1
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Afsina CMA, Aneeja T, Anilkumar G. Zinc-Catalyzed C-C Coupling Reactions. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2023_87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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2
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Regiospecific α-methylene functionalisation of tertiary amines with alkynes via Au-catalysed concerted one-proton/two-electron transfer to O 2. Nat Commun 2022; 13:6505. [PMID: 36351920 PMCID: PMC9646731 DOI: 10.1038/s41467-022-34176-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/17/2022] [Indexed: 11/11/2022] Open
Abstract
Regioselective transformations of tertiary amines, which are ubiquitously present in natural products and drugs, are important for the development of novel medicines. In particular, the oxidative α-C-H functionalisation of tertiary amines with nucleophiles via iminium cations is a promising approach because, theoretically, there is almost no limit to the type of amine and functionalisation. However, most of the reports on oxidative α-C-H functionalisations are limited to α-methyl-selective or non-selective reactions, despite the frequent appearance of α-methylene-substituted amines in pharmaceutical fields. Herein, we develop an unusual oxidative regiospecific α-methylene functionalisation of structurally diverse tertiary amines with alkynes to synthesise various propargylic amines using a catalyst comprising Zn salts and hydroxyapatite-supported Au nanoparticles. Thorough experimental investigations suggest that the unusual α-methylene regiospecificity is probably due to a concerted one-proton/two-electron transfer from amines to O2 on the Au nanoparticle catalyst, which paves the way to other α-methylene-specific functionalisations.
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3
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Yang H, Sun Z, Chen H, Mao F, Li X, Xu X. CuBr2 catalyzed alkynylation of tertiary methylamine with terminal alkyne using aqueous TBHP under mild conditions. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Yamaguchi K, Jin X, Yatabe T, Suzuki K. Development of Environmentally Friendly Dehydrogenative Oxidation Reactions Using Multifunctional Heterogeneous Catalysts. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656
| | - Xiongjie Jin
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656
| | - Takafumi Yatabe
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656
| | - Kosuke Suzuki
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656
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5
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Gao W, Tao T, Lu S, Xu S, Wu Z. Amidoxime fibers-copper–catalyzed cross-dehydrogenative coupling of N,N-dimethylanilines and aromatic terminal alkynes. JOURNAL OF CHEMICAL RESEARCH 2021. [DOI: 10.1177/1747519821997978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A heterogeneous Cu(II)-AOFs catalyst, Cu(II) supported on amidoxime fibers (AOFs), is successfully applied to the cross-dehydrogenative coupling of aromatic terminal alkynes and N,N-dimethylanilines to form propargylamines. The Cu(II)-AOFs catalyst shows high catalytic activity with the yields of the corresponding propargylamines reaching 90% at 70 °C for 4 h without the protection of an inert gas. The Cu(II)-AOFs coordinate with the imine ion intermediate generated during the reaction, making the coupling facile. X-ray photoelectron spectrometer, scanning electron microscope, and energy dispersive X-ray spectroscopy results show that Cu(II) successfully coordinates with N and O atoms on the surface of the fibers with the mutual conversion between monovalent and divalent Cu in the Cu-AOFs being the catalytically active center. The catalyst can be recycled more than four times, and the catalytic activity is not obviously reduced. This process represents a new pathway for the formation of propargylamines using a Cu(II)-AOFs catalyst.
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Affiliation(s)
- Wei Gao
- School of Chemical and Environmental Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, P.R. China
| | - Tingxian Tao
- School of Chemical and Environmental Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, P.R. China
| | - Siyu Lu
- School of Chemical and Environmental Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, P.R. China
| | - Siyi Xu
- School of Chemical and Environmental Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, P.R. China
| | - Zhichuan Wu
- School of Chemical and Environmental Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, P.R. China
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6
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Chen Y, Xia L, Chang Y, Ma W, Wang B. Application of N-Alkyl Amines as Versatile Building Blocks in Oxidative Coupling Reactions. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202009034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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7
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Zaib S, Khan I. Recent Advances in the Sustainable Synthesis of Quinazolines Using Earth-Abundant First Row Transition Metals. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200726230848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Achieving challenging molecular diversity in contemporary chemical synthesis
remains a formidable hurdle, particularly in the delivery of diversified bioactive heterocyclic
pharmacophores for drug design and pharmaceutical applications. The coupling methods that
combine a diverse range of readily accessible and commercially available pools of substrates
under the action of earth-abundant first row transition metal catalysts have certainly matured
into powerful tools, thus offering sustainable alternatives to revolutionize the organic synthesis.
This minireview highlights the successful utilization of the catalytic ability of the first
row transition metals (Mn, Fe, Ni, Cu) in the modular assembly of quinazoline heterocycle,
ubiquitously present in numerous alkaloids, commercial medicines and is associated with a
diverse range of pharmacological activities. The broad substrate scope and high functional group tolerance of the
targeted methods were extensively explored, identifying the future strategic advances in the field. The investigation
will also be exemplified with mechanistic studies as long as they are deemed necessary.
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Affiliation(s)
- Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, Pakistan
| | - Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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8
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Zhang JS, Liu L, Chen T, Han LB. Cross-Dehydrogenative Alkynylation: A Powerful Tool for the Synthesis of Internal Alkynes. CHEMSUSCHEM 2020; 13:4776-4794. [PMID: 32667732 DOI: 10.1002/cssc.202001165] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Alkynes are among the most fundamentally important organic compounds and are widely used in synthetic chemistry, biochemistry, and materials science. Thus, the development of an efficient and sustainable method for the preparation of alkynes has been a central concern in organic synthesis. Cross-dehydrogenative coupling utilizing E-H and Z-H bonds in two different molecules can avoid the need for prefunctionalization of starting materials and has become one of the most straightforward methods for the construction of E-Z chemical bonds. This Review summarizes recent progress in the preparation of internal alkynes by cross-dehydrogenative coupling with terminal alkynes.
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Affiliation(s)
- Ji-Shu Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Long Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, P. R. China
| | - Tieqiao Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, College of Chemical Engineering and Technology, Hainan University, Haikou, 570228, P. R. China
| | - Li-Biao Han
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 3058571, Japan
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9
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Ghobadi M, Pourmoghaddam Qhazvini P, Kazemi M. Catalytic application of zinc (II) bromide (ZnBr 2) in organic synthesis. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1811873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Massoud Ghobadi
- Central Laboratory, Ilam Petro Chemical Coomplex (ILPC), Chavar, Iran
| | | | - Mosstafa Kazemi
- Young Researchers and Elite Club, Ilam Branch, Islamic Azad University, Ilam, Iran
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10
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Nakai S, Yatabe T, Suzuki K, Sasano Y, Iwabuchi Y, Hasegawa J, Mizuno N, Yamaguchi K. Methyl‐Selective α‐Oxygenation of Tertiary Amines to Formamides by Employing Copper/Moderately Hindered Nitroxyl Radical (DMN‐AZADO or 1‐Me‐AZADO). Angew Chem Int Ed Engl 2019; 58:16651-16659. [DOI: 10.1002/anie.201909005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/11/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Satoru Nakai
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Takafumi Yatabe
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kosuke Suzuki
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yusuke Sasano
- Department of Organic ChemistryGraduate School of Pharmaceutical SciencesTohoku University 6-3 Aza-Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Yoshiharu Iwabuchi
- Department of Organic ChemistryGraduate School of Pharmaceutical SciencesTohoku University 6-3 Aza-Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Jun‐ya Hasegawa
- Institute for CatalysisHokkaido University Kita 21 Nishi 10, Kita-ku Sapporo 001-0021 Japan
| | - Noritaka Mizuno
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kazuya Yamaguchi
- Department of Applied ChemistrySchool of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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11
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Alonso F, Bosque I, Chinchilla R, Gonzalez-Gomez JC, Guijarro D. Synthesis of Propargylamines by Cross-Dehydrogenative Coupling. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666190916104701] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Propargylamines are versatile compounds for heterocyclic synthesis, some of which are current drugs prescribed to treat patients with Parkinson’s disease. There are different methods to synthesize propargylamines, however, modern chemistry has moved progressively to rely on new strategies that meet the principles of Green Chemistry. In this context, propargylamines are readily accessible by the cross-dehydrogenative coupling (CDC) of two C-H bonds (i.e., NCsp3-H and Csp-H bonds); surely, CDC can be considered the most atom-economic and efficient manner to form C-C bonds. The aim of this review is to provide a comprehensive survey on the synthesis of propargylamines by the CDC of amines and terminal alkynes from three fronts: (a) transition-metal homogeneous catalysis, (b) transition-metal heterogeneous catalysis and (c) photoredox catalysis. A section dealing with the asymmetric synthesis of chiral propargylamines is also included. Special attention is also devoted to the proposed reaction mechanisms.
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Affiliation(s)
- Francisco Alonso
- Instituto de Síntesis Organica and Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Irene Bosque
- Instituto de Síntesis Organica and Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Rafael Chinchilla
- Instituto de Síntesis Organica and Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - José Carlos Gonzalez-Gomez
- Instituto de Síntesis Organica and Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - David Guijarro
- Instituto de Síntesis Organica and Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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12
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Nakai S, Yatabe T, Suzuki K, Sasano Y, Iwabuchi Y, Hasegawa J, Mizuno N, Yamaguchi K. Methyl‐Selective α‐Oxygenation of Tertiary Amines to Formamides by Employing Copper/Moderately Hindered Nitroxyl Radical (DMN‐AZADO or 1‐Me‐AZADO). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Satoru Nakai
- Department of Applied Chemistry School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Takafumi Yatabe
- Department of Applied Chemistry School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kosuke Suzuki
- Department of Applied Chemistry School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yusuke Sasano
- Department of Organic Chemistry Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aza-Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Yoshiharu Iwabuchi
- Department of Organic Chemistry Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aza-Aoba, Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Jun‐ya Hasegawa
- Institute for Catalysis Hokkaido University Kita 21 Nishi 10, Kita-ku Sapporo 001-0021 Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kazuya Yamaguchi
- Department of Applied Chemistry School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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13
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Azzena U, Carraro M, Pisano L, Monticelli S, Bartolotta R, Pace V. Cyclopentyl Methyl Ether: An Elective Ecofriendly Ethereal Solvent in Classical and Modern Organic Chemistry. CHEMSUSCHEM 2019; 12:40-70. [PMID: 30246930 PMCID: PMC6391966 DOI: 10.1002/cssc.201801768] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/23/2018] [Indexed: 05/07/2023]
Abstract
Solvents represent one of the major contributions to the environmental impact of fine-chemical synthesis. As a result, the use of environmentally friendly solvents in widely employed reactions is a challenge of vast real interest in contemporary organic chemistry. Within this Review, a great variety of examples showing how cyclopentyl methyl ether has been established as particularly useful for this purpose are reported. Indeed, its low toxicity, high boiling point, low melting point, hydrophobicity, chemical stability towards a wide range of conditions, exceptional stability towards the abstraction of hydrogen atoms, relatively low latent heat of vaporization, and the ease with which it can be recovered and recycled enable its successful employment as a solvent in a wide range of synthetic applications, including organometallic chemistry, catalysis, biphasic reactions, oxidations, and radical reactions.
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Affiliation(s)
- Ugo Azzena
- Department of Chemistry and PharmacyUniversity of Sassarivia Vienna 2, I07100SassariItaly
| | - Massimo Carraro
- Department of Chemistry and PharmacyUniversity of Sassarivia Vienna 2, I07100SassariItaly
| | - Luisa Pisano
- Department of Chemistry and PharmacyUniversity of Sassarivia Vienna 2, I07100SassariItaly
| | - Serena Monticelli
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
| | - Roberta Bartolotta
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
| | - Vittorio Pace
- Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141090ViennaAustria
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14
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Biswas S, Khanna HS, Nizami QA, Caldwell DR, Cavanaugh KT, Howell AR, Raman S, Suib SL, Nandi P. Heterogeneous Catalytic Oxidation of Amides to Imides by Manganese Oxides. Sci Rep 2018; 8:13649. [PMID: 30206248 PMCID: PMC6134084 DOI: 10.1038/s41598-018-31729-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 08/23/2018] [Indexed: 11/23/2022] Open
Abstract
Herein, we report a one-step peroxide mediated heterogeneous catalytic oxidation of amides to imides utilizing a series of manganese oxides. Among them, Cs/Mn2O3 was found to be the most active catalyst for the selective partial oxidation of N-benzylbenzamide to diphenyl imide. We have been able to apply an optimized oxidation method to other aromatic substrates. The feasibility of using air as an oxidant, the heterogeneous nature, inexpensive catalytic materials, respectable turnover numbers, and chemoselectivity to imides make this methodology an attractive choice for functional group transformations of amides to imides.
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Affiliation(s)
- Sourav Biswas
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Harshul S Khanna
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Quddus A Nizami
- Corporate Strategic Research, ExxonMobil Research and Engineering Company, 1545 US 22 East, Annandale, NJ, 08801, USA
| | - Donald R Caldwell
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | | | - Amy R Howell
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Sumathy Raman
- Corporate Strategic Research, ExxonMobil Research and Engineering Company, 1545 US 22 East, Annandale, NJ, 08801, USA
| | - Steven L Suib
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA.
| | - Partha Nandi
- Corporate Strategic Research, ExxonMobil Research and Engineering Company, 1545 US 22 East, Annandale, NJ, 08801, USA.
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15
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Li B, Li C, Tian L, Zhou J, Huang J, Meng X. Heterogeneous oxidative synthesis of quinazolines over OMS-2 under ligand-free conditions. NEW J CHEM 2018. [DOI: 10.1039/c8nj02551g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OMS-2 is employed to synthesize heterocycles through selective oxidation without the help of ligands.
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Affiliation(s)
- Bo Li
- Lanzhou Petrochemical Research Center
- PetroChina
- China
| | - Changming Li
- Lanzhou Petrochemical Research Center
- PetroChina
- China
| | - Liang Tian
- Lanzhou Petrochemical Research Center
- PetroChina
- China
| | - Jinbo Zhou
- Lanzhou Petrochemical Research Center
- PetroChina
- China
| | | | - Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
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16
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Ma L, Shi X, Li X, Shi D. Iron-catalyzed alkynylation of tertiary aliphatic amines with 1-iodoalkynes to synthesize propargylamines. Org Chem Front 2018. [DOI: 10.1039/c8qo01028e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An alkynylation of tertiary aliphatic amines with 1-iodoalkynes has been developed in the presence of FeCl2 as a catalyst and tert-butyl hydroperoxide as an oxidant.
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Affiliation(s)
- Lina Ma
- CAS Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071
- China
| | - Xiaolin Shi
- CAS Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071
- China
| | - Xiaowei Li
- CAS Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071
- China
| | - Dayong Shi
- CAS Key Laboratory of Experimental Marine Biology
- Institute of Oceanology
- Chinese Academy of Sciences
- Qingdao 266071
- China
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17
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Meng X, Wang Y, Chen B, Chen G, Jing Z, Zhao P. OMS-2/H2O2/Dimethyl Carbonate: An Environmentally-Friendly Heterogeneous Catalytic System for the Oxidative Synthesis of Benzoxazoles at Room Temperature. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00315] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xu Meng
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Yuanguang Wang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Baohua Chen
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou, 730000, P. R. China
| | - Gexin Chen
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Zhenqiang Jing
- Suzhou Institute of Nano-Tech and Nano-Bionic (SINANO), Chinese Academy of Sciences, Suzhou 215123, P. R. China
| | - Peiqing Zhao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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18
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Hsieh YY, Raja A, Hong BC, Kotame P, Chang WC, Lee GH. Organocatalytic Enantioselective Michael–Acetalization–Henry Reaction Cascade of 2-Hydroxynitrostyrene and 5-Oxohexanal for the Entry to the Hexahydro-6H-benzo[c]chromenones with Four Consecutive Stereogenic Centers and an Approach to Aflatoxin Analogues. J Org Chem 2017; 82:12840-12848. [DOI: 10.1021/acs.joc.7b02178] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yu-You Hsieh
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, R.O.C
| | - Arun Raja
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, R.O.C
| | - Bor-Cherng Hong
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, R.O.C
| | - Prakash Kotame
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, R.O.C
| | - Wan-Chen Chang
- Department
of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Instrumentation
Center, National Taiwan University, Taipei 106, Taiwan, R.O.C
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19
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Meng X, Bi X, Wang Y, Chen G, Chen B, Jing Z, Zhao P. Heterogeneous selective synthesis of 1,2-dihydro-1,3,5-triazines from alcohols and amidines via Cu/OMS-2-catalyzed multistep oxidation. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2016.10.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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20
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Meng X, Zhang J, Chen B, Jing Z, Zhao P. Copper supported on H+-modified manganese oxide octahedral molecular sieves (Cu/H-OMS-2) as a heterogeneous biomimetic catalyst for the synthesis of imidazo[1,2-a]-N-heterocycles. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01433f] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A combination of Cu and H-OMS-2 is employed to synthesize heterocycles through multistep oxidation under a low-energy pathway.
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Affiliation(s)
- Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Jinqi Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Zhenqiang Jing
- Suzhou Institute of Nano-Tech and Nano-Bionic (SINANO)
- Chinese Academy of Sciences
- Suzhou 215123
- China
| | - Peiqing Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Suzhou Research Institute of LICP
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
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21
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Alonso F, Arroyo A, Martín-García I, Moglie Y. Cross-Dehydrogenative Coupling of Tertiary Amines and Terminal Alkynes Catalyzed by Copper Nanoparticles on Zeolite. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500787] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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22
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Iminoiodane- and Brønsted base-mediated cross dehydrogenative coupling of cyclic ethers with 1,3-dicarbonyl compounds. Molecules 2015. [PMID: 26205058 PMCID: PMC6332110 DOI: 10.3390/molecules200713336] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A one-pot, two-step approach to prepare 2-tetrahydrofuran and -pyran substituted 1,3-dicarbonyl compounds by PhI=NTs-mediated amination/Brønsted base-catalyzed cross dehydrogenative coupling (CDC) reaction of the cyclic ether and 1,3-dicarbonyl derivative under mild conditions is reported. The reaction is compatible with a variety of cyclic ethers and 1,3-dicarbonyl compounds, affording the corresponding coupled products in moderate to good yields of up to 80% over two steps.
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23
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Meng X, Yu C, Chen G, Zhao P. Heterogeneous biomimetic aerobic synthesis of 3-iodoimidazo[1,2-a]pyridines via CuOx/OMS-2-catalyzed tandem cyclization/iodination and their late-stage functionalization. Catal Sci Technol 2015. [DOI: 10.1039/c4cy00919c] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Heterogeneous catalysis performs well in biomimetic oxidation to generate a low-energy pathway for the synthesis of 3-iodoimidazo[1,2-a]pyridines.
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Affiliation(s)
- Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
| | - Chaoying Yu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
| | - Gexin Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
| | - Peiqing Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- PR China
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24
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Zhang J, Meng X, Yu C, Chen G, Zhao P. Heterogeneous Cu/OMS-2 as an efficient catalyst for the synthesis of tetrasubstituted 1,4-enediones and 4H-pyrido[1,2-a]-pyrimidin-4-ones. RSC Adv 2015. [DOI: 10.1039/c5ra17351e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Copper supported on OMS-2: a heterogeneous catalyst Cu/OMS-2 was prepared for the synthesis of tetrasubstituted 1,4-enediones and 4H-pyrido[1,2-a]-pyrimidin-4-ones under the same conditions with air as the oxidant.
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Affiliation(s)
- Jinqi Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Chaoying Yu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Gexin Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Peiqing Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics (LICP)
- Chinese Academy of Sciences
- Lanzhou 730000
- China
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