1
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Shang W, Zhu L, Li Z, Xu W, Xiong B, Liu Y, Tang KW, Qian PC, Yin SF, Wong WY. Ruthenium-Catalyzed 1,6-Hydroalkylation of para-Quinone Methides with Ketones via the in Situ Activation of C( sp3)-H Bonds. J Org Chem 2023; 88:16196-16215. [PMID: 37955519 DOI: 10.1021/acs.joc.3c01661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
A simple and efficient method for the ruthenium-catalyzed 1,6-hydroalkylation of para-quinone methides (p-QMs) with ketones via the in situ activation of C(sp3)-H bonds has been disclosed. Without the need for preactivation of the substrates and oxidant, a broad range of p-QMs and ketones are well tolerated, producing the expected 1,6-hydroalkylation products with moderate to good yields. Step-by-step control experiments and DFT calculation were conducted systematically to gain insights for the plausible reaction mechanism. This finding may have potential application in the selective diarylmethylation of ketones at the α-C position in organic synthesis.
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Affiliation(s)
- Wenli Shang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Longzhi Zhu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Zikang Li
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, P. R. China
| | - Weifeng Xu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Biquan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, P. R. China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Peng-Cheng Qian
- Key Laboratory of Environmental Functional Materials Technology and Application of Wenzhou City, Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Shuang-Feng Yin
- Advanced Catalytic Engineering Research Center of the Ministry of Education, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
- College of Science, Central South University of Forestry and Technology, Changsha 410004, P. R. China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, P. R. China
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2
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Takekawa Y, Nakagawa M, Nagao K, Ohmiya H. A Quadruple Catalysis Enabling Intermolecular Branch-Selective Hydroacylation of Styrenes. Chemistry 2023; 29:e202301484. [PMID: 37260048 DOI: 10.1002/chem.202301484] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/02/2023]
Abstract
A quadruple N-heterocyclic carbene/cobalt/photoredox/Brønsted base catalysis to realize branch-selective hydroacylation of styrenes with aromatic and aliphatic aldehydes is demonstrated. This protocol allows access to branched ketones from readily available materials in an atom-economical manner. The quadruple catalysis can transfer a formyl hydrogen of aldehydes as a hydrogen radical equivalent onto the terminal carbon of an alkene by controlled electron and proton transfers.
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Affiliation(s)
- Yunosuke Takekawa
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Masanari Nakagawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Kazunori Nagao
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Hirohisa Ohmiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
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3
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Tao X, Wang Q, Kong L, Ni S, Pan Y, Wang Y. Branched-Selective Hydroacylation of Alkenes via Photoredox Cobalt and N-Heterocyclic Carbene Cooperative Triple Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Xiangzhang Tao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Qing Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Lingyu Kong
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shengyang Ni
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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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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Kim J, Jang J, Lee Y, Shin K. Exogenous Ligand-Free NiH-Catalyzed Hydroacylation of Aryl Alkenes with Aroyl Fluorides. Org Lett 2022; 24:5412-5416. [PMID: 35839322 DOI: 10.1021/acs.orglett.2c02110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Acyl fluorides have emerged as efficient acyl group donors, but these attractive reagents have rarely been utilized in transition-metal-catalyzed hydroacylation. Herein we report a nickel hydride-catalyzed hydroacylation of aryl alkenes using aroyl fluorides. The reaction proceeds without recourse to an exogenous ligand under mild conditions. The synthetic utility of the present method is demonstrated by the glovebox-free, gram-scale reaction and the late-stage derivatization of complex molecules containing pharmaceutical frameworks.
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Affiliation(s)
- Jihye Kim
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jieun Jang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yoonho Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kwangmin Shin
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
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6
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Griffiths OM, Esteves HA, Chen Y, Sowa K, May OS, Morse P, Blakemore DC, Ley SV. Photoredox-Catalyzed Dehydrogenative Csp 3-Csp 2 Cross-Coupling of Alkylarenes to Aldehydes in Flow. J Org Chem 2021; 86:13559-13571. [PMID: 34524825 DOI: 10.1021/acs.joc.1c01621] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Executing photoredox reactions in flow offers solutions to frequently encountered issues regarding reproducibility, reaction time, and scale-up. Here, we report the transfer of a photoredox-catalyzed benzylic coupling of alkylarenes to aldehydes to a flow chemistry setting leading to improvements in terms of higher concentration, shorter residence times, better yields, ease of catalyst preparation, and enhanced substrate scope. Its applicability has been demonstrated by a multi-gram-scale reaction using high-power light-emitting diodes (LEDs), late-stage functionalization of selected active pharmaceutical ingredients (APIs), and also a photocatalyst recycling method.
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Affiliation(s)
- Oliver M Griffiths
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Henrique A Esteves
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Yiding Chen
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Karin Sowa
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K.,Department of Chemistry, University of Münster, 48149 Münster, Germany
| | - Oliver S May
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
| | - Peter Morse
- Medicine Design, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - David C Blakemore
- Medicine Design, Pfizer, Inc., Groton, Connecticut 06340, United States
| | - Steven V Ley
- Yusuf Hamied Department of Chemistry, University of Cambridge, CB2 1EW Cambridge, U.K
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7
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Ruthenium−p-cymene complexes with acylthiourea, and its heterogenized form on graphene oxide act as catalysts for the synthesis of quinoxaline derivatives. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121933] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Seo S, Gao M, Paffenholz E, Willis MC. Sequential Catalytic Functionalization of Aryltriazenyl Aldehydes for the Synthesis of Complex Benzenes. ACS Catal 2021; 11:6091-6098. [PMID: 34306807 PMCID: PMC8291607 DOI: 10.1021/acscatal.1c01722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 04/29/2021] [Indexed: 11/29/2022]
Abstract
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We demonstrate that
aryltriazenes can promote three distinctive
types of C–H functionalization reactions, allowing the preparation
of complex benzene molecules with diverse substitution patterns. 2-Triazenylbenzaldehydes
are shown to be efficient substrates for Rh(I)-catalyzed intermolecular
alkyne hydroacylation reactions. The resulting triazene-substituted
ketone products can then undergo either a Rh(III)-catalyzed C–H
activation, or an electrophilic aromatic substitution reaction, achieving
multifunctionalization of the benzene core. Subsequent triazene derivatization
provides traceless products.
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Affiliation(s)
- Sangwon Seo
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Ming Gao
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Eva Paffenholz
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Michael C. Willis
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
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9
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Zhang B, He J, Li Y, Song T, Fang Y, Li C. Cobalt-Catalyzed Markovnikov-Selective Radical Hydroacylation of Unactivated Alkenes with Acylphosphonates. J Am Chem Soc 2021; 143:4955-4961. [PMID: 33783191 DOI: 10.1021/jacs.1c02629] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Acylphosphonates having the 5,5-dimethyl-1,3,2-dioxophosphinanyl skeleton are developed as efficient intermolecular radical acylation reagents, which enable the cobalt-catalyzed Markovnikov hydroacylation of unactivated alkenes at room temperature under mild conditions. The protocol exhibits broad substrate scope and wide functional group compatibility, providing branched ketones in satisfactory yields. A mechanism involving the Co-H mediated hydrogen atom transfer and subsequent trapping of alkyl radicals by acylphosphonates is proposed.
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Affiliation(s)
- Benxiang Zhang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jiayan He
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yi Li
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Tao Song
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yewen Fang
- School of Materials and Chemical Engineering, Ningbo University of Technology, No. 201 Fenghua Road, Ningbo 315211, China
| | - Chaozhong Li
- School of Materials and Chemical Engineering, Ningbo University of Technology, No. 201 Fenghua Road, Ningbo 315211, China.,Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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10
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Zheng L, Xia PJ, Zhao QL, Qian YE, Jiang WN, Xiang HY, Yang H. Photocatalytic Hydroacylation of Alkenes by Directly Using Acyl Oximes. J Org Chem 2020; 85:11989-11996. [DOI: 10.1021/acs.joc.0c01818] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Lan Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Peng-Ju Xia
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Qing-Lan Zhao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yu-En Qian
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | | | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
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11
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Chen Z, Lu F, Yuan F, Sun J, Du L, Li Z, Gao M, Shi R, Lei A. Photocatalytic decarboxylative coupling between α-oxocarboxylicacids and alkenes. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9616-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Ueda Y, Iwai T, Sawamura M. Nickel‐Copper‐Catalyzed Hydroacylation of Vinylarenes with Acyl Fluorides and Hydrosilanes. Chemistry 2019; 25:9410-9414. [DOI: 10.1002/chem.201900822] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/02/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Yusuke Ueda
- Department of ChemistryFaculty of ScienceHokkaido University 060-0810 Sapporo Japan
| | - Tomohiro Iwai
- Department of ChemistryFaculty of ScienceHokkaido University 060-0810 Sapporo Japan
| | - Masaya Sawamura
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD)Hokkaido University Kita 21, Nishi 10, Kita-ku 001-0021 Sapporo Japan
- Department of ChemistryFaculty of ScienceHokkaido University 060-0810 Sapporo Japan
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13
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Li ZY, Chaminda Lakmal HH, Cui X. Enabling Catalytic Arene C–H Amidomethylation via Bis(tosylamido)methane as a Sustainable Formaldimine Releaser. Org Lett 2019; 21:3735-3740. [DOI: 10.1021/acs.orglett.9b01183] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhong-Yuan Li
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | | | - Xin Cui
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
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14
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Straker RN, Formica M, Lupton JD, Niu J, Willis MC. An enamine controlling group for rhodium-catalyzed intermolecular hydroacylation. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Lee H, Mane MV, Ryu H, Sahu D, Baik MH, Yi CS. Experimental and Computational Study of the ( Z)-Selective Formation of Trisubstituted Olefins and Benzo-Fused Oxacycles from the Ruthenium-Catalyzed Dehydrative C-H Coupling of Phenols with Ketones. J Am Chem Soc 2018; 140:10289-10296. [PMID: 30032611 DOI: 10.1021/jacs.8b05875] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The cationic Ru-H complex was found to be an effective catalyst for the dehydrative C-H coupling of phenols with ketones to form the trisubstituted olefin products. The coupling of phenol with linear ketones led to highly stereoselective formation of the ( Z)-olefin products. The dehydrative coupling of phenol with enones and diones efficiently formed the benzopyrene and related oxacyclic derivatives. The reaction of 3,5-dimethoxyphenol with cyclohexanone-2,2,6,6- d4 showed a significant H/D exchange to both vinyl and α-CH2 positions on the olefin product (72-75% D). A significant carbon isotope effect was observed on the ortho-arene carbon of the olefin product. The free energies of intermediate species for the entire catalytic cycle were successfully computed by using the DFT method. The DFT study revealed that the E/ Z stereoselectivity is a result of the energy difference in the insertion step of ortho-metalated phenol to an enol form of the ketone substrate (ΔΔ E = 9.6 kcal/mol). The coupling method provides a direct catalytic C-H olefination method for ketones to form trisubstituted olefins without employing any reactive reagents or forming any wasteful byproducts.
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Affiliation(s)
- Hanbin Lee
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Manoj V Mane
- Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea
| | - Ho Ryu
- Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea.,Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea
| | - Debashis Sahu
- Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations , Institute for Basic Science (IBS) , Daejeon 34141 , Republic of Korea.,Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea
| | - Chae S Yi
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
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16
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Mechanism for Co(dppp)-catalyzed regioselective intermolecular hydroacylation of 1,3-dienes and benzaldehydes: Insights from density functional calculations. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Barwick-Silk J, Hardy S, Willis MC, Weller AS. Rh(DPEPhos)-Catalyzed Alkyne Hydroacylation Using β-Carbonyl-Substituted Aldehydes: Mechanistic Insight Leads to Low Catalyst Loadings that Enables Selective Catalysis on Gram-Scale. J Am Chem Soc 2018; 140:7347-7357. [PMID: 29763563 DOI: 10.1021/jacs.8b04086] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The detailed mechanism of the hydroacylation of β-amido-aldehyde, 2,2-dimethyl-3-morpholino-3-oxopropanal, with 1-octyne using [Rh( cis-κ2-P,P-DPEPhos)(acetone)2][BArF4]-based catalysts, is described [ArF = (CF3)2C6H3]. A rich mechanistic landscape of competing and interconnected hydroacylation and cyclotrimerization processes is revealed. An acyl-hydride complex, arising from oxidative addition of aldehyde, is the persistent resting state during hydroacylation, and quaternary substitution at the β-amido-aldehyde strongly disfavors decarbonylation. Initial rate, KIE, and labeling studies suggest that the migratory insertion is turnover-limiting as well as selectivity determining for linear/branched products. When the concentration of free aldehyde approaches zero at the later stages of catalysis alkyne cyclotrimerization becomes competitive, to form trisubstituted hexylarenes. At this point, the remaining acyl-hydride turns over in hydroacylation and the free alkyne is now effectively in excess, and the resting state moves to a metallacyclopentadiene and eventually to a dormant α-pyran-bound catalyst complex. Cyclotrimerization thus only becomes competitive when there is no aldehyde present in solution, and as aldehyde binds so strongly to form acyl-hydride when this happens will directly correlate to catalyst loading: with low loadings allowing for free aldehyde to be present for longer, and thus higher selectivites to be obtained. Reducing the catalyst loading from 20 mol % to 0.5 mol % thus leads to a selectivity increase from 96% to ∼100%. An optimized hydroacylation reaction is described that delivers gram scale of product, at essentially quantitative levels, using no excess of either reagent, at very low catalyst loadings, using minimal solvent, with virtually no workup.
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Affiliation(s)
- James Barwick-Silk
- Department of Chemistry, Chemistry Research Laboratories , University of Oxford , Mansfield Road , Oxford OX1 4TA , U.K
| | - Simon Hardy
- Early Chemical Development , Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca , Macclesfield SK10 2NA , U.K
| | - Michael C Willis
- Department of Chemistry, Chemistry Research Laboratories , University of Oxford , Mansfield Road , Oxford OX1 4TA , U.K
| | - Andrew S Weller
- Department of Chemistry, Chemistry Research Laboratories , University of Oxford , Mansfield Road , Oxford OX1 4TA , U.K
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18
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Yang Y, Wang L, Chen Y, Dai Y, Sun Z. One-pot synthesis of α,α-disubstituted Aryl-1-ethanones via the Wittig-Horner reaction. PHOSPHORUS SULFUR 2018. [DOI: 10.1080/10426507.2017.1415899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yunxia Yang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Le Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Yuan Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Yiru Dai
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Zhihua Sun
- Department of Chemistry, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
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19
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Li T, Xu BH, Zhu DP, Wang YF, Zhang SJ. Cobalt-catalyzed intermolecular hydroacylation of aldehydes: initiation of hydride transfer enables turnover. Org Chem Front 2018. [DOI: 10.1039/c8qo00337h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Intermolecular hydroacylation of aldehydes catalyzed by a low-valent cobalt system was developed. Mechanistic studies disclosed that the rate of the insertion step is significantly promoted in the presence of iPr2NEt, which functions as an initiator of hydride transfer.
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Affiliation(s)
- Ting Li
- Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Bao-Hua Xu
- Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - De-Ping Zhu
- Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Yao-Feng Wang
- Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Suo-Jiang Zhang
- Key Laboratory of Green Process and Engineering
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
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20
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Guo R, Zhang G. Expedient Synthesis of 1,5-Diketones by Rhodium-Catalyzed Hydroacylation Enabled by C–C Bond Cleavage. J Am Chem Soc 2017; 139:12891-12894. [DOI: 10.1021/jacs.7b05427] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, University of
Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, University of
Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai 200032, P. R. China
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21
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Coxon TJ, Fernández M, Barwick-Silk J, McKay AI, Britton LE, Weller AS, Willis MC. Exploiting Carbonyl Groups to Control Intermolecular Rhodium-Catalyzed Alkene and Alkyne Hydroacylation. J Am Chem Soc 2017; 139:10142-10149. [DOI: 10.1021/jacs.7b05713] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Thomas J. Coxon
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Maitane Fernández
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - James Barwick-Silk
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Alasdair I. McKay
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Louisa E. Britton
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Andrew S. Weller
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Michael C. Willis
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
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22
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Zhou Y, Bandar JS, Buchwald SL. Enantioselective CuH-Catalyzed Hydroacylation Employing Unsaturated Carboxylic Acids as Aldehyde Surrogates. J Am Chem Soc 2017; 139:8126-8129. [PMID: 28565905 PMCID: PMC5587210 DOI: 10.1021/jacs.7b04937] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The direct asymmetric copper hydride (CuH)-catalyzed coupling of α,β-unsaturated carboxylic acids to aryl alkenes to access chiral α-aryl dialkyl ketones is reported. A variety of substrate substitution patterns, sensitive functional groups, and heterocycles are tolerated in this reaction, which significantly expands the range of accessible products compared with existing hydroacylation methodology. Although mechanistic studies are ongoing, we propose that CuH-catalyzed silylation of unsaturated acids occurs to access a uniquely effective acyl electrophilic coupling partner.
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Affiliation(s)
- Yujing Zhou
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Jeffrey S. Bandar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Stephen L. Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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23
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Liu SY, Xu LY, Liu CY, Ren ZG, Young DJ, Lang JP. Efficient alkylation of ketones with primary alcohols catalyzed by ruthenium(II)/P,N ligand complexes. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Jhuang HS, Reddy DM, Chen TH, Lee CF. DTBP/TBHP-Promoted Hydroacylation of Unactivated Alkenes. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600423] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huei-Shu Jhuang
- Department of Chemistry; National Chung Hsing University; Taichung Taiwan 402 R.O.C
| | | | - Te-Hsuan Chen
- Department of Chemistry; National Chung Hsing University; Taichung Taiwan 402 R.O.C
| | - Chin-Fa Lee
- Department of Chemistry; National Chung Hsing University; Taichung Taiwan 402 R.O.C
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25
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Bouisseau A, Glancy J, Willis MC. Two-Component Assembly of Thiochroman-4-ones and Tetrahydrothiopyran-4-ones Using a Rhodium-Catalyzed Alkyne Hydroacylation/Thio-Conjugate-Addition Sequence. Org Lett 2016; 18:5676-5679. [PMID: 27779887 DOI: 10.1021/acs.orglett.6b02909] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
β'-Thio-substituted-enones, assembled from the combination of β-tert-butylthio-substituted aldehydes and alkynes, using rhodium catalysis, are shown to smoothly undergo in situ intramolecular S-conjugate addition to deliver a range of S-heterocycles in a one-pot process. Aryl, alkenyl, and alkyl aldehydes can all be employed, to provide thiochroman-4-ones, hexahydro-4H-thiochromen-4-ones, and tetrahydrothiopyran-4-ones, respectively. A variety of in situ oxidations are also performed, allowing access to S,S-dioxide derivatives, as well as unsaturated variants.
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Affiliation(s)
- Anaïs Bouisseau
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory , Mansfield Road, Oxford, OX1 3TA, U.K
| | - John Glancy
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory , Mansfield Road, Oxford, OX1 3TA, U.K
| | - Michael C Willis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory , Mansfield Road, Oxford, OX1 3TA, U.K
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26
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Bouisseau A, Gao M, Willis MC. Traceless Rhodium-Catalyzed Hydroacylation Using Alkyl Aldehydes: The Enantioselective Synthesis of β-Aryl Ketones. Chemistry 2016; 22:15624-15628. [PMID: 27666437 PMCID: PMC5396316 DOI: 10.1002/chem.201604035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Indexed: 11/06/2022]
Abstract
A one-pot three-step sequence involving Rh-catalyzed alkene hydroacylation, sulfide elimination and Rh-catalyzed aryl boronic acid conjugate addition gave products of traceless chelation-controlled hydroacylation employing alkyl aldehydes. The stereodefined β-aryl ketones were obtained in good yields with excellent control of enantioselectivity. Good variation of all three reaction components is possible.
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Affiliation(s)
- Anaïs Bouisseau
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Ming Gao
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Michael C Willis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
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