1
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Brufani G, Di Erasmo B, Li CJ, Vaccaro L. Csp 2-H functionalization of phenols: an effective access route to valuable materials via Csp 2-C bond formation. Chem Sci 2024; 15:3831-3871. [PMID: 38487228 PMCID: PMC10935747 DOI: 10.1039/d4sc00687a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 02/02/2024] [Indexed: 03/17/2024] Open
Abstract
In the vast majority of top-selling pharmaceutical and industrial products, phenolic structural motifs are highly prevalent. Non-functionalized simple phenols serve as building blocks in the synthesis of value-added chemicals. It is worth mentioning that lignin, being the largest renewable biomass source of aromatic building blocks in nature, mainly consists of phenolic units, which enable the production of structurally diverse phenols. Given their remarkable applicability in the chemical value chain, many efforts have been devoted to increasing the molecular complexity of the phenolic scaffold. Among the key techniques, direct functionalization of Csp2-H is a powerful tool, enabling the construction of new Csp2-C bonds in an economical and atomic manner. Herein we present and summarize the large plethora of direct Csp2-H functionalization methods that enables scaffold diversification of simple, unprotected phenols, leading to the formation of new Csp2-C bonds. In this review article, we intend to summarize the contributions that appeared in the literature mainly in the last 5 years dealing with the functionalization of unprotected phenols, both catalytic and non-catalytic. Our goal is to highlight the key findings and the ongoing challenges in the stimulating and growing research dedicated to the development of new protocols for the valorization of phenols.
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Affiliation(s)
- Giulia Brufani
- Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia Via Elce di Sotto 8 06123 Perugia Italy https://greensoc.chm.unipg.it
| | - Benedetta Di Erasmo
- Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia Via Elce di Sotto 8 06123 Perugia Italy https://greensoc.chm.unipg.it
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal QC H3A0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal QC H3A0B8 Canada
| | - Luigi Vaccaro
- Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia Via Elce di Sotto 8 06123 Perugia Italy https://greensoc.chm.unipg.it
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2
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More DA, Shirsath SR, Muthukrishnan M. Metal- and Photocatalyst-Free, Visible-Light-Initiated C3 α-Aminomethylation of Quinoxalin-2(1 H)-ones via Electron Donor-Acceptor Complexes. J Org Chem 2023; 88:13339-13350. [PMID: 37651188 DOI: 10.1021/acs.joc.3c01249] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
We report a metal- and photocatalyst-free C3 α-aminomethylation of quinoxalin-2(1H)-ones with N-alkyl-N-methylanilines. The reaction proceeds through the formation of a photoactivated electron donor-acceptor complex between quinoxalin-2(1H)-ones and N-alkyl-N-methylanilines. The present method provides a mild and environmentally friendly protocol that exhibits good atom economy and excellent functional group tolerance to obtain a library of biologically significant C3 α-aminomethylated quinoxalin-2(1H)-ones in good yields.
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Affiliation(s)
- Devidas A More
- CSIR-National Chemical Laboratory, Division of Organic Chemistry, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sachin R Shirsath
- CSIR-National Chemical Laboratory, Division of Organic Chemistry, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - M Muthukrishnan
- CSIR-National Chemical Laboratory, Division of Organic Chemistry, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Wei W, Cheung KK, Lin R, Kong LC, Chan KL, Sung HHY, Williams ID, Tong R, Lin Z, Jia G. [2+2+1+1] Cycloaddition for de novo Synthesis of Densely Functionalized Phenols. Angew Chem Int Ed Engl 2023; 62:e202307251. [PMID: 37428447 DOI: 10.1002/anie.202307251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/11/2023]
Abstract
A unique benzannulation strategy for regioselective de novo synthesis of densely functionalized phenols is described. Through metal-mediated formal [2+2+1+1] cycloaddition of two different alkynes and two molecules of CO, a series of densely functionalized phenols were obtained. The benzannulation strategy allows efficient regioselective installation up to five different substituents on a phenol ring. The resulting phenols have a substitution pattern different from those obtained from Dötz and Danheiser benzannulations.
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Affiliation(s)
- Wei Wei
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ka Key Cheung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ran Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Lam Cheung Kong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ka Lok Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Herman H Y Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ian D Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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4
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Li Y, Huang Y, Li Z, Sun J. Recent Advances in Regioselective C-H Bond Functionalization of Free Phenols. Molecules 2023; 28:molecules28083397. [PMID: 37110630 PMCID: PMC10143084 DOI: 10.3390/molecules28083397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Phenols are important readily available synthetic building blocks and starting materials for organic synthetic transformations, which are widely found in agrochemicals, pharmaceuticals, and functional materials. The C-H functionalization of free phenols has proven to be an extremely useful tool in organic synthesis, which provides efficient increases in phenol molecular complexity. Therefore, approaches to functionalizing existing C-H bonds of free phenols have continuously attracted the attention of organic chemists. In this review, we summarize the current knowledge and recent advances in ortho-, meta-, and para-selective C-H functionalization of free phenols in the last five years.
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Affiliation(s)
- Yanan Li
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yekai Huang
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zhi Li
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jianan Sun
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, China
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5
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Zhu X, Liu X, Xia F, Liu L. Theoretical Study on the Copper-Catalyzed ortho-Selective C-H Functionalization of Naphthols with α-Phenyl- α-Diazoesters. Molecules 2023; 28:1767. [PMID: 36838753 PMCID: PMC9960375 DOI: 10.3390/molecules28041767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/07/2023] [Accepted: 02/11/2023] [Indexed: 02/16/2023] Open
Abstract
The aromatic C(sp2)-H functionalization of unprotected naphthols with α-phenyl-α-diazoesters under mild conditions catalyzed by CuCl and CuCl2 exhibits high efficiency and unique ortho-selectivity. In this study, the combination of density functional theory (DFT) calculations and experiments is employed to investigate the mechanism of C-H functionalization, which reveals the fundamental origin of the site-selectivity. It explains that CuCl-catalyzed ortho-selective C-H functionlization is due to the bimetallic carbene, which differs from the reaction catalyzed by CuCl2 via monometallic carbene. The results demonstrate the function of favourable H-bond interactions on the site- and chemo-selectivity of reaction through stabilizing the rate-determining transition states in proton (1,3)-migration.
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Affiliation(s)
- Xiaoli Zhu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xunshen Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
| | - Fei Xia
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
- NYU-ECNU Center for Computational Chemistry at New York University, East China Normal University, 3663 Zhongshan Road, Shanghai 200062, China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
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6
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Zhou ZH, Wang B, Ding Y, Loh TP, Tian JS. Aqueous C-H aminomethylation of phenols by iodine catalysis. Chem Commun (Camb) 2022; 59:223-226. [PMID: 36484257 DOI: 10.1039/d2cc05746h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
A transition-metal-free strategy regarding an iodine-sodium percarbonate catalysis to achieve the ortho-aminomethylation of phenols in aqueous media has been developed. This method can effectively broaden a wide range of phenols, tolerate sensitive functional groups, and achieve the late-stage functionalization of ten functional molecules that contain phenolic structures.
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Affiliation(s)
- Zhi-Hua Zhou
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China.
| | - Ben Wang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China.
| | - Yao Ding
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Nanjing Tech University (NanjingTech), Nanjing 211816, China.,College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhenzhou, 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology (CCEB), Nanyang Technological University, Singapore 637371, Singapore.
| | - Jie-Sheng Tian
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China.
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7
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Liu X, Wang Y, Wu S, Jiang W, Zeng R, Cao H. Four-Component Cyclization of Naphthol/Thionaphthol/Naphthylamine, Formaldehyde, and DBU in Water. J Org Chem 2022; 87:13819-13827. [PMID: 36223276 DOI: 10.1021/acs.joc.2c01532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical and environmentally benign cascade multicomponent condensation of naphthol/thionaphthol/naphthylamine, formaldehyde, and DBU in water without any catalysts has been achieved. A wide variety of dihydrooxazine, dihydrothiazine, and tetrahydrobenzoquinazoline derivatives N-substituted with a tether bearing a caprolactam unit were afforded in moderate to good yields. The advantages of being cost-effective, metal-free, and easily handled and the use of water as medium made this protocol conform with the principle of green synthesis.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Yuhan Wang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Songxin Wu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Wenxuan Jiang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Ruyi Zeng
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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8
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Chowdhury R. Eosin-Y/Cu(OAc) 2-catalyzed aerobic oxidative coupling reactions of glycine esters in the dark. Org Biomol Chem 2022; 20:5387-5392. [PMID: 35748811 DOI: 10.1039/d2ob00678b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic aerobic oxidative coupling reactions of glycine esters with β-keto acids, indoles, naphthols, and pyrrole have been realized at ambient temperature via the manipulation of the ground state reactivity of eosin-Y in the presence of Cu(OAc)2 in the dark. This method delivers structurally diverse unnatural amino acid derivatives under mild reaction conditions. UV-vis absorption spectroscopy, cyclic voltammetry, X-ray photoelectron spectroscopy, high-resolution mass spectrometry, and control experiments were performed to formulate a plausible mechanistic pathway. The step economy, broad substrate scope, use of air as a green oxidant, and operationally simple set-up make this protocol highly appealing for both academic and industrial applications.
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Affiliation(s)
- Raghunath Chowdhury
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India. .,Homi Bhabha National Institute, Anushaktingar, Mumbai-94, India
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9
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Cuadros S, Rosso C, Barison G, Costa P, Kurbasic M, Bonchio M, Prato M, Filippini G, Dell’Amico L. The Photochemical Activity of a Halogen-Bonded Complex Enables the Microfluidic Light-Driven Alkylation of Phenols. Org Lett 2022; 24:2961-2966. [PMID: 35437017 PMCID: PMC9062880 DOI: 10.1021/acs.orglett.2c00604] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Indexed: 12/29/2022]
Abstract
A mild light-driven protocol for the direct alkylation of phenols is reported. The process is driven by the photochemical activity of a halogen-bonded complex formed upon complexation of the in situ generated electron-rich phenolate anion with the α-iodosulfone. The reaction proceeds rapidly (10 min) under microfluidic conditions, delivering a wide variety of ortho-alkylated products (27 examples, up to 97% yield, >20:1 regioselectivity, on a gram scale), including densely functionalized bioactive phenol derivatives.
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Affiliation(s)
- Sara Cuadros
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Cristian Rosso
- Department
of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence
for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Giorgia Barison
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Paolo Costa
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Marina Kurbasic
- Department
of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence
for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Marcella Bonchio
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
- INSTM
UdR, Instituto per la Tecnologia delle Membrane,
ITM-CNR, UoS di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Maurizio Prato
- Department
of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence
for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
- Center
for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014 Donostia, San Sebastián, Spain
- Basque
Fdn Sci, Ikerbasque, 48013 Bilbao, Spain
| | - Giacomo Filippini
- Department
of Chemical and Pharmaceutical Sciences, CENMAT, Center of Excellence
for Nanostructured Materials, INSTM UdR, Trieste, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Luca Dell’Amico
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
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10
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Lin D, Jiang S, Zhang A, Wu T, Qian Y, Shao Q. Structural derivatization strategies of natural phenols by semi-synthesis and total-synthesis. NATURAL PRODUCTS AND BIOPROSPECTING 2022; 12:8. [PMID: 35254538 PMCID: PMC8901917 DOI: 10.1007/s13659-022-00331-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/15/2022] [Indexed: 05/08/2023]
Abstract
Structural derivatization of natural products has been a continuing and irreplaceable source of novel drug leads. Natural phenols are a broad category of natural products with wide pharmacological activity and have offered plenty of clinical drugs. However, the structural complexity and wide variety of natural phenols leads to the difficulty of structural derivatization. Skeleton analysis indicated most types of natural phenols can be structured by the combination and extension of three common fragments containing phenol, phenylpropanoid and benzoyl. Based on these fragments, the derivatization strategies of natural phenols were unified and comprehensively analyzed in this review. In addition to classical methods, advanced strategies with high selectivity, efficiency and practicality were emphasized. Total synthesis strategies of typical fragments such as stilbenes, chalcones and flavonoids were also covered and analyzed as the supplementary for supporting the diversity-oriented derivatization of natural phenols.
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Affiliation(s)
- Ding Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China.
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China.
| | - Senze Jiang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Ailian Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Tong Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Yongchang Qian
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China
| | - Qingsong Shao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China.
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A & F University, Hangzhou, 311300, China.
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11
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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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12
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Zhang H, Wang W, Wang B, Tan H, Jiao N, Song S. Electrophilic amidomethylation of arenes with DMSO/MeCN reagents. Org Chem Front 2022. [DOI: 10.1039/d2qo00181k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient electrophilic amidomethylation of aromatics was described with DMSO as the CH2 source and nitrile as the nitrogen source.
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Affiliation(s)
- Hongliang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Weijin Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Bingding Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Hui Tan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Jiangsu 210023, China
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13
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Abstract
A Cu-catalyzed straightforward synthesis of benzoxazoles from free phenols and cyclic oxime esters is reported. The mild reaction conditions tolerate various electron-withdrawing and electron-donating functional groups on both substrates, affording benzoxazoles in moderate to good yields. With this protocol, large-scale syntheses of Ezutromid and Flunoxaprofe in one or two steps are demonstrated. A catalytic mechanism, which includes Cu-catalyzed amination via inner-sphere electron transfer and consequent annulation, is proposed.
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Affiliation(s)
- Zheng-Hai Wang
- Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, China
| | - Dong-Hui Wang
- Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, China.,Department of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Boulevard, Nanjing 210023, China
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14
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Shi J, Wang Y, Bu Q, Liu B, Dai B, Liu N. Cr-Catalyzed Direct ortho-Aminomethylation of Phenols. J Org Chem 2021; 86:17567-17580. [PMID: 34874723 DOI: 10.1021/acs.joc.1c01406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We developed a Cr-catalyzed strategy for the regioselective formation of Csp2-Csp3 bonds through the direct and efficient ortho-aminomethylation of N,N-dimethylanilines with phenols. The approach showed excellent site selectivity at the ortho-position of phenols and accommodated broad substrate scope and functional group compatibility for both N,N-dimethylanilines and phenols. Mechanistic studies revealed that the direct ortho-aminomethylation between N,N-dimethylanilines and phenols occurred via an ionic mechanism.
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Affiliation(s)
- Junbin Shi
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, China
| | - Yubin Wang
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, China
| | - Qingqing Bu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, China
| | - Binyuan Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, China.,Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Bin Dai
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, China
| | - Ning Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, China
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15
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Fu Y, Li R, Li M, Zhang Y, Zhang Y, Yang T. Photocatalyzed Dehydroxylative Amination of Phenols: A Ring-Expansion Approach for Medium-Sized Benzolactams. Org Lett 2021; 23:8317-8321. [PMID: 34633187 DOI: 10.1021/acs.orglett.1c03053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient photopromoted dehydroxylative ring-expansion approach to eight-membered benzolactams that employ phthalocyanine iron(II) as the photosensitizer has been developed. This cascade reaction protocol, featuring a visible-light-promoted dehydroxylative amination and oxidative ring-expansion lactamization of 4-hydroxyphenols with N-alkyl-4-piperidinones, provides a green and reliable approach to a diverse array of valuable eight-membered benzolactams with high chemo- and regioselectivity.
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Affiliation(s)
- Ying Fu
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Ruijuan Li
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Mingpeng Li
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Yongyan Zhang
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Yuxia Zhang
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Tianyu Yang
- Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
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16
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Xie J, Chen M, Peng LL, Wu JQ, Zhou Q, Zhou CS, Xiong BQ, Liu Y. Facile preparation of Cu(II)-modified nitrogen-rich covalent organic polymer for cross-dehydrogenative ortho-aminomethylation of phenols. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2021.106348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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17
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Youn SW, Cho CG. Transition-metal-catalyzed ortho-selective C-H functionalization reactions of free phenols. Org Biomol Chem 2021; 19:5028-5047. [PMID: 34027964 DOI: 10.1039/d1ob00506e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Phenols are important readily available chemical feedstocks and versatile synthetic building blocks for diverse synthetic transformations. Their motifs are prevalent in a diverse array of natural products, pharmaceuticals, functional materials, and privileged chiral ligands. Consequently, the development of facile and direct site-selective C-H bond functionalization of free phenols is of great importance and considerable interest to both industry and academic research. Over the past decades, transition-metal-catalyzed C-H bond functionalization has become as a powerful synthetic tool in organic synthesis. In this review, we provide a brief overview of recent progress in the transition-metal-catalyzed direct ortho-selective C-H functionalization of free phenols.
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Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
| | - Cheon-Gyu Cho
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
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18
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Qiu X, Xu L, Wang S, Dai Y, Feng Y, Gong C, Tao C. Copper-catalyzed borylative aminomethylation of C-C double and triple bonds with N,O-acetal. Chem Commun (Camb) 2021; 57:3279-3282. [PMID: 33651061 DOI: 10.1039/d1cc00093d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-catalyzed borylaminomethylation of multiple carbon-carbon bonds with N,O-acetal and bis(pinacolato)diboron has been disclosed that offers efficient and expedient access to γ-amino boronates. The products contain a valuable amine and boronate, which are amenable to further elaboration, and have versatile synthetic utilities.
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Affiliation(s)
- Xianfan Qiu
- School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, China.
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19
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Liu Z, Li G, Yao T, Zhang J, Liu L. Triflic Acid‐Catalyzed Chemo‐ and Site‐Selective C−H Bond Functionalization of Phenols With 1,3‐Dienes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100181] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zhenli Liu
- School of Chemistry and Molecular Engineering East China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Guanghui Li
- School of Chemistry and Molecular Engineering East China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Tengfei Yao
- School of Chemistry and Molecular Engineering East China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Junliang Zhang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 People's Republic of China
| | - Lu Liu
- School of Chemistry and Molecular Engineering East China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development East China Normal University Shanghai 200062 People's Republic of China
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20
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Zhang Y, Liang Y, Zhao X. Chiral Selenide-Catalyzed, Highly Regio- and Enantioselective Intermolecular Thioarylation of Alkenes with Phenols. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00296] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Zhang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Yaoyu Liang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Xiaodan Zhao
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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21
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Ankade SB, Shabade AB, Soni V, Punji B. Unactivated Alkyl Halides in Transition-Metal-Catalyzed C–H Bond Alkylation. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05580] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shidheshwar B. Ankade
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Anand B. Shabade
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Vineeta Soni
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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22
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Yu J, Li C, Zeng H. Dearomatization‐Rearomatization Strategy for
ortho
‐Selective Alkylation of Phenols with Primary Alcohols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jianjin Yu
- The State Key Laboratory of Applied Organic Chemistry Lanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Chao‐Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry Lanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
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23
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Lippa RA, Battersby DJ, Murphy JA, Barrett TN. Synthesis of Arylethylamines via C(sp 3)-C(sp 3) Palladium-Catalyzed Cross-Coupling. J Org Chem 2021; 86:3583-3604. [PMID: 33513016 DOI: 10.1021/acs.joc.0c02958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Substituted arylethylamines represent a key structural motif in natural, pharmaceutical, and agrochemical compounds. Access to such scaffolds has been the subject of long-standing synthetic interest. Herein, we report the synthesis of such scaffolds via a palladium-catalyzed C(sp3)-C(sp3) coupling between (chloromethyl)aryls and air-/moisture-stable N,N-dialkylaminomethyltrifluoroborate salts. Rapid hit identification was achieved using microscale high-throughput experimentation and was followed by millimolar-scale reaction parameter optimization. A range of structurally and electronically varied arylethylamine products were obtained in moderate to excellent yields (27-96%, >60 examples). The reaction mechanism is proposed to proceed via formation of a trialkylbenzylammonium species prior to oxidative addition.
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Affiliation(s)
- Rhys A Lippa
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - David J Battersby
- Medicinal Science & Technology, GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, U.K
| | - John A Murphy
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Tim N Barrett
- Medicinal Science & Technology, GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, U.K
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24
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Tang Z, Li D, Yue Y, Peng D, Liu L. Brønsted acid catalysed chemo- and ortho-selective aminomethylation of phenol. Org Biomol Chem 2021; 19:5777-5781. [PMID: 34156058 DOI: 10.1039/d1ob00820j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have developed a Brønsted acid catalysed highly ortho-selective functionalization of free phenols with readily available N,O-acetals under mild conditions, furnishing various corresponding aminomethylated phenol products in moderate to excellent yields. The salient features of this transformation include mild conditions, good substrate scope, excellent ortho-selectivity, high efficiency, and ease of further transformation.
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Affiliation(s)
- Zhiqiong Tang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China.
| | - Dongdong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China.
| | - Yidi Yue
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China.
| | - Dan Peng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China.
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China. and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, P. R. China
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25
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Yu J, Li C, Zeng H. Dearomatization‐Rearomatization Strategy for
ortho
‐Selective Alkylation of Phenols with Primary Alcohols. Angew Chem Int Ed Engl 2020; 60:4043-4048. [PMID: 33166067 DOI: 10.1002/anie.202010845] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/30/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Jianjin Yu
- The State Key Laboratory of Applied Organic Chemistry Lanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Chao‐Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry Lanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
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26
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Zhao JG, Wang DH. β-Selective Cu(II)-Catalyzed Dehydrogenative Enamination of Alkylbenzenes. Org Lett 2020; 22:9473-9477. [PMID: 33237776 DOI: 10.1021/acs.orglett.0c03430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A Cu(II)-catalyzed dehydrogenative enamination that couples alkyl-substituted electron-rich arenes and N-fluorobenzenesulfonimide to forge enamine products is reported. This C-N bond-forming procedure occurs selectively at the β-position of the alkyl group. Both aniline and anisole derivatives are tolerated under these conditions, to afford styryl amines. A reaction mechanism involving quinone methide and styrene intermediates is proposed.
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Affiliation(s)
- Jian-Guo Zhao
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), 345 Lingling Rd., Shanghai 200032, China
| | - Dong-Hui Wang
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), 345 Lingling Rd., Shanghai 200032, China.,School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Rd., Nanjing 210023, People's Republic of China
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27
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Hu QL, Hou KQ, Li J, Ge Y, Song ZD, Chan ASC, Xiong XF. Silanol: a bifunctional group for peptide synthesis and late-stage functionalization. Chem Sci 2020; 11:6070-6074. [PMID: 34094099 PMCID: PMC8159358 DOI: 10.1039/d0sc02439b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 05/24/2020] [Indexed: 12/27/2022] Open
Abstract
Chemical modification of a specific amino acid residue on peptides represents an efficient strategy to improve their pharmacokinetics and facilitates the potential to achieve post-synthetic diversification of peptides. Herein, we reported the first Pd-catalyzed late-stage ortho-olefination of Tyr residues on peptides with high chemo- and site-selectivity, by employing the easily attached and removable silanol as a bifunctional protecting group and directing group. Up to hexapeptides with variation on amino acid sequences or locations of the Tyr residue and different olefins were compatible with this protocol, which enriched the chemical toolbox for late-stage modification via C(sp2)-H functionalization. Furthermore, the orthogonal protection strategies of Tyr were also developed and could be applied to SPPS.
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Affiliation(s)
- Qi-Long Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
| | - Ke-Qiang Hou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
| | - Jian Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
| | - Yang Ge
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
| | - Zhen-Dong Song
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
| | - Albert S C Chan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
| | - Xiao-Feng Xiong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University 510006 Guangzhou Guangdong P. R. China
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28
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Shao N, Yao Z, Wang D. Cu(II)‐Catalyzed
Ortho
‐Selective Amination of Simple Phenols with
O
‐Benzoylhydroxylamines. Isr J Chem 2020. [DOI: 10.1002/ijch.201900171] [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)
- Nan‐Qi Shao
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional MoleculesCenter for Excellence in Molecular SynthesisUniversity of Chinese Academy of Sciences; Shanghai Institute of Organic Chemistry, CAS. 345 Lingling Rd. Shanghai 200032 China
| | - Zhi‐Li Yao
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional MoleculesCenter for Excellence in Molecular SynthesisUniversity of Chinese Academy of Sciences; Shanghai Institute of Organic Chemistry, CAS. 345 Lingling Rd. Shanghai 200032 China
| | - Dong‐Hui Wang
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional MoleculesCenter for Excellence in Molecular SynthesisUniversity of Chinese Academy of Sciences; Shanghai Institute of Organic Chemistry, CAS. 345 Lingling Rd. Shanghai 200032 China
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29
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Zeng H, Yu J, Li CJ. Palladium-catalyzed aerobic synthesis of ortho-substituted phenols from cyclohexanones and primary alcohols. Chem Commun (Camb) 2020; 56:1239-1242. [DOI: 10.1039/c9cc09347h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An aerobic palladium catalyzed site-specific synthesis of ortho-substituted phenols from cyclohexanones and primary alcohols via an oxidation/aldol/dehydration/aromatization process has been developed.
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Affiliation(s)
- Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Jianjin Yu
- The State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis
- McGill University
- Montreal
- Canada
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30
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Li S, Shan QC, Hu LM, Ma XQ, Hu XH. Merging alkenyl C–H activation with the ring-opening of 1,2-oxazetidines: ruthenium-catalyzed aminomethylation of enamides. Chem Commun (Camb) 2020; 56:7969-7972. [DOI: 10.1039/d0cc03081c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
1,2-Oxazetidines have been utilized as formaldimine precursors for the direct aminomethylation of enamides under a Ru(ii) species.
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Affiliation(s)
- Song Li
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Qi-Chao Shan
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Lu-Min Hu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xue-Qing Ma
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xu-Hong Hu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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31
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Ma B, Tang Z, Zhang J, Liu L. Copper-catalysed ortho-selective C–H bond functionalization of phenols and naphthols with α-aryl-α-diazoesters. Chem Commun (Camb) 2020; 56:9485-9488. [DOI: 10.1039/d0cc04495d] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An unprecedented CuCl2-catalysed chemo- and ortho-selective C–H bond functionalization of phenols and naphthols with diazoesters has been developed.
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Affiliation(s)
- Ben Ma
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
| | - Zhiqiong Tang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Junliang Zhang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
| | - Lu Liu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
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32
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Zhou P, Pan Y, Tan H, Liu W. I 2-DMSO-H 2O: A Metal-Free Combination System for the Oxidative Addition of Alkynes to Access ( E)-α-Iodo-β-methylsulfonylalkenes. J Org Chem 2019; 84:15662-15668. [PMID: 31663739 DOI: 10.1021/acs.joc.9b02302] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A simple and green reaction was discovered for iodization-methylsulfoxidation of alkynes to access (E)-α-iodo-β-methylsulfonylalkenes. This is the first report for the synthesis of iodovinyl methylsulfones by employing alkynes to react with molecular iodine (I2), dimethyl sulfoxide (DMSO), and H2O. Additionally, this protocol represents a new avenue for utilizing DMSO as the source of the -SO2Me group and H2O as the "O" source for the construction of the -SO2Me group from DMSO, which is a valuable finding.
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Affiliation(s)
- Peng Zhou
- College of Chemistry , Guangdong University of Petrochemical Technology , 2 Guandu Road , Maoming 525000 , P. R. China
| | - Yupeng Pan
- Shenzhen Grubbs Institute , Southern University of Science and Technology (SUSTech) , Shenzhen 518055 , P. R. China
| | - Hua Tan
- College of Chemistry , Guangdong University of Petrochemical Technology , 2 Guandu Road , Maoming 525000 , P. R. China
| | - Weibing Liu
- College of Chemistry , Guangdong University of Petrochemical Technology , 2 Guandu Road , Maoming 525000 , P. R. China
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33
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Zhao XM, Huang EL, Zhu YS, Li J, Song B, Zhu X, Hao XQ. Oxidative sulfonamidomethylation of imidazopyridines utilizing methanol as the main C1 source. Org Biomol Chem 2019; 17:4869-4878. [PMID: 31041985 DOI: 10.1039/c9ob00596j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient one pot, three component synthesis of C3 sulfonamidomethylated imidazopyridines has been disclosed under metal-free conditions, which utilized the commercially available and renewable reagent methanol as the main methylene source. A wide range of substituted imidazopyridines and sulfamides/amines were well tolerated to afford the corresponding products in up to 92% yield. In the isotopic labelling experiment, it was found that a minor part of the methylene also originated from DTBP. Moreover, the radical scavenger reactions were conducted, which suggested that a free-radical mechanism was probably not involved. The current methodology featured several advantages, including broad substrate scope, good functional group tolerance and high reaction efficiency.
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Affiliation(s)
- Xue-Mei Zhao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
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34
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Murai M, Yamamoto M, Takai K. Mechanistic Insights into Rhenium-Catalyzed Regioselective C-Alkenylation of Phenols with Internal Alkynes. Chemistry 2019; 25:15189-15197. [PMID: 31532028 DOI: 10.1002/chem.201903910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/17/2019] [Indexed: 11/12/2022]
Abstract
A (μ-aryloxo)rhenium complex was isolated and confirmed as a key precatalyst for rhenium-catalyzed ortho-alkenylation (C-alkenylation) of unprotected phenols with alkynes. The reaction exclusively provided ortho-alkenylphenols; the formation of para or multiply alkenylated phenols and hydrophenoxylation (O-alkenylation) products was not observed. Several mechanistic experiments excluded a classical Friedel-Crafts-type mechanism, leading to the proposed phenolic hydroxyl group assisted electrophilic alkenylation as the most plausible reaction mechanism. For this purpose, the use of rhenium, a metal between the early and late transition metals in the periodic table, was key for the activation of both the soft carbon-carbon triple bond of the alkyne and the hard oxygen atom of the phenol, at the same time. ortho-Selective alkenylation with allenes also provided the corresponding adducts with a substitution pattern different from that obtained by the addition reaction with alkynes.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Masaki Yamamoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
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35
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Ostacolo C, Di Sarno V, Musella S, Ciaglia T, Vestuto V, Pepe G, Merciai F, Campiglia P, Gomez Monterrey IM, Bertamino A. An Efficient Approach to Aromatic Aminomethylation Using Dichloromethane as Methylene Source. Front Chem 2019; 7:568. [PMID: 31457005 PMCID: PMC6700257 DOI: 10.3389/fchem.2019.00568] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 07/26/2019] [Indexed: 01/30/2023] Open
Abstract
Ultrasound-promoted N-aminomethylation of indoles can be achieved in basic medium using sodium hydride and dichloromethane (DCM) as C1 donor source. This innovative amino methylation protocol results in good to excellent yields of multifunctional indole derivatives. The procedure is also applicable to other aza-heterocyclic compounds and, interestingly, affords direct access to aminomethyl-substituted aryl alcohols.
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Affiliation(s)
- Carmine Ostacolo
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | | | | | - Tania Ciaglia
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | | | - Giacomo Pepe
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | | | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Fisciano, Italy.,Fondazione EBRIS, Salerno, Italy
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36
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Yao ZL, Wang L, Shao NQ, Guo YL, Wang DH. Copper-Catalyzed ortho-Selective Dearomative C–N Coupling of Simple Phenols with O-Benzoylhydroxylamines. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01317] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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37
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Beyond Friedel and Crafts: Directed Alkylation of C−H Bonds in Arenes. Angew Chem Int Ed Engl 2019; 58:7202-7236. [DOI: 10.1002/anie.201806629] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/13/2018] [Indexed: 11/07/2022]
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38
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Takamatsu K, Hayashi Y, Kawauchi S, Hirano K, Miura M. Copper-Catalyzed Regioselective C–H Amination of Phenol Derivatives with Assistance of Phenanthroline-Based Bidentate Auxiliary. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01145] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Kazutaka Takamatsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshihiro Hayashi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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39
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Li S, Shi P, Liu RH, Hu XH, Loh TP. Cobalt-Catalyzed N–O and C–C Bond Cleavage in 1,2-Oxazetidines: Solvent-Controlled C–H Aminomethylation and Hydroxymethylation of Heteroarenes. Org Lett 2019; 21:1602-1606. [DOI: 10.1021/acs.orglett.9b00141] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Song Li
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Pengfei Shi
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Rui-Hua Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Xu-Hong Hu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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40
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Evano G, Theunissen C. Jenseits von Friedel und Crafts: dirigierte Alkylierung von C‐H‐Bindungen in Arenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201806629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie OrganiqueService de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
| | - Cédric Theunissen
- Laboratoire de Chimie OrganiqueService de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
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41
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Trammell R, Rajabimoghadam K, Garcia-Bosch I. Copper-Promoted Functionalization of Organic Molecules: from Biologically Relevant Cu/O 2 Model Systems to Organometallic Transformations. Chem Rev 2019; 119:2954-3031. [PMID: 30698952 DOI: 10.1021/acs.chemrev.8b00368] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Copper is one of the most abundant and less toxic transition metals. Nature takes advantage of the bioavailability and rich redox chemistry of Cu to carry out oxygenase and oxidase organic transformations using O2 (or H2O2) as oxidant. Inspired by the reactivity of these Cu-dependent metalloenzymes, chemists have developed synthetic protocols to functionalize organic molecules under enviormentally benign conditions. Copper also promotes other transformations usually catalyzed by 4d and 5d transition metals (Pd, Pt, Rh, etc.) such as nitrene insertions or C-C and C-heteroatom coupling reactions. In this review, we summarized the most relevant research in which copper promotes or catalyzes the functionalization of organic molecules, including biological catalysis, bioinspired model systems, and organometallic reactivity. The reaction mechanisms by which these processes take place are discussed in detail.
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Affiliation(s)
- Rachel Trammell
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | | | - Isaac Garcia-Bosch
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
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42
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Wang G, Gao L, Chen H, Liu X, Cao J, Chen S, Cheng X, Li S. Chemoselective Borane‐Catalyzed Hydroarylation of 1,3‐Dienes with Phenols. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guoqiang Wang
- Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Liuzhou Gao
- Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Hui Chen
- Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Xueting Liu
- Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Jia Cao
- Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Shengda Chen
- School of Minerals Processing and BioengineeringCentral South University Changsha 410083 Hunan China
| | - Xu Cheng
- Institute of Chemistry and Biomedical SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Shuhua Li
- Institute of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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43
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Wang G, Gao L, Chen H, Liu X, Cao J, Chen S, Cheng X, Li S. Chemoselective Borane-Catalyzed Hydroarylation of 1,3-Dienes with Phenols. Angew Chem Int Ed Engl 2019; 58:1694-1699. [PMID: 30515921 DOI: 10.1002/anie.201811729] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Indexed: 12/18/2022]
Abstract
A B(C6 F5 )3 -catalyzed hydroarylation of a series of 1,3-dienes with various phenols has been established through a combination of theoretical and experimental investigations, affording structurally diverse ortho-allyl phenols. DFT calculations show that the reaction proceeds through a borane-promoted protonation/Friedel-Crafts pathway involving a π-complex of a carbocation-anion contact ion pair. This protocol features simple and mild reaction conditions, broad functional-group tolerance, and low catalyst loading. The obtained ortho-allyl phenols could be further converted into flavan derivatives using B(C6 F5 )3 with good cis diastereoselectivity. Furthermore, this transformation was applied in the late-stage modification of pharmaceutical compounds.
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Affiliation(s)
- Guoqiang Wang
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Liuzhou Gao
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Hui Chen
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Xueting Liu
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Jia Cao
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Shengda Chen
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, Hunan, China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Shuhua Li
- Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
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44
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Kang Z, Wang Y, Zhang D, Wu R, Xu X, Hu W. Asymmetric Counter-Anion-Directed Aminomethylation: Synthesis of Chiral β-Amino Acids via Trapping of an Enol Intermediate. J Am Chem Soc 2019; 141:1473-1478. [DOI: 10.1021/jacs.8b12832] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Zhenghui Kang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- Shanghai Engineering
Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Yongheng Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Dan Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ruibo Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xinfang Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhao Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- Shanghai Engineering
Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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45
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Ma H, Wang T, Gao C, Li G, Zhang M, Wang Q. Pd( ii)/Ag( i)-Cocatalyzed ortho direct arylation of O-phenylcarbamates with pinacol aryl boronates. Org Chem Front 2019. [DOI: 10.1039/c9qo00227h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ortho direct arylation of O-phenyl carbamates using aryl boronates as coupling partners has been realized for the first time using Pd(OAc)2 and AgOAc as co-catalyst.
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Affiliation(s)
- Huijun Ma
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC)
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
| | - Tao Wang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC)
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
| | - Chenying Gao
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC)
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
| | - Guangshen Li
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC)
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
| | - Minghao Zhang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC)
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
| | - Qifeng Wang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC)
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
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46
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Youn SW, Kim YH, Jo YH. Palladium‐Catalyzed Regioselective Synthesis of 1‐Hydroxycarbazoles Under Aerobic Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural SciencesHanyang University Seoul 04763 Korea
| | - Young Ho Kim
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural SciencesHanyang University Seoul 04763 Korea
| | - Yoon Hyung Jo
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural SciencesHanyang University Seoul 04763 Korea
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47
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Affiliation(s)
- Zheng Huang
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
| | - Jean-Philip Lumb
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
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48
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1441] [Impact Index Per Article: 240.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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49
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Lei WL, Feng KW, Wang T, Wu LZ, Liu Q. Eosin Y- and Copper-Catalyzed Dark Reaction To Construct Ene-γ-Lactams. Org Lett 2018; 20:7220-7224. [DOI: 10.1021/acs.orglett.8b03147] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wen-Long Lei
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Kai-Wen Feng
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Tao Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qiang Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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50
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Li ZZ, Yu J, Wang LN, Chen SL, Sheng RL, Tang S. Cascade radical cyclization/cross-coupling of halobenzamides by synergistic Cu/Fe catalysis: An access to 7-tert-alkylated isoquinolinediones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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