1
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Sinnema EG, Ramspoth TF, Bouma RH, Ge L, Harutyunyan SR. Enantioselective Hydrophosphination of Terminal Alkenyl Aza-Heteroarenes. Angew Chem Int Ed Engl 2024; 63:e202316785. [PMID: 38133954 DOI: 10.1002/anie.202316785] [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: 11/06/2023] [Revised: 12/15/2023] [Accepted: 12/20/2023] [Indexed: 12/24/2023]
Abstract
This paper presents a Mn(I)-catalysed methodology for the enantioselective hydrophosphination of terminal alkenyl aza-heteroarenes. The catalyst operates through H-P bond activation, enabling successful hydrophosphination of a diverse range of alkenyl-heteroarenes with high enantioselectivity. The presented protocol addresses the inherently low reactivity and the commonly encountered suboptimal enantioselectivities of these challenging substrates. As an important application we show that this method facilitates the synthesis of a non-symmetric tridentate P,N,P-containing ligand like structure in just two synthetic steps using a single catalytic system.
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Affiliation(s)
- Esther G Sinnema
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Tizian-Frank Ramspoth
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Reinder H Bouma
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Luo Ge
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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2
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Guo T, Hu P, Liu Y, Zhang P, Zhao Y, Zhu C. Ketosulfonylmethylenation and sulfonylethyleneation of imidazoheterocycles with dimethylformamide as a methylene source. Chem Commun (Camb) 2023; 59:12455-12458. [PMID: 37781868 DOI: 10.1039/d3cc03850e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
A hitherto unreported ketosulfonylmethylenation occurring at the C-3 position of imidazoheterocycles, with dimethylformamide as the methylene source was described. Using CoCl2·6H2O or Fe(acac)3 as efficient and inexpensive catalysts, some important biologically active methylenated compounds were prepared, with high efficacy, favorable functional group compatibilities, and a broad substrate scope.
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Affiliation(s)
- Tao Guo
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Penghua Hu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Yu Liu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
| | - Panke Zhang
- Green Catalysis Center, College of Chemistry, Henan Advanced Institute of Technology, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yunhui Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Congjun Zhu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. China
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3
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Miao B, Xue M, Ji S, Wang Z, Zhang Y. Cu-Catalyzed Methylenation of Alcohols with N-Methyl Amide as a Sustainable Methylene Reagent. J Org Chem 2023; 88:1128-1134. [PMID: 36583715 DOI: 10.1021/acs.joc.2c02637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Herein, we report a new approach to methylenation of alcohols using N-methyl amide as a sustainable methylene reagent; the N-methyl delivers the methylene group. This new reagent is easily prepared and stable to both air and moisture. Furthermore, the final byproduct of this methylene reagent can be recycled in excellent yields and then reused in methylenation reactions upon treating with CH3I.
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Affiliation(s)
- Bingyang Miao
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Meng Xue
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Shuaiyu Ji
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Yuexia Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
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4
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Xiao F, Yang G, Yao L, Mao G, Deng G. Fe‐Catalyzed Three‐Component Reaction for the Synthesis of 2,3'‐Biquinolines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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5
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Zeng M, Yuan ZX, Wen LF, Jiang D, Lu H, Liu W, Dai J, Zeng SX. The copper-catalyzed oxidation of arylmethyl triazines with H 2O toward the oxidant-free synthesis of aroyl triazines. Org Biomol Chem 2022; 20:5406-5411. [PMID: 35521790 DOI: 10.1039/d2ob00582d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report an efficient copper-catalyzed dehydrogenation method for the synthesis of aroyl triazines from arylmethyl triazines with water in the absence of additional oxidants or hydrogen acceptors. The use of substrates with both electron-donating and electron-withdrawing groups resulted in moderate to good yields. Using liquid chromatography-mass spectrometry, 18O-labeled-water reactions and hydrogen capture experiments confirmed that water was the only oxygen donor and hydrogen was the by-product. This oxidation strategy provides a new approach for the synthesis of aroyl triazines with a broad substrate scope.
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Affiliation(s)
- Ming Zeng
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China.
| | - Zi-Xin Yuan
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China.
| | - Lin-Fei Wen
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China.
| | - Dengzhao Jiang
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China.
| | - Hui Lu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wenbo Liu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China.
| | - Jun Dai
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China.
| | - Shen-Xin Zeng
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 311399, China.
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6
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Kudale VS, Zheng S, Huang SH, Chang YL, Wang JJ. A metal-free strategy for the cross-dehydrogenative coupling of 1,3-dicarbonyl compounds with 2-methoxyethanol. Org Biomol Chem 2022; 20:1226-1230. [PMID: 35040852 DOI: 10.1039/d1ob02290c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Here, we report a metal-free approach for the construction of methylene-bridged bis-1,3-dicarbonyl compounds via cross-dehydrogenative coupling of 1,3-dicarbonyl compounds with 2-methoxyethanol. In addition, we have extended this methodology to synthesize tetra-substituted pyridine derivatives using 1,3-dicarbonyl, 2-methoxyethanol and NH4OAc in one step. The key advantages include accepting a wide range of substrates, utilizing O2 as the sole oxidant, and synthesizing biologically active compounds such as 1,4-dihydropyridine and pyrazole.
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Affiliation(s)
- Vishal Suresh Kudale
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Sheng Zheng
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Sheng-Hua Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Yu-Lun Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan. .,Department of Medicinal Research, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan
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7
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Kalari S, Karale UB, Rode HB. Selectfluor-Mediated Synthesis of β-Acyl Allyl Sulfones/β-Acyl Allyl Benzotriazoles from Ketones/Acetylenes, Aryl Sulfinates/Benzotriazole, and DMSO as a Dual-Carbon Synthon. J Org Chem 2022; 87:2435-2445. [PMID: 35025500 DOI: 10.1021/acs.joc.1c02348] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A Selectfluor-mediated approach for the synthesis of β-acyl allyl sulfones/β-acyl allyl benzotriazoles with excellent atom economy from readily available acetophenones/aryl acetylenes, aryl sulfinates/benzotriazoles, and dimethyl sulfoxide (DMSO) is described. In this protocol, DMSO acts as a dual-carbon synthon, resulting in a transition-metal-free construction of two C-C and one C-S or two C-C and one C-N bonds in one pot. This approach is extended to generate chemically diverse compounds. Additionally, β-acyl allyl sulfones/β-acyl allyl benzotriazoles were prepared from acetylenes instead of acetophenones.
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Affiliation(s)
- Saradhi Kalari
- Department of Organic Synthesis and Process Chemistry, CSIR─Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Uttam B Karale
- Department of Organic Synthesis and Process Chemistry, CSIR─Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Haridas B Rode
- Department of Organic Synthesis and Process Chemistry, CSIR─Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
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8
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Zeng M, Liu YX, Zheng JH, Zhao L, Zhu QH, Jiang D, Ling Y, Liu W, Zeng SX. Direct α-methylenation of triazines to terminal olefins with DMA. NEW J CHEM 2022. [DOI: 10.1039/d2nj04417j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We report an efficient metal (Cu or Ni)-catalysed α-methylenation of triazines to terminal olefins using DMA as a one-carbon source. Various substituted triazine derivatives are suitable for this reaction.
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Affiliation(s)
- Ming Zeng
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Yi-xuan Liu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Jian-hui Zheng
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Lan Zhao
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Qi-han Zhu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Dengzhao Jiang
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Yun Ling
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Wenbo Liu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332005, China
| | - Shen-xin Zeng
- School of Pharmacy, Hangzhou Medical College, Hangzhou, 311399, China
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9
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DMF as CO Surrogate in Carbonylation Reactions: Principles and Application to the Synthesis of Heterocycles. Catalysts 2021. [DOI: 10.3390/catal11121531] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Transition metal-catalyzed carbonylation reactions have emerged as one of the most relevant synthetic approaches for the preparation of carbonyl-containing molecules. The most commonly used protocol for the insertion of a carbonyl moiety is the use of carbon monoxide (CO) but, due to its toxic and explosive nature, this process is not suitable at an industrial scale. More recently, the chemistry of CO surrogates has received large attention as a way to use less expensive and more environmentally friendly methods. Among the various CO surrogates, N,N-dimethylformamide (DMF) has been paid greater attention due to its low cost and easy availability. This mini-review gives appealing insights into the application of DMF as a CO surrogate in metal-catalyzed carbonylations; in particular, in the first part we will give a general state of the art of these reactions for the preparation of carbonyl-containing molecules; then, we will take into account all the various synthetic approaches for the metal-catalyzed carbonylative synthesis of heterocycles using DMF as a CO surrogate. Each protocol has been discussed critically in order to screen the best synthetic method and to offer perspective on trends and future directions in this field.
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10
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Gupta A, Kumar J, Rahaman A, Singh AK, Bhadra S. Functionalization of C(sp3)-H bonds adjacent to heterocycles catalyzed by earth abundant transition metals. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Ye Y, Yue Y, Guo X, Chao J, Yang Y, Sun C, Lv Q, Liu J. Copper‐Catalyzed Aerobic Oxidation of N‐Pyridylindole Leading to Fused Quinazolinones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100618] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaqing Ye
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Xiaohui Guo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Junli Chao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Yan Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Chunying Sun
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Qingzhang Lv
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang, Henan 453007 P. R. China
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12
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Zhou Y, Hua R. Synthesis of 1-Benzyl-, 1-Alkoxyl-, and 1-Aminoisoquinolines via Rhodium(III)-Catalyzed Aryl C-H Activation and Alkyne Annulation. J Org Chem 2021; 86:8862-8872. [PMID: 34164989 DOI: 10.1021/acs.joc.1c00786] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One-pot syntheses of 1-benzyl-, 1-alkoxyl-, and 1-alkylamino- isoquinolines through automatic directing group (DGauto)-assisted, rhodium(III)-catalyzed aryl C-H activation and annulation with internal alkynes were developed. The reactions affording 1-benzylisoquinolines involve a cascade oximation of diarylacetylenes with hydroxylamine, forming aryl benzyl ketone oxime, and oxime-assisted rhodium(III)-catalyzed aryl C-H activation and followed annulation with another molecule of diarylacetylene in a one-pot manner. The formation of 1-alkoxyl/amino isoquinolines includes the addition of nucleophilic alcohols or amines to aryl nitriles, imine-assisted rhodium-catalyzed aryl C-H activation, and subsequent alkyne annulation.
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Affiliation(s)
- Yiming Zhou
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Ruimao Hua
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
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13
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Huang L, Cao D, Pan J, Fang L, Wang Q, Chen D, Yang J. Metal‐Free Oxidative Double C(
sp
3
)−C(
sp
3
) Coupling of 1,3‐Dicarbonyl Compounds and
N,N
‐Dimethylanilines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ling Huang
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
| | - Dongdong Cao
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
| | - Jie Pan
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
| | - Lingjia Fang
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
| | - Qianqian Wang
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
| | - Dingben Chen
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Jianguo Yang
- School of Pharmaceutical and Materials Engineering Taizhou University 1139 Shifu Road Taizhou 318000 People's Republic of China
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14
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Jing HQ, Li HL, Antilla JC. Acylation of 2-benzylpyridine N-oxides and subsequent in situ [3,3]-sigamatropic rearrangement reaction. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Zhao P, Wang K, Yue Y, Chao J, Ye Y, Tang Q, Liu J. Copper‐Catalyzed Aerobic Oxidative Amination of Indole Derivatives
via
Single‐Electron Transfer. ChemCatChem 2020. [DOI: 10.1002/cctc.202000284] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Peizheng Zhao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Ke Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Junli Chao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Yaqing Ye
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Qinghu Tang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China.) and
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16
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Pandaram S, T P AK, Ilangovan A. The silver catalyzed direct C-H functionalization of quinones with dialkyl amides. Org Biomol Chem 2020; 18:3027-3031. [PMID: 32239012 DOI: 10.1039/d0ob00323a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
DMA and other dialkylamides were successfully used as synthons for the C-H functionalization of quinones. This novel amidoalkylation reaction works with a variety of substituted quinones and dialkyl/alkyl amides, such as DMF, NMP and NMA, and the corresponding products were obtained in moderate to good yields. The amidoalkylation of quinones is demonstrated for the first time. A suitable mechanism and the synthetic utility of these compounds are demonstrated. The molecular docking of compound 5 with an Alzheimer's disease (AD) associated AChE target site was studied.
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Affiliation(s)
- Sakthivel Pandaram
- Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu, India.
| | - Adarsh Krishna T P
- Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu, India.
| | - Andivelu Ilangovan
- Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu, India.
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17
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Kaur M, Van Humbeck JF. Recent trends in catalytic sp 3 C-H functionalization of heterocycles. Org Biomol Chem 2020; 18:606-617. [PMID: 31912069 DOI: 10.1039/c9ob01559k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocycles are a ubiquitous substructure in organic small molecules designed for use in materials and medicines. Recent work in catalysis has focused on enabling access to new heterocycle structures by sp3 C-H functionalization on alkyl side-chain substituents-especially at the heterobenzylic position-with more than two hundred manuscripts published just within the last ten years. Rather than describing in detail each of these reports, in this mini-review we attempt to highlight gaps in existing techniques. A semi-quantitative overview of ongoing work strongly suggests that several specific heterocycle types and bond formations outside of C-C, C-N, and C-O have been almost completely overlooked.
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Affiliation(s)
- Milanpreet Kaur
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
| | - Jeffrey F Van Humbeck
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
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18
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Wang X, Liu H, Xie C, Zhou F, Ma C. Terminal methyl as a one-carbon synthon: synthesis of quinoxaline derivatives via radical-type transformation. NEW J CHEM 2020. [DOI: 10.1039/c9nj04910j] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An iron-promoted method for the construction of pyrrolo[1,2-a]quinoxaline derivatives has been developed. Various solvents with terminal methyl group, including ethers, amines and dimethyl sulfoxide, were utilized as carbon sources for the synthesis.
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Affiliation(s)
- Xinfeng Wang
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Huanhuan Liu
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Caixia Xie
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Feiyu Zhou
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Chen Ma
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
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19
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Xu X, Zhou Z, Wang Z, Ma X, Chen X, Zhang X, Yu X, Yi W. Cobalt(III)‐Catalyzed and Dimethyl Sulfoxide‐Involved Cross‐Coupling of Ketones and Amides for Direct Synthesis of
β
‐Amino Ketones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900717] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Xuefeng Xu
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Zhi Zhou
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University, Guangzhou Guangdong 511436 People's Republic of China
| | - Zhipin Wang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xinna Ma
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xin Chen
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xu Zhang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
| | - Xiyong Yu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University, Guangzhou Guangdong 511436 People's Republic of China
| | - Wei Yi
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical EngineeringNanyang Normal University Nanyang 473061 People's Republic of China
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated HospitalGuangzhou Medical University, Guangzhou Guangdong 511436 People's Republic of China
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20
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Liu Y, Wang CL, Xia HM, Wang Z, Wang YF. Direct Csp 3-H methylenation of 2-arylacetamides using DMF/Me 2NH-BH 3 as the methylene source. Org Biomol Chem 2019; 17:6153-6157. [PMID: 31169277 DOI: 10.1039/c9ob00875f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A direct Csp3-H methylenation of 2-arylacetamides using DMF/Me2NH-BH3 as the methylene source was developed. The formyl group of DMF delivered the carbon and one hydrogen atoms, and the Me2NH-BH3 donated the remaining one hydrogen atom. This protocol offers a new alternative to make useful 2-arylacrylamides from simple starting materials.
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Affiliation(s)
- Yuting Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China.
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21
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Kumar Verma P, Vishwakarma RA, Sawant SD. Reaction Medium as the Installing Reservoir for Key Functionalities in the Molecules. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900223] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Praveen Kumar Verma
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| | - Ram A. Vishwakarma
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
| | - Sanghapal D. Sawant
- Medicinal Chemistry DivisionCSIR-Indian Institute of Integrative Medicine Canal Road Jammu- 180001 India
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22
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Gao X, Han S, Zheng M, Liang A, Li J, Zou D, Wu Y, Wu Y. Transition-Metal-Free Oxidation of Benzylic C-H Bonds of Six-Membered N-Heteroaromatic Compounds. J Org Chem 2019; 84:4040-4049. [PMID: 30854850 DOI: 10.1021/acs.joc.9b00035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel oxidation of benzylic C-H bonds for the synthesis of diverse six-membered N-heteroaromatic aldehydes and ketones has been developed. The obvious advantages of this approach are the simple operation, mild reaction conditions, and without use of toxic reagent and transition metal. The present method should provide a useful access for the synthesis and modification of N-heterocycles.
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Affiliation(s)
- Xianying Gao
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Shuaijun Han
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Maolin Zheng
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Apeng Liang
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Jingya Li
- Tetranov Biopharm LLC and Collaborative Innovation Center of New Drug Research and Safety Evaluation , Zhengzhou 450052 , People's Republic of China
| | - Dapeng Zou
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Yusheng Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China.,Tetranov Biopharm LLC and Collaborative Innovation Center of New Drug Research and Safety Evaluation , Zhengzhou 450052 , People's Republic of China.,Tetranov International, Inc. , 100 Jersey Avenue, Suite A340 , New Brunswick , New Jersey 08901 , United States
| | - Yangjie Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
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23
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Verma F, Shukla P, Bhardiya SR, Singh M, Rai A, Rai VK. Photocatalytic C(
sp
3
)−H Activation towards α‐methylenation of Ketones using MeOH as 1 C Source Steering Reagent. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801431] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Fooleswar Verma
- Department of ChemistryGuru Ghasidas Vishwavidyalaya (Central University) Bilaspur (C.G.)- 495009 INDIA
| | - Prashant Shukla
- School of Physical SciencesJawaharlal Nehru University New Delhi 110067 INDIA
| | - Smita R. Bhardiya
- Department of ChemistryGuru Ghasidas Vishwavidyalaya (Central University) Bilaspur (C.G.)- 495009 INDIA
| | - Manorama Singh
- Department of ChemistryGuru Ghasidas Vishwavidyalaya (Central University) Bilaspur (C.G.)- 495009 INDIA
| | - Ankita Rai
- School of Physical SciencesJawaharlal Nehru University New Delhi 110067 INDIA
| | - Vijai K. Rai
- Department of ChemistryGuru Ghasidas Vishwavidyalaya (Central University) Bilaspur (C.G.)- 495009 INDIA
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24
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Zhang Y, Yue Y, Wang X, Wang K, Lou Y, Yao M, Zhuo K, Lv Q, Liu J. DMSO‐Promoted Metal‐Free Aerobic Oxidation of Heterobenzylic Methylene to Prepare N‐Heterocyclic Ketones. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800576] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yanyan Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Xiaopei Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Ke Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Yixiao Lou
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Meihuan Yao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Qingzhang Lv
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
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25
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Gao Y, Zhou D, Ma Y. α-Csp3
-H Methylenation of Diketones to Synthesize Methylene-Bridged Bis-1,3-Dicarbonyl Compounds and Polysubstituted Pyridines Using the DMSO/Selectfluor System. ChemistrySelect 2018. [DOI: 10.1002/slct.201801996] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yejun Gao
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053, P R China
| | - Dongheng Zhou
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053, P R China
| | - Yongmin Ma
- School of Pharmaceutical Science; Zhejiang Chinese Medical University, Hangzhou; 310053, P R China
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26
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Gouveia APA, Taylor JG. Access to 3-Aroylchromanones from Dibenzoylmethanes via an Iron-Catalyzed α-Methylenation Reaction. ChemistrySelect 2018. [DOI: 10.1002/slct.201800029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ana Paula A. Gouveia
- Chemistry Department Federal University of Ouro Preto; Morro do Cruzeiro; OuroPreto, Minas Gerais 35400-000 Brazil
| | - Jason Guy Taylor
- Chemistry Department Federal University of Ouro Preto; Morro do Cruzeiro; OuroPreto, Minas Gerais 35400-000 Brazil
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27
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Danahy KE, Cooper JC, Van Humbeck JF. Benzylic Fluorination of Aza-Heterocycles Induced by Single-Electron Transfer to Selectfluor. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801280] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kelley E. Danahy
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave. Cambridge MA 02139 USA
| | - Julian C. Cooper
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave. Cambridge MA 02139 USA
| | - Jeffrey F. Van Humbeck
- Department of Chemistry; University of Calgary; 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
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28
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Danahy KE, Cooper JC, Van Humbeck JF. Benzylic Fluorination of Aza-Heterocycles Induced by Single-Electron Transfer to Selectfluor. Angew Chem Int Ed Engl 2018; 57:5134-5138. [PMID: 29486098 DOI: 10.1002/anie.201801280] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Indexed: 01/20/2023]
Abstract
A selective and mild method for the benzylic fluorination of aromatic azaheterocycles with Selectfluor is described. These reactions take place by a previously unreported mechanism, in which electron transfer from the heterocyclic substrate to the electrophilic fluorinating agent Selectfluor eventually yields a benzylic radical, thus leading to the desired C-F bond formation. This mechanism enables high intra- and intermolecular selectivity for aza-heterocycles over other benzylic components with similar C-H bond-dissociation energies.
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Affiliation(s)
- Kelley E Danahy
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Julian C Cooper
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Jeffrey F Van Humbeck
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
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29
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Reactivity of 2-benzylpyridyl lithium toward benzonitrile derivatives: Addition versus elimination. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.10.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Sathyamoorthi S, Banerjee S. Peroxydisulfate as an Oxidant in the Site-Selective Functionalization of sp3
C-H Bonds. ChemistrySelect 2017. [DOI: 10.1002/slct.201702090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shyam Sathyamoorthi
- Stanford University; Department of Chemistry; 333 Campus Drive Stanford CA 94305-4401 USA
| | - Shibdas Banerjee
- Indian Institute of Science Education and Research, Tirupati; Department of Chemistry; Karakambadi Road Tirupati- 517507 India
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31
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Liu J, Zhao S, Yan X, Zhang Y, Zhao S, Zhuo K, Yue Y. Elemental-Sulfur-Promoted C(sp3
)−H Activation of Methyl Heteroarenes Leading to Thioamides. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700532] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jianming Liu
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
| | - Shanshan Zhao
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
| | - Xuyang Yan
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
| | - Yanyan Zhang
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
| | - Shufang Zhao
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green; Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Ministry of Education; Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan 453007 P. R. China
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32
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Pothikumar R, Sujatha C, Namitharan K. Transition-Metal-Free In Situ Generation of Terminal Alkenes: Synthesis of Multisubstituted Acrylamidines via Tandem sp3 C–H Olefination/sp2 C–H Arylation Reactions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02819] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rajagopal Pothikumar
- Organic
Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University, Chennai 603203, India
| | - Chandragiri Sujatha
- Organic
Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University, Chennai 603203, India
| | - Kayambu Namitharan
- Organic
Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University, Chennai 603203, India
- Department
of Chemistry, SRM University-AP, Amaravati 522502, India
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33
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Luo XL, Liu XX, Pu JH, Tian WF, Zhou XQ, Wei DD, Huang GS. Palladium-Catalyzed Aerobic Oxidative Synthesis of 3-Phenylquinoline with Azides and Aldehydes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xin-Liang Luo
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xing-Xing Liu
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Jing-Hong Pu
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Wan-Fa Tian
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xiao-Qiang Zhou
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Dai-Dong Wei
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Guo-Sheng Huang
- State Key Laboratory of Applied Organic Chemistry; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou 730000 China
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34
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Sterckx H, Sambiagio C, Médran-Navarrete V, Maes BUW. Copper-Catalyzed Aerobic Oxygenation of Benzylpyridine N
-Oxides and Subsequent Post-Functionalization. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700588] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hans Sterckx
- Organic Synthesis (ORSY); Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Carlo Sambiagio
- Organic Synthesis (ORSY); Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Vincent Médran-Navarrete
- Organic Synthesis (ORSY); Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Bert U. W. Maes
- Organic Synthesis (ORSY); Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
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35
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Liu Y, Nie G, Zhou Z, Jia L, Chen Y. Copper-Catalyzed Oxidative Cross-Dehydrogenative Coupling/Oxidative Cycloaddition: Synthesis of 4-Acyl-1,2,3-Triazoles. J Org Chem 2017; 82:9198-9203. [DOI: 10.1021/acs.joc.7b01429] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Liu
- School
of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Gang Nie
- School
of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Zhongzhen Zhou
- Department
of Neuropharmacology and Novel Drug Discovery, School of Pharmaceutical
Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lihui Jia
- School
of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Yunfeng Chen
- School
of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
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36
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Liu YF, Ji PY, Xu JW, Hu YQ, Liu Q, Luo WP, Guo CC. Transition Metal-Free α-Csp3-H Methylenation of Ketones to Form C═C Bond Using Dimethyl Sulfoxide as Carbon Source. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00619] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu-Feng Liu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Peng-Yi Ji
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Jing-Wen Xu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Yu-Qun Hu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Qiang Liu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Wei-Ping Luo
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Can-Cheng Guo
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
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37
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Jin W, Zheng P, Wong WT, Law GL. Efficient Selenium-Catalyzed Selective C(sp3)−H Oxidation of Benzylpyridines with Molecular Oxygen. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601065] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Weiwei Jin
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Poonnapa Zheng
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Wing-Tak Wong
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Ga-Lai Law
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
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38
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Deb ML, Borpatra PJ, Pegu CD, Thakuria R, Saikia PJ, Baruah PK. Iodine/tert-Butyl Hydroperoxide-Mediated Reaction of Indoles with Dimethylformamide/Dimethylacetamide to Synthesize Bis- and Tris(indolyl)methanes. ChemistrySelect 2017. [DOI: 10.1002/slct.201601857] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
| | - Paran J. Borpatra
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
| | - Choitanya Dev Pegu
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
| | - Ranjit Thakuria
- Department of Chemistry; Gauhati University; Guwahati- 781014 Assam India
| | - Prakash J. Saikia
- Analytical Chemistry Division; CSIR-NEIST; Jorhat- 785006, Assam India
| | - Pranjal K. Baruah
- Department of Applied Sciences, GUIST; Gauhati University; Guwahati 781014 Assam India
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39
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Deb ML, Borpatra PJ, Saikia PJ, Baruah PK. Introducing tetramethylurea as a new methylene precursor: a microwave-assisted RuCl3-catalyzed cross dehydrogenative coupling approach to bis(indolyl)methanes. Org Biomol Chem 2017; 15:1435-1443. [DOI: 10.1039/c6ob02671k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The microwave-assisted synthesis of symmetrical/unsymmetrical bis(indolyl)methanes using tetramethylurea as a methylene source.
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Affiliation(s)
- Mohit L. Deb
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | - Paran J. Borpatra
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
| | | | - Pranjal K. Baruah
- Department of Applied Sciences
- GUIST
- Gauhati University
- Guwahati-781014
- India
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40
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Li Y, Tu DH, Wang B, Lu JY, Wang YY, Liu ZT, Liu ZW, Lu J. Nickel-catalyzed carbonylation of arylboronic acids with DMF as a CO source. Org Chem Front 2017. [DOI: 10.1039/c7qo00001d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By using N,N-dimethylformamide (DMF) as a CO source, nickel-catalyzed carbonylation of arylboronic acids was demonstrated as an efficient and facile protocol for the synthesis of diaryl ketones.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an
- China
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
| | - Dong-Huai Tu
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an
- China
| | - Bo Wang
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an
- China
| | - Ju-You Lu
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an
- China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an, 710069
- China
| | - Zhao-Tie Liu
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
| | - Zhong-Wen Liu
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
| | - Jian Lu
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an
- China
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41
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Nandwana NK, Dhiman S, Saini HK, Kumar I, Kumar A. Synthesis of Quinazolinones, Imidazo[1,2-c
]quinazolines and Imidazo[4,5-c
]quinolines through Tandem Reductive Amination of Aryl Halides and Oxidative Amination of C(sp3
)-H Bonds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601329] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nitesh Kumar Nandwana
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Shiv Dhiman
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Hitesh Kumar Saini
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Indresh Kumar
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
| | - Anil Kumar
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 330331 Pilani, Rajasthan India
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42
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Wang H, Wang Z, Huang H, Tan J, Xu K. KOtBu-Promoted Oxidation of (Hetero)benzylic Csp3–H to Ketones with Molecular Oxygen. Org Lett 2016; 18:5680-5683. [DOI: 10.1021/acs.orglett.6b02914] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Huiqiao Wang
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Zhong Wang
- Catalyst
Plant of PetroChina, Fushun Petrochemical Company, Fushun, Liaoning 113000, China
| | - Hongchun Huang
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
| | - Jiajing Tan
- Department
of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, China
| | - Kun Xu
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
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43
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Ren L, Wang L, Lü Y, Li G, Gao S. Direct oxidation of the C sp3 –H bonds of N-heterocyclic compounds to give the corresponding ketones using a reusable heterogeneous MnO x -N@C catalyst. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(16)62503-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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45
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Kaswan P, Nandwana NK, DeBoef B, Kumar A. Vanadyl Acetylacetonate Catalyzed Methylenation of Imidazo[1,2-a]pyridines by Using Dimethylacetamide as a Methylene Source: Direct Access to Bis(imidazo[1,2-a]pyridin-3-yl)methanes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600225] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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46
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Modi A, Ali W, Patel BK. N,N-Dimethylacetamide (DMA) as a Methylene Synthon for Regioselective Linkage of Imidazo[1,2-a]pyridine. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600067] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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47
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Chen F, Yang XL, Wu ZW, Han B. Synthesis of Isoxazoline/Cyclic Nitrone-Featured Methylenes Using Unsaturated Ketoximes: A Dual Role of TEMPO. J Org Chem 2016; 81:3042-50. [DOI: 10.1021/acs.joc.6b00180] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fei Chen
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiu-Long Yang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhi-Wei Wu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Bing Han
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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48
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Fang X, Yu P, Morandi B. Catalytic reversible alkene-nitrile interconversion through controllable transfer hydrocyanation. Science 2016; 351:832-6. [DOI: 10.1126/science.aae0427] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xianjie Fang
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Nordrhein-Westfalen 45470, Germany
| | - Peng Yu
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Nordrhein-Westfalen 45470, Germany
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Nordrhein-Westfalen 45470, Germany
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49
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Sterckx H, De Houwer J, Mensch C, Herrebout W, Tehrani KA, Maes BUW. Base metal-catalyzed benzylic oxidation of (aryl)(heteroaryl)methanes with molecular oxygen. Beilstein J Org Chem 2016; 12:144-53. [PMID: 26877817 PMCID: PMC4734388 DOI: 10.3762/bjoc.12.16] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/12/2016] [Indexed: 12/30/2022] Open
Abstract
The methylene group of various substituted 2- and 4-benzylpyridines, benzyldiazines and benzyl(iso)quinolines was successfully oxidized to the corresponding benzylic ketones using a copper or iron catalyst and molecular oxygen as the stoichiometric oxidant. Application of the protocol in API synthesis is exemplified by the alternative synthesis of a precursor to the antimalarial drug Mefloquine. The oxidation method can also be used to prepare metabolites of APIs which is illustrated for the natural product papaverine. ICP-MS analysis of the purified reaction products revealed that the base metal impurity was well below the regulatory limit.
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Affiliation(s)
- Hans Sterckx
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Johan De Houwer
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Carl Mensch
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Wouter Herrebout
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | | | - Bert U W Maes
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
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50
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Wu X, Zhang J, Liu S, Gao Q, Wu A. An Efficient Synthesis of Polysubstituted Pyridines
via
CH Oxidation and CS Cleavage of Dimethyl Sulfoxide. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500683] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Shan Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
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