 Puzhu Road, Nanjing 211816, P. R. China
| | - Kang Shen
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 Puzhu Road, Nanjing 211816, P. R. China
| | - Hong-Hai Zhang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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7
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Tarrach X, Yang J, Soleiman-Beigi M, Díez-González S. Straightforward and Efficient Deuteration of Terminal Alkynes with Copper Catalysis. Catalysts 2023. [DOI: 10.3390/catal13040648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
The mild and effective preparation of deuterated organic molecules is an active area of research due to their important applications. Herein, we report an air-stable and easy to access copper(I) complex as catalyst for the deuteration of mono-substituted alkynes. Reactions were carried out in technical solvents and in the presence of air, to obtain excellent deuterium incorporation in a range of functionalised alkynes.
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8
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Gange GB, Humphries AL, Smith MD, Peryshkov DV. Activation of Alkynes by a Redox-Active Carboranyl Diphosphine and Formation of Boron-Containing Phosphacycles. Inorg Chem 2022; 61:18568-18573. [DOI: 10.1021/acs.inorgchem.2c02919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gayathri B. Gange
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Amanda L. Humphries
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Mark D. Smith
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Dmitry V. Peryshkov
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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9
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Tortajada A, Hevia E. Perdeuteration of Arenes via Hydrogen Isotope Exchange Catalyzed by the Superbasic Sodium Amide Donor Species NaTMP·PMDETA. J Am Chem Soc 2022; 144:20237-20242. [DOI: 10.1021/jacs.2c09778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andreu Tortajada
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Eva Hevia
- Departement für Chemie, Biochemie und Pharmazie, Universität Bern, Freiestrasse 3, 3012 Bern, Switzerland
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10
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Bai X, Huang L, Zhou P, Xi H, Hu J, Zuo Z, Feng H. Selectivity Controlled Hydroamination of Alkynes to Sulfonyl Fluoride Hubs: Development and Application. J Org Chem 2022; 87:4998-5004. [PMID: 35316042 DOI: 10.1021/acs.joc.1c03082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A hydroamination of unactivated alkynes and lithium bis(fluorosulfonyl)imide (LiN(SO2F)2) is described under mild conditions, affording a single regioisomer of the sulfonyl fluorides. This method features broad functional group compatibility and delivers the target vinyl fluorosulfonimides in good to excellent yields. Moreover, gram-scale hydroamination of terminal and internal alkynes is achieved. Further transformations exploiting the reactivity of the vinyl fluorosulfonimide are subsequently developed for the synthesis of fluorosulfates and diphenyl sulfate.
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Affiliation(s)
- Xueying Bai
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Pengyu Zhou
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Hui Xi
- Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research, Zhengzhou 450001, China
| | - Junduo Hu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Zhicheng Zuo
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.,Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai 201620, China
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11
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12
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Kopf S, Bourriquen F, Li W, Neumann H, Junge K, Beller M. Recent Developments for the Deuterium and Tritium Labeling of Organic Molecules. Chem Rev 2022; 122:6634-6718. [PMID: 35179363 DOI: 10.1021/acs.chemrev.1c00795] [Citation(s) in RCA: 141] [Impact Index Per Article: 70.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Organic compounds labeled with hydrogen isotopes play a crucial role in numerous areas, from materials science to medicinal chemistry. Indeed, while the replacement of hydrogen by deuterium gives rise to improved absorption, distribution, metabolism, and excretion (ADME) properties in drugs and enables the preparation of internal standards for analytical mass spectrometry, the use of tritium-labeled compounds is a key technique all along drug discovery and development in the pharmaceutical industry. For these reasons, the interest in new methodologies for the isotopic enrichment of organic molecules and the extent of their applications are equally rising. In this regard, this Review intends to comprehensively discuss the new developments in this area over the last years (2017-2021). Notably, besides the fundamental hydrogen isotope exchange (HIE) reactions and the use of isotopically labeled analogues of common organic reagents, a plethora of reductive and dehalogenative deuteration techniques and other transformations with isotope incorporation are emerging and are now part of the labeling toolkit.
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Affiliation(s)
- Sara Kopf
- Leibniz-Institut für Katalyse e. V., 18059 Rostock, Germany
| | | | - Wu Li
- Leibniz-Institut für Katalyse e. V., 18059 Rostock, Germany
| | | | - Kathrin Junge
- Leibniz-Institut für Katalyse e. V., 18059 Rostock, Germany
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13
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Li K, Wu K, Lu Y, Guo J, Hu P, Su C. Creating Dynamic Nanospaces in Solution by Cationic Cages as Multirole Catalytic Platform for Unconventional C(sp)−H Activation Beyond Enzyme Mimics. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kang Li
- School of Chemistry South China Normal University Guangzhou 510006 China
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Kai Wu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Yu‐Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Jing Guo
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Peng Hu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Cheng‐Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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14
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Chan MYT, Anwar A, Lockley WJS. Practical approaches to labelling terminal alkynes with deuterium. J Labelled Comp Radiopharm 2022; 65:101-111. [PMID: 35067956 PMCID: PMC9303397 DOI: 10.1002/jlcr.3963] [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: 12/03/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 11/12/2022]
Abstract
Base catalysed exchange with sodium hydroxide, calcium oxide or N,N,N,N‐tetramethylguanidine in deuterium oxide is a viable procedure for the preparation of terminally deuterated alkynes for those alkynes stable to strong base. The use of silver perchlorate as a catalyst is an alternative practical option when labelling alkynes which are sensitive to base or contain functionalities which would lead to labelling elsewhere in the molecule. Labelling with this catalyst takes place smoothly at ambient temperature in a mixture of N,N‐dimethylformamide and deuterium oxide.
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Affiliation(s)
- Melanie Y. T. Chan
- Department of Chemistry, Faculty of Engineering and Physical Sciences University of Surrey Guildford UK
| | - Arbab Anwar
- Department of Chemistry, Faculty of Engineering and Physical Sciences University of Surrey Guildford UK
| | - William J. S. Lockley
- Department of Chemistry, Faculty of Engineering and Physical Sciences University of Surrey Guildford UK
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15
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Kumar GS, Moorthy S, Karmakar H, Singh SK, Panda TK. Neosilyllithium‐Catalyzed Hydroboration of Alkynes and Alkenes in the Presence of Pinacolborane (HBpin). Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gobbilla Sai Kumar
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi-502 285 Sangareddy, Telangana India
| | - Shruti Moorthy
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi-502 285 Sangareddy, Telangana India
| | - Himadri Karmakar
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi-502 285 Sangareddy, Telangana India
| | - Saurabh Kumar Singh
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi-502 285 Sangareddy, Telangana India
| | - Tarun K. Panda
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi-502 285 Sangareddy, Telangana India
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16
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Li K, Wu K, Lu YL, Guo J, Hu P, Su CY. Creating Dynamic Nanospaces in Solution by Cationic Cages as Multirole Catalytic Platform for Unconventional C(sp)-H Activation Beyond Enzyme Mimics. Angew Chem Int Ed Engl 2021; 61:e202114070. [PMID: 34779551 DOI: 10.1002/anie.202114070] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Indexed: 01/10/2023]
Abstract
Herein we demonstrate that, based on the creation of dynamic nanospaces in solution by highly charged positive coordination cage of [Pd6 (RuL3 )8 ]28+ , multirole and multi-way cage-confined catalysis is accomplishable for versatile functions and anomalous reactivities with the aid of the biomimetic cage effect. The high cationic-host charges drive partial deprotonation of 24 imidazole-NHs on cage sphere alike imidazole-residuals in proteins, generating amphoteric heterogeneity in solution to enforce effective cavity-basicity against solution-acidity. Synergistic actions arisen from cage hydrophobicity, host-guest electrostatic interactions and imidazole-N coordination facilitate C(sp)-H activation and carbanionic intermediate stabilization of terminal alkynes to achieve unusual H/D-exchange and Glaser coupling under acidic conditions, and enable phase transfers of water-insoluble substrates/products/co-catalysts to make immiscible-phase and bi-phase catalysis feasible, thus providing a useful catalytic protocol to combine merits from homogeneous, heterogeneous, enzymatic and phase transfer catalysis.
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Affiliation(s)
- Kang Li
- School of Chemistry, South China Normal University, Guangzhou, 510006, China.,MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Kai Wu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yu-Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jing Guo
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Peng Hu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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17
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Egoshi S, Dodo K, Ohgane K, Sodeoka M. Deuteration of terminal alkynes realizes simultaneous live cell Raman imaging of similar alkyne-tagged biomolecules. Org Biomol Chem 2021; 19:8232-8236. [PMID: 34528645 DOI: 10.1039/d1ob01479j] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Alkynes were employed as tags to observe small molecules in cells by Raman microscopy. Herein, simple deuteration was found to shift the vibrational frequency of the alkyne by 135 cm-1. Two-color Raman imaging of D-alkynes and H-alkynes made it possible to distinguish between and observe similar small molecules in live cells.
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Affiliation(s)
- Syusuke Egoshi
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Kosuke Dodo
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
- RIKEN Center for Sustainable Resource Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kenji Ohgane
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
- RIKEN Center for Sustainable Resource Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
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18
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Affiliation(s)
- Shiv Kumar
- Synthetic Organic Chemistry Research Laboratory Department of Chemistry University of Delhi 110007 Delhi India
| | - Monika Patel
- Ramjas College Department of Chemistry University of Delhi 110007 Delhi India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory Department of Chemistry University of Delhi 110007 Delhi India
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19
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Yang X, Ben H, Ragauskas AJ. Recent Advances in the Synthesis of Deuterium‐Labeled Compounds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100381] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xiaoli Yang
- State Key Laboratory of BioFibers and Eco-textiles Qingdao University Qingdao 266071 P. R. China
| | - Haoxi Ben
- State Key Laboratory of BioFibers and Eco-textiles Qingdao University Qingdao 266071 P. R. China
| | - Arthur J. Ragauskas
- Center for Renewable Carbon Department of Forestry Wildlife and Fisheries University of Tennessee Institute of Agriculture Knoxville TN 37996 USA
- Department of Chemical and Biomolecular Engineering University of Tennessee Knoxville TN 37996 USA
- Joint Institute for Biological Science Biosciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
- The Center for Bioenergy Innovation (CBI) Oak Ridge National Laboratory Oak Ridge TN 37831 USA
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20
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Li K, Wu K, Fan YZ, Guo J, Lu YL, Wang YF, Maurin G, Su CY. Acidic open-cage solution containing basic cage-confined nanospaces for multipurpose catalysis. Natl Sci Rev 2021; 9:nwab155. [PMID: 35663244 PMCID: PMC9155638 DOI: 10.1093/nsr/nwab155] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 08/07/2021] [Accepted: 08/08/2021] [Indexed: 11/20/2022] Open
Abstract
The nanoscale chemical spaces inherent in porous organic/coordination cages or solid/liquid materials have been continuously explored for their nanoconfinement effect on selective adsorption and reaction of small gas or organic molecules. Herein, we aim to rationalize the unconventional chemical reactivities motivated by the cage-confined nanospaces in aqueous solutions, where the robust yet permeable nanospaces defined by the open cages facilitate dynamic guest exchange and unusual chemical reactions. The high positive charges on [(Pd/Pt)6(RuL3)8]28+ nanocages drive imidazole–proton equilibrium to display a significantly perturbed pKa shift, creating cage-defined nanospaces in solution with distinct intrinsic basicity and extrinsic acidity. The supramolecular cage effect plays pivotal roles in elaborating robust solution nanospaces, controlling ingress-and-egress molecular processes through open-cage portals and endowing nanocages with transition-state stabilization, amphoteric reactivities and the phase transfer of insoluble molecules, thus promoting chemical transformations in unconventional ways. Consequently, a wide range of application of cage-confined catalysis with anomalous reactivities may be expected based on this kind of open-cage solution medium, which combines cage nanocavity, solution heterogeneity and liquid-phase fluidity to benefit various potential mass transfer and molecular process options.
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Affiliation(s)
| | | | | | - Jing Guo
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Yu-Lin Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuan-Fan Wang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier, Centre National de la Recherche Scientifique, École Nationale Supérieure de Chimie de Montpellier, Université de Montpellier, Montpellier 34095, France
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21
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Lasso JD, Castillo-Pazos DJ, Li CJ. Green chemistry meets medicinal chemistry: a perspective on modern metal-free late-stage functionalization reactions. Chem Soc Rev 2021; 50:10955-10982. [PMID: 34382989 DOI: 10.1039/d1cs00380a] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The progress of drug discovery and development is paced by milestones reached in organic synthesis. In the last decade, the advent of late-stage functionalization (LSF) reactions has represented a valuable breakthrough. Recent literature has defined these reactions as the chemoselective modification of complex molecules by means of C-H functionalization or the manipulation of endogenous functional groups. Traditionally, these diversifications have been accomplished by organometallic means. However, the presence of metals carries disadvantages related to their cost, environmental hazard and health risks. Fundamentally, green chemistry directives can help minimize such hazards through the development of metal-free LSF methodologies. In this review, we expand the current discussion on metal-free LSF reactions by providing an overview of C(sp2)-H, and C(sp3)-H functionalizations, as well as the utilization of heteroatom-containing functional groups as chemical handles. Selected topics such as metal-free cross-dehydrogenative coupling (CDC) reactions, organocatalysis, electrochemistry and photochemistry are also discussed. By writing the first review on metal-free LSF methodologies, we aim to highlight current advances in the field with examples that reveal specific challenges and solutions, as well as future research opportunities.
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Affiliation(s)
- Juan D Lasso
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Durbis J Castillo-Pazos
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
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22
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Yamada T, Park K, Sajiki H. Development of Solid Catalysts for Selective Reactions and their Application to Continuous-Flow Reactions. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tsuyoshi Yamada
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
| | | | - Hironao Sajiki
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
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23
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A practical and efficient method for late-stage deuteration of terminal alkynes with silver salt as catalyst. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152807] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Palchykov V, Dale PC, Robertson J. Nucleophilic vinylic substitution in bicyclic methyleneaziridines: S NV π or S NV σ? NEW J CHEM 2021. [DOI: 10.1039/d1nj01458g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A stereoselective synthesis of the monodeuterated methyleneaziridine shown allowed the stereochemical course of formal SNV-mode ring-opening with copper-based organometallics to be assigned.
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Affiliation(s)
- Vitalii Palchykov
- Research Institute of Chemistry and Geology
- Oles Honchar Dnipro National University
- Dnipro 49010
- Ukraine
| | - Peter C. Dale
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford OX1 3TA
- UK
| | - Jeremy Robertson
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford OX1 3TA
- UK
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25
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Sloane SE, Reyes A, Vang ZP, Li L, Behlow KT, Clark JR. Copper-Catalyzed Formal Transfer Hydrogenation/Deuteration of Aryl Alkynes. Org Lett 2020; 22:9139-9144. [DOI: 10.1021/acs.orglett.0c03632] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Samantha E. Sloane
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233-1881 United States
| | - Albert Reyes
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233-1881 United States
| | - Zoua Pa Vang
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233-1881 United States
| | - Lingzi Li
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233-1881 United States
| | - Kiera T. Behlow
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233-1881 United States
| | - Joseph R. Clark
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233-1881 United States
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26
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Seo E, Oh J, Lee S. Metal‐Free Decarboxylation of Alkynoic Acids for the Synthesis of Terminal Alkynes. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Eunkyeong Seo
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
| | - Jonghoon Oh
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea
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27
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Davenel V, Nisole C, Fontaine-Vive F, Fourquez JM, Chollet AM, Michelet V. Gold-Catalyzed Cycloisomerization of 1,6-Cyclohexenylalkyne: An Efficient Entry to Bicyclo[3.2.1]oct-2-ene and Bicyclo[3.3.1]nonadiene. J Org Chem 2020; 85:12657-12669. [PMID: 32875797 DOI: 10.1021/acs.joc.0c01841] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient and mild synthetic route for the preparation of functionalized bicyclo[3.2.1]oct-2-ene and bicyclo[3.3.1]nonadiene via gold-mediated cycloisomerization of 1,6-enynes has been developed. This atom-economical catalytic process was optimized and relied on the efficiency of IPrAuNTf2 allowing the formation of functionalized bicyclic adducts in 55-91% isolated yields (18 products). The reliable access to bicyclic derivatives was demonstrated on a 3 g scale with a low catalyst loading. The process occurred on a 5-exo versus 6-endo pathway depending on the substitution of the alkynyl moiety. Density functional theory (DFT) calculations were performed on the stability of intermediates, and this study corroborated the endo/exo ratio and the mechanistic pathway with key intermediates. Reduction of the ester moiety and hydrogenation of the exo-methylene double bond of the bicyclo[3.2.1]oct-2-ene adduct illustrated the potential postfunctionalization of bicyclic derivatives.
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Affiliation(s)
- Vincent Davenel
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France.,Institut de Chimie de Nice, University Côte d'Azur, University Nice Sophia-Antipolis, Parc Valrose, 28 avenue Valrose, 06100 Nice, France
| | - Christian Nisole
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France
| | - Fabien Fontaine-Vive
- Institut de Chimie de Nice, University Côte d'Azur, University Nice Sophia-Antipolis, Parc Valrose, 28 avenue Valrose, 06100 Nice, France
| | - Jean-Marie Fourquez
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France
| | - Anne-Marie Chollet
- PEX Chimie, Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy/Seine, France
| | - Véronique Michelet
- Institut de Chimie de Nice, University Côte d'Azur, University Nice Sophia-Antipolis, Parc Valrose, 28 avenue Valrose, 06100 Nice, France
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28
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Puerta-Oteo R, Munarriz J, Polo V, Jiménez MV, Pérez-Torrente JJ. Carboxylate-Assisted β-(Z) Stereoselective Hydrosilylation of Terminal Alkynes Catalyzed by a Zwitterionic Bis-NHC Rhodium(III) Complex. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01582] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Raquel Puerta-Oteo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Julen Munarriz
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Department of Chemistry & Biochemistry, University of California Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Víctor Polo
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - M. Victoria Jiménez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
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29
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Li SJ, Huang J, He JY, Zhang RJ, Qian HD, Dai XL, Kong HH, Xu H. Highly enantioselective copper-catalyzed propargylic amination to access N-tethered 1,6-enynes. RSC Adv 2020; 10:38478-38483. [PMID: 35685332 PMCID: PMC9127637 DOI: 10.1039/d0ra07698h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
A highly enantioselective copper-catalyzed propargylic amination has been developed with a new chiral N,N,P ligand, providing a series of N-tethered 1,6-enynes in good to excellent yields with excellent enantioselectivities.
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Affiliation(s)
- Si-Jia Li
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Jian Huang
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Jin-Yu He
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Rui-Jin Zhang
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Hao-Dong Qian
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Xue-Lin Dai
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Han-Han Kong
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Hao Xu
- CCNU-uOttawa Joint Research Centre
- Key Laboratory of Pesticides & Chemical Biology Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
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30
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Wang Q, Xi Chen, Wang XG, Liu HC, Liang YM. Base-Promoted Nitrile–Alkyne Domino-Type Cyclization: A General Method to Trisubstituted Imidazoles. Org Lett 2019; 21:9874-9877. [DOI: 10.1021/acs.orglett.9b03782] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qiang Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Gang Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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31
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Wu D, Zhang X, Li Y, Ying S, Zhu L, Li Z, Yang G, Van der Eycken EV. Divergent Access to Imidazopyrazinones and Imidazodiazepinones by Regioswitchable Post-Ugi Heteroannulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Danjun Wu
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Xueling Zhang
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Yi Li
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Sanjun Ying
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Lixi Zhu
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; KU Leuven; Celestijnenlaan 200F 3001 Leuven Heverlee Belgium
| | - Gensheng Yang
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; KU Leuven; Celestijnenlaan 200F 3001 Leuven Heverlee Belgium
- Peoples Friendship University of Russia (RUDN University); 117198 Moscow Russia
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32
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Feng X, Ji P, Li Z, Drake T, Oliveres P, Chen EY, Song Y, Wang C, Lin W. Aluminum Hydroxide Secondary Building Units in a Metal–Organic Framework Support Earth-Abundant Metal Catalysts for Broad-Scope Organic Transformations. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00259] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xuanyu Feng
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Pengfei Ji
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Zhe Li
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
| | - Tasha Drake
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Pau Oliveres
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Emily Y. Chen
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Yang Song
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Cheng Wang
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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33
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Lopez SS, Jaworski AA, Scheidt KA. NHC-Catalyzed Formal [2+2] Annulations of Allenoates for the Synthesis of Substituted Oxetanes. J Org Chem 2018; 83:14637-14645. [DOI: 10.1021/acs.joc.8b02464] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Susana S. Lopez
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University, Silverman Hall, Evanston, Illinois 60208, United States
| | - Ashley A. Jaworski
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University, Silverman Hall, Evanston, Illinois 60208, United States
| | - Karl A. Scheidt
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University, Silverman Hall, Evanston, Illinois 60208, United States
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34
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Zhang X, Xie X, Liu Y. Nickel-Catalyzed Highly Regioselective Hydrocyanation of Terminal Alkynes with Zn(CN) 2 Using Water as the Hydrogen Source. J Am Chem Soc 2018; 140:7385-7389. [PMID: 29851478 DOI: 10.1021/jacs.8b02542] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The first efficient and general nickel-catalyzed hydrocyanation of terminal alkynes with Zn(CN)2 in the presence of water has been developed. The reaction provides a regioselective protocol for the synthesis of functionalized vinyl nitriles with a range of structural diversity under mild reaction conditions while obviating use of the volatile and hazardous reagent of HCN. Deuterium-labeling experiments confirmed the role of water as the hydrogen source in this hydrocyanation reaction.
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Affiliation(s)
- Xingjie Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
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35
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Yamada T, Kuwata M, Takakura R, Monguchi Y, Sajiki H, Sawama Y. Organocatalytic Nitroaldol Reaction Associated with Deuterium-Labeling. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701224] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tsuyoshi Yamada
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Marina Kuwata
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Ryoya Takakura
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Yasunari Monguchi
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Hironao Sajiki
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Yoshinari Sawama
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
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36
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Fricke PJ, Stasko JL, Robbins DT, Gardner AC, Stash J, Ferraro MJ, Fennie MW. Copper-catalyzed hydroamination of propargyl imidates. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.10.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Li H, Zhang B, Dong Y, Liu T, Zhang Y, Nie H, Yang R, Ma X, Ling Y, An J. A selective and cost-effective method for the reductive deuteration of activated alkenes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.092] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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38
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Liang X, Duttwyler S. Efficient Brønsted-Acid-Catalyzed Deuteration of Arenes and Their Transformation to Functionalized Deuterated Products. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700218] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xuewei Liang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Simon Duttwyler
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
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39
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Han M, Ma X, Yao S, Ding Y, Yan Z, Adijiang A, Wu Y, Li H, Zhang Y, Lei P, Ling Y, An J. Development of a Modified Bouveault–Blanc Reduction for the Selective Synthesis of α,α-Dideuterio Alcohols. J Org Chem 2017; 82:1285-1290. [PMID: 28029787 DOI: 10.1021/acs.joc.6b02950] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Minhui Han
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Xiaodong Ma
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Shangchu Yao
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yuxuan Ding
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Zihan Yan
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Adila Adijiang
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yufei Wu
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Hengzhao Li
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yuntong Zhang
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Peng Lei
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yun Ling
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jie An
- College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
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40
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Srivastava A, Patel SS, Chandna N, Jain N. Copper-Catalyzed anti-Markovnikov Hydroindolation of Terminal Alkynes: Regioselective Synthesis of Bis(indolyl)alkanes. J Org Chem 2016; 81:11664-11670. [DOI: 10.1021/acs.joc.6b02058] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ananya Srivastava
- Department
of Chemistry, Indian Institute of Technology, Delhi 110016, India
| | - Shyam Sunder Patel
- Department
of Chemistry, Indian Institute of Technology, Delhi 110016, India
| | - Nisha Chandna
- Department
of Chemistry, Indian Institute of Technology, Delhi 110016, India
| | - Nidhi Jain
- Department
of Chemistry, Indian Institute of Technology, Delhi 110016, India
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41
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Hu P, Chen L, Deming CP, Bonny LW, Lee HW, Chen S. Identification of the formation of metal-vinylidene interfacial bonds of alkyne-capped platinum nanoparticles by isotopic labeling. Chem Commun (Camb) 2016; 52:11631-3. [PMID: 27538883 PMCID: PMC5849267 DOI: 10.1039/c6cc05626a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stable platinum nanoparticles were prepared by the self-assembly of 1-dodecyne and dodec-1-deuteroyne onto bare platinum colloid surfaces. The nanoparticles exhibited consistent core size and optical properties. FTIR and NMR measurements confirmed the formation of Pt-vinylidene (Pt[double bond, length as m-dash]C[double bond, length as m-dash]CH-) interfacial linkages rather than Pt-acetylide (Pt-C[triple bond, length as m-dash]C-) and platinum-hydride (Pt-H) bonds.
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Affiliation(s)
- Peiguang Hu
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USA.
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42
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Pušavec Kirar E, Grošelj U, Mirri G, Požgan F, Strle G, Štefane B, Jovanovski V, Svete J. "Click" Chemistry: Application of Copper Metal in Cu-Catalyzed Azomethine Imine-Alkyne Cycloadditions. J Org Chem 2016; 81:5988-97. [PMID: 27305104 DOI: 10.1021/acs.joc.6b00945] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A series of 16 copper-catalyzed azomethine imine-alkyne cycloaddition (CuAIAC) reactions between four pyrazolidinone-1-azomethine imines and four terminal ynones gave the corresponding fluorescent cycloadducts as bimane analogues in very high yields. The applicability of CuAIAC was demonstrated by the fluorescent labeling of functionalized polystyrene and by using Cu-C and Cu-Fe as catalysts. Experimental evidence, kinetic measurements, and correlation between a clean catalyst surface and the reaction rate are in agreement with a homotopic catalytic system with catalytic Cu(I)-acetylide formed from Cu(0) by "in situ" oxidation. The availability of azomethine imines, mild reaction conditions, simple workup, and scalability make CuAIAC a viable supplement to the Cu-catalyzed azide-alkyne cycloaddition reaction in "click" chemistry.
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Affiliation(s)
- Eva Pušavec Kirar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
| | - Uroš Grošelj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
| | - Giorgio Mirri
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
| | - Franc Požgan
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
| | - Gregor Strle
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
| | - Bogdan Štefane
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
| | - Vasko Jovanovski
- National Institute of Chemistry , Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Jurij Svete
- Faculty of Chemistry and Chemical Technology, University of Ljubljana , Večna Pot 113, SI-1000 Ljubljana, Slovenia
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43
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Kenny M, Kitson DJ, Franckevičius V. Catalytic Chemo- and Regioselective Coupling of 1,3-Dicarbonyls with N-Heterocyclic Nucleophiles. J Org Chem 2016; 81:5162-72. [DOI: 10.1021/acs.joc.6b00731] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miles Kenny
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Daniel J. Kitson
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Vilius Franckevičius
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
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44
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Škríba A, Jašík J, Andris E, Roithová J. Interaction of Ruthenium(II) with Terminal Alkynes: Benchmarking DFT Methods with Spectroscopic Data. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Anton Škríba
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Prague 2, Czech Republic
| | - Juraj Jašík
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Prague 2, Czech Republic
| | - Erik Andris
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Prague 2, Czech Republic
| | - Jana Roithová
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Prague 2, Czech Republic
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45
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Yepuri NR, Darwish TA, Krause-Heuer AM, Leung AE, Delhom R, Wacklin HP, Holden PJ. Synthesis of Perdeuterated 1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine ([D 82 ]POPC) and Characterisation of Its Lipid Bilayer Membrane Structure by Neutron Reflectometry. Chempluschem 2016; 81:315-321. [PMID: 31968790 DOI: 10.1002/cplu.201500452] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Indexed: 11/05/2022]
Abstract
1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC), an unsaturated acyl chain containing lipid, is often the predominant lipid in eukaryotic cell membranes in which it is crucial for the fluidity of membranes under physiological conditions. Commercially available, partially deuterated [D31 ]1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine ([D31 ]POPC) does not provide sufficient isotopic contrast for detailed structural studies of multicomponent membranes through neutron techniques. Herein, a relatively straightforward and generic chemical deuteration method is discussed for the asymmetric synthesis of perdeuterated [D31 ]1-palmitoyl-[D33 ]2-oleoyl-sn-[D5 ]glycero-[D13 ]3-phosphocholine ([D82 ]POPC) that also allows selective deuteration of any of its constituent groups. Neutron reflectivity of a [D82 ]POPC-supported bilayer was used to experimentally determine the neutron scattering length density profile of the lipid. The acyl chains of [D82 ]POPC are closely contrast-matched to heavy water, whereas the very high scattering length density of the deuterated glycerophosphocholine head groups provides good contrast to membrane-binding agents in both deuterated and non-deuterated solvent environments.
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Affiliation(s)
- Nageshwar R Yepuri
- National Deuteration Facility, Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia
| | - Tamim A Darwish
- National Deuteration Facility, Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia
| | - Anwen M Krause-Heuer
- National Deuteration Facility, Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia
| | - Anna E Leung
- National Deuteration Facility, Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia
| | - Robin Delhom
- European Spallation Source ERIC, Box 176, 22100, Lund, Sweden.,Institut Laue Langevin (ILL), 71 av des Martyrs, 38042, Grenoble, France
| | - Hanna P Wacklin
- European Spallation Source ERIC, Box 176, 22100, Lund, Sweden.,Division of Physical Chemistry, Department of Chemistry, Lund Universit, P.O. Box 124, 22100, Lund, Sweden
| | - Peter J Holden
- National Deuteration Facility, Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia
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46
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Chatterjee B, Gunanathan C. The ruthenium-catalysed selective synthesis of mono-deuterated terminal alkynes. Chem Commun (Camb) 2016; 52:4509-12. [DOI: 10.1039/c6cc01401a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient catalytic system is reported for chemoselective synthesis of mono-deuterated terminal alkynes using deuterium oxide in which the reaction proceeds via Ru–acetylide intermediates formed by selective activation of the sp-CH bond.
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Affiliation(s)
- Basujit Chatterjee
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar
- India
| | - Chidambaram Gunanathan
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar
- India
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47
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Navarro-Vázquez A. Why base-catalyzed isomerization of N-propargyl amides yields mostly allenamides rather than ynamides. Beilstein J Org Chem 2015; 11:1441-6. [PMID: 26425200 PMCID: PMC4578395 DOI: 10.3762/bjoc.11.156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 07/30/2015] [Indexed: 11/30/2022] Open
Abstract
The base-catalyzed isomerization of N-propargylamides or carbamates may furnish N-allenyl compounds (allenamides/allencarbamates) or further evolve to N-alkynyl compounds (ynamides or yncarbamates). The particular fate of this reaction varies from experiment to experiment and there is no clear rule for predicting the reaction outcome for a particular structure. With the support of ab initio and DFT computations, this work shows that observed results can be explained by assuming an exchange equilibrium between energetically close N-propargyl, allenyl and N-alkynyl forms and that the reaction outcome correlates to a particular equilibrium mixture. Due to the very small energy gap between the N-allenyl and N-alkynyl forms, small structural changes may easily alter the equilibrium position, explaining the variety of observed experimental results. Based on CBS-QB3 computations, the ωB97 functional provided reasonably accurate isomerization energies and could successfully predict the experimentally observed behavior for several examples from the literature.
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Affiliation(s)
- Armando Navarro-Vázquez
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, Cidade Universitária - Recife, PE - CEP 50.740-560, Brazil
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48
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Rubio N, Mei KC, Klippstein R, Costa P, Hodgins N, Wang JTW, Festy F, Abbate V, Hider RC, Chan KLA, Al-Jamal KT. Solvent-Free Click-Mechanochemistry for the Preparation of Cancer Cell Targeting Graphene Oxide. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18920-3. [PMID: 26278410 PMCID: PMC4559840 DOI: 10.1021/acsami.5b06250] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Polyethylene glycol-functionalized nanographene oxide (PEGylated n-GO) was synthesized from alkyne-modified n-GO, using solvent-free click-mechanochemistry, i.e., copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC). The modified n-GO was subsequently conjugated to a mucin 1 receptor immunoglobulin G antibody (anti-MUC1 IgG) via thiol-ene coupling reaction. n-GO derivatives were characterized with Fourier-transformed infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), Bradford assay, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), and atomic force microscopy (AFM). Cell targeting was confirmed in vitro in MDA-MB-231 cells, either expressing or lacking MUC1 receptors, using flow cytometry, confocal laser scanning microscopy (CLSM) and multiphoton (MP) fluorescence microscopy. Biocompatibility was assessed using the modified lactate dehydrongenase (mLDH) assay.
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Affiliation(s)
- Noelia Rubio
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Kuo-Ching Mei
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Rebecca Klippstein
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Pedro
M. Costa
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Naomi Hodgins
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Julie Tzu-Wen Wang
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Frederic Festy
- Biomaterials,
Biomimetics and Biophotonics Division, Dental Institute, King’s College London, London SE1 9RT, United Kingdom
| | - Vincenzo Abbate
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Robert C. Hider
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Ka Lung Andrew Chan
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Khuloud T. Al-Jamal
- Institute
of Pharmaceutical Science, King’s
College London, Franklin-Wilkins
Building, 150 Stamford Street, London SE1 9NH, United Kingdom
- E-mail:
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49
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Di Giuseppe A, Castarlenas R, Oro LA. Mechanistic considerations on catalytic H/D exchange mediated by organometallic transition metal complexes. CR CHIM 2015. [DOI: 10.1016/j.crci.2015.02.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Gelinas BS, Jaye JA, Mattos GR, Fort EH. Rapid and efficient desilylation and deuteration of alkynylpyridines. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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