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Hu Y, Yuan J, Li Z, Zhao L, Zhao J, Yu X. Asymmetric α-spirocyclopropanation of oxindoles and benzofuranones via dynamic kinetic resolution. Commun Chem 2022; 5:106. [PMID: 36697948 PMCID: PMC9814566 DOI: 10.1038/s42004-022-00695-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/23/2022] [Indexed: 01/28/2023] Open
Abstract
Chiral benzo five-membered heterocyclic spirocyclopropanes are an important class of parent core structures with pharmacological activity. A novel organocatalytic one-pot cascade ether oxidation iminium-ion activation strategy for the asymmetric spirocyclopropylation of benzofuran-2-ones and indolin-2-ones from allyl tert-butyl ethers/ pent-2,4-dienyl ethyl ethers with excellent enantioselectivity (ee% up to > 99) and diastereoselectivity(dr.% up to 91:9) has been developed. This process involves the successful dynamic kinetic resolution of racemic 3-bromobenzofuran-2-ones or 3-bromoindolin-2-ones. Its synthetic application will provide a new aminocatalytic cascade tool for the efficient synthesis of complex molecules.
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Affiliation(s)
- Yang Hu
- grid.28056.390000 0001 2163 4895Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science & Technology, Shanghai, People’s Republic of China ,grid.28056.390000 0001 2163 4895State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai, 200237 People’s Republic of China
| | - Jie Yuan
- grid.28056.390000 0001 2163 4895Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science & Technology, Shanghai, People’s Republic of China ,grid.28056.390000 0001 2163 4895State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai, 200237 People’s Republic of China
| | - Zheyao Li
- grid.28056.390000 0001 2163 4895Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science & Technology, Shanghai, People’s Republic of China ,grid.28056.390000 0001 2163 4895State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai, 200237 People’s Republic of China
| | - Lin Zhao
- grid.28056.390000 0001 2163 4895Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science & Technology, Shanghai, People’s Republic of China ,grid.28056.390000 0001 2163 4895State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai, 200237 People’s Republic of China
| | - Jianhong Zhao
- grid.28056.390000 0001 2163 4895Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science & Technology, Shanghai, People’s Republic of China ,grid.28056.390000 0001 2163 4895State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai, 200237 People’s Republic of China
| | - Xinhong Yu
- grid.28056.390000 0001 2163 4895Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science & Technology, Shanghai, People’s Republic of China ,grid.28056.390000 0001 2163 4895State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai, 200237 People’s Republic of China
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2
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Kobayashi S, Tamura T. Potential Degradation of 4‐Methyltetrahydropyran (4‐MeTHP) under Oxidation Conditions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100441] [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)
- Shoji Kobayashi
- Department of Applied Chemistry, Faculty of Engineering Osaka Institute of Technology 5-16-1 Ohmiya, Asahi-ku Osaka 535-8585 Japan
| | - Tomoki Tamura
- Department of Applied Chemistry, Faculty of Engineering Osaka Institute of Technology 5-16-1 Ohmiya, Asahi-ku Osaka 535-8585 Japan
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3
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Sueki S, Matsuyama M, Watanabe A, Kanemaki A, Katakawa K, Anada M. Ruthenium-Catalyzed Dehydrogenation of Alcohols with Carbodiimide via a Hydrogen Transfer Mechanism. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Shunsuke Sueki
- Faculty of Pharmacy; Musashino University; Nishitokyo Tokyo 202-8585 Japan
| | - Mizuki Matsuyama
- Faculty of Pharmacy; Musashino University; Nishitokyo Tokyo 202-8585 Japan
| | - Azumi Watanabe
- Faculty of Pharmacy; Musashino University; Nishitokyo Tokyo 202-8585 Japan
| | - Arata Kanemaki
- Faculty of Pharmacy; Musashino University; Nishitokyo Tokyo 202-8585 Japan
| | - Kazuaki Katakawa
- Faculty of Pharmacy; Musashino University; Nishitokyo Tokyo 202-8585 Japan
| | - Masahiro Anada
- Faculty of Pharmacy; Musashino University; Nishitokyo Tokyo 202-8585 Japan
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4
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Lithium promoted mesoporous manganese oxide catalyzed oxidation of allyl ethers. Nat Commun 2019; 10:655. [PMID: 30737383 PMCID: PMC6368603 DOI: 10.1038/s41467-019-08619-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 01/18/2019] [Indexed: 11/25/2022] Open
Abstract
Herein we report the first example of the catalytic aerobic partial oxidation of allyl ether to its acrylate ester derivative. Many partial oxidations often need an expensive oxidant such as peroxides or other species to drive such reactions. In addition, selective generation of esters using porous catalysts has been elusive. This reaction is catalyzed by a Li ion promoted mesoporous manganese oxide (meso-Mn2O3) under mild conditions with no precious metals, a reusable heterogeneous catalyst, and easy isolation. This process is very attractive for the oxidation of allyl ethers. We report on the catalytic activity, selectivity, and scope of the reaction. In the best cases presented, almost complete conversion of allyl ether with near complete chemo-selectivity towards acrylate ester derivatives is observed. Based on results from controlled experiments, we propose a possible reaction mechanism for the case in which N-hydroxyphthalimide (NHPI) is used in combination with trichloroacetonitrile (CCl3CN). Acrylics and acrylates have become important building blocks for the chemical industry, but their efficient synthesis remains a challenge. Here, the authors report the first example of the catalytic aerobic partial oxidation of allyl ether to its acrylate ester derivative using a Li ion promoted mesoporous manganese oxide under mild conditions.
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5
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Fang Y, Zhao R, Yao Y, Liu Y, Chang D, Yao M, Shi L. Trichloroacetonitrile as an efficient activating agent for the ipso-hydroxylation of arylboronic acids to phenolic compounds. Org Biomol Chem 2019; 17:7558-7563. [DOI: 10.1039/c9ob01568j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and practical method for the ipso-hydroxylation of arylboronic acids was developed using TBHP and Cl3CCN under base-free conditions with blue-LED irradiation.
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Affiliation(s)
- Yuanding Fang
- School of Science
- Harbin Institute of Technology
- Shenzhen
- China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
| | - Rong Zhao
- School of Science
- Harbin Institute of Technology
- Shenzhen
- China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
| | - Yuan Yao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Yang Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Denghu Chang
- School of Science
- Harbin Institute of Technology
- Shenzhen
- China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
| | - Ming Yao
- Hubei Key Laboratory of Drug Synthesis and Optimization
- Jingchu University of Technology
- Jingmen
- China
| | - Lei Shi
- Hubei Key Laboratory of Drug Synthesis and Optimization
- Jingchu University of Technology
- Jingmen
- China
- School of Science
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6
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Trupej N, Novak Z, Knez Ž, Slugovc C, Kovačič S. Supercritical CO2 mediated functionalization of highly porous emulsion-derived foams: ScCO2 absorption and epoxidation. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.07.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Abstract
We present a mild way of converting secondary methyl ethers into ketones using calcium hypochlorite in aqueous acetonitrile with acetic acid as activator. The reaction is compatible with various oxygen- and nitrogen-containing functional groups and afforded the corresponding ketones in up to 98% yield. The use of this methodology could expand the application of the methyl group as a useful protecting group.
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Affiliation(s)
- Pieter J Gilissen
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands
| | - Daniel Blanco-Ania
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands
| | - Floris P J T Rutjes
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands
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8
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Ahmed OU, Mjalli FS, Al-Wahaibi T, Al-Wahaibi Y, AlNashef I. Efficient non-catalytic oxidative and extractive desulfurization of liquid fuels using ionic liquids. RSC Adv 2016. [DOI: 10.1039/c6ra22032k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Oxidative desulfurization (ODS) is one of the promising alternative and heavily researched desulfurization technologies.
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Affiliation(s)
- Omar U. Ahmed
- Petroleum and Chemical Engineering Department
- Sultan Qaboos University
- Sultanate of Oman
| | - Farouq S. Mjalli
- Petroleum and Chemical Engineering Department
- Sultan Qaboos University
- Sultanate of Oman
| | - Talal Al-Wahaibi
- Petroleum and Chemical Engineering Department
- Sultan Qaboos University
- Sultanate of Oman
| | - Yahya Al-Wahaibi
- Petroleum and Chemical Engineering Department
- Sultan Qaboos University
- Sultanate of Oman
| | - Inas M. AlNashef
- Department of Chemical and Environmental Engineering
- Masdar Institute for Science and Technology
- Masdar City
- United Arab Emirates
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9
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Hu Z, Liao H, An Q, Pan W, Cao P, Liu C, Huang Z, Xia W, Xu B, Liang G. Process development of clinical anti-HBV drug Y101: identification and synthesis of novel impurities. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2169-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Shen Z, Chen M, Fang T, Li M, Mo W, Hu B, Sun N, Hu X. Transformation of ethers into aldehydes or ketones: a catalytic aerobic deprotection/oxidation pathway. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Eey STC, Lear MJ. Total Synthesis of (−)-Platensimycin by Advancing Oxocarbenium- and Iminium-Mediated Catalytic Methods. Chemistry 2014; 20:11556-73. [DOI: 10.1002/chem.201400131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Indexed: 11/10/2022]
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12
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Wang Y, Ji S, Wei K, Lin J. Epiandrosterone-derived prolinamide as an efficient asymmetric catalyst for Michael addition reactions of aldehydes to nitroalkenes. RSC Adv 2014. [DOI: 10.1039/c4ra03075c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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13
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Moriyama K, Nakamura Y, Togo H. Oxidative Debenzylation of N-Benzyl Amides and O-Benzyl Ethers Using Alkali Metal Bromide. Org Lett 2014; 16:3812-5. [DOI: 10.1021/ol501703y] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Katsuhiko Moriyama
- Department
of Chemistry, Graduate School of Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yu Nakamura
- Department
of Chemistry, Graduate School of Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Department
of Chemistry, Graduate School of Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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14
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Qian M, Krishnan K, Kudova E, Li P, Manion BD, Taylor A, Elias G, Akk G, Evers AS, Zorumski CF, Mennerick S, Covey DF. Neurosteroid analogues. 18. Structure-activity studies of ent-steroid potentiators of γ-aminobutyric acid type A receptors and comparison of their activities with those of alphaxalone and allopregnanolone. J Med Chem 2014; 57:171-90. [PMID: 24328079 PMCID: PMC3951241 DOI: 10.1021/jm401577c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A model of the alignment of neurosteroids and ent-neurosteroids at the same binding site on γ-aminobutyric acid type A (GABAA) receptors was evaluated for its ability to identify the structural features in ent-neurosteroids that enhance their activity as positive allosteric modulators of this receptor. Structural features that were identified included: (1) a ketone group at position C-16, (2) an axial 4α-OMe group, and (3) a C-18 methyl group. Two ent-steroids were identified that were more potent than the anesthetic steroid alphaxalone in their threshold for and duration of loss of the righting reflex in mice. In tadpoles, loss of righting reflex for these two ent-steroids occurs with EC50 values similar to those found for allopregnanolone. The results indicate that ent-steroids have considerable potential to be developed as anesthetic agents and as drugs to treat brain disorders that are ameliorated by positive allosteric modulators of GABAA receptor function.
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Affiliation(s)
- Mingxing Qian
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Kathiresan Krishnan
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Eva Kudova
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Anesthesiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Ping Li
- Department of Anesthesiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Brad D. Manion
- Department of Anesthesiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Amanda Taylor
- Department of Psychiatry, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | | | - Gustav Akk
- Department of Anesthesiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Radiology, The Taylor Family Institute for Innovative Psychiatric Research, Washington University in St. Louis, St. Louis, Missouri, 63110, United States
| | - Alex S. Evers
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Anesthesiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Radiology, The Taylor Family Institute for Innovative Psychiatric Research, Washington University in St. Louis, St. Louis, Missouri, 63110, United States
| | - Charles F. Zorumski
- Department of Psychiatry, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Radiology, The Taylor Family Institute for Innovative Psychiatric Research, Washington University in St. Louis, St. Louis, Missouri, 63110, United States
- Department of Anatomy and Neurobiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Steven Mennerick
- Department of Psychiatry, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Radiology, The Taylor Family Institute for Innovative Psychiatric Research, Washington University in St. Louis, St. Louis, Missouri, 63110, United States
- Department of Anatomy and Neurobiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
| | - Douglas F. Covey
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Anesthesiology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Psychiatry, Washington University in St. Louis School of Medicine, St. Louis, Missouri, 63110, United States
- Department of Radiology, The Taylor Family Institute for Innovative Psychiatric Research, Washington University in St. Louis, St. Louis, Missouri, 63110, United States
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15
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Hussain H, Al-Harrasi A, Green IR, Ahmed I, Abbas G, Rehman NU. meta-Chloroperbenzoic acid (mCPBA): a versatile reagent in organic synthesis. RSC Adv 2014. [DOI: 10.1039/c3ra45702h] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review aims to collect and discuss the synthetic applications of meta-chloroperbenzoic acid (mCPBA) over the past few decades.
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Affiliation(s)
- Hidayat Hussain
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products
- University of Nizwa
- Nizwa, Sultanate of Oman
- Department of Chemistry
- University of Paderborn
| | - Ahmed Al-Harrasi
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products
- University of Nizwa
- Nizwa, Sultanate of Oman
| | - Ivan R. Green
- Department of Chemistry and Polymer Science
- University of Stellenbosch
- , South Africa
| | - Ishtiaq Ahmed
- Karlsruhe Institute of Technology (KIT)
- DFG Centre for Functional Nanostructures
- 76131 Karlsruhe, Germany
| | - Ghulam Abbas
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products
- University of Nizwa
- Nizwa, Sultanate of Oman
| | - Najeeb Ur Rehman
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products
- University of Nizwa
- Nizwa, Sultanate of Oman
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16
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17
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Amaoka Y, Kamijo S, Hoshikawa T, Inoue M. Radical Amination of C(sp3)–H Bonds Using N-Hydroxyphthalimide and Dialkyl Azodicarboxylate. J Org Chem 2012; 77:9959-69. [DOI: 10.1021/jo301840e] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yuuki Amaoka
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, Hongo,
Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Shin Kamijo
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, Hongo,
Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Tamaki Hoshikawa
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, Hongo,
Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical
Sciences, The University of Tokyo, Hongo,
Bunkyo-ku, Tokyo 113-0033,
Japan
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18
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An efficient and recyclable catalyst for the cleavage of tert-butyldiphenylsilyl ethers. Carbohydr Res 2012; 354:6-20. [DOI: 10.1016/j.carres.2012.02.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 02/14/2012] [Accepted: 02/22/2012] [Indexed: 11/23/2022]
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19
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Kamijo S, Hoshikawa T, Inoue M. Photochemically Induced Radical Transformation of C(sp3)–H Bonds to C(sp3)–CN Bonds. Org Lett 2011; 13:5928-31. [DOI: 10.1021/ol202659e] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shin Kamijo
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tamaki Hoshikawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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20
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Asghar SF, Lewis SE. Synthetic methods Part (II): oxidation and reduction methods. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1oc90012a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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