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Abstract
The oxidation of alcohols to the corresponding carbonyl products is an important organic transformation and the products are used in a variety of applications. The development of catalytic methods for selective alcohol oxidation have garnered significant attention in an attempt to find a more sustainable method without any limitations. Copper, in combination with 2,2,6,6-tetramethyl-1-piperidine N-oxyl (TEMPO) and supported by organic ligands, have emerged as the most effective catalysts for selective alcohol oxidation and these catalyst systems are frequently compared to galactose oxidase (GOase). The efficiency of GOase has led to extensive research to mimic the active sites of these enzymes, leading to a variety of Cu/TEMPO· catalyst systems being reported over the years. The mechanistic pathway by which Cu/TEMPO· catalyst systems operate has been investigated by several research groups, which led to partially contradicting mechanistic description. Due to the disadvantages and limitations of employing TEMPO· as co-catalyst, alternative nitroxyl radicals or in situ formed radicals, as co-catalysts, have been successfully evaluated in alcohol oxidation. Herein we discuss the development and mechanistic elucidation of Cu/TEMPO· catalyst systems as biomimetic alcohol oxidation catalysts.
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202
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Wan J, Tu Z, Wang Y. Transient and Recyclable Halogenation Coupling (TRHC) for Isoflavonoid Synthesis with Site‐Selective Arylation. Chemistry 2019; 25:6907-6910. [DOI: 10.1002/chem.201901025] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/07/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Zhi Tu
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Yuyun Wang
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
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203
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Mao PF, Zhou LJ, Zheng AQ, Miao CB, Yang HT. Cu(OAc)2-Triggered Cascade Reaction of Malonate-Tethered Acyl Oximes with Indoles, Indole-2-alcohols, and Indole-2-carboxamides. Org Lett 2019; 21:3153-3157. [DOI: 10.1021/acs.orglett.9b00849] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Peng-Fei Mao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Li-Jin Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - An-Qi Zheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China
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204
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Fan Z, Pan Z, Huang L, Cheng J. Copper-Catalyzed Aerobic 6-Endo-Trig Cyclization of β,γ-Unsaturated Hydrazones for the Divergent Synthesis of Dihydropyridazines and Pyridazines. J Org Chem 2019; 84:4236-4245. [PMID: 30883118 DOI: 10.1021/acs.joc.9b00228] [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 divergent synthetic strategy to 1,6-dihydropyridazines and pyridazines through Cu(II)-catalyzed controllable aerobic 6-endo-trig cyclization was developed. The selectivity can be rationally tuned via the judicious choice of reaction solvent. It was found that the 1,6-dihydropyridazines were obtained in moderate to high yields with CH3CN as the reaction solvent, whereas employment of AcOH directly afforded pyridazines in up to 92% yields, probably arising from the oxidation of the in situ generated 1,6-dihydropyridazines.
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Affiliation(s)
- Zhenwei Fan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , 2 Xueyuan Road , Fuzhou 350116 , P. R. China
| | - Zhangjin Pan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , 2 Xueyuan Road , Fuzhou 350116 , P. R. China
| | - Liangsen Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , 2 Xueyuan Road , Fuzhou 350116 , P. R. China
| | - Jiajia Cheng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , 2 Xueyuan Road , Fuzhou 350116 , P. R. China
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205
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Wang L, Zhang Y, Du R, Yuan H, Wang Y, Yao J, Li H. Selective One‐Step Aerobic Oxidation of Cyclohexane to ϵ‐Caprolactone Mediated by
N
‐Hydroxyphthalimide (NHPI). ChemCatChem 2019. [DOI: 10.1002/cctc.201900282] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lingyao Wang
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
| | - Yuanbin Zhang
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
| | - Renfeng Du
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
| | - Haoran Yuan
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
| | - Yongtao Wang
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
| | - Jia Yao
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
| | - Haoran Li
- Department of Chemistry ZJU-NHU United R&D CenterZhejiang University 310027 Hangzhou P. R. China
- State Key Laboratory of Chemical Engineering Department of Chemical and Biological EngineeringZhejiang University 310027 Hangzhou P. R. China
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206
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Chemoselective aerobic oxidation of 2-amino-N-benzylanilines into N-(2-aminophenyl)imines via a nitroxide-free copper catalysis. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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207
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Liu JR, Duan YQ, Zhang SQ, Zhu LJ, Jiang YY, Bi S, Hong X. C–H Acidity and Arene Nucleophilicity as Orthogonal Control of Chemoselectivity in Dual C–H Bond Activation. Org Lett 2019; 21:2360-2364. [DOI: 10.1021/acs.orglett.9b00633] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ji-Ren Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Ye-Qing Duan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Shuo-Qing Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Lu-Jing Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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208
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Morgante P, Dughera S, Ghigo G. Aerobic CuCl2-Catalyzed Dehydrogenative Cross-Coupling of Tertiary Amines. A Combined Computational and Experimental Study. J Phys Chem A 2019; 123:2796-2814. [PMID: 30862163 DOI: 10.1021/acs.jpca.9b00324] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pierpaolo Morgante
- Dipartimento di Chimica, Università di Torino Via Giuria 7, 10125 Torino, Italy
| | - Stefano Dughera
- Dipartimento di Chimica, Università di Torino Via Giuria 7, 10125 Torino, Italy
| | - Giovanni Ghigo
- Dipartimento di Chimica, Università di Torino Via Giuria 7, 10125 Torino, Italy
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209
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De PB, Banerjee S, Pradhan S, Punniyamurthy T. Ru(ii)-Catalyzed C7-acyloxylation of indolines with carboxylic acids. Org Biomol Chem 2019; 16:5889-5898. [PMID: 30070289 DOI: 10.1039/c8ob01603h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ruthenium(ii)-catalyzed site-selective C7-acyloxylation of indolines with carboxylic acids is presented. The substrate scope and functional group tolerance are important practical features. The kinetic isotope studies suggest that C-H bond activation may be the rate-determining step.
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Affiliation(s)
- Pinaki Bhusan De
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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210
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Reed NL, Herman MI, Miltchev VP, Yoon TP. Tandem copper and photoredox catalysis in photocatalytic alkene difunctionalization reactions. Beilstein J Org Chem 2019; 15:351-356. [PMID: 30800183 PMCID: PMC6369989 DOI: 10.3762/bjoc.15.30] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/22/2019] [Indexed: 11/23/2022] Open
Abstract
Oxidative alkene difunctionalization reactions are important in synthetic organic chemistry because they can install polar functional groups onto simple non-polar alkene moieties. Many of the most common methods for these reactions rely upon the reactivity of pre-oxidized electrophilic heteroatom donors that can often be unstable, explosive, or difficult to handle. Herein, we describe a method for alkene oxyamination and diamination that utilizes simple carbamate and urea groups as nucleophilic heteroatom donors. This method uses a tandem copper-photoredox catalyst system that is operationally convenient. The identity of the terminal oxidant is critical in these studies. Ag(I) salts proved to be unique in their ability to turn over the copper cocatalyst without deleteriously impacting the reactivity of the organoradical intermediates.
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Affiliation(s)
- Nicholas L Reed
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Madeline I Herman
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Vladimir P Miltchev
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Tehshik P Yoon
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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211
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Tian MQ, Wang C, Hu XH, Loh TP. Divergent C–H Oxidative Radical Functionalization of Olefins to Install Tertiary Alkyl Motifs Enabled by Copper Catalysis. Org Lett 2019; 21:1607-1611. [DOI: 10.1021/acs.orglett.9b00142] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming-Qing Tian
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Cong Wang
- 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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212
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Wu SL, Li ZJ, Gao X. Dithiolation of [70]Fullerene with Aliphatic Primary Thiols in the Presence of n-Butylamine via Aerobic Oxidation Reaction. J Org Chem 2019; 84:3045-3054. [DOI: 10.1021/acs.joc.8b02462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sheng-Li Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
| | - Zong-Jun Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
| | - Xiang Gao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
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213
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Cheng L, Sun Y, Wang W, Yao C, Li TJ. Ligand-Free Copper(I)-Catalyzed Benzylic Acyloxylation of 2-Alkylpyridines under Aerobic Conditions. J Org Chem 2019; 84:3074-3082. [DOI: 10.1021/acs.joc.8b02794] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Li Cheng
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Yuqian Sun
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Wenrong Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Changsheng Yao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Tuan-Jie Li
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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214
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Moglie Y, Buxaderas E, Mancini A, Alonso F, Radivoy G. Amide Bond Formation Catalyzed by Recyclable Copper Nanoparticles Supported on Zeolite Y under Mild Conditions. ChemCatChem 2019. [DOI: 10.1002/cctc.201801858] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yanina Moglie
- Departmento de QuímicaINQUISUR, Universidad Nacional del Sur (UNS)-CONICET Avenida Alem 1253 Bahía Blanca 8000 Argentina
| | - Eduardo Buxaderas
- Departmento de QuímicaINQUISUR, Universidad Nacional del Sur (UNS)-CONICET Avenida Alem 1253 Bahía Blanca 8000 Argentina
| | - Agustina Mancini
- Departmento de QuímicaINQUISUR, Universidad Nacional del Sur (UNS)-CONICET Avenida Alem 1253 Bahía Blanca 8000 Argentina
| | - Francisco Alonso
- Instituto de Síntesis Orgánica (ISO) and Departamento de Química OrgánicaFacultad de CienciasUniversidad de Alicante Apdo. 99 03080 Alicante Spain
| | - Gabriel Radivoy
- Departmento de QuímicaINQUISUR, Universidad Nacional del Sur (UNS)-CONICET Avenida Alem 1253 Bahía Blanca 8000 Argentina
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215
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Building molecular complexity through transition-metal-catalyzed oxidative annulations/cyclizations: Harnessing the utility of phenols, naphthols and 1,3-dicarbonyl compounds. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.11.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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216
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Yu Y, Li M, Zhang Y, Liu Y, Shi L, Wang W, Li H. Construction of N-Alkyl- and N-Arylaziridines from Unprotected Amines via C-H Oxidative Amination Strategy. Org Lett 2019; 21:904-907. [PMID: 30698446 DOI: 10.1021/acs.orglett.8b03799] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper-promoted intramolecular C-H oxidative amination reaction between secondary amine (N-H) and C(sp3)-H at the benzylic position of azaarenes or α-position of ketones for the synthesis of aziridine derivatives has been developed. Moreover, a practical annulation of electron-deficient vinylarenes with an unprotected primary alkyl amine by a Yb(OTf)3-CuI relay system has also been reported. The reactions were carried out with oxygen as the sole oxidant to give the N-alkyl- and N-arylaziridines in good yields.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Meijuan Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Yong Zhang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Yonghai Liu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Lei Shi
- Corporate R&D Division , Firmenich Aromatics (China) Co., Ltd. , Shanghai 201108 , China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China.,Department of Pharmacology and Toxicology and BIO5 Institute , University of Arizona , 1703 East Mabel Street , P.O. Box 210207, Tucson , Arizona 85721-0207 , United States
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
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217
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Sharma R, Kumar R, Sharma U. Rh/O2-Catalyzed C8 Olefination of Quinoline N-Oxides with Activated and Unactivated Olefins. J Org Chem 2019; 84:2786-2797. [DOI: 10.1021/acs.joc.8b03176] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ritika Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR- IHBT, Palampur 176061, India
| | - Rakesh Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR- IHBT, Palampur 176061, India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR- IHBT, Palampur 176061, India
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218
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Wang H, Li Y, Lu Q, Yu M, Bai X, Wang S, Cong H, Zhang H, Lei A. Oxidation-Induced β-Selective C–H Bond Functionalization: Thiolation and Selenation of N-Heterocycles. ACS Catal 2019. [DOI: 10.1021/acscatal.8b05054] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Huamin Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Yongli Li
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Qingquan Lu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Mingming Yu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Xudong Bai
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Shengchun Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Hengjiang Cong
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Heng Zhang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, PR China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
- National Research Center for Carbohydrate Synthesis Jiangxi Normal University, Nanchang, Jiangxi 330022, PR China
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219
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Boobalan R, Santhoshkumar R, Cheng CH. Co(III)-Catalyzed [4+1] Annulation of Amides with Allenes via C−H Activation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801335] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ramadoss Boobalan
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
| | | | - Chien-Hong Cheng
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
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220
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Liu J, Zheng L. Recent Advances in Transition‐Metal‐Mediated Chelation‐ Assisted Sulfonylation of Unactivated C−H Bonds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801307] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jidan Liu
- School of Chemistry and Chemical EngineeringGuangzhou University Guangzhou 510006 People's Republic of China
| | - Liyao Zheng
- School of Chemistry and Chemical EngineeringGuangzhou University Guangzhou 510006 People's Republic of China
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221
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Goncharova IK, Silaeva KP, Arzumanyan AV, Anisimov AA, Milenin SA, Novikov RA, Solyev PN, Tkachev YV, Volodin AD, Korlyukov AA, Muzafarov AM. Aerobic Co-/N-Hydroxysuccinimide-Catalyzed Oxidation of p-Tolylsiloxanes to p-Carboxyphenylsiloxanes: Synthesis of Functionalized Siloxanes as Promising Building Blocks for Siloxane-Based Materials. J Am Chem Soc 2019; 141:2143-2151. [DOI: 10.1021/jacs.8b12600] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Irina K. Goncharova
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
| | - Kseniia P. Silaeva
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
- Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Sq., Moscow 125047, Russian Federation
| | - Ashot V. Arzumanyan
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
| | - Anton A. Anisimov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
| | - Sergey A. Milenin
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya Street, Moscow 117393, Russian Federation
| | - Roman A. Novikov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova Street, Moscow 119991, Russian Federation
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Pr., Moscow 119991, Russian Federation
| | - Pavel N. Solyev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova Street, Moscow 119991, Russian Federation
| | - Yaroslav V. Tkachev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova Street, Moscow 119991, Russian Federation
| | - Alexander D. Volodin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
| | - Alexander A. Korlyukov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
- Pirogov Russian National Research Medical University, 1 Ostrovityanov Street, Moscow 117997, Russian Federation
| | - Aziz M. Muzafarov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, Moscow 119991, Russian Federation
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya Street, Moscow 117393, Russian Federation
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222
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Li ZL, Sun KK, Cai C. Nickel-catalyzed regioselective C–H oxygenation: new routes for versatile C–O bond formation. Org Chem Front 2019. [DOI: 10.1039/c8qo01274a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Nickel-catalyzed regioselective C–H oxygenation reactions of chelating arenes using iodobenzene diacetate, alcohols, and benzoic acids respectively as attacking reagents have been developed for the first time.
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Affiliation(s)
- Ze-lin Li
- College of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Kang-kang Sun
- College of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Chun Cai
- College of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing
- China
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223
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Wang C, Yang J, Meng X, Sun Y, Man X, Li J, Sun F. Manganese(ii)-catalysed dehydrogenative annulation involving C–C bond formation: highly regioselective synthesis of quinolines. Dalton Trans 2019; 48:4474-4478. [PMID: 30860245 DOI: 10.1039/c9dt00647h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An inexpensive nontoxic manganese(ii)-catalysed dehydrogenative annulation was developed for C–C bond formation.
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Affiliation(s)
- Chengniu Wang
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Jinfei Yang
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Xiao Meng
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Yufeng Sun
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Xuyan Man
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Jinxia Li
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Fei Sun
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
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224
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Singh A, Vanaparthi S, Choudhary S, Krishnan R, Kumar I. Synthesis of C2-tetrasubstituted indolin-3-ones via Cu-catalyzed oxidative dimerization of 2-aryl indoles and cross-addition with indoles. RSC Adv 2019; 9:24050-24056. [PMID: 35527913 PMCID: PMC9069668 DOI: 10.1039/c9ra04741g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 07/23/2019] [Indexed: 01/01/2023] Open
Abstract
An efficient protocol for the synthesis of 2,2-disubstituted indolin-3-ones under mild conditions has been developed. This reaction involves the copper-catalyzed in situ oxidative de-aromatization of 2-arylindoles to indol-3-one, followed by self-dimerization as well as cross-addition with indoles under mild conditions. The result generates a wide variety of C2-tetrasubstituted indolin-3-ones with good to high yields (62–82%). A general protocol for the synthesis of 2,2-disubstituted indolin-3-ones has been developed through self-dimerization of 2-aryl indoles and cross-addition with indoles under mild Cu-catalyzed oxidative conditions with good to high yields.![]()
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Affiliation(s)
- Anoop Singh
- Department of Chemistry
- Birla Institute of Technology and Science
- India
| | | | - Sachin Choudhary
- Department of Chemistry
- Birla Institute of Technology and Science
- India
| | | | - Indresh Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- India
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225
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Li T, Li J, Zhu Z, Pan W, Wu S. Cobalt( ii)-catalyzed benzylic oxidations with potassium persulfate in TFA/TFAA. RSC Adv 2019; 9:20879-20883. [PMID: 35515535 PMCID: PMC9065695 DOI: 10.1039/c9ra03346g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 06/27/2019] [Indexed: 11/21/2022] Open
Abstract
A cobalt-catalyzed C(sp3)–H oxygenation reaction to furnish aldehyde was herein reported. This transformation demonstrated high chemo-selectivity, and tolerated various methylarenes bearing electron-withdrawing substituents. This reaction provided rapid access to diverse aldehydes form methylarenes. Notably, TFA/TFAA was used for the first time as a mixed solvent in cobalt-catalyzed oxygenation of benzylic methylenes. A Co-catalyzed C(sp3)–H oxygenation reaction to furnish diverse aldehydes from methylarenes in TFA/TFAA is reported. This transformation demonstrated high chemo-selectivity, and tolerated with various methylarenes bearing electron-withdrawing substituents.![]()
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Affiliation(s)
- Tianlei Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing
| | - Jishun Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing
| | - Zihao Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing
| | - Weidong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants
- Guizhou Medcial University
- Guiyang 550014
- China
| | - Song Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing
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226
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Cu-catalyzed direct ortho-chlorination/-oxygenation of aryls: Switching of oxidant, control the diversity of products. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.11.071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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227
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Copper catalysed cross-dehydrogenative coupling (CDC) reaction of 4-thiazolidinone with terminal alkyne. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.10.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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228
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Isaac JA, Thibon-Pourret A, Durand A, Philouze C, Le Poul N, Belle C. High-valence CuIICuIII species in action: demonstration of aliphatic C–H bond activation at room temperature. Chem Commun (Camb) 2019; 55:12711-12714. [DOI: 10.1039/c9cc04422a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electrochemically generated CuIICuIII mixed-valence species promotes activation of strong aliphatic C–H bonds (i.e. toluene), turning from stoichiometric to catalytic upon addition of a base.
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Affiliation(s)
| | | | - Amélie Durand
- Université Grenoble Alpes
- CNRS
- ICMG
- 38000 Grenoble
- France
| | | | - Nicolas Le Poul
- Université de Bretagne Occidentale
- CNRS UMR 6521
- 29238 Brest
- France
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229
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Qiu X, Yang X, Zhang Y, Song S, Jiao N. Efficient and practical synthesis of unsymmetrical disulfides via base-catalyzed aerobic oxidative dehydrogenative coupling of thiols. Org Chem Front 2019. [DOI: 10.1039/c9qo00239a] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel M2CO3-catalyzed aerobic oxidative heterocoupling of thiols with air as the oxidant was described for the synthesis of unsymmetrical disulfides. High atom economy, green catalyst and oxidant, mild reaction conditions, and broad substrate scope make this strategy extremely attractive.
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Affiliation(s)
- Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Xiaoxue Yang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yiqun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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230
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Džambaski Z, Bondžić BP. Dehydrogenative C(sp3)–H bond functionalization of tetrahydroisoquinolines mediated by organic oxidants under mild conditions. Org Biomol Chem 2019; 17:6420-6425. [DOI: 10.1039/c9ob01090d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
DDQ and IBX are effective SET oxidants of N-aryl-protected and unprotected THIQs. Mannich and Strecker type functionalizations ensued in an overall CDC reaction.
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Affiliation(s)
- Zdravko Džambaski
- Center for Chemistry
- ICTM institute
- University of Belgrade
- 11 000 Belgrade
- Serbia
| | - Bojan P. Bondžić
- Center for Chemistry
- ICTM institute
- University of Belgrade
- 11 000 Belgrade
- Serbia
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231
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Kramer S. Synthesis of α-Substituted Primary Benzylamines through Copper-Catalyzed Cross-Dehydrogenative Coupling. Org Lett 2018; 21:65-69. [PMID: 30557025 DOI: 10.1021/acs.orglett.8b03505] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper-catalyzed route to α-substituted, primary benzylamines by C-H functionalization of alkylarenes is described. The method directly affords the amine hydrochloride salt. Catalyst loadings down to 0.1 mol % in combination with scalability, insensitivity to air and moisture, and no need for column chromatography makes the procedure highly practical. The facile synthesis of the racemate of a blockbuster drug highlights the relevance for the development of pharmaceuticals. Preliminary mechanistic data are also included.
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Affiliation(s)
- Søren Kramer
- Department of Chemistry , Technical University of Denmark , 2800 Kgs. Lyngby , Denmark
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232
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Shome S, Singh SP. Reactions in Water - A Greener Approach Using Ruthenium Catalysts. CHEM REC 2018; 19:1935-1951. [PMID: 30537344 DOI: 10.1002/tcr.201800142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Indexed: 12/18/2022]
Abstract
Reactions using transition metals as catalysts have emerged as an efficient method in the recent times. However, the selection of solvent plays a crucial role in this regard. Several solvents used traditionally suffer majorly with problems of toxicity; high boiling point etc. leading to drastic reaction conditions. Water being a non-toxic, non-inflammable and environmentally benign can replace the hazardous organic solvents in laboratory as well as industry. Maintaining a minimum catalyst loading percentage we can advantageously avail high levels of selectivity. Water was found to be a good solvent medium for several metal catalysed reactions. An intramolecular deprotonation mechanism is followed by the ruthenium (II) catalysts in water; thereby, facilitating the catalytic action of the metal. These studies can help the industrial chemists to utilize water as a solvent for their reactions towards improvement of their waste management procedure. This review mainly focuses on the several recent developments in the above direction.
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Affiliation(s)
- Sanchari Shome
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, 500007
- Academy of Scientific and Innovative Research (AcSIR, New Delhi
| | - Surya Prakash Singh
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, 500007
- Academy of Scientific and Innovative Research (AcSIR, New Delhi
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233
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Hone CA, Kappe CO. The Use of Molecular Oxygen for Liquid Phase Aerobic Oxidations in Continuous Flow. Top Curr Chem (Cham) 2018; 377:2. [PMID: 30536152 PMCID: PMC6290733 DOI: 10.1007/s41061-018-0226-z] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/03/2018] [Indexed: 11/26/2022]
Abstract
Molecular oxygen (O2) is the ultimate “green” oxidant for organic synthesis. There has been recent intensive research within the synthetic community to develop new selective liquid phase aerobic oxidation methodologies as a response to the necessity to reduce the environmental impact of chemical synthesis and manufacture. Green and sustainable chemical processes rely not only on effective chemistry but also on the implementation of reactor technologies that enhance reaction performance and overall safety. Continuous flow reactors have facilitated safer and more efficient utilization of O2, whilst enabling protocols to be scalable. In this article, we discuss recent advancements in the utilization of continuous processing for aerobic oxidations. The translation of aerobic oxidation from batch protocols to continuous flow processes, including process intensification (high T/p), is examined. The use of “synthetic air”, typically consisting of less than 10% O2 in N2, is compared to pure O2 (100% O2) as an oxidant source in terms of process efficiency and safety. Examples of homogeneous catalysis and heterogeneous (packed bed) catalysis are provided. The application of flow photoreactors for the in situ formation of singlet oxygen (1O2) for use in organic reactions, as well as the implementation of membrane technologies, green solvents and recent reactor solutions for handling O2 are covered.
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Affiliation(s)
- Christopher A Hone
- Center for Continuous Synthesis and Processing (CCFLOW), Research Center Pharmaceutical Engineering (RCPE), Inffeldgasse 13, 8010, Graz, Austria.,Institute of Chemistry, NAWI Graz, University of Graz, Heinrichstrasse 28, 8010, Graz, Austria
| | - C Oliver Kappe
- Center for Continuous Synthesis and Processing (CCFLOW), Research Center Pharmaceutical Engineering (RCPE), Inffeldgasse 13, 8010, Graz, Austria. .,Institute of Chemistry, NAWI Graz, University of Graz, Heinrichstrasse 28, 8010, Graz, Austria.
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234
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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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235
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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: 1425] [Impact Index Per Article: 237.5] [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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236
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Cui Y, Lin W, Ma S. A metal-catalyzed new approach for α-alkynylation of cyclic amines. Chem Sci 2018; 10:1796-1801. [PMID: 30842847 PMCID: PMC6369436 DOI: 10.1039/c8sc04115f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 11/24/2018] [Indexed: 01/05/2023] Open
Abstract
The first catalytic α-alkynylation of cyclic amines with the help of the N-propargylic group with an exclusive high E-stereoselectivity has been realized.
The first catalytic α-alkynylation of cyclic amines with the help of the N-propargylic group to afford 2-(1-alkynyl) N-allylic cyclic amines with an exclusive E-stereoselectivity for the in situ formed C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C bond has been realized. Based on mechanistic studies, it is proven that the reaction proceeds through metal-mediated anti-1,5-hydride transfer forming an iminonium intermediate, which accepts the addition of the in situ generated 1-alkynyl metal species. The synthetic application has also been demonstrated.
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Affiliation(s)
- Yifan Cui
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , P. R. China . .,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Weilong Lin
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , P. R. China . .,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , P. R. China . .,Department of Chemistry , Fudan University , 220 Handan Lu , Shanghai 200433 , P. R. China
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237
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Xiao P, Li CX, Fang WH, Cui G, Thiel W. Mechanism of the Visible-Light-Mediated Copper-Catalyzed Coupling Reaction of Phenols and Alkynes. J Am Chem Soc 2018; 140:15099-15113. [PMID: 30362731 DOI: 10.1021/jacs.8b10387] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A recent experimental study reported a visible-light-mediated aerobic oxidative coupling reaction of phenol with alkynes that produces hydroxyl-functionalized aryl ketones using inexpensive CuCl as catalyst under mild conditions. Here we apply the complete active space self-consistent field (CASSCF) method and multistate second-order perturbation (MS-CASPT2) theory in combination with density functional theory (DFT) to systematically explore the entire photocatalytic reaction between phenol and phenylacetylene in acetonitrile solution in the presence of molecular oxygen and CuCl. Our main findings are as follows: (1) The visible-light-driven conversion of phenylacetylene to PhCCCu(I) occurs thermally because of efficient excited-state deactivation to the S0 state. (2) The single electron transfer from PhCCCu(I) to molecular oxygen that leads to the PhCCCu(II) cation takes place in the T1 state after an efficient S1 → T1 intersystem crossing. (3) During the initial oxidation of phenol, molecular oxygen prefers to attack the para position of the phenol radical intermediate to produce 1,4-benzoquinone, which further reacts with PhCCCu(II) to generate para-hydroxyl-substituted aryl ketones; this is the origin of the experimentally observed regioselectivity. (4) The C≡C bond of the phenylacetylene moiety is not activated by the triplet-state single electron transfer from PhCCCu(I) to molecular oxygen but is cleaved at a later stage, in the [2+2] cycloaddition between PhCCCu(II) and 1,4-benzoquinone. (5) The substrate phenol plays an active role in several hydrogen transfer and decarboxylation reactions; the barriers to these phenol-assisted reactions are lower than those for the corresponding direct or water-assisted reactions, which explains the experimental finding that adding water does not enhance the photocatalytic reaction yield. In summary, while supporting the general features of the experimentally proposed mechanism, our computational study provides detailed mechanistic insights that should be useful for understanding and further improving visible-light-induced copper-catalyzed coupling reactions.
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Affiliation(s)
- Pin Xiao
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Chun-Xiang Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Wei-Hai Fang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
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238
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Jayram J, Jeena V. An iodine/DMSO-catalyzed sequential one-pot approach to 2,4,5-trisubstituted-1 H-imidazoles from α-methylene ketones. RSC Adv 2018; 8:37557-37563. [PMID: 35558600 PMCID: PMC9089320 DOI: 10.1039/c8ra07238h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/01/2018] [Indexed: 01/08/2023] Open
Abstract
A sequential one-pot approach to 2,4,5-trisubstituted imidazoles has been developed from α-methylene ketones and aldehydes. This methodology employs air-moisture stable reaction conditions and an inexpensive iodine/DMSO system affording a diverse range of known and novel (substrate scope) 2,4,5-trisubstituted imidazoles in moderate to excellent yields. The iodine/DMSO system was extended to the domino convergent synthesis of two functionalized intermediates, benzil and benzaldehyde, to produce the final product.
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Affiliation(s)
- Janeeka Jayram
- School of Chemistry and Physics, University of KwaZulu-Natal Scottsville Pietermaritzburg 3209 South Africa
| | - Vineet Jeena
- School of Chemistry and Physics, University of KwaZulu-Natal Scottsville Pietermaritzburg 3209 South Africa
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239
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Kantam ML, Gadipelly C, Deshmukh G, Reddy KR, Bhargava S. Copper Catalyzed C−H Activation. CHEM REC 2018; 19:1302-1318. [DOI: 10.1002/tcr.201800107] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 10/07/2018] [Indexed: 01/24/2023]
Affiliation(s)
- M. Lakshmi Kantam
- Department of Chemical EngineeringInstitute of Chemical Technology Mumbai – 400019 India
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)School of Applied SciencesRMIT University GPO BOX 2476 Melbourne 3001 Australia
| | - Chandrakanth Gadipelly
- Department of Chemical EngineeringInstitute of Chemical Technology Mumbai – 400019 India
| | - Gunjan Deshmukh
- Department of Chemical EngineeringInstitute of Chemical Technology Mumbai – 400019 India
| | - K. Rajender Reddy
- Catalysis and Fine Chemicals DivisionCSIR-Indian Institute of Chemical Technology Uppal Road, Tarnaka Hyderabad – 500 007, Telangana India
| | - Suresh Bhargava
- Centre for Advanced Materials & Industrial Chemistry (CAMIC)School of Applied SciencesRMIT University GPO BOX 2476 Melbourne 3001 Australia
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240
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Zhou W, Nakahashi J, Miura T, Murakami M. Light/Copper Relay for Aerobic Fragmentation of Lignin Model Compounds. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Wang Zhou
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
| | - Junki Nakahashi
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University, Katsura Kyoto 615-8510 Japan
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241
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Kim H, Heo J, Kim J, Baik MH, Chang S. Copper-Mediated Amination of Aryl C-H Bonds with the Direct Use of Aqueous Ammonia via a Disproportionation Pathway. J Am Chem Soc 2018; 140:14350-14356. [PMID: 30346156 DOI: 10.1021/jacs.8b08826] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The direct amination of C-H bonds with ammonia is a challenge in synthetic chemistry. Herein, we present a copper-mediated approach that enables a chelation-assisted aromatic C-H bond amination using aqueous ammonia. A key strategy was to use soft low-valent Cu(I) species to avoid the strong coordination of ammonia. Mechanistic investigations suggest that the catalysis is initiated by a facile deprotonation of bound ammonia, and the C-N coupling is achieved by subsequent reductive elimination of the resultant copper-amido intermediate from a Cu(III) intermediate that is readily generated by disproportionation of low-valent copper analogues. This mechanistic postulate was supported by a preliminary kinetic isotope effect study and computations. This new chelation-assisted, copper-mediated C-H bond amination with aqueous ammonia was successfully applied to a broad range of substrates to deliver primary anilines. Moreover, the mild conditions required for this transformation allowed the reaction to operate even under substoichiometric conditions to enable a late-stage application for the preparation of pharmaceutical agents.
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Affiliation(s)
- Hyunwoo Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea.,Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon 34141 , South Korea
| | - Joon Heo
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea.,Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon 34141 , South Korea
| | - Junho Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea
| | - Mu-Hyun Baik
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea.,Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon 34141 , South Korea
| | - Sukbok Chang
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , South Korea.,Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon 34141 , South Korea
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242
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Ariyarathna JP, Wu F, Colombo SK, Hillary CM, Li W. Aerobic Catalytic Features in Photoredox- and Copper-Catalyzed Iodolactonization Reactions. Org Lett 2018; 20:6462-6466. [PMID: 30277403 DOI: 10.1021/acs.orglett.8b02771] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mechanistic evaluations and comparison of two important aerobic catalytic oxidation processes, aerobic copper catalysis and photoredox catalysis, are performed. Interesting and distinct catalytic behaviors were observed for a common reaction of iodolactonization of alkenoic acids. Namely, the aerobic copper catalysis requires the formation of a copper carboxylate, whereas the aerobic photoredox catalysis requires the addition of proton sources to proceed to completion. Furthermore, the iodolactone products obtained from these catalytic processes are extensively derivatized to a number of functionalized lactones, including aryl lactones generated from the nickel-catalyzed reductive coupling with aryl halides.
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Affiliation(s)
- Jeewani Poornima Ariyarathna
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering , The University of Toledo , 2801 West Bancroft Street , Toledo , Ohio 43606 , United States
| | - Fan Wu
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering , The University of Toledo , 2801 West Bancroft Street , Toledo , Ohio 43606 , United States
| | - Sara Katelyn Colombo
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering , The University of Toledo , 2801 West Bancroft Street , Toledo , Ohio 43606 , United States
| | - Charleese Marisa Hillary
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering , The University of Toledo , 2801 West Bancroft Street , Toledo , Ohio 43606 , United States
| | - Wei Li
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering , The University of Toledo , 2801 West Bancroft Street , Toledo , Ohio 43606 , United States
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243
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Ribelli TG, Matyjaszewski K, Poli R. The interaction of carbon-centered radicals with copper(I) and copper(II) complexes*. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1490416] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Thomas G. Ribelli
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | | | - Rinaldo Poli
- LCC-CNRS, Université de Toulouse, CNRS, INPT, Toulouse, France
- Institut Universitaire de France, Paris, France
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244
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Water dispersed gold nanoparticles catalyzed aerobic oxidative cross-dehydrogenative coupling: An efficient synthesis of α-ketoamides in water. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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245
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Yadav D, Shukla G, Ansari MA, Srivastava A, Singh MS. Chemoselective one-pot access to benzo[e]indole-4,5-diones and naphtho[2,1-b]thiophene-4,5-diones via copper-catalyzed oxidative [3 + 2] annulation of α-oxoketene N,S-acetals/β-ketothioamides with α-/β-naphthols. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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246
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Chen J, Guo J, Lu Z. Recent Advances in Hydrometallation of Alkenes and Alkynes via the First Row Transition Metal Catalysis. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800314] [Citation(s) in RCA: 227] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jianhui Chen
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou, Zhejiang 325035 China
- Department of chemistry; Zhejiang University; Hangzhou Zhejiang 310027 China
| | - Jun Guo
- Department of chemistry; Zhejiang University; Hangzhou Zhejiang 310027 China
| | - Zhan Lu
- Department of chemistry; Zhejiang University; Hangzhou Zhejiang 310027 China
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247
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Xu WL, Zhang H, Hu YL, Yang H, Chen J, Zhou L. Metal-Free Dehydrogenative Diels-Alder Reactions of Prenyl Derivatives with Dienophiles via a Thermal Reversible Process. Org Lett 2018; 20:5774-5778. [PMID: 30182721 DOI: 10.1021/acs.orglett.8b02469] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient dehydrogenative Diels-Alder reaction of prenyl derivatives with dienophiles has been developed. The reaction exhibits broad substrate scope and provides efficient access to cyclohexene derivatives with good to excellent yields. A reasonable mechanism involving a metal-free thermal reversible process is proposed.
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Affiliation(s)
- Wen-Lei Xu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Heng Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Yu-Long Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
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248
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Zhao B, Tan H, Chen C, Jiao N, Shi Z. Photoinduced C-C Bond Cleavage and Oxidation of Cycloketoxime Esters. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800206] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing Jiangsu 210093 China
| | - Hui Tan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Phar-maceutical Sciences; Peking University; Xue Yuan Road 38, Beijing 100191 China
| | - Cheng Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing Jiangsu 210093 China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Phar-maceutical Sciences; Peking University; Xue Yuan Road 38, Beijing 100191 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing Jiangsu 210093 China
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249
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Mita T, Uchiyama M, Michigami K, Sato Y. Cobalt-catalyzed nucleophilic addition of the allylic C(sp 3)-H bond of simple alkenes to ketones. Beilstein J Org Chem 2018; 14:2012-2017. [PMID: 30202455 PMCID: PMC6122116 DOI: 10.3762/bjoc.14.176] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/18/2018] [Indexed: 01/13/2023] Open
Abstract
We herein describe a cobalt/Xantphos-catalyzed regioselective addition of simple alkenes to acetophenone derivatives, affording branched homoallylic alcohols in high yields with perfect branch selectivities. The intermediate of the reaction would be a nucleophilic allylcobalt(I) species generated via cleavage of the low reactive allylic C(sp3)–H bond of simple terminal alkenes.
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Affiliation(s)
- Tsuyoshi Mita
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Masashi Uchiyama
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kenichi Michigami
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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250
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Liang X, Wu C, Zheng Z, Walsh PJ. Nickel-Catalyzed Oxidative Coupling Reaction of Phenyl Benzyl Sulfoxides. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiaoxia Liang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Chen Wu
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Zhipeng Zheng
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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