1
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Bhavyesh D, Soliya S, Konakanchi R, Begari E, Ashalu KC, Naveen T. The Recent Advances in Iron-Catalyzed C(sp 3 )-H Functionalization. Chem Asian J 2023:e202301056. [PMID: 38149480 DOI: 10.1002/asia.202301056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 12/28/2023]
Abstract
The use of iron as a core metal in catalysis has become a research topic of interest over the last few decades. The reasons are clear. Iron is the most abundant transition metal on Earth's crust and it is widely distributed across the world. It has been extracted and processed since the dawn of civilization. All these features render iron a noncontaminant, biocompatible, nontoxic, and inexpensive metal and therefore it constitutes the perfect candidate to replace noble metals (rhodium, palladium, platinum, iridium, etc.). Moreover, direct C-H functionalization is one of the most efficient strategies by which to introduce new functional groups into small organic molecules. The majority of organic compounds contain C(sp3 )-H bonds. Given the enormous importance of organic molecules in so many aspects of existence, the utilization and bioactivity of C(sp3 )-H bonds are of the utmost importance. This review sheds light on the substrate scope, selectivity, benefits, and limitations of iron catalysts for direct C(sp3 )-H bond activations. An overview of the use of iron catalysis in C(sp3 )-H activation protocols is summarized herein up to 2022.
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Affiliation(s)
- Desai Bhavyesh
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology Surat, Gujarat, 395 007, India
| | - Sudha Soliya
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology Surat, Gujarat, 395 007, India
| | - Ramaiah Konakanchi
- Department of Chemistry, VNR Vignana Jyoti Institute of Engineering and Technology, Hyderabad, 500090, India
| | - Eeshwaraiah Begari
- School of Applied Material Sciences, Central University of Gujarat, Gandhinagar, 382030, India
| | - Kashamalla Chinna Ashalu
- Department of Chemistry, School of Science, Indrashil University, Rajpur, Kadi, Gujarat, 382715, India
| | - Togati Naveen
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology Surat, Gujarat, 395 007, India
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2
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Sakamoto K, Nishimura T. Asymmetric addition of an N-methyl C(sp 3)-H bond to cyclic alkenes enabled by an iridium/phosphine-olefin catalyst. Chem Commun (Camb) 2022; 58:11783-11786. [PMID: 36172832 DOI: 10.1039/d2cc04642c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Iridium-catalyzed asymmetric C-H addition of an N-methyl group on 3-trifluoromethyl-2-(N-methylamino)pyridine to cyclic alkenes was realized by using a phosphine-olefin ligand. Indene and its 7-substituted derivatives, acenaphthylene, and some bicyclic alkenes underwent the addition to give the corresponding products in good yields with high enantioselectivity.
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Affiliation(s)
- Kana Sakamoto
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi, Osaka 558-8585, Japan.
| | - Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi, Osaka 558-8585, Japan.
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3
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Yamauchi D, Yamakawa K, Nishimura T. Iridium-Catalyzed Enantioselective Direct α-C–H Alkylation of Saturated Cyclic Amines with Alkenes. Org Lett 2022; 24:6828-6833. [DOI: 10.1021/acs.orglett.2c02733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daisuke Yamauchi
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi, Osaka 558-8585, Japan
| | - Kentaro Yamakawa
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi, Osaka 558-8585, Japan
| | - Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi, Osaka 558-8585, Japan
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4
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Mandal D, Roychowdhury S, Biswas JP, Maiti S, Maiti D. Transition-metal-catalyzed C-H bond alkylation using olefins: recent advances and mechanistic aspects. Chem Soc Rev 2022; 51:7358-7426. [PMID: 35912472 DOI: 10.1039/d1cs00923k] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal catalysis has contributed immensely to C-C bond formation reactions over the last few decades, and alkylation is no exception. The superiority of such methodologies over traditional alkylation is evident from minimal reaction steps, shorter reaction times, and atom economy while also allowing control over regio- and stereo-selectivity. In particular, hydrocarbonation of alkenes has grabbed increased attention due its fundamental ability to effectively and selectively synthesise a wide range of industrially and pharmaceutically relevant moieties. This review attempts to provide a scientific viewpoint and a systematic analysis of the recent developments in transition-metal-catalyzed alkylation of various C-H bonds using simple and activated olefins. The key features and mechanistic studies involved in these transformations are described briefly.
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Affiliation(s)
- Debasish Mandal
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462066, India
| | - Sumali Roychowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Jyoti Prasad Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Siddhartha Maiti
- School of Bioengineering, Vellore Institute of Technology, Bhopal University, Bhopal-Indore Highway, Kothrikalan, Sehore, Madhya Pradesh-466114, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India. .,Department of Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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5
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Das KK, Ghosh AK, Hajra A. Late-stage ortho-C-H alkenylation of 2-arylindazoles in aqueous medium by Manganese(i)-catalysis. RSC Adv 2022; 12:19412-19416. [PMID: 35865587 PMCID: PMC9251645 DOI: 10.1039/d2ra03547b] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/27/2022] [Indexed: 12/22/2022] Open
Abstract
Earth-abundant and water-tolerant manganese(i) catalyzed alkenylation of 2-arylindazole with alkyl and aryl alkynes through C–H bond activation is described with a unique level of E-selectivity. The reaction proceeds through the control of C3 nucleophilicity of 2-aryl indazoles. This method is applied to the late-stage functionalization of complex molecules including ethinylestradiol, norethisterone, and N-protected amino acid derivatives. The kinetic isotope studies suggest that the C–H bond activation step may not be the rate-determining step. Earth-abundant and water-tolerant manganese(i) catalyzed alkenylation of 2-arylindazole with alkyl and aryl alkynes through C–H bond activation is described with a unique level of E-selectivity.![]()
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Affiliation(s)
- Krishna Kanta Das
- Department of Chemistry, Visva-Bharati (A Central University) Santiniketan, 731235 West Bengal India
| | - Asim Kumar Ghosh
- Department of Chemistry, Visva-Bharati (A Central University) Santiniketan, 731235 West Bengal India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University) Santiniketan, 731235 West Bengal India
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6
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Tanaka K, Hattori H, Yabe R, Nishimura T. Ir-Catalyzed cyclization of α,ω-dienes with an N-methyl group via two C-H activation steps. Chem Commun (Camb) 2022; 58:5371-5374. [PMID: 35411896 DOI: 10.1039/d2cc01275h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iridium-catalyzed sp3 C-H alkylation of an N-methyl group with 1,5- and 1,6-dienes proceeded to give five- and six-membered carbocyclic compounds, respectively, in high yields. The reaction involves intermolecular alkylation of the N-methyl group with a vinyl moiety and subsequent intramolecular cyclization at the β-position of the initially formed alkylated intermediate. The reaction using a chiral bidentate phosphine ligand enabled the asymmetric synthesis of the cyclic compounds.
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Affiliation(s)
- Katsumasa Tanaka
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
| | - Hiroshi Hattori
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
| | - Ryota Yabe
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
| | - Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
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7
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Yamauchi D, Nakamura I, Nishimura T. Iridium-catalyzed enantioselective addition of an N-methyl C-H bond to α-trifluoromethylstyrenes via C-H activation. Chem Commun (Camb) 2021; 57:11787-11790. [PMID: 34676848 DOI: 10.1039/d1cc05076a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The Ir-catalyzed enantioselective addition of an N-methyl C-H bond of 2-(methylamino)pyridine derivatives to α-trifluoromethylstyrenes proceeded via C-H activation to give chiral γ-branched amine derivatives having a trifluoromethyl-substituted stereocenter. It was found that a bulky and electron-withdrawing group at the 3-position of 2-(methylamino)pyridines was necessary for the present C-H addition reaction catalyzed by a cationic iridium/chiral bisphosphine complex.
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Affiliation(s)
- Daisuke Yamauchi
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
| | - Ikumi Nakamura
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
| | - Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan.
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8
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Askey H, Grayson JD, Tibbetts JD, Turner-Dore JC, Holmes JM, Kociok-Kohn G, Wrigley GL, Cresswell AJ. Photocatalytic Hydroaminoalkylation of Styrenes with Unprotected Primary Alkylamines. J Am Chem Soc 2021; 143:15936-15945. [PMID: 34543004 PMCID: PMC8499025 DOI: 10.1021/jacs.1c07401] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 12/27/2022]
Abstract
Catalytic, intermolecular hydroaminoalkylation (HAA) of styrenes provides a powerful disconnection for pharmacologically relevant γ-arylamines, but current methods cannot utilize unprotected primary alkylamines as feedstocks. Metal-catalyzed HAA protocols are also highly sensitive to α-substitution on the amine partner, and no catalytic solutions exist for α-tertiary γ-arylamine synthesis via this approach. We report a solution to these problems using organophotoredox catalysis, enabling a direct, modular, and sustainable preparation of α-(di)substituted γ-arylamines, including challenging electron-neutral and moderately electron-rich aryl groups. A broad range of functionalities are tolerated, and the reactions can be run on multigram scale in continuous flow. The method is applied to a concise, protecting-group-free synthesis of the blockbuster drug Fingolimod, as well as a phosphonate mimic of its in vivo active form (by iterative α-C-H functionalization of ethanolamine). The reaction can also be sequenced with an intramolecular N-arylation to provide a general and modular access to valuable (spirocyclic) 1,2,3,4-tetrahydroquinolines and 1,2,3,4-tetrahydronaphthyridines. Mechanistic and kinetic studies support an irreversible hydrogen atom transfer activation of the alkylamine by the azidyl radical and some contribution from a radical chain. The reaction is photon-limited and exhibits a zero-order dependence on amine, azide, and photocatalyst, with a first-order dependence on styrene.
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Affiliation(s)
- Hannah
E. Askey
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - James D. Grayson
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Joshua D. Tibbetts
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | | | - Jake M. Holmes
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Gabriele Kociok-Kohn
- Materials
and Chemical Characterisation Facility (MC), University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Gail L. Wrigley
- Oncology
R&D, Research & Early Development, AstraZeneca, Darwin Building, 310, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K.
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9
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Santana CG, Krische MJ. From Hydrogenation to Transfer Hydrogenation to Hydrogen Auto-Transfer in Enantioselective Metal-Catalyzed Carbonyl Reductive Coupling: Past, Present, and Future. ACS Catal 2021; 11:5572-5585. [PMID: 34306816 PMCID: PMC8302072 DOI: 10.1021/acscatal.1c01109] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Atom-efficient processes that occur via addition, redistribution or removal of hydrogen underlie many large volume industrial processes and pervade all segments of chemical industry. Although carbonyl addition is one of the oldest and most broadly utilized methods for C-C bond formation, the delivery of non-stabilized carbanions to carbonyl compounds has relied on premetalated reagents or metallic/organometallic reductants, which pose issues of safety and challenges vis-à-vis large volume implementation. Catalytic carbonyl reductive couplings promoted via hydrogenation, transfer hydrogenation and hydrogen auto-transfer allow abundant unsaturated hydrocarbons to serve as substitutes to organometallic reagents, enabling C-C bond formation in the absence of stoichiometric metals. This perspective (a) highlights past milestones in catalytic hydrogenation, hydrogen transfer and hydrogen auto-transfer, (b) summarizes current methods for catalytic enantioselective carbonyl reductive couplings, and (c) describes future opportunities based on the patterns of reactivity that animate transformations of this type.
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Affiliation(s)
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, Austin, TX 78712, USA
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10
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Laru S, Bhattacharjee S, Singsardar M, Samanta S, Hajra A. Ru(II)-Catalyzed Switchable C-H Alkylation and Spirocyclization of 2-Arylquinoxalines with Maleimides via ortho-C-H Activation. J Org Chem 2021; 86:2784-2795. [PMID: 33444022 DOI: 10.1021/acs.joc.0c02745] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A Ru(II)-catalyzed facile and controllable protocol for C-H alkylation and spirocyclization of 2-arylquinoxalines with maleimides has been achieved under ambient air in high yields. Sequential ortho-C-H activation and C-annulation results in the formation of diverse polyheterocycles containing spiro[indeno[1,2-b]quinoxaline-11,3'-pyrrolidine]-2',5'-diones, which are of potent interest in medicinal chemistry. Mechanistic investigations suggest a reversible cleavage of the ortho-C-H bond in the turnover-limiting step.
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Affiliation(s)
- Sudip Laru
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Suvam Bhattacharjee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Mukta Singsardar
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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11
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Woźniak Ł, Tan JF, Nguyen QH, Madron du Vigné A, Smal V, Cao YX, Cramer N. Catalytic Enantioselective Functionalizations of C–H Bonds by Chiral Iridium Complexes. Chem Rev 2020; 120:10516-10543. [DOI: 10.1021/acs.chemrev.0c00559] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Łukasz Woźniak
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Jin-Fay Tan
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Qui-Hien Nguyen
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Adrien Madron du Vigné
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Vitalii Smal
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Yi-Xuan Cao
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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12
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Verma P, Richter JM, Chekshin N, Qiao JX, Yu JQ. Iridium(I)-Catalyzed α-C(sp 3)-H Alkylation of Saturated Azacycles. J Am Chem Soc 2020; 142:5117-5125. [PMID: 32098471 DOI: 10.1021/jacs.9b12320] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Saturated azacycles are commonly encountered in bioactive compounds and approved therapeutic agents. The development of methods for functionalization of the α-methylene C-H bonds of these highly privileged building blocks is of great importance, especially in drug discovery. While much effort has been dedicated toward this goal by using a directed C-H activation approach, the development of directing groups that are both general as well as practical remains a significant challenge. Herein, the design and development of novel amidoxime directing groups is described for Ir(I)-catalyzed α-C(sp3)-H alkylation of saturated azacycles using readily available olefins as coupling partners. This protocol extends the scope of saturated azacycles to piperidines, azepane, and tetrahydroisoquinoline that are incompatible with our previously reported directing group. A variety of olefin coupling partners, including previously unreactive disubstituted terminal olefins and internal olefins, are compatible with this transformation. The selectivity for a branched α-C(sp3)-alkylation product is also observed for the first time when acrylate is used as the reaction partner. The development of practical, one-step installation and removal protocols further adds to the utility of amidoxime directing groups.
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Affiliation(s)
- Pritha Verma
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jeremy M Richter
- Research & Development, Bristol-Myers Squibb, Hopewell, New Jersey 08534, United States
| | - Nikita Chekshin
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jennifer X Qiao
- Discovery Chemistry, Bristol-Myers Squibb, PO Box 4000, Princeton, New Jersey 08543, United States
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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13
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Fukuyama T, Nishikawa T, Ryu I. Site-Selective C(sp3
)-H Functionalization of Fluorinated Alkanes Driven by Polar Effects Using a Tungstate Photocatalyst. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901135] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takahide Fukuyama
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; 599-8531 Sakai Osaka Japan
| | - Tomohiro Nishikawa
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; 599-8531 Sakai Osaka Japan
| | - Ilhyong Ryu
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; 599-8531 Sakai Osaka Japan
- Department of Applied Chemistry; Graduate School of Science; National Chiao Tung University; 30010 Hsinchu Taiwan
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14
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Ohmura T, Kusaka S, Torigoe T, Suginome M. Iridium‐Catalyzed C(
sp
3
)−H Addition of Methyl Ethers across Intramolecular Carbon–Carbon Double Bonds Giving 2,3‐Dihydrobenzofurans. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900749] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, KyotoUniversity Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Satoshi Kusaka
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, KyotoUniversity Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Takeru Torigoe
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, KyotoUniversity Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, KyotoUniversity Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
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15
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Gonnard L, Guérinot A, Cossy J. Transition metal-catalyzed α-alkylation of amines by C(sp3)‒H bond activation. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Hattori H, Nishimura T. Iridium-Catalyzed Sequential sp
3
C−H Alkylation of an N
-Methyl Group with Alkenes Towards the Synthesis of α-Substituted Amines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801131] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hiroshi Hattori
- Department of Chemistry; Graduate School of Science; Osaka City University, Sumiyoshi; Osaka 558-8585 Japan
| | - Takahiro Nishimura
- Department of Chemistry; Graduate School of Science; Osaka City University, Sumiyoshi; Osaka 558-8585 Japan
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17
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Han Z, Chaowei D, Lice L, Hongfei M, Hongzhong B, Yufeng L. Nickel (II)-Catalyzed efficient aminocarbonylation of unreactive alkanes with formanilides—Exploiting the deformylation behavior of imides. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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18
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Nakamura I, Yamauchi D, Nishimura T. Hydroxoiridium-Catalyzed sp3
C−H Alkylation of Indoline Derivatives with Terminal Alkenes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ikumi Nakamura
- Department of Chemistry; Graduate School of Science; Osaka City University; Sumiyoshi-ku Osaka 558-8585 Japan
| | - Daisuke Yamauchi
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Takahiro Nishimura
- Department of Chemistry; Graduate School of Science; Osaka City University; Sumiyoshi-ku Osaka 558-8585 Japan
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19
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Fukuyama T, Yamada K, Nishikawa T, Ravelli D, Fagnoni M, Ryu I. Site-selectivity in TBADT-photocatalyzed C(sp3)–H Functionalization of Saturated Alcohols and Alkanes. CHEM LETT 2018. [DOI: 10.1246/cl.171068] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takahide Fukuyama
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Keiichi Yamada
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Tomohiro Nishikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Davide Ravelli
- Photo Green Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- Photo Green Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Illhyong Ryu
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
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