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Shan Y, Zhang X, Liu G, Li J, Liu Y, Wang J, Chen D. Cyanation with isocyanides: recent advances and perspectives. Chem Commun (Camb) 2024; 60:1546-1562. [PMID: 38240334 DOI: 10.1039/d3cc05880h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Cyanation has attracted considerable attention in organic synthesis because nitriles are key structural motifs in numerous important dyes, agrochemicals, natural products and drug molecules. As the fourth generation of cyanating reagents, isocyanides occupy a prominent place in the synthesis of nitriles due to their favorable stability, easy operability and high reactivity. In recent years, three types of cyanation with isocyanides have been established: the cleavage of the C-NC bond of tertiary alkyl isocyanides (Type I), the rearrangement of aryl isocyanides with azides (Type II), and the reductive cyanation of ketones with α-acidic isocyanides (Type III). This review focuses on advances in cyanation with isocyanides with an emphasis on reaction scope, limitations and mechanisms, which could reveal their remarkable value and superiority for accessing various nitriles. In addition, the future development prospects of this specific field are also introduced. We believe that this feature article will serve as a comprehensive tool to navigate cyanation with isocyanides across the vast area of synthetic chemistry.
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Affiliation(s)
- Yingying Shan
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Xiuhua Zhang
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Gongle Liu
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Jianming Li
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Yongwei Liu
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Jia Wang
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Dianpeng Chen
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
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2
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Tendera L, Kuehn L, Marder TB, Radius U. On the Reactivity of a NHC Nickel Bis-Boryl Complex: Reductive Elimination and Formation of Mono-Boryl Complexes. Chemistry 2023; 29:e202302310. [PMID: 37551752 DOI: 10.1002/chem.202302310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/09/2023]
Abstract
The synthesis of the first terminal mono-boryl complexes of nickel, which are not stabilized by a pincer ligand, is reported. The reaction of the nickel bis-boryl complex cis-[Ni(i Pr2 ImMe )2 (Bcat)2 ] 1 (cat=1,2-O2 C6 H4 ) with the small donor ligand PMe3 led to a complete ligand exchange at nickel with reductive elimination of B2 cat2 and formation of the bis-NHC adduct [B2 cat2 ⋅ (i Pr2 ImMe )2 ] 3 and [Ni(PMe3 )4 ] 2 as the metal-containing species. Electrophilic attack of MeI on complex 1 or ligand dismutation of 1 with trans-[Ni(i Pr2 ImMe )2 Br2 ] led to loss of only one boryl ligand of 1 and afforded the nickel mono-boryl complexes trans-[Ni(i Pr2 ImMe )2 (Bcat)Br] 4 a and trans-[Ni(i Pr2 ImMe )2 (Bcat)I] 4 b.
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Affiliation(s)
- Lukas Tendera
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Laura Kuehn
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Udo Radius
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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3
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Tendera L, Fantuzzi F, Marder TB, Radius U. Nickel boryl complexes and nickel-catalyzed alkyne borylation. Chem Sci 2023; 14:2215-2228. [PMID: 36845942 PMCID: PMC9945561 DOI: 10.1039/d2sc04690c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/27/2023] [Indexed: 01/28/2023] Open
Abstract
The first nickel bis-boryl complexes cis-[Ni( i Pr2ImMe)2(Bcat)2], cis-[Ni( i Pr2ImMe)2(Bpin)2] and cis-[Ni( i Pr2ImMe)2(Beg)2] are reported, which were prepared via the reaction of a source of [Ni( i Pr2ImMe)2] with the diboron(4) compounds B2cat2, B2pin2 and B2eg2 ( i Pr2ImMe = 1,3-di-iso-propyl-4,5-dimethylimidazolin-2-ylidene; B2cat2 = bis(catecholato)diboron; B2pin2 = bis(pinacolato)diboron; B2eg2 = bis(ethylene glycolato)diboron). X-ray diffraction and DFT calculations strongly suggest that a delocalized, multicenter bonding scheme dictates the bonding situation of the NiB2 moiety in these square planar complexes, reminiscent of the bonding situation of "non-classical" H2 complexes. [Ni( i Pr2ImMe)2] also efficiently catalyzes the diboration of alkynes using B2cat2 as the boron source under mild conditions. In contrast to the known platinum-catalyzed diboration, the nickel system follows a different mechanistic pathway, which not only provides the 1,2-borylation product in excellent yields, but also provides an efficient approach to other products such as C-C coupled borylation products or rare tetra-borylated compounds. The mechanism of the nickel-catalyzed alkyne borylation was examined by means of stoichiometric reactions and DFT calculations. Oxidative addition of the diboron reagent to nickel is not dominant; the first steps of the catalytic cycle are coordination of the alkyne to [Ni( i Pr2ImMe)2] and subsequent borylation at the coordinated and, thus, activated alkyne to yield complexes of the type [Ni(NHC)2(η2-cis-(Bcat)(R)C[double bond, length as m-dash]C(R)(Bcat))], exemplified by the isolation and structural characterization of [Ni( i Pr2ImMe)2(η2-cis-(Bcat)(Me)C[double bond, length as m-dash]C(Me)(Bcat))] and [Ni( i Pr2ImMe)2(η2-cis-(Bcat)(H7C3)C[double bond, length as m-dash]C(C3H7)(Bcat))].
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Affiliation(s)
- Lukas Tendera
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Felipe Fantuzzi
- School of Chemistry and Forensic Science, University of KentPark Wood RdCanterburyCT2 7NHUK
| | - Todd B. Marder
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität WürzburgAm Hubland97074 WürzburgGermany,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität WürzburgAm Hubland97074 WürzburgGermany
| | - Udo Radius
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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4
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Shambhavi CN, Jeganmohan M. Ru(II)-Catalyzed C-H Alkenylation of Benzimidates with Unactivated Olefins: A Route to ortho-Alkenylated Benzonitriles. Org Lett 2023; 25:358-363. [PMID: 36606744 DOI: 10.1021/acs.orglett.2c04036] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A Ru(II)-catalyzed C-H alkenylation of benzimidates with unactivated alkenes providing ortho-alkenylated benzonitriles in good to excellent yields in a highly regio- and stereoselective manner is described. In the reaction, an imidate group converted into a nitrile under the reaction conditions. The alkenylation reaction was compatible with various substituted benzimidates as well as functionalized unactivated olefins, including ibuprofen-, neproxen-, coumarin-, and cholesterol-substituted alkenes. A feasible reaction mechanism was proposed to account for the present alkenylation reaction.
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Affiliation(s)
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
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5
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Rakshit A, Dhara HN, Sahoo AK, Patel BK. The Renaissance of Organo Nitriles in Organic Synthesis. Chem Asian J 2022; 17:e202200792. [PMID: 36047749 DOI: 10.1002/asia.202200792] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/31/2022] [Indexed: 11/11/2022]
Abstract
In the arena of functional group-oriented organic synthesis, the nitrile or cyano functionality is of immense importance. The presence of nucleophilic N -atom, π-coordinating ability of the triple bond, and electrophilic C-center imparts unique and interesting reactivity. Owing to the ability of the nitrile to transform into various other functional groups or intermediates, the chemistry is very rich and diverse. In particular, the involvement of nitrile in numerous organic reactions such as inter- or intramolecular alkyne insertion, [2 + 2 + 2] cycloaddition with alkynes, [3 + 2] cycloaddition with azides, [4 + 2] cycloaddition with diene allow the synthesis of many important carbocycles and heterocycles. Furthermore, the nitrile serves as a directing group in many C-H bond functionalization reactions to introduce diverse functionality and participate as a radical acceptor in radical cascade strategies to obtain a large variety of functional molecules. This review mainly focuses on the reactivity and diverse synthetic application of the nitrile including C-H bond functionalization, alkyne insertion, cycloaddition, and thermal or photochemical cascade strategy. The objective of the current review aims at bringing out the striking collection of various nitrile-triggered organic transformations.
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Affiliation(s)
- Amitava Rakshit
- IIT Guwahati: Indian Institute of Technology Guwahati, Chemistry, INDIA
| | | | | | - Bhisma K Patel
- Indian Institute of Technology Guwahati, Chemistry, North Guwahati-781 039, 781 039, Guwahati, INDIA
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6
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Li C, Swenson DC, MacGillivray LR. Programming Rapid Functional Group Diversification into a Solid‐State Reaction: Aryl Nitriles for Self‐Assembly, Click Reactivity, and Discovery of Coexisting Supramolecular Synthons. Chemistry 2022; 28:e202200978. [DOI: 10.1002/chem.202200978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Changan Li
- Department of Chemistry University of Iowa Iowa City IA 52242–1294 USA
| | - Dale C. Swenson
- Department of Chemistry University of Iowa Iowa City IA 52242–1294 USA
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7
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Dhara HN, Rakshit A, Alam T, Patel BK. Metal-catalyzed reactions of organic nitriles and boronic acids to access diverse functionality. Org Biomol Chem 2022; 20:4243-4277. [PMID: 35552581 DOI: 10.1039/d2ob00288d] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The nitrile or cyano (-CN) group is one of the most appreciated and effective functional groups in organic synthesis, having a polar unsaturated C-N triple bond. Despite sufficient stability and being intrinsically inert, the nitrile group can be easily transformed into many other functional groups, such as amines, carboxylic acids, ketones, etc. which makes it a vital group in organic synthesis. On the other hand, despite several boronic acids having a low level of genotoxicity, they have found wide applicability in the field of organic synthesis, especially in transition metal-catalyzed cross-coupling reactions. Recently, transition-metal-catalyzed cascade additions or addition/cyclization processes of boronic acids to the nitrile group open up exciting and useful strategies to prepare a variety of functional molecules through the formation of C-C, C-N and CO bonds. Boronic acids can be added to the cyano functionality through catalytic carbometallation or through a radical cascade process to provide newer pathways for the rapid construction of various important acyclic ketones or amides, carbamidines, carbocycles and N,O-heterocycles. The present review focuses on various transition-metal-catalyzed additions of boronic acids via carbometallation or radical cascade processes using the cyano group as an acceptor.
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Affiliation(s)
- Hirendra Nath Dhara
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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8
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Das P, Rahaman Molla M, Kumar A, Thakur R. o-Cyanobenzoate: A Recyclable and Reusable Stereo-directing Group for β-O-Glycosylation via Pd(0)-catalyzed Ferrier Rearrangement. Chem Asian J 2021; 17:e202101156. [PMID: 34866348 DOI: 10.1002/asia.202101156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/13/2021] [Indexed: 11/11/2022]
Abstract
Inner sphere Tsuji-Trost reaction has found recent application for β-selective Ferrier rearrangement of glycal substrates with alcohol nucleophiles. Herein, we report an efficient and stereoselective synthesis of 2,3-dideoxy-β-O-glycosides from C3-(o-cyanobenzoate) ester protected glycal donors via Ferrier rearrangement under Pd(0)-catalyzed Tsuji-Trost conditions. The synthesized donors indeed reacted with a variety of acceptors to afford the corresponding glycosides in good yields and excellent β-stereoselectivity. The stereochemical outcome of the reactions has been found to be independent of the nature of protecting groups or conformational flexibility of the glycal donors. Furthermore, regeneration of ortho-cyanobenzoic acid post rearrangement makes it a recyclable and reusable stereodirecting group. A preliminary mechanistic study demonstrates the importance of cyano-group for the observed rearrangement and stereoselectivity. Incorporation of the directing group on the benzoate ester has altered the reactivity of the ester group as a leaving group for Tsuji-Trost as well as Ferrier Rearrangement pathway.
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Affiliation(s)
- Pradip Das
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, India
| | - Mosidur Rahaman Molla
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology Patna, Patna, 801106, India
| | - Rima Thakur
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, India
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9
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Kim D, Yoo H, Park MH, Kim Y, Chuang GJ, Yoo K, Kim D, Kim HJ, Kim M. Transformation of
tert
‐Butyl Amide Directing Groups to Nitriles in Iridium‐Catalyzed C−H Bond Functionalizations. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Dopil Kim
- Department of Chemistry Chungbuk National University Cheongju 28644 Republic of Korea
| | - Haneul Yoo
- Department of Chemistry Chungbuk National University Cheongju 28644 Republic of Korea
| | - Myung Hwan Park
- Department of Chemistry Education Chungbuk National University Cheongju 28644 Republic of Korea
| | - Youngjo Kim
- Department of Chemistry Chungbuk National University Cheongju 28644 Republic of Korea
| | - Gary Jing Chuang
- Department of Chemistry Chung Yuan Christian University Taoyuan 32023 Taiwan
| | - Kwangho Yoo
- Inorganic Chemistry I Ruhr-Universitat Bochum Bochum 44780 Germany
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalization Institute for Basic Science Daejeon 34141 Republic of Korea
| | - Hyun Jin Kim
- Innovative Therapeutic Research Center Therapeutics and Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) Daejeon 34114 Republic of Korea
| | - Min Kim
- Department of Chemistry Chungbuk National University Cheongju 28644 Republic of Korea
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10
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Paul N, Patra T, Maiti D. Recent Developments in Hydrodecyanation and Decyanative Functionalization Reactions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nilanjan Paul
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi Telangana 502285 India
| | - Tuhin Patra
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science Tokyo Institute of Technology Tokyo 152-8550 Japan
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11
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Bose SK, Mao L, Kuehn L, Radius U, Nekvinda J, Santos WL, Westcott SA, Steel PG, Marder TB. First-Row d-Block Element-Catalyzed Carbon-Boron Bond Formation and Related Processes. Chem Rev 2021; 121:13238-13341. [PMID: 34618418 DOI: 10.1021/acs.chemrev.1c00255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon-boron bond into a carbon-X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon-boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon-boron bonds.
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Affiliation(s)
- Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India
| | - Lujia Mao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, 571199 Haikou, Hainan, P. R. China
| | - Laura Kuehn
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Jan Nekvinda
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Patrick G Steel
- Department of Chemistry, University of Durham, Science Laboratories South Road, Durham DH1 3LE, U.K
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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12
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Sengupta A, Sarkar P, Maity S, Basu S, Ghosh P, Rudra S, Mukhopadhyay C. Synthesis of δ,δ‐Diaryl‐α‐cyanoacrylamides and δ,δ‐Diarylallylidiene Malononitriles by Pd(OAc)
2
Catalyzed Mizoroki‐Heck Reaction. ChemistrySelect 2021. [DOI: 10.1002/slct.202103376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ayon Sengupta
- Department of Chemistry University of Calcutta 92 APC Road Kolkata 700009 India
- TCG Lifesciences Pvt.Ltd., BN 7, Sector V, Salt Lake City, s Kolkata 700091 India
| | - Piyali Sarkar
- Department of Chemistry University of Calcutta 92 APC Road Kolkata 700009 India
| | - Suvendu Maity
- Department of Chemistry R. K. Mission Residential College, Narendrapur Kolkata 700103 India
| | - Soumyadip Basu
- Department of Chemistry University of Calcutta 92 APC Road Kolkata 700009 India
| | - Prasanta Ghosh
- Department of Chemistry R. K. Mission Residential College, Narendrapur Kolkata 700103 India
| | - Sonali Rudra
- TCG Lifesciences Pvt.Ltd., BN 7, Sector V, Salt Lake City, s Kolkata 700091 India
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13
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Faarasse S, El Brahmi N, Guillaumet G, El Kazzouli S. Regioselective C-H Functionalization of the Six-Membered Ring of the 6,5-Fused Heterocyclic Systems: An Overview. Molecules 2021; 26:5763. [PMID: 34641306 PMCID: PMC8510187 DOI: 10.3390/molecules26195763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022] Open
Abstract
The regioselective C-H functionalization of the five-membered ring of the 6,5-fused heterocyclic systems is nowadays well documented due to its high reactivity compared to the six-membered ring. So, developing new procedures of C-H functionalization of the six-membered ring "by thinking out of the box" is extremely challenging, which explains the limited number of reports published to date. This review paper aims to highlight advances achieved in this emerging chemistry research and discusses recently reported methods.
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Affiliation(s)
- Soukaina Faarasse
- Euromed Research Center, Euromed Faculty of Pharmacy, Euromed University of Fes, Route de Meknes, Fez 30000, Morocco; (S.F.); (N.E.B.); (G.G.)
- Institute of Organic and Analytical Chemistry, University of Orleans, UMR CNRS 7311, BP 6759, CEDEX 2, 45067 Orleans, France
| | - Nabil El Brahmi
- Euromed Research Center, Euromed Faculty of Pharmacy, Euromed University of Fes, Route de Meknes, Fez 30000, Morocco; (S.F.); (N.E.B.); (G.G.)
| | - Gérald Guillaumet
- Euromed Research Center, Euromed Faculty of Pharmacy, Euromed University of Fes, Route de Meknes, Fez 30000, Morocco; (S.F.); (N.E.B.); (G.G.)
- Institute of Organic and Analytical Chemistry, University of Orleans, UMR CNRS 7311, BP 6759, CEDEX 2, 45067 Orleans, France
| | - Saïd El Kazzouli
- Euromed Research Center, Euromed Faculty of Pharmacy, Euromed University of Fes, Route de Meknes, Fez 30000, Morocco; (S.F.); (N.E.B.); (G.G.)
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14
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Ouyang W, Cai X, Chen X, Wang J, Rao J, Gao Y, Huo Y, Chen Q, Li X. Sequential C-H activation enabled expedient delivery of polyfunctional arenes. Chem Commun (Camb) 2021; 57:8075-8078. [PMID: 34296709 DOI: 10.1039/d1cc03243g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modular construction of polyfunctional arenes from abundant feedstocks stands as an unremitting pursue in synthetic chemistry, accelerating the discovery of drugs and materials. Herein, using the multiple C-H activation strategy with versatile imidate esters, the expedient delivery of molecular libraries of densely functionalized sulfur-containing arenes was achieved, which enabled the concise construction of biologically active molecules, such as Bipenamol.
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Affiliation(s)
- Wensen Ouyang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Xiaoqing Cai
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Xiaojian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jie Wang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jianhang Rao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
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15
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Ohmatsu K, Morita Y, Kiyokawa M, Ooi T. Catalytic Asymmetric Cyanoalkylation of Electron-Deficient Olefins with Potassium Cyanide and Alkyl Halides. J Am Chem Soc 2021; 143:11218-11224. [PMID: 34270904 DOI: 10.1021/jacs.1c05380] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The stereoselective cyanoalkylation of electron-deficient olefins with potassium cyanide and alkyl halides was developed based on the utilization of modular chiral 1,2,3-triazolium salts featuring a hydrogen bond-donor ability as catalysts. The reaction involving multiple carbon-carbon bond formations proceeds via the enantioselective conjugate addition of a cyanide ion and the consecutive catalyst-controlled diastereoselective alkylation of intermediary chiral triazolium enolates. Control experiments revealed that the use of a properly tuned chiral triazolium ion as a catalyst and the presence of the cyano functionality in the intermediary enolate are of crucial importance for achieving high levels of acyclic absolute and relative stereocontrol.
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Affiliation(s)
- Kohsuke Ohmatsu
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
| | - Yusuke Morita
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
| | - Mari Kiyokawa
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
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16
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Thakur R, Jaiswal Y, Kumar A. Primary amides: Sustainable weakly coordinating groups in transition metal-catalyzed C–H bond functionalization reactions. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Schmitt A, Samal S, Thompson BC. Tuning the surface energies in a family of poly-3-alkylthiophenes bearing hydrophilic side-chains synthesized via direct arylation polymerization (DArP). Polym Chem 2021. [DOI: 10.1039/d1py00195g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A family of Poly(3-alkylthiophene) copolymers bearing different functional groups was synthesized via direct arylation polymerization and the functional group impact on surface energy, crystallinity, and electronic properties was investigated.
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Affiliation(s)
- Alexander Schmitt
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
| | - Sanket Samal
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
| | - Barry C. Thompson
- Department of Chemistry and Loker Hydrocarbon Research Institute
- University of Southern California
- Los Angeles
- USA
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18
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Affiliation(s)
- Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University Katsura, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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19
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Mulholland KD, Yoon S, Rennie CC, Sitch EK, McKay AI, Edkins K, Edkins RM. Iridium-catalysed 3,5-bis-borylation of phthalonitrile enables access to a family of C 4h octaarylphthalocyanines. Chem Commun (Camb) 2020; 56:8452-8455. [PMID: 32583832 DOI: 10.1039/d0cc03161e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ir-catalysed borylation of phthalonitrile produces both 4-(Bpin)phthalonitrile (1) and 3,5-bis(Bpin)phthalonitrile (2), which are potential divergent intermediates for the synthesis of functionalized phthalocyanines. To exemplify the utility of 2, we have prepared a series of 3,5-bis-arylphthalonitriles that in turn undergo sterically controlled regioselective cyclotetramization to give previously unknown C4h 1,3,8,10,15,17,22,24-octaarylphthalocyanines.
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Affiliation(s)
- Katie D Mulholland
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Sangbin Yoon
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Christopher C Rennie
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK.
| | - Eleanor K Sitch
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Alasdair I McKay
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Katharina Edkins
- Division of Pharmacy and Optometry, University of Manchester, Stopford Building, Manchester M13 9PT, UK
| | - Robert M Edkins
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK.
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20
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Gorbunova Y, Zakusilo DN, Boyarskaya IA, Vasilyev AV. Reactions of 3-arylpropenenitriles with arenes under superelectrophilic activation conditions: Hydroarylation of the carbon-carbon double bond followed by cyclization into 3-arylindanones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Affiliation(s)
- Quan Zheng
- College of Pharmaceutical Science and Institute of Drug Development & Chemical BiologyZhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chen‐Fu Liu
- College of Pharmaceutical ScienceGannan Medical University Ganzhou 341000 People's Republic of China
| | - Jie Chen
- College of Pharmaceutical Science and Institute of Drug Development & Chemical BiologyZhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Guo‐Wu Rao
- College of Pharmaceutical Science and Institute of Drug Development & Chemical BiologyZhejiang University of Technology Hangzhou 310014 People's Republic of China
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22
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Wang MY, Chen L, Li BW, Liu JY. DFT study on the mechanism of bimetallic Pd-Zn-catalyzed cycloaddition of alkynyl aryl ethers with internal alkynes. Dalton Trans 2020; 49:2914-2923. [PMID: 32068227 DOI: 10.1039/c9dt04362d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The reaction mechanism of bimetallic Pd-Zn-catalyzed cycloaddition of alkynyl aryl ethers with internal alkynes has been studied theoretically. Besides cycloaddition reaction, the dimerization of alkynyl aryl ethers was also considered. Both C6H5OC[triple bond, length as m-dash]CSiiPr3 and C6H5OC[triple bond, length as m-dash]CSiMe3 were chosen as the substrates. The reactions involve C-H activation of the substrate, acetic acid rotation, H transformation, MeC[triple bond, length as m-dash]CMe or substrate insertion into the Pd-phenyl bond and reductive elimination steps. It is found that cycloaddition is favored for C6H5OC[triple bond, length as m-dash]CSiiPr3, while dimerization is preferred for C6H5OC[triple bond, length as m-dash]CSiMe3, because the steric repulsion between two bulky SiiPr3 groups is relatively large and the steric repulsion between two small SiMe3 groups is relatively small. In addition, besides C6H5OC[triple bond, length as m-dash]CSiiPr3, four other substrates C6H5CH2C[triple bond, length as m-dash]CSiiPr3, C6H5C(O)C[triple bond, length as m-dash]CSiiPr3, C6H5SC[triple bond, length as m-dash]CSiiPr3 and C6H5N(H)C[triple bond, length as m-dash]CSiiPr3 have been calculated as the substrates for cycloaddition reaction with MeC[triple bond, length as m-dash]CMe. Among the five substrates, C6H5OC[triple bond, length as m-dash]CSiiPr3 has the lowest energy barrier (29.9 kcal mol-1), consistent with the experimental observation that C6H5OC[triple bond, length as m-dash]CSiiPr3 is the appropriate substrate for successful cycloaddition.
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Affiliation(s)
- Mei-Yan Wang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Li Chen
- Department of Oral Radiology, School and Hospital of Stomatology, Jilin University, Changchun 130021, People's Republic of China
| | - Bing-Wen Li
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Jing-Yao Liu
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.
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23
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Williams AF, White AJP, Spivey AC, Cordier CJ. meta-Selective C-H functionalisation of aryl boronic acids directed by a MIDA-derived boronate ester. Chem Sci 2020; 11:3301-3306. [PMID: 34122837 PMCID: PMC8152520 DOI: 10.1039/d0sc00230e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
N-Methyliminodiacetic acid (MIDA) boronates are boronic acid derivatives which are stable to reduction, oxidation and transmetalation. This has led to their widespread use as boronic acid protecting groups (PGs) and in iterative cross-couplings. We describe herein the development of a novel MIDA derivative that acts in a dual manner, as a protecting group and a directing group (DG) for meta C(sp2)–H functionalisation of arylboronic acids. Palladium catalysed C–H alkenylations, acetoxylations and arylations are possible, at room temperature and under aerobic conditions. Deprotection to reveal the functionalised boronic acids is rapid and allows for full recovery of the DG. The technique allows the facile diversification of aryl boronic acids and their subsequent use in a range of reactions or in iterative processes. An N-methyliminodiacetic acid derivative allows the meta-C–H functionalisation of boronic acids, acting simultaneously as a directing and protecting group.![]()
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Affiliation(s)
- Alexander F Williams
- Department of Chemistry, Imperial College London White City Campus, Molecular Sciences Research Hub 80 Wood Lane London W12 0BZ UK
| | - Andrew J P White
- Department of Chemistry, Imperial College London White City Campus, Molecular Sciences Research Hub 80 Wood Lane London W12 0BZ UK
| | - Alan C Spivey
- Department of Chemistry, Imperial College London White City Campus, Molecular Sciences Research Hub 80 Wood Lane London W12 0BZ UK
| | - Christopher J Cordier
- Department of Chemistry, Imperial College London White City Campus, Molecular Sciences Research Hub 80 Wood Lane London W12 0BZ UK
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24
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Ju H, Tenma H, Iwase M, Lee E, Ikeda M, Kuwahara S, Habata Y. Inclusion of alkyl nitriles by tetra-armed cyclens with styrylmethyl groups. Dalton Trans 2020; 49:3112-3119. [DOI: 10.1039/d0dt00335b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new technique for the assignment of the absolute configurations of low [α]D alkyl-nitriles using a Ag+ complex with a tetra-armed cyclen is reported.
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Affiliation(s)
- Huiyeong Ju
- Department of Chemistry
- Toho University
- Chiba 274-8510
- Japan
| | - Honoka Tenma
- Department of Chemistry
- Toho University
- Chiba 274-8510
- Japan
| | - Miki Iwase
- Department of Chemistry
- Toho University
- Chiba 274-8510
- Japan
| | - Eunji Lee
- Department of Chemistry
- Toho University
- Chiba 274-8510
- Japan
| | - Mari Ikeda
- Department of Chemistry
- Education Center
- Faculty of Engineering
- Chiba Institute of Technology
- Chiba 275-0023
| | - Shunsuke Kuwahara
- Department of Chemistry
- Toho University
- Chiba 274-8510
- Japan
- Research Centre for Integrated Properties
| | - Yoichi Habata
- Department of Chemistry
- Toho University
- Chiba 274-8510
- Japan
- Research Centre for Integrated Properties
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25
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Saha D, Das P, Biswas P, Guin J. Synthesis of Phenolic Compounds via Palladium Catalyzed C−H Functionalization of Arenes. Chem Asian J 2019; 14:4534-4548. [DOI: 10.1002/asia.201901073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/31/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Debajyoti Saha
- Department of ChemistryKrishnagar Govt. College Krishnagar Nadia 741101 India
| | - Prasenjit Das
- School of Chemical SciencesIndian Association for the Cultivation of Science 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Promita Biswas
- School of Chemical SciencesIndian Association for the Cultivation of Science 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Joyram Guin
- School of Chemical SciencesIndian Association for the Cultivation of Science 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
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26
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Xie S, Li S, Ma W, Xu X, Jin Z. Chelation-directed remote meta-C-H functionalization of aromatic aldehydes and ketones. Chem Commun (Camb) 2019; 55:12408-12411. [PMID: 31566641 DOI: 10.1039/c9cc05807a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We disclose herein the development of a versatile 1,2-diol directing template for palladium-catalyzed remote meta-C-H functionalization of aromatic aldehydes and ketones. In situ-generation of acetals and ketals, as well as removal afterwards, makes the C-H bond functionalization process more straightforward and efficient. This also represents the first example of chelation-directed meta-C-H functionalization of aromatic aldehydes and ketones.
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Affiliation(s)
- Shuguang Xie
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Sen Li
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Wenqian Ma
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Xiaohua Xu
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Zhong Jin
- State Key Laboratory and Institute of Elementoorganic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
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27
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Yuan YC, Bruneau C, Roisnel T, Gramage-Doria R. Site-Selective Ruthenium-Catalyzed C–H Bond Arylations with Boronic Acids: Exploiting Isoindolinones as a Weak Directing Group. J Org Chem 2019; 84:12893-12903. [DOI: 10.1021/acs.joc.9b01563] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yu-Chao Yuan
- Univ Rennes, CNRS, ISCR-UMR6226, F-35000 Rennes, France
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28
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Liu D, Luo P, Ge J, Jiang Z, Peng Y, Ding Q. Synthesis of 2-Arylbenzothiazole and 2-Arylthiazole Derivatives via a Ru-Catalyzed meta-Selective C–H Nitration Reaction. J Org Chem 2019; 84:12784-12791. [DOI: 10.1021/acs.joc.9b01194] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Deming Liu
- Key Laboratory of Small Functional Organic Molecules, Ministry of Education and Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Puying Luo
- Department of Obstetrics and Gynecology, Jiangxi Provincial people’s Hospital, Nanchang, Jiangxi 330006, P. R. China
| | - Junying Ge
- Key Laboratory of Small Functional Organic Molecules, Ministry of Education and Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Zilin Jiang
- Key Laboratory of Small Functional Organic Molecules, Ministry of Education and Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Yiyuan Peng
- Key Laboratory of Small Functional Organic Molecules, Ministry of Education and Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Qiuping Ding
- Key Laboratory of Small Functional Organic Molecules, Ministry of Education and Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
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29
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Donald JR, Berrell SL. Radical cyanomethylation via vinyl azide cascade-fragmentation. Chem Sci 2019; 10:5832-5836. [PMID: 31293772 PMCID: PMC6568274 DOI: 10.1039/c9sc01370a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/04/2019] [Indexed: 12/17/2022] Open
Abstract
Herein, a novel methodology for radical cyanomethylation is described. The process is initiated by radical addition to the vinyl azide reagent 3-azido-2-methylbut-3-en-2-ol which triggers a cascade-fragmentation mechanism driven by the loss of dinitrogen and the stabilised 2-hydroxypropyl radical, ultimately effecting cyanomethylation. Cyanomethyl groups can be efficiently introduced into a range of substrates via trapping of α-carbonyl, heterobenzylic, alkyl, sulfonyl and aryl radicals, generated from a variety of functional groups under both photoredox catalysis and non-catalytic conditions. The value of this approach is exemplified by the late-stage cyanomethylation of pharmaceuticals.
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Affiliation(s)
- James R Donald
- Department of Chemistry , University of York , Heslington , York , YO10 5DD , UK .
| | - Sophie L Berrell
- Department of Chemistry , University of York , Heslington , York , YO10 5DD , UK .
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30
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Chu JH, Chiang MF, Li CW, Su ZH, Lo SC, Wu MJ. Palladium-Catalyzed Late-Stage ortho-C–H Bond Aroylation of Anilines Using 4-Methoxy-2-pyridinyl as a Removable Directing Group. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00119] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jean-Ho Chu
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Meng-Fan Chiang
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Chin-Wei Li
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Zhe-Hong Su
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Shao-Chi Lo
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Ming-Jung Wu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
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31
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Ichake SS, Villuri BK, Reddy SR, Kavala V, Yao CF. A Synthetic Strategy for the Construction of Functionalized Triphenylene Frameworks via Palladium Catalyzed Intramolecular Annulation/Decyanogenative C-H Bond Alkenylation. Org Lett 2019; 21:2256-2260. [PMID: 30883138 DOI: 10.1021/acs.orglett.9b00532] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium catalyzed synthesis of 14-phenylbenzo[ f]tetraphene-9-carbonitrile derivatives as core polycyclic aromatic hydrocarbons (PAHs) was achieved via an intramolecular annulation and decyanogenative C-H bond alkenylation strategy. A readily synthesized Knoevenagel condensation product of [1,1'-biphenyl]-2,2'-dicarbaldehyde with benzyl cyanide converted successfully into 14-phenylbenzo[ f]tetraphene-9-carbonitrile derivatives in excellent yields up to 94%. The transformation involves an intramolecular cascade C-C bond formation along with a C-H bond cleavage sequence.
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Affiliation(s)
- Sachin S Ichake
- Department of Chemistry , National Taiwan Normal University , 88, Sec. 4, Ting-Chow Road , Taipei - 116 , Taiwan R.O.C
| | - Bharath Kumar Villuri
- Department of Chemistry , National Taiwan Normal University , 88, Sec. 4, Ting-Chow Road , Taipei - 116 , Taiwan R.O.C
| | - Sabbasani Rajasekhara Reddy
- Department of Chemistry , National Taiwan Normal University , 88, Sec. 4, Ting-Chow Road , Taipei - 116 , Taiwan R.O.C.,Department of Chemistry, School of Advanced Sciences , Vellore Institute of Technology (VIT) , Vellore 632014 , India
| | - Veerababurao Kavala
- Department of Chemistry , National Taiwan Normal University , 88, Sec. 4, Ting-Chow Road , Taipei - 116 , Taiwan R.O.C
| | - Ching-Fa Yao
- Department of Chemistry , National Taiwan Normal University , 88, Sec. 4, Ting-Chow Road , Taipei - 116 , Taiwan R.O.C
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32
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Gorbunova Y, Zakusilo DN, Vasilyev AV. Cinnamonitrile as a precursor of a bi-centered electrophile in reactions with arenes in triflic acid. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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33
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One-pot, solvent-free Pd(II)-catalyzed direct β-C-H arylation of carboxamides involving anhydrides as substrates via in situ installation of directing group. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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34
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Xu HB, Zhu YY, Yang JH, Chai XY, Dong L. Rhodium-catalyzed biheteroaryl-2-carbonitrile synthesis via double C–H activation. Org Chem Front 2019. [DOI: 10.1039/c9qo01114e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rhodium(iii)-catalyzed double C–H activation and in situ dealcoholization to generate biheteroaryl-2-carbonitriles have been developed via a CDC mechanism, in which benzimidates act as both directing groups and the precursors of nitrile groups.
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Affiliation(s)
- Hui-Bei Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Yan-Ying Zhu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Jia-Hui Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xin-Yue Chai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
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35
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Abstract
Fulfilling the direct inert C–H bond functionalization of raw materials that are earth-abundant and commercially available for the synthesis of diverse targeted organic compounds is very desirable and its implementation would mean a great reduction of the synthetic steps required for substrate prefunctionalization such as halogenation, borylation, and metalation. Successful C–H bond functionalization mainly resorts to homogeneous transition-metal catalysis, albeit sometimes suffering from poor catalyst reusability, nontrivial separation, and severe biotoxicity. TiO2 photocatalysis displays multifaceted advantages, such as strong oxidizing ability, high chemical stability and photostability, excellent reusability, and low biotoxicity. The chemical reactions started and delivered by TiO2 photocatalysts are well known to be widely used in photocatalytic water-splitting, organic pollutant degradation, and dye-sensitized solar cells. Recently, TiO2 photocatalysis has been demonstrated to possess the unanticipated ability to trigger the transformation of inert C–H bonds for C–C, C–N, C–O, and C–X bond formation under ultraviolet light, sunlight, and even visible-light irradiation at room temperature. A few important organic products, traditionally synthesized in harsh reaction conditions and with specially functionalized group substrates, are continuously reported to be realized by TiO2 photocatalysis with simple starting materials under very mild conditions. This prominent advantage—the capability of utilizing cheap and readily available compounds for highly selective synthesis without prefunctionalized reactants such as organic halides, boronates, silanes, etc.—is attributed to the overwhelmingly powerful photo-induced hole reactivity of TiO2 photocatalysis, which does not require an elevated reaction temperature as in conventional transition-metal catalysis. Such a reaction mechanism, under typically mild conditions, is apparently different from traditional transition-metal catalysis and beyond our insights into the driving forces that transform the C–H bond for C–C bond coupling reactions. This review gives a summary of the recent progress of TiO2 photocatalytic C–H bond activation for C–C coupling reactions and discusses some model examples, especially under visible-light irradiation.
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36
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Yang S, Tang W, Yang Z, Xu J. Iridium-Catalyzed Highly Efficient and Site-Selective Deoxygenation of Alcohols. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02495] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shiyi Yang
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin—Madison, 777 Highland Avenue, Madison, Wisconsin 53705, United States
- Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Zhanhui Yang
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
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37
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Affiliation(s)
- Gqwetha Ncube
- Discovery Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Malcolm P. Huestis
- Discovery Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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38
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Zhu L, Jiang YY, Fan X, Liu P, Ling BP, Bi S. Mechanism of Palladium-Catalyzed Alkylation of Aryl Halides with Alkyl Halides through C–H Activation: A Computational Study. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00185] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ling Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xia Fan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Bao-Ping Ling
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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Li Y, Chang Y, Li Y, Cao C, Yang J, Wang B, Liang D. Iron-Catalyzed exo
-Selective Synthesis of Cyanoalkyl Indolines via Cyanoisopropylarylation of Unactivated Alkenes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800296] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yanni Li
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Yu Chang
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Yufen Li
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Cheng Cao
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Jinshuang Yang
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
| | - Baoling Wang
- Yunnan Engineering Technology Research Center for Plastic Films; Kunming 650214 People's Republic of China
| | - Deqiang Liang
- Department of Chemistry; Kunming University; Kunming 650214 People's Republic of China
- Yunnan Engineering Technology Research Center for Plastic Films; Kunming 650214 People's Republic of China
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