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Yuan C, Jia C, Zhang X, Zhang W, You Y, Xu X, Zhu L, Chen Y, Dong Y, Xu L. Ligand-Enabled ortho-Selective C-H Olefination of Tertiary Aniline Derivatives. Org Lett 2024; 26:4877-4881. [PMID: 38836549 DOI: 10.1021/acs.orglett.4c01315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
A highly ortho-selective CAr-H olefination of tertiary anilines without a directing group was developed. This reaction tolerated various substituted arenes and olefin coupling partners, affording ortho-olefination products in moderate to good yields. Preliminary mechanistic studies showed that N-Ac-d-Ala, Ag2CO3, and BQ were the key factors for tuning the regioselectivity from para to ortho. Density functional theory was used to achieve a theoretical understanding of the ortho selectivity.
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Affiliation(s)
- Chunchen Yuan
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Changbo Jia
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Xinyu Zhang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, 459 Main Street, Shihezi, Xinjiang 832003, China
| | - Wenlong Zhang
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Yang'en You
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Xiaolong Xu
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Yiliang Chen
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Yongping Dong
- School of Chemistry and Chemical Engineering Xiushan Campus, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Liang Xu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, 459 Main Street, Shihezi, Xinjiang 832003, China
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2
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Naksomboon K, Gómez-Bengoa E, Mehara J, Roithová J, Otten E, Fernández-Ibáñez MÁ. Mechanistic studies of the palladium-catalyzed S,O-ligand promoted C-H olefination of aromatic compounds. Chem Sci 2023; 14:2943-2953. [PMID: 36937590 PMCID: PMC10016329 DOI: 10.1039/d2sc06840k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/16/2023] [Indexed: 02/18/2023] Open
Abstract
Pd-catalyzed C-H functionalization reactions of non-directed substrates have recently emerged as an attractive alternative to the use of directing groups. Key to the success of these transformations has been the discovery of new ligands capable of increasing both the reactivity of the inert C-H bond and the selectivity of the process. Among them, a new type of S,O-ligand has been shown to be highly efficient in promoting a variety of Pd-catalyzed C-H olefination reactions of non-directed arenes. Despite the success of this type of S,O-ligand, its role in the C-H functionalization processes is unknown. Herein, we describe a detailed mechanistic study focused on elucidating the role of the S,O-ligand in the Pd-catalyzed C-H olefination of non-directed arenes. For this purpose, several mechanistic tools, including isolation and characterization of reactive intermediates, NMR and kinetic studies, isotope effects and DFT calculations have been employed. The data from these experiments suggest that the C-H activation is the rate-determining step in both cases with and without the S,O-ligand. Furthermore, the results indicate that the S,O-ligand triggers the formation of more reactive Pd cationic species, which explains the observed acceleration of the reaction. Together, these studies shed light on the role of the S,O-ligand in promoting Pd-catalyzed C-H functionalization reactions.
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Affiliation(s)
- Kananat Naksomboon
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Enrique Gómez-Bengoa
- Department of Organic Chemistry I, Universidad País Vasco, UPV/EHU Apdo. 1072 20080 San Sebastian Spain
| | - Jaya Mehara
- Institute for Molecules and Materials, Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Jana Roithová
- Institute for Molecules and Materials, Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Edwin Otten
- Stratingh Institute for Chemistry, University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - M Ángeles Fernández-Ibáñez
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
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3
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Chen S, Yang Y, Chen C, Wang C. Advances in Transition-Metal-Catalyzed Keto Carbonyl-Directed C—H Bond Functionalization Reactions. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202205033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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4
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Carral-Menoyo A, Sotomayor N, Lete E. Palladium-catalyzed oxidative arene C–H alkenylation reactions involving olefins. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.03.007] [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]
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5
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Mandal R, Garai B, Sundararaju B. Weak-Coordination in C–H Bond Functionalizations Catalyzed by 3d Metals. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05267] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rajib Mandal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
| | - Bholanath Garai
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
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6
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Biswas S, Parsutkar MM, Jing SM, Pagar VV, Herbort JH, RajanBabu TV. A New Paradigm in Enantioselective Cobalt Catalysis: Cationic Cobalt(I) Catalysts for Heterodimerization, Cycloaddition, and Hydrofunctionalization Reactions of Olefins. Acc Chem Res 2021; 54:4545-4564. [PMID: 34847327 PMCID: PMC8721816 DOI: 10.1021/acs.accounts.1c00573] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
One of the major challenges facing organic synthesis in the 21st century is the utilization of abundantly available feedstock chemicals for fine chemical synthesis. Regio- and enantioselective union of easily accessible 1,3-dienes and other feedstocks like ethylene, alkyl acrylates, and aldehydes can provide valuable building blocks adorned with latent functionalities for further synthetic elaboration. Through an approach that relies on mechanistic insights and systematic examination of ligand and counterion effects, we developed an efficient cobalt-based catalytic system [(P∼P)CoX2/Me3Al] (P∼P = bisphosphine) to effect the first enantioselective heterodimerization of several types of 1,3-dienes with ethylene. In addition to simple cyclic and acyclic dienes, siloxy-1,3-dienes participate in this reaction, giving highly functionalized, nearly enantiopure silyl enolates, which can be used for subsequent C-C and C-X bond-forming reactions. As our understanding of the mechanism of this reaction improved, our attention was drawn to more challenging partners like alkyl acrylates (one of the largest volume feedstocks) as the olefin partners instead of ethylene. Prompted by the intrinsic limitations of using aluminum alkyls as the activators for this reaction, we explored the fundamental chemistry of the lesser known (P∼P)Co(I)X species and discovered that in the presence of halide sequestering agents, such as sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (NaBARF) or (C6F5)3B, certain chiral bisphosphine complexes are superb catalysts for regio- and enantioselective heterodimerization of 1,3-dienes and alkyl acrylates. We have since found that these cationic Co(I) catalysts, most conveniently prepared in situ by reduction of the corresponding cobalt(II) halide complexes by zinc in the presence of NaBARF, promote enantioselective [2 + 2]-cycloaddition between alkynes and an astonishing variety of alkenyl derivatives to give highly functionalized cyclobutenes. In reactions between 1,3-enynes and ethylene, the [2 + 2]-cycloaddition between the alkyne and ethylene is followed by a 1,4-addition of ethylene in a tandem fashion to give nearly enantiopure cyclobutanes with an all-carbon quaternary center, giving a set of molecules that maps well into many medicinally relevant compounds. In another application, we find that the cationic Co(I)-catalysts promote highly selective hydroacylation and 1,2-hydroboration of prochiral 1,3-dienes. Further, we find that a cationic Co(I)-catalyst promotes cycloisomerization followed by hydroalkenylation of 1,6-enynes to produce highly functionalized carbo- and heterocyclic compounds. Surprisingly the regioselectivity of the alkene addition depends on whether it is a simple alkene or an acrylate, and the acrylate addition produces an uncommon Z-adduct. This Account will provide a summary of the enabling basic discoveries and the attendant developments that led to the unique cationic Co(I)-complexes as catalysts for disparate C-C and C-B bond-forming reactions. It is our hope that this Account will stimulate further work with these highly versatile catalysts which are derived from an earth-abundant metal.
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Affiliation(s)
- Souvagya Biswas
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Mahesh M Parsutkar
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Stanley M Jing
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Vinayak V Pagar
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - James H Herbort
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - T V RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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7
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Jadhav PP, Kahar NM, Dawande SG. Ruthenium(II)-Catalyzed Highly Chemo- and Regioselective Oxidative C6 Alkenylation of Indole-7-carboxamides. Org Lett 2021; 23:8673-8677. [PMID: 34723545 DOI: 10.1021/acs.orglett.1c02948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We disclosed the first efficient method for highly chemo- and regioselective C6 alkenylation of indole-7-carboxamides using inexpensive Ru(II) catalyst through chelation assisted C-H bond activation. Electronically diverse indole-7-carboxamides and alkenes react efficiently to produce a wide range of C6 alkenyl indole derivatives. Further the C6 alkenyl indole-7-carboxamides modified to their derivatives through simple chemical transformations. The observed regioselectivity and kinetics has been evidenced by deuterium incorporation and intermolecular competitive studies. In addition, for mechanistic insights, the intermediates were analyzed by HRMS.
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Affiliation(s)
- Pankaj P Jadhav
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India
| | - Nilesh M Kahar
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India
| | - Sudam G Dawande
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India
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8
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Kim YL, Park SA, Choi SM, Park JU, Kim JH. Co III-Catalyzed C-H Alkenylation and Allylation with Cyclopropenes via Sequential C-H/C-C Bond Activation. Org Lett 2021; 23:6674-6679. [PMID: 34474571 DOI: 10.1021/acs.orglett.1c02219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An atom-economical strategy for the C-H alkenylation and C-H allylation of arenes by employing cyclopropenes as versatile alkenylating and allylating reagents is reported, catalyzed by cobalt. The Co-catalyzed C-H alkenylation process involves sequential C-H and C-C bond cleavage. Under the optimized conditions, broad-ranging alkenylated (hetero)arenes were synthesized with complete (E)-stereoselectivity (up to 91%). The consecutive C-H allylation proved viable under basic conditions via double-bond migration of the initially generated alkenyl (hetero)arenes, thus leading to allylated (hetero)arenes with high stereoselectivity of olefin (E/Z ratio = 91:9 to 100:0).
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Affiliation(s)
- Ye Lim Kim
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Sun-A Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Seoung-Mi Choi
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Jong-Un Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
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9
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Basuli S, Sahu S, Saha S, Maji MS. Cp*Co(III)‐Catalyzed Dehydrative C2‐Prenylation of Pyrrole and Indole with Allyl Alcohols. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100811] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Suchand Basuli
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Samrat Sahu
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Shuvendu Saha
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Modhu Sudan Maji
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
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10
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Priebbenow DL, Hua C. Acyl silane directed Cp*Rh(III)-catalysed alkylation/annulation reactions. Chem Commun (Camb) 2021; 57:7938-7941. [PMID: 34286753 DOI: 10.1039/d1cc03051e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Studies into the Cp*Rh(iii)-catalysed hydroarylation of alkenes with aryl acyl silanes led to the discovery of a new synthetic strategy to access unique silicon derived indene frameworks. Rather than protodemetalation of the metal enolate formed following insertion of an alkene into the aryl C-H bond, intramolecular aldol condensation of the acyl silane occurred to generate a series of 2-formyl- and 2-acetyl-3-silyl indenes. This represents only the second example of rhodium-catalysed C-H functionalisation employing acyl silanes as weakly coordinating directing groups and the intramolecular aldol condensation strategy was extended to access analogous silicon derived benzofurans.
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Affiliation(s)
- Daniel L Priebbenow
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia.
| | - Carol Hua
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia.
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11
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Du Y, Wang Y, Zhao Q, Zhao L. Selective Synthesis of 5‐Alkylated and 5‐Alkenylated Chromones via Catalytic C‐H Coupling of Chromones with Allyl Alcohols. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ya‐Zhen Du
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu China
| | - Yu‐Jiao Wang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu China
| | - Qing‐Yang Zhao
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu China
| | - Li‐Ming Zhao
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050 China
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12
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Banjare SK, Nanda T, Pati BV, Biswal P, Ravikumar PC. O-Directed C-H functionalization via cobaltacycles: a sustainable approach for C-C and C-heteroatom bond formations. Chem Commun (Camb) 2021; 57:3630-3647. [PMID: 33870349 DOI: 10.1039/d0cc08199j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review focuses on providing comprehensive highlights of the recent advances in the field of cobalt-catalysed C-H functionalization and related synthetic concepts, relying on these through oxygen atom coordination. In recent years, 3d transition metal (Fe, Co, Cu & Ni) catalysed C-H functionalization reactions have received immense attention on account of its higher abundance and low cost, as compared to noble metals such as Ir, Rh, Ru and Pd. Among the first-row transition metals, cobalt is one of the extensively used metals for sustainable synthesis due to its unique reactivity towards the functionalization of inert C-H bonds. The functionalization of the inert C-H bond necessitates a proximal directing group. In this context, strongly coordinating nitrogen atom directed C-H functionalizations have been well explored. Nevertheless, strongly coordinating nitrogen-containing scaffolds, such as pyridine, pyrimidine, and 8-aminoquinoline, have to be installed and removed in a separate process. In contrast, C-H functionalizations through weakly coordinating atoms, such as oxygen, are largely underdeveloped. Since the oxygen atom is a part of many readily available functional groups, such as aldehydes, ketones, carboxylic acids, and esters, it could be used as directing groups for selective C-H functionalization reactions without any modification. Thus, the use of 3d transition metals, such as cobalt, along with weakly coordinating (oxygen) directing groups for C-H functionalization reactions are more sustainable, especially for the large-scale production of pharmaceuticals in industries. During the last decade, notable progress has been made using this concept. Nonetheless, almost all the reports are restricted to the formation of C-C and C-N bond. Therefore, there is a wide scope for developing this area for the formation of other bonds, such as C-X (halogens), C-B, C-S, and C-Se.
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Affiliation(s)
- Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) HBNI, Bhubaneswar, Odisha 752050, India.
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13
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Ali W, Prakash G, Maiti D. Recent development in transition metal-catalysed C-H olefination. Chem Sci 2021; 12:2735-2759. [PMID: 34164039 PMCID: PMC8179420 DOI: 10.1039/d0sc05555g] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/28/2020] [Indexed: 01/10/2023] Open
Abstract
Transition metal-catalysed functionalizations of inert C-H bonds to construct C-C bonds represent an ideal route in the synthesis of valuable organic molecules. Fine tuning of directing groups, catalysts and ligands has played a crucial role in selective C-H bond (sp2 or sp3) activation. Recent developments in these areas have assured a high level of regioselectivity in C-H olefination reactions. In this review, we have summarized the recent progress in the oxidative olefination of sp2 and sp3 C-H bonds with special emphasis on distal, atroposelective, non-directed sp2 and directed sp3 C-H olefination. The scope, limitation, and mechanism of various transition metal-catalysed olefination reactions have been described briefly.
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Affiliation(s)
- Wajid Ali
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai Maharashtra-400076 India
| | - Gaurav Prakash
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai Maharashtra-400076 India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai Maharashtra-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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14
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Tian S, Luo T, Zhu Y, Wan JP. Recent advances in the diversification of chromones and flavones by direct C H bond activation or functionalization. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.07.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Carral-Menoyo A, Sotomayor N, Lete E. Cp*Co(III)-Catalyzed C-H Hydroarylation of Alkynes and Alkenes and Beyond: A Versatile Synthetic Tool. ACS OMEGA 2020; 5:24974-24993. [PMID: 33043175 PMCID: PMC7542607 DOI: 10.1021/acsomega.0c03639] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/02/2020] [Indexed: 05/03/2023]
Abstract
The use of earth-abundant first-row transition metals, such as cobalt, in C-H activation reactions for the construction and functionalization of a wide variety of structures has become a central topic in synthetic chemistry over the last few years. In this context, the emergence of cobalt catalysts bearing pentamethylcyclopentadienyl ligands (Cp*) has had a major impact on the development of synthetic methodologies. Cp*Co(III) complexes have been proven to possess unique reactivity compared, for example, to their Rh(III) counterparts, obtaining improved chemo- or regioselectivities, as well as yielding new reactivities. This perspective is focused on recent advances on the alkylation and alkenylation reactions of (hetero)arenes with alkenes and alkynes under Cp*Co(III) catalysis.
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Affiliation(s)
- Asier Carral-Menoyo
- Departamento de Química
Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Apdo. 644, 48080 Bilbao, Spain
| | - Nuria Sotomayor
- Departamento de Química
Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Apdo. 644, 48080 Bilbao, Spain
| | - Esther Lete
- Departamento de Química
Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Apdo. 644, 48080 Bilbao, Spain
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16
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Carral-Menoyo A, Sotomayor N, Lete E. Amide-Directed Intramolecular Co(III)-Catalyzed C–H Hydroarylation of Alkenes for the Synthesis of Dihydrobenzofurans with a Quaternary Center. J Org Chem 2020; 85:10261-10270. [DOI: 10.1021/acs.joc.0c01413] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Asier Carral-Menoyo
- Departamento de Quı́mica Orgánica II, Facultad de Ciencia y Tecnologı́a, Universidad del Paı́s Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain
| | - Nuria Sotomayor
- Departamento de Quı́mica Orgánica II, Facultad de Ciencia y Tecnologı́a, Universidad del Paı́s Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain
| | - Esther Lete
- Departamento de Quı́mica Orgánica II, Facultad de Ciencia y Tecnologı́a, Universidad del Paı́s Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain
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17
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Mei R, Dhawa U, Samanta RC, Ma W, Wencel-Delord J, Ackermann L. Cobalt-Catalyzed Oxidative C-H Activation: Strategies and Concepts. CHEMSUSCHEM 2020; 13:3306-3356. [PMID: 32065843 DOI: 10.1002/cssc.202000024] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Inexpensive cobalt-catalyzed oxidative C-H functionalization has emerged as a powerful tool for the construction of C-C and C-Het bonds, which offers unique potential for transformative applications to modern organic synthesis. In the early stage, these transformations typically required stoichiometric and toxic transition metals as sacrificial oxidants; thus, the formation of metal-containing waste was inevitable. In contrast, naturally abundant molecular O2 has more recently been successfully employed as a green oxidant in cobalt catalysis, thus considerably improving the sustainability of such transformations. Recently, a significant momentum was gained by the use of electricity as a sustainable and environmentally benign redox reagent in cobalt-catalyzed C-H functionalization, thereby preventing the consumption of cost-intensive chemicals while at the same time addressing the considerable safety hazards related to the use of molecular oxygen in combination with flammable organic solvents. Considering the unparalleled potential of the aforementioned approaches for sustainable green synthesis, this Review summarizes the recent progress in cobalt-catalyzed oxidative C-H activation until early 2020.
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Affiliation(s)
- Ruhuai Mei
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, 610106, P. R. China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610052, P. R. China
| | - Uttam Dhawa
- Institut für Organische und Biomolekulare Chemie, Georg-August Universität, Tammannstraße 2, 37077, Göttingen, Germany
| | - Ramesh C Samanta
- Institut für Organische und Biomolekulare Chemie, Georg-August Universität, Tammannstraße 2, 37077, Göttingen, Germany
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, 610052, P. R. China
| | - Joanna Wencel-Delord
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM, 25 Rue Becquerel, 67087, Strasbourg, France
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August Universität, Tammannstraße 2, 37077, Göttingen, Germany
- Department of Chemistry, University of Pavia, Viale Taramelli, 10, 27100, Pavia, Italy
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18
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Liu H, Luo Y, Zhang J, Liu M, Dong L. Rapid Synthesis of Alkenylated BINOL Derivatives via Rh(III)-Catalyzed C-H Bond Activation. Org Lett 2020; 22:4648-4652. [PMID: 32496793 DOI: 10.1021/acs.orglett.0c01415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Modification of BINOL units has been well examined via Rh-catalyzed C-H activation and functionalization reactions by using ester carbonyls as directing groups and alkenes as coupling partners. The one-pot strategy was an efficient protocol for the rapid synthesis of BINOL derivatives with retention of optical purity.
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Affiliation(s)
- Hao Liu
- 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, China
| | - Yi Luo
- 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, China
| | - Jing Zhang
- 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, China
| | - Man Liu
- 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, China
| | - 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, China
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19
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Kim YL, Park SA, Kim JH. Cobalt-Catalyzed Direct C(sp2
)-H Alkylation with Unactivated Alkenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ye Lim Kim
- Department of Chemistry (BK21 Plus).; Institution Research Institute of Natural Science; Gyeongsang National University; 52828 Jinju Korea
| | - Sun-a Park
- Department of Chemistry (BK21 Plus).; Institution Research Institute of Natural Science; Gyeongsang National University; 52828 Jinju Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 Plus).; Institution Research Institute of Natural Science; Gyeongsang National University; 52828 Jinju Korea
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20
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Dethe DH, C B N, Bhat AA. Cp*Co(III)-Catalyzed Ketone-Directed ortho-C-H Activation for the Synthesis of Indene Derivatives. J Org Chem 2020; 85:7565-7575. [PMID: 32364736 DOI: 10.1021/acs.joc.0c00727] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A weakly coordinating, carbonyl-assisted C-H activation of aromatic systems with α,β-unsaturated ketone and subsequent aldol condensation has been developed using a Cp*Co(CO)I2 catalyst. The developed method is the first example of indene synthesis by cobalt-catalyzed C-H activation. In addition, the reaction requires mild reaction conditions and easily accessible starting materials, and it shows excellent functional group compatibility.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Nagabhushana C B
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Arsheed Ahmad Bhat
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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21
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Bera SS, Maji MS. Carbamates: A Directing Group for Selective C-H Amidation and Alkylation under Cp*Co(III) Catalysis. Org Lett 2020; 22:2615-2620. [PMID: 32207626 DOI: 10.1021/acs.orglett.0c00589] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The selective reactivity of carbamate and thiocarbamate toward alkylation and amidation is reported under stable, high-valent, cost-effective cobalt(III) catalysis. This method reveals the wide possibility of designing a different branch of synthetically challenging yet highly promising asymmetric catalysts based on BINOL and SPINOL scaffolds. Late-stage C-H functionalization of l-tyrosine and estrone was also achieved through this approach. The mechanistic study shows that a base-assisted internal electrophilic substitution mechanism is operative here.
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Affiliation(s)
- Sourav Sekhar Bera
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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22
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Banjare SK, Biswal P, Ravikumar PC. Cobalt-Catalyzed One-Step Access to Pyroquilon and C-7 Alkenylation of Indoline with Activated Alkenes Using Weakly Coordinating Functional Groups. J Org Chem 2020; 85:5330-5341. [DOI: 10.1021/acs.joc.0c00023] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI Bhubaneswar, Jatani, Odisha 752050, India
| | - Pragati Biswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI Bhubaneswar, Jatani, Odisha 752050, India
| | - Ponneri Chandrababu Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI Bhubaneswar, Jatani, Odisha 752050, India
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23
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Martínez de Salinas S, Sanjosé‐Orduna J, Odena C, Barranco S, Benet‐Buchholz J, Pérez‐Temprano MH. Weakly Coordinated Cobaltacycles: Trapping Catalytically Competent Intermediates in Cp*Co
III
Catalysis. Angew Chem Int Ed Engl 2020; 59:6239-6243. [DOI: 10.1002/anie.201916387] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Sara Martínez de Salinas
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jesús Sanjosé‐Orduna
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Carlota Odena
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Sergio Barranco
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jordi Benet‐Buchholz
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Mónica H. Pérez‐Temprano
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
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24
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Martínez de Salinas S, Sanjosé‐Orduna J, Odena C, Barranco S, Benet‐Buchholz J, Pérez‐Temprano MH. Weakly Coordinated Cobaltacycles: Trapping Catalytically Competent Intermediates in Cp*Co
III
Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sara Martínez de Salinas
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jesús Sanjosé‐Orduna
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Carlota Odena
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Sergio Barranco
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jordi Benet‐Buchholz
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Mónica H. Pérez‐Temprano
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
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25
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Mei R, Fang X, He L, Sun J, Zou L, Ma W, Ackermann L. Cobaltaelectro-catalyzed oxidative allene annulation by electro-removable hydrazides. Chem Commun (Camb) 2020; 56:1393-1396. [PMID: 31912810 DOI: 10.1039/c9cc09076b] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient C-H/N-H functionalization with allenes was enabled via versatile electro-oxidative cobalt catalysis. Thus, electrochemical C-H activations were accomplished with high levels of chemoselectivity and regioselectivity in an operationally simple undivided cell setup. The user-friendly nature of this protocol was highlighted by excellent functional group tolerance, an electro-reductive removable hydrazide directing group and easy scalability. Experimental mechanistic studies were indicative of a facile BIES C-H cobaltation event.
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Affiliation(s)
- Ruhuai Mei
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China. and Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, P. R. China
| | - Xinyue Fang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, P. R. China
| | - Liang He
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Junmei Sun
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.
| | - Liang Zou
- Affiliated Hospital & Clinical Medical College of Chengdu University, Chengdu 610081, P. R. China
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, P. R. China
| | - Lutz Ackermann
- Institute for Organic and Biomolecular Chemistry, Georg-August-Universität Göttingen, Tammannstr. 2, 37077 Göttingen, Germany.
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26
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Carral-Menoyo A, Sotomayor N, Lete E. Palladium-catalysed Heck-type alkenylation reactions in the synthesis of quinolines. Mechanistic insights and recent applications. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00789g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Recent developments in Pd(0)- and Pd(ii)-catalysed alkenylation reactions for the synthesis of quinolines focusing on mechanistic understanding.
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Affiliation(s)
- Asier Carral-Menoyo
- Departamento de Química Orgánica II
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU
- 48080 Bilbao
- Spain
| | - Nuria Sotomayor
- Departamento de Química Orgánica II
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU
- 48080 Bilbao
- Spain
| | - Esther Lete
- Departamento de Química Orgánica II
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU
- 48080 Bilbao
- Spain
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27
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Sk MR, Maji MS. Cobalt(iii)-catalyzed ketone-directed C–H vinylation using vinyl acetate. Org Chem Front 2020. [DOI: 10.1039/c9qo01164a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Weakly coordinating, ketone-directed C–H vinylation using vinyl acetate is reported here for a wide range of aromatic ketones such as acetophenones, diaryl ketones, chromones and chalcones under cost-effective and air-stable cobalt(iii)-catalysis.
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Affiliation(s)
- Md Raja Sk
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Modhu Sudan Maji
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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28
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Baccalini A, Vergura S, Dolui P, Maiti S, Dutta S, Maity S, Khan FF, Lahiri GK, Zanoni G, Maiti D. Cobalt-Catalyzed C(sp2)–H Allylation of Biphenyl Amines with Unbiased Terminal Olefins. Org Lett 2019; 21:8842-8846. [DOI: 10.1021/acs.orglett.9b03484] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alessio Baccalini
- Department of Chemistry, University of Pavia, Viale Taramelli 10, Pavia 27100, Italy
| | - Stefania Vergura
- Department of Chemistry, University of Pavia, Viale Taramelli 10, Pavia 27100, Italy
| | - Pravas Dolui
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | | | - Subhabrata Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Farheen Fatima Khan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 10, Pavia 27100, Italy
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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29
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Banjare SK, Nanda T, Ravikumar PC. Cobalt-Catalyzed Regioselective Direct C-4 Alkenylation of 3-Acetylindole with Michael Acceptors Using a Weakly Coordinating Functional Group. Org Lett 2019; 21:8138-8143. [DOI: 10.1021/acs.orglett.9b03243] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shyam Kumar Banjare
- National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Jatani, Odisha 752050, India
| | - Tanmayee Nanda
- National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Jatani, Odisha 752050, India
| | - P. C. Ravikumar
- National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Jatani, Odisha 752050, India
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30
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Yu Y, Wu Q, Liu D, Hu L, Yu L, Tan Z, Zhu G. Synthesis of Benzofulvenes via Cp*Co(III)-Catalyzed C-H Activation and Carbocyclization of Aromatic Ketones with Internal Alkynes. J Org Chem 2019; 84:7449-7458. [PMID: 31083904 DOI: 10.1021/acs.joc.9b00595] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient and practical synthesis of benzofulvenes was developed via ketone-directed Cp*Co(III)-catalyzed sequential C-H activation, addition, cyclization, and dehydration cascade processes between simple aromatic ketones and alkynes. The reaction tolerates a variety of functional groups, and various benzofulvenes were efficiently synthesized in 42-92% yields.
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Affiliation(s)
- Yongqi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Qianlong Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Da Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Liang Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Lin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Gangguo Zhu
- Department of Chemistry , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
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31
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Naksomboon K, Poater J, Bickelhaupt FM, Fernández-Ibáñez MÁ. para-Selective C-H Olefination of Aniline Derivatives via Pd/S,O-Ligand Catalysis. J Am Chem Soc 2019; 141:6719-6725. [PMID: 30922056 PMCID: PMC6487392 DOI: 10.1021/jacs.9b01908] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 12/16/2022]
Abstract
Herein we report a highly para-selective C-H olefination of aniline derivatives by a Pd/S,O-ligand-based catalyst. The reaction proceeds under mild reaction conditions with high efficiency and broad substrate scope, including mono-, di-, and trisubstituted tertiary, secondary, and primary anilines. The S,O-ligand is responsible for the dramatic improvements in substrate scope and the high para-selectivity observed. This methodology is operationally simple, scalable, and can be performed under aerobic conditions.
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Affiliation(s)
- Kananat Naksomboon
- Van’t
Hoff Institute for Molecular Sciences, University
of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The
Netherlands
| | - Jordi Poater
- Departament
de Química Inorgànica i Orgànica & Institut
de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, 08028 Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - F. Matthias Bickelhaupt
- Department
of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling
(ACMM), VU University Amsterdam, 1081 HV, Amsterdam, The Netherlands
- Institute
for Molecules and Materials, Radboud University, 6525 AJ Nijmegen, The Netherlands
| | - M. Ángeles Fernández-Ibáñez
- Van’t
Hoff Institute for Molecular Sciences, University
of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The
Netherlands
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32
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Debbarma S, Sk MR, Modak B, Maji MS. On-Water Cp*Ir(III)-Catalyzed C–H Functionalization for the Synthesis of Chromones through Annulation of Salicylaldehydes with Diazo-Ketones. J Org Chem 2019; 84:6207-6216. [DOI: 10.1021/acs.joc.9b00418] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Suvankar Debbarma
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Md Raja Sk
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Biswabrata Modak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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33
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Baccalini A, Vergura S, Dolui P, Zanoni G, Maiti D. Recent advances in cobalt-catalysed C–H functionalizations. Org Biomol Chem 2019; 17:10119-10141. [DOI: 10.1039/c9ob01994d] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ready availability, low cost and low toxicity of cobalt salts have redirected the attention of researchers away from noble metals, such as Pd, Rh, and Ir, towards Co in the field of C–H functionalisation.
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Affiliation(s)
| | | | - Pravas Dolui
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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34
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Yu Y, Wu Q, Liu D, Yu L, Tan Z, Zhu G. Synthesis of 1-naphthols via Cp*Co(iii)-catalyzed C–H activation and cyclization of sulfoxonium ylides with alkynes. Org Chem Front 2019. [DOI: 10.1039/c9qo00994a] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A highly practical synthesis of 1-naphthols was developed via Cp*Co(iii)-catalyzed C–H activation and cyclization between sulfoxonium ylides and alkynes.
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Affiliation(s)
- Yongqi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qianlong Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Da Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Lin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Gangguo Zhu
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
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