1
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Fernandes RA, Ranjan RS, Choudhary P. K 2S 2O 8-Mediated or Azobisisobutyronitrile-Catalyzed Regioselective Aerobic Oxidative Cleavage of 1-Arylbutadienes to Cinnamaldehydes. Org Lett 2024; 26:6247-6252. [PMID: 39018343 DOI: 10.1021/acs.orglett.4c02241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
This work reveals the regioselective oxidative cleavage of 1-arylbutadienes to cinnamaldehydes mediated by K2S2O8 or catalyzed by azobisisobutyronitrile, a very common free radical initiator, in an easy to handle, simple procedure and free of transition metals. This approach demonstrates excellent regioselectivity, mild reaction conditions, and compatibility with a broad range of functional groups (45 examples).
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Affiliation(s)
- Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Ravikant S Ranjan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Priyanka Choudhary
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
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2
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Muskan, Verma AK. o-Alkynylaryl 2-Cyanoacrylates: A Synthon for the Construction of Diverse Isoquinolones/Napthyridinones. Org Lett 2024; 26:1238-1242. [PMID: 38323799 DOI: 10.1021/acs.orglett.4c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
o-Alkynylaryl 2-cyanoacrylates have been disclosed as a new synthon for the regioselective synthesis of isoquinolones and naphthyridinones under mild reaction conditions. The attractive feature of this investigation includes carbon-carbon double bond cleavage under metal-free conditions by an intramolecular SN2 reaction. Incorporating two distinct C-I bonds in the resulting products provides facile opportunity for structural elaboration. The viability of the present protocol was unveiled by postfunctionalization with drug analogues and gram-scale synthesis.
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Affiliation(s)
- Muskan
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Akhilesh K Verma
- Department of Chemistry, University of Delhi, Delhi-110007, India
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3
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Miyazaki M, Ura Y. Palladium/Iron-Catalyzed Wacker-Type Oxidation of Aliphatic Terminal and Internal Alkenes Using O 2. ACS OMEGA 2023; 8:41983-41990. [PMID: 37969998 PMCID: PMC10634151 DOI: 10.1021/acsomega.3c07577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 10/06/2023] [Indexed: 11/17/2023]
Abstract
The Wacker-type oxidation of aliphatic terminal alkenes proceeds using a Pd/Fe catalyst system under mild reaction conditions using 1 atm O2 without other additives. The use of 1,2-dimethoxyethane/H2O as a mixed solvent was effective. The slow addition of alkenes is also important for improving product yields. Fe(III) citrate was the most efficient cocatalyst among the iron complexes examined, whereas other complexes such as FeSO4, Fe2(SO4)3, Fe(NO3)3, and Fe2O3 were also operative. This method is also applicable to aliphatic internal alkenes, which are generally difficult to oxidize using conventional Pd/Cu catalyst systems. The gram-scale synthesis and reuse of the Pd catalysts were also demonstrated.
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Affiliation(s)
- Mayu Miyazaki
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
| | - Yasuyuki Ura
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
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4
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Jyoti, Dwivedi P, Negi P, Chauhan R, Gosavi SW, Mishra BB. Alkaline hydrolysis of spent aromatic biomass for production of phenolic aldehydes, lignin, and cellulose. BIORESOURCE TECHNOLOGY 2023; 387:129659. [PMID: 37573982 DOI: 10.1016/j.biortech.2023.129659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
In order to combat the environmental issues associated with the burning of spent aromatic biomass (SAB), a method for alkaline hydrolysis of SAB has been developed to afford phenolic acids, predominantly the p-coumaric acid, lignin, and cellulose. Lignin (∼15 wt%) from alkaline hydrolysate was separated by precipitation while a mixture of phenolic acids obtained was directly reacted with a green reagent, PhI(OAc)2, under one-pot condition to afford a mixture of p-hydroxybenzaldehyde (>90 wt%) and vanillin (<10 wt%). Unreacted biomass obtained in the process was successfully used as a substrate for the production of cellulose (∼40 wt%). The developed method exhibits potential for application on an industrial scale.
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Affiliation(s)
- Jyoti
- Center of Innovative and Applied Bioprocessing (CIAB), Sector 81 (Knowledge City), S.A.S. Nagar, Mohali140306, Punjab, India; Department of Chemistry, Faculty of Science, Panjab University, Sector 14, Chandigarh 160014, India
| | - Pratibha Dwivedi
- Center of Innovative and Applied Bioprocessing (CIAB), Sector 81 (Knowledge City), S.A.S. Nagar, Mohali140306, Punjab, India
| | - Pooja Negi
- Center of Innovative and Applied Bioprocessing (CIAB), Sector 81 (Knowledge City), S.A.S. Nagar, Mohali140306, Punjab, India; Department of Chemistry, Faculty of Science, Panjab University, Sector 14, Chandigarh 160014, India
| | - Ratna Chauhan
- Department of Environmental Science, Savitribai Phule Pune University, Pune 411007, India
| | - Suresh W Gosavi
- Department of Environmental Science, Savitribai Phule Pune University, Pune 411007, India; Department of Physics, Savitribai Phule Pune University, Pune 411007, India
| | - Bhuwan B Mishra
- Center of Innovative and Applied Bioprocessing (CIAB), Sector 81 (Knowledge City), S.A.S. Nagar, Mohali140306, Punjab, India.
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5
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Nikl J, Hofman K, Mossazghi S, Möller IC, Mondeshki D, Weinelt F, Baumann FE, Waldvogel SR. Electrochemical oxo-functionalization of cyclic alkanes and alkenes using nitrate and oxygen. Nat Commun 2023; 14:4565. [PMID: 37507379 PMCID: PMC10382549 DOI: 10.1038/s41467-023-40259-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Direct functionalization of C(sp3)-H bonds allows rapid access to valuable products, starting from simple petrochemicals. However, the chemical transformation of non-activated methylene groups remains challenging for organic synthesis. Here, we report a general electrochemical method for the oxidation of C(sp3)-H and C(sp2)-H bonds, in which cyclic alkanes and (cyclic) olefins are converted into cycloaliphatic ketones as well as aliphatic (di)carboxylic acids. This resource-friendly method is based on nitrate salts in a dual role as anodic mediator and supporting electrolyte, which can be recovered and recycled. Reducing molecular oxygen as a cathodic counter reaction leads to efficient convergent use of both electrode reactions. By avoiding transition metals and chemical oxidizers, this protocol represents a sustainable oxo-functionalization method, leading to a valuable contribution for the sustainable conversion of petrochemical feedstocks into synthetically usable fine chemicals and commodities.
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Affiliation(s)
- Joachim Nikl
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Kamil Hofman
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Samuel Mossazghi
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Isabel C Möller
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Daniel Mondeshki
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Frank Weinelt
- Evonik Operations GmbH, Paul-Baumann-Strasse 1, 45772, Marl, Germany
| | | | - Siegfried R Waldvogel
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany.
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6
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Feng Q, Wang Y, Zheng B, Huang S. Electrochemical Oxidative Cleavage of Alkynes to Carboxylic Acids. Org Lett 2023; 25:293-297. [PMID: 36587377 DOI: 10.1021/acs.orglett.2c04204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A sustainable method for converting terminal alkynes into their corresponding carboxylic acids is reported using synthetic electrolysis in an undivided cell at room temperature. This protocol, avoiding transition metal catalysis and stoichiometric chemical oxidants, tolerates a variety of aryl, heteroaryl, and alkyl akynes. Preliminary mechanistic studies demonstrate that sodium nitrite serves a triple role as the electrolyte, nitryl radical precursor, and a nitrosating reagent.
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Affiliation(s)
- Qingyuan Feng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yamin Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Binnan Zheng
- Ningxia Best Pharmaceutical Chemical Co., Ltd., Yinchuan 750411, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
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7
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Motiwala HF, Armaly AM, Cacioppo JG, Coombs TC, Koehn KRK, Norwood VM, Aubé J. HFIP in Organic Synthesis. Chem Rev 2022; 122:12544-12747. [PMID: 35848353 DOI: 10.1021/acs.chemrev.1c00749] [Citation(s) in RCA: 124] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) is a polar, strongly hydrogen bond-donating solvent that has found numerous uses in organic synthesis due to its ability to stabilize ionic species, transfer protons, and engage in a range of other intermolecular interactions. The use of this solvent has exponentially increased in the past decade and has become a solvent of choice in some areas, such as C-H functionalization chemistry. In this review, following a brief history of HFIP in organic synthesis and an overview of its physical properties, literature examples of organic reactions using HFIP as a solvent or an additive are presented, emphasizing the effect of solvent of each reaction.
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Affiliation(s)
- Hashim F Motiwala
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Ahlam M Armaly
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jackson G Cacioppo
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Thomas C Coombs
- Department of Chemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403 United States
| | - Kimberly R K Koehn
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Verrill M Norwood
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jeffrey Aubé
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
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8
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Nguyen OT, Nguyen TD, Quang TH, Huy TH, Trang PQ, Sy DT. A bimetallic‐catalyzed oxidative esterification reaction forming α‐acyloxy ether. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202100634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Oanh T.K. Nguyen
- Institute of Applied Technology and Sustainable Development Nguyen Tat Thanh University 298A-300A Nguyen Tat Thanh Street, Ward 13, District 4 Ho Chi Minh City 700000 Vietnam
| | - Trinh Duy Nguyen
- Institute of Applied Technology and Sustainable Development Nguyen Tat Thanh University 298A-300A Nguyen Tat Thanh Street, Ward 13, District 4 Ho Chi Minh City 700000 Vietnam
| | - Tran Huu Quang
- Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay District Ha Noi City 10072 Vietnam
| | - Tran Huu Huy
- Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay District Ha Noi City 10072 Vietnam
| | - Pham Quynh Trang
- Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay District Ha Noi City 10072 Vietnam
| | - Do Trung Sy
- Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay District Ha Noi City 10072 Vietnam
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9
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Muthusamy S, Prabu A. BF 3·OEt 2 catalyzed chemoselective CC bond cleavage of α,β-enones: an unexpected synthesis of 3-alkylated oxindoles and spiro-indolooxiranes. Org Biomol Chem 2021; 20:558-564. [PMID: 34939633 DOI: 10.1039/d1ob02002a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A BF3·OEt2 catalyzed highly chemoselective formal CC double bond cleavage reaction of α,β-enones with diazoamides for the synthesis of 3-alkylated oxindoles is developed. Boron trifluoride etherate is found to be an effective catalyst for the chemoselective Cα-Cβ cleavage of enones to obtain 3-alkylated oxindoles. The product formation indicates a selective β-carbon elimination pathway of α,β-enones using the inexpensive BF3·OEt2 as a catalyst, transition metal-free conditions, an open-air environment, good functional tolerance and broad substrate scope. The synthetic utility of this protocol is highlighted by synthesizing spiro-indolooxiranes.
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Affiliation(s)
| | - Ammasi Prabu
- School of Chemistry, Bharathidasan University, Tiruchirappalli-620 024, India.
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10
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Ou J, Tan H, He S, Wang W, Hu B, Yu G, Liu K. 1,2-Dibutoxyethane-Promoted Oxidative Cleavage of Olefins into Carboxylic Acids Using O 2 Under Clean Conditions. J Org Chem 2021; 86:14974-14982. [PMID: 34634904 DOI: 10.1021/acs.joc.1c01701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we report the first example of an effective and green approach for the oxidative cleavage of olefins to carboxylic acids using a 1,2-dibutoxyethane/O2 system under clean conditions. This novel oxidation system also has excellent functional-group tolerance and is applicable for large-scale synthesis. The target products were prepared in good to excellent yields by a one-pot sequential transformation without an external initiator, catalyst, and additive.
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Affiliation(s)
- Jinhua Ou
- Department of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China.,College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Hong Tan
- Department of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Saiyu He
- Department of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Wei Wang
- Department of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Bonian Hu
- Department of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Gang Yu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Kaijian Liu
- Department of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
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11
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Xie P, Xue C, Du D, Shi S. Photo-induced oxidative cleavage of C-C double bonds for the synthesis of biaryl methanone via CeCl 3 catalysis. Org Biomol Chem 2021; 19:6781-6785. [PMID: 34312650 DOI: 10.1039/d1ob01002f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ce-catalyzed strategy is developed to produce biaryl methanones via photooxidative cleavage of C-C double bonds at room temperature. This reaction is performed under air and demonstrates high activity as well as functional group tolerance. A synergistic Ce/ROH catalytic mechanism is also proposed based on the experimental observations. This protocol should be the first successful Ce-catalyzed photooxidation reaction of olefins with air as the oxidant, which would provide inspiration for the development of novel Ce-catalyzed photochemical synthesis processes.
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Affiliation(s)
- Pan Xie
- College of Chemistry and Chemistry Engineering, Shaanxi Key Laboratory of Chemistry Additives for Industry, Shaanxi University of Science & Technology, Xi'an 710021, China.
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12
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Ai JJ, Liu BB, Li J, Wang F, Huang CM, Rao W, Wang SY. Fe-S Catalyst Generated In Situ from Fe(III)- and S 3•--Promoted Aerobic Oxidation of Terminal Alkenes. Org Lett 2021; 23:4705-4709. [PMID: 34060853 DOI: 10.1021/acs.orglett.1c01408] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An iron-sulfur complex formed by the simple mixture of FeCl3 with S3•- generated in situ from K2S is developed and applied to selective aerobic oxidation of terminal alkenes. The reaction was carried out under an atmosphere of O2 (balloon) and could proceed on a gram scale, expanding the application of S3•- in organic synthesis. This study also encourages us to explore the application of an Fe-S catalyst in organic reactions.
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Affiliation(s)
- Jing-Jing Ai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Bei-Bei Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Jian Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Fei Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Cheng-Mi Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Weidong Rao
- Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
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13
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Hashimoto T, Maruyama T, Ishimaru T, Matsugaki M, Shiota K, Yamaguchi Y. Wacker‐Tsuji‐Type Oxidation Reactions of Styrene Derivatives Catalyzed by Ferrate. ChemistrySelect 2021. [DOI: 10.1002/slct.202101752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Toru Hashimoto
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
- Department of Applied Chemistry Faculty of Engineering Sanyo-Onoda City University Sanyo-Onoda Yamaguchi 756-0884 Japan
| | - Tsubasa Maruyama
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Toshiya Ishimaru
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Masaru Matsugaki
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Keisuke Shiota
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Yoshitaka Yamaguchi
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
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14
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Jud W, Kappe CO, Cantillo D. One‐pot multistep electrochemical strategy for the modular synthesis of epoxides, glycols, and aldehydes from alkenes. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Wolfgang Jud
- Institute of Chemistry University of Graz NAWI Graz Graz Austria
- Center for Continuous Flow Synthesis and Processing (CCFLOW) Research Center Pharmaceutical Engineering GmbH (RCPE) Graz Austria
| | - C. Oliver Kappe
- Institute of Chemistry University of Graz NAWI Graz Graz Austria
- Center for Continuous Flow Synthesis and Processing (CCFLOW) Research Center Pharmaceutical Engineering GmbH (RCPE) Graz Austria
| | - David Cantillo
- Institute of Chemistry University of Graz NAWI Graz Graz Austria
- Center for Continuous Flow Synthesis and Processing (CCFLOW) Research Center Pharmaceutical Engineering GmbH (RCPE) Graz Austria
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15
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Farshadfar K, Bird MJ, Olivier WJ, Hyland CJT, Smith JA, Ariafard A. Computational Investigation into the Mechanistic Features of Bromide-Catalyzed Alcohol Oxidation by PhIO in Water. J Org Chem 2021; 86:2998-3007. [PMID: 33502190 DOI: 10.1021/acs.joc.0c02903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Iodosobenzene (PhIO) is known to be a potent oxidant for alcohols in the presence of catalytic bromide in water. In order to understand this important and practical oxidation process, we have conducted density functional theory studies to shed light on the reaction mechanism. The key finding of this study is that PhIO is not the reactive oxidant itself. Instead, the active oxidant is hypobromite (BrO-), which is generated by the reaction of PhIO with bromide through an SN2-type reaction. Critically, water acts as a cocatalyst in the generation of BrO- through lowering the activation energy of this process. This investigation also demonstrates why BrO- is a more powerful oxidant than PhIO in the oxidation of alcohols. Other halide additives have been reported experimentally to be less effective catalysts than bromide-our calculations provide a clear rationale for these observations. We also examined the effect of replacing water with methanol on the ease of the SN2 reaction, finding that the replacement resulted in a higher activation barrier for the generation of BrO-. Overall, this work demonstrates that the hypervalent iodine(III) reagent PhIO can act as a convenient and controlled precursor of the oxidant hypobromite if the right conditions are present.
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Affiliation(s)
- Kaveh Farshadfar
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
| | - Melissa J Bird
- School of Chemistry and Molecular Bioscience, Molecular Horizons Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Wesley J Olivier
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Christopher J T Hyland
- School of Chemistry and Molecular Bioscience, Molecular Horizons Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Jason A Smith
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Alireza Ariafard
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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16
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Wang X, Li Y, Li Z. Thiol-initiated photocatalytic oxidative cleavage of the CC bond in olefins and its extension to direct production of acetals from olefins. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01963a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Oxidative cleavage of a broad scope of olefins is realized over ZnIn2S4 under visible light, using air as oxidant and thiol as initiator. Coupled with the condensation between aldehydes/ketones and alcohols, this strategy can be used to yield acetals directly from olefins.
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Affiliation(s)
- Xinglin Wang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116
| | - Yuanyuan Li
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116
| | - Zhaohui Li
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350116
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17
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1,1,1,3,3,3-Hexafluoroisopropanol as an efficient medium for the room temperature oxidation of styrenes to benzaldehydes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152527] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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18
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Zhao P, Yu XX, Zhou Y, Huang C, Wu YD, Zhu YP, Wu AX. Arylacetylenes as two-carbon synthons: synthesis of eight-membered rings via C[triple bond, length as m-dash]C bond cleavage. Chem Commun (Camb) 2020; 56:12554-12557. [PMID: 32940307 DOI: 10.1039/d0cc05363e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The first synthesis of eight-membered N-containing heterocycles by oxidative bicyclization/ring extension of arylacetylenes and aryl amines has been achieved. This protocol uses arylacetylene as an unusual two-carbon synthon by incorporating the two parts of the cracked C[triple bond, length as m-dash]C bond into the final product, which provides a new method for using arylacetylenes as two-carbon synthons and further enriches C[triple bond, length as m-dash]C bond cleavage methodology. Moreover, this multi-component reaction can provide diverse fused elegant eight-membered N-heterocycles under mild conditions with wide substrate scopes.
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Affiliation(s)
- Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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19
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Du L, Wang Z, Wu J. Iodobenzene-catalyzed oxidative cleavage of olefins to carbonyl compounds. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152204] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Firoozi S, Hosseini-Sarvari M. Photo-Difunctionalization and Photo-Oxidative Cleavage of the C-C Double Bond of Styrenes in the Presence of Nanosized Cadmium Sulfide (CdS) as a Highly Efficient Photo-Induced Reusable Nanocatalyst. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000448] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Somayeh Firoozi
- Department of Chemistry; College of Science; Shiraz University; 7194684795 Shiraz I.R. Iran
| | - Mona Hosseini-Sarvari
- Department of Chemistry; College of Science; Shiraz University; 7194684795 Shiraz I.R. Iran
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21
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Chen SK, Yang JS, Dai KL, Zhang FM, Zhang XM, Tu YQ. Exploration of a KI-catalyzed oxidation system for direct construction of bispyrrolidino[2,3-b]indolines and the total synthesis of (+)-WIN 64821. Chem Commun (Camb) 2020; 56:121-124. [DOI: 10.1039/c9cc08646c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A facile and environmentally benign KI(cat.)/NaBO3·4H2O oxidation system has been developed for the tandem oxidative aminocyclization/coupling of tryptamines, affording a series of 3a,3a′-bispyrrolidino[2,3-b]indolines with high efficiency (up to 94% yield).
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Affiliation(s)
- Si-Kai Chen
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ju-Song Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Kun-Long Dai
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemistry and Chemical Engineering
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22
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Hong L, Spielmeyer A, Pfeiffer J, Wegner HA. Domino lignin depolymerization and reconnection to complex molecules mediated by boryl radicals. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00558d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Lignin has been demonstrated as a source of complex molecules via a boryl-mediated domino degradation/reconnection process.
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Affiliation(s)
- Longcheng Hong
- Institute of Organic Chemistry
- Justus Liebig University
- 35392 Gießen
- Germany
- Center for Materials Research (LaMa)
| | - Astrid Spielmeyer
- Institute of Food Chemistry and Food Biotechnology
- Justus Liebig University
- 35392 Gießen
- Germany
| | - Janin Pfeiffer
- Institute of Food Chemistry and Food Biotechnology
- Justus Liebig University
- 35392 Gießen
- Germany
| | - Hermann A. Wegner
- Institute of Organic Chemistry
- Justus Liebig University
- 35392 Gießen
- Germany
- Center for Materials Research (LaMa)
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23
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Katta N, Ojha M, Murugan A, Arepally S, Sharada DS. Visible light-mediated photocatalytic oxidative cleavage of activated alkynes via hydroamination: a direct approach to oxamates. RSC Adv 2020; 10:12599-12603. [PMID: 35497603 PMCID: PMC9051298 DOI: 10.1039/c9ra10555g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/26/2020] [Indexed: 01/31/2023] Open
Abstract
The direct oxidative cleavage of activated alkynes via hydroamination has been described using organic photocatalyst under visible-light irradiation at room temperature. In this reaction, the single electron oxidation of an in situ formed enamine followed by radical coupling with an oxidant finally delivers the oxamate. The key features of this photocatalytic reaction are the mild reaction conditions, metal-free organic dye as a photocatalyst, and TBHP playing a dual role as “O” source and for the regeneration of the photocatalyst. The direct oxidative cleavage of activated alkynes via hydroamination has been described using organic photocatalyst under visible-light irradiation at room temperature.![]()
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Affiliation(s)
- Narenderreddy Katta
- Catalysis & Chemical Biology Laboratory
- Department of Chemistry Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Mamata Ojha
- Catalysis & Chemical Biology Laboratory
- Department of Chemistry Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Arumugavel Murugan
- Catalysis & Chemical Biology Laboratory
- Department of Chemistry Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Sagar Arepally
- Catalysis & Chemical Biology Laboratory
- Department of Chemistry Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Duddu S. Sharada
- Catalysis & Chemical Biology Laboratory
- Department of Chemistry Indian Institute of Technology Hyderabad
- Sangareddy
- India
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24
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Suresh M, Kumari A, Singh RB. A transition metal free expedient approach for the C C bond cleavage of arylidene Meldrum's acid and malononitrile derivatives. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Yao W, Wu Q, Huang R, Zhang Y, Yang Y, Zhang L, Wang D. The Practical Method to Synthesize Gold Nanoparticles Supported on Hydrotalcite and Application on Oxidation and Hydration Reactions. ChemistrySelect 2019. [DOI: 10.1002/slct.201902730] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wei Yao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Qiang Wu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Ronghui Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Yilin Zhang
- Department of ChemistryWest Virginia University, Morgantown West Virginia 26506 United States
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation TechnologyJiangnan University Wuxi 214122 China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
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26
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Kiss L, Ouchakour L, Ábrahámi RA, Nonn M. Stereocontrolled Synthesis of Functionalized Azaheterocycles from Carbocycles through Oxidative Ring Opening/Reductive Ring Closing Protocols. CHEM REC 2019; 20:120-141. [PMID: 31250972 DOI: 10.1002/tcr.201900025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/23/2019] [Accepted: 05/29/2019] [Indexed: 12/11/2022]
Abstract
Fluorine-containing organic scaffolds are of significant interest in medicinal chemistry. The incorporation of fluorine into biomolecules can lead to remarkable changes in their physical, chemical, and biological properties. There are already many drugs on the market, which contain at least one fluorine atom. Saturated functionalized azaheterocycles as bioactive substances have gained increasing attention in pharmaceutical chemistry. Due to the high biorelevance of organofluorine molecules and the importance of N-heterocyclic compounds, selective stereocontrolled procedures to the access of new fluorine-containing saturated N-heterocycles are considered to be a hot research topic. This account summarizes the synthesis of functionalized and fluorine-containing saturated azaheterocycles starting from functionalized cycloalkenes and based on oxidative ring cleavage of diol intermediates followed by ring expansion with reductive amination.
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Affiliation(s)
- Loránd Kiss
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, Hungary
| | - Lamiaa Ouchakour
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, Hungary
| | - Renáta A Ábrahámi
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Melinda Nonn
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary.,University of Szeged, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Chemistry, Hungary
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27
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Zhang YH, Zhang WW, Zhang ZY, Zhao K, Loh TP. Manganese-Catalyzed Ring-Opening Coupling Reactions of Cyclopropanols with Enones. Org Lett 2019; 21:5101-5105. [DOI: 10.1021/acs.orglett.9b01703] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Yong-Hui Zhang
- 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
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen 518083, China
| | - Wen-Wei Zhang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen 518083, China
| | - Ze-Yu Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Kai Zhao
- 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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28
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Chen K, Xu T, Liang J, Zhou M, Zhang J, Hao WJ, Wang J, Tu SJ, Jiang B. Completely regioselective insertion of unsymmetrical alkynes into electron-deficient alkenes for the synthesis of new pentacyclic indoles. Chem Commun (Camb) 2019; 55:14757-14760. [DOI: 10.1039/c9cc08762a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A Lewis acid catalyzed insertion of unsymmetrical alkynes into electron-deficient alkenes has been reported for the first time, leading to 34 examples of hitherto unreported pentacyclic benzo[5,6]chromeno[2,3-b]indoles.
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Affiliation(s)
- Ke Chen
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Ting Xu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Jian Liang
- Medical College, Guangxi University
- Nanning 530004
- P. R. China
| | - Meng Zhou
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Jie Zhang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Jianyi Wang
- Medical College, Guangxi University
- Nanning 530004
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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29
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Xu K, Li Z, Cheng F, Zuo Z, Wang T, Wang M, Liu L. Transition-Metal-Free Cleavage of C–C Triple Bonds in Aromatic Alkynes with S8 and Amides Leading to Aryl Thioamides. Org Lett 2018; 20:2228-2231. [DOI: 10.1021/acs.orglett.8b00573] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | | | | | - Zhenzhen Zuo
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | | | - Mincan Wang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lantao Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
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30
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Kolle S, Batra S. Transformations of alkynes to carboxylic acids and their derivatives via C[triple bond, length as m-dash]C bond cleavage. Org Biomol Chem 2018; 14:11048-11060. [PMID: 27805215 DOI: 10.1039/c6ob01912a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Alkynes are building blocks of high synthetic value and their usefulness as precursors to many chemical and biological systems is widely established. Amongst several transformations of alkynes, cleavage of the C[triple bond, length as m-dash]C bond for obtaining diverse compounds is considered to be important. This review, in particular, comprehensively assimilates the transformations of alkynes to carboxylic acids including esters, amides and nitriles resulting from the cleavage of the C[triple bond, length as m-dash]C bond either under the influence of a metal catalyst or via a metal-free approach.
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Affiliation(s)
- Shivalinga Kolle
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Sanjay Batra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110025, India
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31
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Panda N, Mattan I. One-pot two-step synthesis of 3-iodo-4-aryloxy coumarins and their Pd/C-catalyzed annulation to coumestans. RSC Adv 2018; 8:7716-7725. [PMID: 35539154 PMCID: PMC9078490 DOI: 10.1039/c7ra12419h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/11/2018] [Indexed: 11/21/2022] Open
Abstract
An efficient protocol for the synthesis of various coumestans from the intramolecular annulation of 3-iodo-4-aryloxy coumarins through C–H activation has been developed.
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Affiliation(s)
- Niranjan Panda
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Irshad Mattan
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
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32
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Wang SE, He Q, Fan R. Iodobenzene-Catalyzed Ortho-Dearomatization and Aromatization-Triggered Rearrangement of 2-Allylanilines: Construction of Indolin-3-ylmethanols with High Diastereoselectivities. Org Lett 2017; 19:6478-6481. [DOI: 10.1021/acs.orglett.7b02986] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Shuo-En Wang
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Qiuqin He
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Renhua Fan
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
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33
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Wang JY, Zhou P, Li G, Hao WJ, Tu SJ, Jiang B. Synthesis of Functionalized Benzo[g]indoles and 1-Naphthols via Carbon–Carbon Triple Bond Breaking/Rearranging. Org Lett 2017; 19:6682-6685. [DOI: 10.1021/acs.orglett.7b03410] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jia-Yin Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Peng Zhou
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210093, P. R. China
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210093, P. R. China
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- 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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34
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Yin B, Peng X, Huang P, Huang Q, Liu L. Novel oxidative aromatic alkene cleavage with sodium nitrite under mild conditions. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1363894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Bo Yin
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi, P. R. China
| | - Xiangjun Peng
- School of Pharmaceutical Science, Gannan Medical University, Ganzhou, Jiangxi, P. R. China
| | - Panpan Huang
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi, P. R. China
| | - Qing Huang
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi, P. R. China
| | - Liangxian Liu
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi, P. R. China
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35
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Hone CA, O'Kearney-McMullan A, Munday R, Kappe CO. A Continuous-Flow Process for Palladium-Catalyzed Olefin Cleavage by using Oxygen within the Explosive Regime. ChemCatChem 2017. [DOI: 10.1002/cctc.201700671] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christopher A. Hone
- Institute of Chemistry; University of Graz, NAWI Graz; Heinrichstrasse 28 A-8010 Graz Austria
- Research Center Pharmaceutical Engineering (RCPE); Inffeldgasse 13 8010 Graz Austria
| | | | - Rachel Munday
- AstraZeneca; Silk Road Business Park; Macclesfield SK10 2NA United Kingdom
| | - C. Oliver Kappe
- Institute of Chemistry; University of Graz, NAWI Graz; Heinrichstrasse 28 A-8010 Graz Austria
- Research Center Pharmaceutical Engineering (RCPE); Inffeldgasse 13 8010 Graz Austria
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36
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Liu Y, Xue D, Li C, Xiao J, Wang C. Reactions catalyzed by a binuclear copper complex: selective oxidation of alkenes to carbonyls with O2. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01757j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A binuclear copper complex bearing a simple salicylate ligand catalyses the efficient cleavage of styrenes into ketones and aldehydes with O2 as the oxidant. The reaction works under an atmosphere of O2 (balloon) with 0.5 mol% of catalyst and could be performed on a gram scale, providing an alternative to ozonolysis.
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Affiliation(s)
- Yuxia Liu
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Department of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Department of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
| | - Chaoqun Li
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Department of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Department of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Department of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
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37
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Ding Y, Li H, Meng Y, Zhang T, Li J, Chen QY, Zhu C. Direct synthesis of hydrazones by visible light mediated aerobic oxidative cleavage of the CC bond. Org Chem Front 2017. [DOI: 10.1039/c7qo00276a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A metal-free protocol through visible light mediated oxidative cleavage of CC bonds to directly construct CN bonds has been developed for the conversion of alkenes to hydrazones under mild conditions.
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Affiliation(s)
- Ya Ding
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Hao Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Yunge Meng
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Te Zhang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Jiawen Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Chunyin Zhu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
- State Key Laboratory of Physical Chemistry of Solid Surfaces
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38
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Miyamoto K, Yamashita J, Narita S, Sakai Y, Hirano K, Saito T, Wang C, Ochiai M, Uchiyama M. Iodoarene-catalyzed oxidative transformations using molecular oxygen. Chem Commun (Camb) 2017; 53:9781-9784. [DOI: 10.1039/c7cc05160c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular oxygen serves as an oxidant for the glycol scission of diols and the Hofmann rearrangement of amides using an iodoarene catalyst.
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Affiliation(s)
- K. Miyamoto
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - J. Yamashita
- Graduate School of Pharmaceutical Sciences
- University of Tokushima
- Tokushima 770-8505
- Japan
| | - S. Narita
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Y. Sakai
- Graduate School of Pharmaceutical Sciences
- University of Tokushima
- Tokushima 770-8505
- Japan
| | - K. Hirano
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - T. Saito
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - C. Wang
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - M. Ochiai
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - M. Uchiyama
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
- Advanced Elements Chemistry Research Team
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39
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Davydova MP, Vasilevsky SF, Nenajdenko VG. Reaction of trifluoroacetyl acetylenes with β-amino alcohols. Synthesis of enaminoketones and unusual fragmentation. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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40
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Wan JP, Gao Y, Wei L. Recent Advances in Transition-Metal-Free Oxygenation of Alkene C=C Double Bonds for Carbonyl Generation. Chem Asian J 2016; 11:2092-102. [DOI: 10.1002/asia.201600671] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Jie-Ping Wan
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P. R. China
| | - Yong Gao
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P. R. China
| | - Li Wei
- College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 P. R. China
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41
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Abstract
The preparation, structure, and chemistry of hypervalent iodine compounds are reviewed with emphasis on their synthetic application. Compounds of iodine possess reactivity similar to that of transition metals, but have the advantage of environmental sustainability and efficient utilization of natural resources. These compounds are widely used in organic synthesis as selective oxidants and environmentally friendly reagents. Synthetic uses of hypervalent iodine reagents in halogenation reactions, various oxidations, rearrangements, aminations, C-C bond-forming reactions, and transition metal-catalyzed reactions are summarized and discussed. Recent discovery of hypervalent catalytic systems and recyclable reagents, and the development of new enantioselective reactions using chiral hypervalent iodine compounds represent a particularly important achievement in the field of hypervalent iodine chemistry. One of the goals of this Review is to attract the attention of the scientific community as to the benefits of using hypervalent iodine compounds as an environmentally sustainable alternative to heavy metals.
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Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
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42
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Kim SM, Shin HY, Kim DW, Yang JW. Metal-Free Chemoselective Oxidative Dehomologation or Direct Oxidation of Alcohols: Implication for Biomass Conversion. CHEMSUSCHEM 2016; 9:241-245. [PMID: 26682633 DOI: 10.1002/cssc.201501359] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Indexed: 06/05/2023]
Abstract
A transition metal-free, chemoselective reaction was performed using the sodium tert-butoxide-oxygen (NaO(t) Bu-O2 ) system, resulting in either oxidative dehomologation or direct oxidation of alcohols. In particular, the newly developed protocol may be used to predict the major product formed, which depends on alkyl chain length of the alcohols and reaction conditions. The rational mechanism of this transformation was also demonstrated by performing an (18) O isotopic labelling experiment. This protocol presents a straightforward method for biomass conversion of a lignin model compound to phenol and benzoic acid.
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Affiliation(s)
- Sun Min Kim
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
| | - Hun Yi Shin
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
| | - Dong Wan Kim
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
| | - Jung Woon Yang
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea.
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43
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Dighe SU, Batra S. Visible Light-Induced Iodine-Catalyzed Transformation of Terminal Alkynes to Primary AmidesviaCC Bond Cleavage under Aqueous Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500906] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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44
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Srinivas BTV, Rawat VS, Sreedhar B. Iron-Catalyzed Dioxygenation of Alkenes and Terminal Alkynes by using (Diacetoxyiodo)benzene as Oxidant. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500681] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Yusubov MS, Zhdankin VV. Iodine catalysis: A green alternative to transition metals in organic chemistry and technology. RESOURCE-EFFICIENT TECHNOLOGIES 2015. [DOI: 10.1016/j.reffit.2015.06.001] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Amézquita-Valencia M, Achonduh G, Alper H. Pd-Catalyzed Regioselective Alkoxycarbonylation of 1-Alkenes Using a Lewis Acid [SnCl2 or Ti(O(i)Pr)4] and a Phosphine. J Org Chem 2015; 80:6419-24. [PMID: 26005796 DOI: 10.1021/acs.joc.5b00851] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The phosphine ligand mediated palladium catalyzed alkoxycarbonylation of alkenes was investigated with the objective of attaining good linear selectivity for the ester. The effect of various parameters such as solvents, additives, palladium precursors, CO pressures, and alkenes of various structural complexities were examined. The results revealed the importance of using a Lewis acid such as SnCl2 or Ti(O(i)Pr)4 in combination with a monodentate ligand such CYTOP 292 or P(p-anisyl)3 to enhance the regioselectivity for the linear isomers in the range of 70-96%.
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Affiliation(s)
- Manuel Amézquita-Valencia
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ontario K1N 6N5, Canada
| | - George Achonduh
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ontario K1N 6N5, Canada
| | - Howard Alper
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ontario K1N 6N5, Canada
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47
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Yu L, Huang Y, Bai Z, Zhu B, Ding K, Chen T, Ding Y, Wang Y. The Aerobic Oxidation and C=C Bond Cleavage of Styrenes Catalyzed by Cerium(IV) Ammonium Nitrate (CAN). J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201400421] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Sathyanarayana P, Ravi O, Muktapuram PR, Bathula SR. Copper catalyzed oxygen assisted C(CNOH)–C(alkyl) bond cleavage: a facile conversion of aryl/aralkyl/vinyl ketones to aromatic acids. Org Biomol Chem 2015; 13:9681-5. [DOI: 10.1039/c5ob01569c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An innovative Cu-catalyzed, molecular oxygen supported C(CNOH)–C(alkyl) bond cleavage reaction of aryl/aralkyl/vinyl tethered ketones for the synthesis of benzoic or acrylic acids.
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Affiliation(s)
| | - Owk Ravi
- Division of Natural Products Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Prathap Reddy Muktapuram
- Division of Natural Products Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Surendar Reddy Bathula
- Division of Natural Products Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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49
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Singh AK, Chawla R, Yadav LDS. Eosin Y catalyzed visible light mediated aerobic photo-oxidative cleavage of the C–C double bond of styrenes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.141] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Khamarui S, Maiti R, Maiti DK. General base-tuned unorthodox synthesis of amides and ketoesters with water. Chem Commun (Camb) 2015; 51:384-7. [DOI: 10.1039/c4cc07961b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We discovered a highly reactive λ3-hypervalent iodane species using an inorganic/organic base for the unorthodox synthesis of amides and ketoesters through grafting terminal alkynes. In contrast to the metal-catalyzed dehydrative approaches the in situ generated nonmetallic reagent efficiently created C–N/C–O and CO bonds with amines/alkynes and water at rt.
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Affiliation(s)
- Saikat Khamarui
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
| | - Rituparna Maiti
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
| | - Dilip K. Maiti
- Department of Chemistry
- University of Calcutta
- University College of Science
- Kolkata-700009
- India
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