1
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Non-Isocyanate Aliphatic–Aromatic Poly(carbonate‑urethane)s—An Insight into Transurethanization Reactions and Structure–Property Relationships. Int J Mol Sci 2022; 23:ijms231910999. [PMID: 36232296 PMCID: PMC9570502 DOI: 10.3390/ijms231910999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 12/02/2022] Open
Abstract
This study reveals insights into the transurethanization reactions leading to the aliphatic–aromatic non-isocyanate poly(carbonate-urethane)s (NIPCUs) and their structure–property relationships. The crucial impact of the alkyl chain length in 4,4′-diphenylmethylene bis(hydroxyalkyl carbamate) (BHAC) on the process of transurethanization reactions was proved. The strong susceptibility of hydroxyethyl- and hydroxybutyl carbamate moieties to the back-biting side reactions was observed due to the formation of thermodynamically stable cyclic products and urea bonds in the BHACs and NIPCUs. When longer alkyl chains (hydroxypentyl-, hydroxyhexyl-, or hydroxydecyl carbamate) were introduced into the BHAC structure, it was not prone to the back-biting side reaction. Both 1H and 13C NMR, as well as FT-IR spectroscopies, confirmed the presence of carbonate and urethane (and urea for some of the samples) bonds in the NIPCUs, as well as proved the lack of allophanate and ether groups. The increase in the alkyl chain length (from 5 to 10 carbon atoms) between urethane groups in the NIPCU hard segments resulted in the increase in the elongation at break and crystalline phase content, as well as the decrease in the Tg, tensile strength, and hardness. Moreover, the obtained NIPCUs exhibited exceptional mechanical properties (e.g., tensile strength of 40 MPa and elongation at break of 130%).
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2
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Tishchenko ЕА, Myznikov LV. Synthesis of Carbamoyl Azides and 1-Substituted Tetrazol-5-ones from Isocyanates and NaN3 in the Presence of ZnCl2. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222050085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Ishihara K, Shioiri T, Matsugi M. Synthesis of carbamoyl azides via the Lossen rearrangement utilizing diphenyl phosphorazidate. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Novel versatile synthesis method for amides, carbamates and ureas employing a Grignard base, an amine and an ester. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2021.100253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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5
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Wang SN, Zhang GY, Shoberu A, Zou JP. Copper-Catalyzed Coupling of Amines with Carbazates: An Approach to Carbamates. J Org Chem 2021; 86:9067-9075. [PMID: 34139836 DOI: 10.1021/acs.joc.1c01031] [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
A new approach for the preparation of carbamates via the copper-catalyzed cross-coupling reaction of amines with alkoxycarbonyl radicals generated from carbazates is described. This environmentally friendly protocol takes place under mild conditions and is compatible with a wide range of amines, including aromatic/aliphatic and primary/secondary substrates.
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Affiliation(s)
- Song-Ning Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Guo-Yu Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Adedamola Shoberu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
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6
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Sun C, Yu Y, Zhang X, Liu Y, Sun C, Kai G, Shi L, Li H. Transition-metal-free decarbonylative alkylation towards N-aryl α-hydroxy amides via triple C–C bond cleavages and their selective deuteration. Org Chem Front 2021. [DOI: 10.1039/d1qo00530h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A transition-metal-free decarbonylative alkylation reaction for the synthesis of N-aryl α-hydroxy amides via precise cleavages and reorganizations of three C–C σ bonds has been developed.
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Affiliation(s)
- Chengyu Sun
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yang Yu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiao Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yonghai Liu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chengtao Sun
- Laboratory of Medicinal Plant Biotechnology, College of pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Guoyin Kai
- Laboratory of Medicinal Plant Biotechnology, College of pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, China
| | - Lei Shi
- Huabao Flavours & Fragrances Co., Ltd., 1299 Yecheng Road, Shanghai 201822, China
| | - Hao Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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7
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Yang GP, Li K, Liu W, Zeng K, Liu YF. Copper-catalyzed aerobic oxidative C-C bond cleavage of simple ketones for the synthesis of amides. Org Biomol Chem 2020; 18:6958-6964. [PMID: 32936187 DOI: 10.1039/d0ob01601b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu-catalyzed oxidative amidation of simple ketones with amines via carbon-carbon (C-C) bond cleavage has been developed. A number of aryl and alkyl ketones could be easily converted to amides using cheap copper salt as the catalyst and O2 as the oxidant with a wide range of amines, including primary and secondary amines. This method shows a notable advantage of the broad scope for the substrate, thus providing a practical approach to amides. A plausible mechanism is proposed based on the preliminary experiments.
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Affiliation(s)
- Guo-Ping Yang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, People's Republic of China.
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8
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Rhodium-catalyzed decarbonylation cross-coupling reactions of aromatic aldehydes and arylboronic acids via C C bond activation directed by a guide group chelation. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Yang Q, Yang Z, Tan Y, Zhao J, Sun Q, Zhang H, Zhang Y. Direct C(
sp
2
)−H Amination to Synthesize Primary 3‐aminoquinoxalin‐2(1
H
)‐ones under Simple and Mild Conditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801661] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Qiming Yang
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
| | - Zibing Yang
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
| | - Yushi Tan
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
| | - Qian Sun
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
| | - Hong‐Yu Zhang
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 People's Republic of China
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10
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Sivaguru P, Wang Z, Zanoni G, Bi X. Cleavage of carbon–carbon bonds by radical reactions. Chem Soc Rev 2019; 48:2615-2656. [DOI: 10.1039/c8cs00386f] [Citation(s) in RCA: 165] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This review provides insights into the in situ generated radicals triggered carbon–carbon bond cleavage reactions.
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Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Northeast Normal University
- Changchun 130024
- China
| | - Zikun Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Northeast Normal University
- Changchun 130024
- China
| | | | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Northeast Normal University
- Changchun 130024
- China
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11
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Yu TY, Zheng ZJ, Dang TT, Zhang FX, Wei H. Synthesis of Acyl Azides from 1,3-Diketones via Oxidative Cleavage of Two C–C Bonds. J Org Chem 2018; 83:10589-10594. [DOI: 10.1021/acs.joc.8b01417] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tian-Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Zhao-Jing Zheng
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Tong-Tong Dang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Fang-Xia Zhang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P.R. China
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12
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Wu S, Luo S, Guo W, Wang T, Xie Q, Wang J, Liu G. Direct Conversion of Ethyl Ketone to Alkyl Ketone via Chelation-Assisted Rhodium(I)-Catalyzed Carbon–Carbon Bond Cleavage: Ligands Play an Important Role in the Inhibition of β-Hydrogen Elimination. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shutao Wu
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Siyuan Luo
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Weijie Guo
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Tao Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Qingxiao Xie
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Jianhui Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 30072, People’s Republic of China
| | - Guiyan Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic−Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
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13
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Maity R, Naskar S, Das I. Copper(II)-Catalyzed Reactions of α-Keto Thioesters with Azides via C-C and C-S Bond Cleavages: Synthesis of N-Acylureas and Amides. J Org Chem 2018; 83:2114-2124. [PMID: 29393648 DOI: 10.1021/acs.joc.7b03054] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cu(II)-catalyzed reaction of α-keto thioesters with trimethylsilyl azide (TMSN3) proceeds with the transformation of the thioester group into urea through C-C and C-S bond cleavages, constituting a practical and straightforward synthesis of N-acylureas. When diphenyl phosphoryl azide (DPPA) is used instead as the azide source in an aqueous environment, primary amides are formed via substitution of the thioester group. The reactions are proposed to proceed through Curtius rearrangement of the initially formed α-keto acyl azide to generate an acyl isocyanate intermediate, which reacts further with an additional amount of azide or water and rearranges to afford the corresponding products. To demonstrate the potentiality of the method, one-step syntheses of pivaloylurea and isovaleroylurea, displaying anticonvulsant activities, have been carried out.
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Affiliation(s)
- Rajib Maity
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Kolkata, West Bengal 700 032, India
| | - Sandip Naskar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Kolkata, West Bengal 700 032, India
| | - Indrajit Das
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology , 4, Raja S. C. Mullick Road, Kolkata, West Bengal 700 032, India
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14
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Guo W, Wu S, Wang T, Xie Q, Duan Y, Luo S, Wang J, Yu X. Rhodium-catalyzed decarbonylative cycloadditions of 1H-indene-1,2,3-triones and alkynes via direct C–C bond activation: divergent synthesis of indenones and quinones. Org Chem Front 2018. [DOI: 10.1039/c8qo00186c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A one-step preparation method for indenone and quinone derivatives via rhodium-mediated [5 + 2 − 2] and [5 + 2 − 1] decarbonylative cycloadditions of 1H-indene-1,2,3-triones and alkynes has been achieved.
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Affiliation(s)
- Weijie Guo
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Shutao Wu
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Tao Wang
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Qingxiao Xie
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Yulian Duan
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Siyuan Luo
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Jianhui Wang
- Department of Chemistry
- College of Science
- Tianjin University
- Tianjin
- P. R. China
| | - Xiaobo Yu
- College of Materials Science and Engineering
- Jilin Institute of Chemical Technology
- Jilin City
- P. R. China
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15
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Iron-catalyzed C C bond activation/C O bond formation: Direct conversion of ketones to esters. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.10.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Song S, Feng P, Zou M, Jiao N. KI Catalyzed Nitrogenation of Aldehydes and Alcohols: Direct Synthesis of Carbamoyl Azides and Ureas. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600914] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Song Song
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences, Peking University; Beijing 100191 China
| | - Peng Feng
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences, Peking University; Beijing 100191 China
| | - Miancheng Zou
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences, Peking University; Beijing 100191 China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs; School of Pharmaceutical Sciences, Peking University; Beijing 100191 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; East China Normal University; Shanghai 200062 China
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17
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Affiliation(s)
- Dayun Huang
- Department of Chemistry; Lishui University; Lishui 323000 People's Republic of China
| | - Guobing Yan
- Department of Chemistry; Lishui University; Lishui 323000 People's Republic of China
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18
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Babu SS, Shanmugam S. CAN-Supported Chemoselective Oxidative Conversion of α-Aroylketene-(S,S)-acetals to Aryl Carboxylic Acids. ChemistrySelect 2017. [DOI: 10.1002/slct.201700107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Sivakumar Shanmugam
- Department of Organic Chemistry; School of Chemistry, Madurai Kamaraj University; Madurai 625021 India
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19
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Liu H, Wang M, Li H, Luo N, Xu S, Wang F. New protocol of copper-catalyzed oxidative C(CO) C bond cleavage of aryl and aliphatic ketones to organic acids using O2 as the terminal oxidant. J Catal 2017. [DOI: 10.1016/j.jcat.2016.12.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Zhou PJ, Li CK, Zhou SF, Shoberu A, Zou JP. Copper-catalyzed TEMPO oxidative cleavage of 1,3-diketones and β-keto esters for the synthesis of 1,2-diketones and α-keto esters. Org Biomol Chem 2017; 15:2629-2637. [DOI: 10.1039/c7ob00241f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper-catalyzed, TEMPO oxidized cleavage of α-methylene of 1,3-diketones and β-keto esters to form 1,2-diketones and α-keto esters.
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Affiliation(s)
- Peng-Jun Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
| | - Cheng-Kun Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
| | - Shao-Fang Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
| | - Adedamola Shoberu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry and Chemical Engineering
- Soochow University
- Suzhou
- China
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21
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Wan H, Li H, Xu J, Wu Z, Liu Q, Chu X, Abe M, Bégué D, Zeng X. N-Methylcarbamoyl azide: spectroscopy, X-ray structure and decomposition via methylcarbamoyl nitrene. Org Chem Front 2017. [DOI: 10.1039/c7qo00277g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Methylcarbamoyl azide has been characterized and the nitrene intermediate in its Curtius-rearrangement has been observed in two conformations by matrix-isolation IR and EPR spectroscopy.
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Affiliation(s)
- Huabin Wan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Hongmin Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Jian Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Zhuang Wu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Qifan Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Xianxu Chu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Manabu Abe
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Didier Bégué
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)
- Université de Pau et des Pays de l'Adour
- Pau
- France
| | - Xiaoqing Zeng
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
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22
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He Y, Tian MM, Zhang XY, Fan XS. Synthesis of 4-Oxo-but-2-enals throughtBuONO and TEMPO-Promoted Cascade Reactions of Homoallylic Alcohols. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600312] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yan He
- School of Environment; School of Chemistry and Chemical Engineering; Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control; Ministry of Education; Henan Normal University; 46 Jianshe Road Xinxiang Henan 453007 P. R. China
| | - Miao-Miao Tian
- School of Environment; School of Chemistry and Chemical Engineering; Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control; Ministry of Education; Henan Normal University; 46 Jianshe Road Xinxiang Henan 453007 P. R. China
| | - Xin-Ying Zhang
- School of Environment; School of Chemistry and Chemical Engineering; Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control; Ministry of Education; Henan Normal University; 46 Jianshe Road Xinxiang Henan 453007 P. R. China
| | - Xue-Sen Fan
- School of Environment; School of Chemistry and Chemical Engineering; Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals; Key Laboratory of Green Chemical Media and Reactions; Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control; Ministry of Education; Henan Normal University; 46 Jianshe Road Xinxiang Henan 453007 P. R. China
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23
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Visible light induced azidation of aldehydic C–H with carbon tetrabromide and sodium azide. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.098] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Yu X, Wang J, Guo W, Tian Y, Wang J. Efficient Approach To Construct Unsymmetrical Biaryls through Oxidative Coupling Reactions of Aromatic Primary Alcohols and Arylboronic Acids with a Rhodium Catalyst. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00238] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiaobo Yu
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
- College
of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, People’s Republic of China
| | - Jingjing Wang
- College
of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, People’s Republic of China
| | - Weijie Guo
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yun Tian
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Jianhui Wang
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
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25
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Li H, Wan H, Wu Z, Li D, Bégué D, Wentrup C, Zeng X. Direct Observation of Carbamoylnitrenes. Chemistry 2016; 22:7856-62. [DOI: 10.1002/chem.201600824] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Hongmin Li
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Huabin Wan
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Zhuang Wu
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Dingqing Li
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Didier Bégué
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM); Université de Pau et des Pays de l'Adour; 64000 Pau France
| | - Curt Wentrup
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane, Queensland Australia
| | - Xiaoqing Zeng
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
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26
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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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27
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Xie Z, Deng J, Qiu Z, Li J, Zhu Q. Copper-mediated C(sp3)–H azidation with Me3SiN3: synthesis of imidazoles from ketones and aldehydes. Chem Commun (Camb) 2016; 52:6467-70. [DOI: 10.1039/c6cc01863g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The efficient construction of 2,4,5-trisubstituted imidazoles, through a copper-mediated three-component reaction involving ketones, aldehydes, and Me3SiN3, has been developed.
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Affiliation(s)
- Zeqiang Xie
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Jiaojiao Deng
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
| | - Zhiping Qiu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
| | - Juan Li
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- China
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
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28
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Xie Z, Peng J, Zhu Q. Copper-mediated C(sp3)–H amination in a multiple C–N bond-forming strategy for the synthesis of N-heterocycles. Org Chem Front 2016. [DOI: 10.1039/c5qo00313j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A three-component reaction for the construction of imidazo[1,5-a]pyridines through copper-promoted C(sp3)–H amination has been developed.
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Affiliation(s)
- Zeqiang Xie
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Jiangling Peng
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
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29
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Ouyang XH, Song RJ, Liu Y, Hu M, Li JH. Copper-Catalyzed Radical [2 + 2 + 1] Annulation of Benzene-Linked 1,n-Enynes with Azide: Fused Pyrroline Compounds. Org Lett 2015; 17:6038-41. [DOI: 10.1021/acs.orglett.5b03040] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xuan-Hui Ouyang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yu Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Ming Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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30
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Nimnual P, Tummatorn J, Thongsornkleeb C, Ruchirawat S. Utility of Nitrogen Extrusion of Azido Complexes for the Synthesis of Nitriles, Benzoxazoles, and Benzisoxazoles. J Org Chem 2015; 80:8657-67. [DOI: 10.1021/acs.joc.5b01305] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Phongprapan Nimnual
- Program
on Chemical Biology, Center of Excellence on Environmental Health
and Toxicology (EHT), Ministry of Education, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Jumreang Tummatorn
- Program
on Chemical Biology, Center of Excellence on Environmental Health
and Toxicology (EHT), Ministry of Education, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
| | - Charnsak Thongsornkleeb
- Program
on Chemical Biology, Center of Excellence on Environmental Health
and Toxicology (EHT), Ministry of Education, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Program
on Chemical Biology, Center of Excellence on Environmental Health
and Toxicology (EHT), Ministry of Education, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
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31
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Liang Y, Liang YF, Jiao N. Cu- or Fe-catalyzed C–H/C–C bond nitrogenation reactions for the direct synthesis of N-containing compounds. Org Chem Front 2015. [DOI: 10.1039/c4qo00350k] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This tutorial account summarizes the recent progress in Cu- or Fe-catalyzed C–H/C–C bond nitrogenation reactions for the direct synthesis of N-containing compounds.
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Affiliation(s)
- Yujie Liang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yu-Feng Liang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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32
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Li T, Wang Z, Zhang M, Zhang HJ, Wen TB. Rh/Cu-catalyzed multiple C–H, C–C, and C–N bond cleavage: facile synthesis of pyrido[2,1-a]indoles from 1-(pyridin-2-yl)-1H-indoles and γ-substituted propargyl alcohols. Chem Commun (Camb) 2015; 51:6777-80. [DOI: 10.1039/c5cc01412c] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Rh/Cu-catalyzed synthesis of pyrido[2,1-a]indoles from 1-(pyridin-2-yl)-1H-indoles and γ-substituted propargyl alcohols involving multiple C–H, C–C, and C–N bond cleavage and construction is presented.
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Affiliation(s)
- Ting Li
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- P. R. China
| | - Zhen Wang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- P. R. China
| | - Mingliang Zhang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- P. R. China
| | - Hui-Jun Zhang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- P. R. China
| | - Ting-Bin Wen
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- P. R. China
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33
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Yan K, Yang D, Wei W, Li G, Sun M, Zhang Q, Tian L, Wang H. Metal-free TBHP-mediated oxidative ring openings of 2-arylimidazopyridines via regioselective cleavage of C–C and C–N bonds. RSC Adv 2015. [DOI: 10.1039/c5ra17740e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly regioselective TBHP-mediated ring opening of imidazopyridinesviacleavage of C–C and C–N bonds has been realized for the first time to afford usefulN-(pyridin-2-yl)benzamides under mild conditions.
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Affiliation(s)
- Kelu Yan
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Daoshan Yang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Wei Wei
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Guoqing Li
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Mingyang Sun
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Qingyun Zhang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Laijin Tian
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Hua Wang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
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34
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Huang X, Li X, Zou M, Song S, Tang C, Yuan Y, Jiao N. From Ketones to Esters by a Cu-Catalyzed Highly Selective C(CO)–C(alkyl) Bond Cleavage: Aerobic Oxidation and Oxygenation with Air. J Am Chem Soc 2014; 136:14858-65. [DOI: 10.1021/ja5073004] [Citation(s) in RCA: 182] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xiaoqiang Huang
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Xinyao Li
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Miancheng Zou
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Song Song
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Conghui Tang
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Yizhi Yuan
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Ning Jiao
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai 200062, China
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35
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Laha JK, Tummalapalli KSS, Gupta A. Transition-Metal-Free Tandem Oxidative Removal of Benzylic Methylene Group by C–C and C–N Bond Cleavage Followed by Intramolecular New Aryl C–N Bond Formation under Radical Conditions. Org Lett 2014; 16:4392-5. [DOI: 10.1021/ol501766m] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - K. S. Satyanarayana Tummalapalli
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Ankur Gupta
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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