1
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Xiao WG, Xuan B, Xiao LJ, Zhou QL. Practical synthesis of allylic amines via nickel-catalysed multicomponent coupling of alkenes, aldehydes, and amides. Chem Sci 2023; 14:8644-8650. [PMID: 37592986 PMCID: PMC10430692 DOI: 10.1039/d3sc03233g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 07/21/2023] [Indexed: 08/19/2023] Open
Abstract
Molecules with an allylic amine motif provide access to important building blocks and versatile applications of biologically relevant chemical space. The need for diverse allylic amines requires the development of increasingly general and modular multicomponent reactions for allylic amine synthesis. Herein, we report an efficient catalytic multicomponent coupling reaction of simple alkenes, aldehydes, and amides by combining nickel catalysis and Lewis acid catalysis, thus providing a practical, environmentally friendly, and modular protocol to build architecturally complex and functionally diverse allylic amines in a single step. The method is remarkably simple, shows broad functional-group tolerance, and facilitates the synthesis of drug-like allylic amines that are not readily accessible by other methods. The utilization of accessible starting materials and inexpensive Ni(ii) salt as the alternative precatalyst offers a significant practical advantage. In addition, the practicality of the process was also demonstrated in an efficient, gram-scale preparation of the prostaglandin agonist.
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Affiliation(s)
- Wei-Guo Xiao
- State Key Laboratory, Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University Tianjin 300071 China
| | - Bin Xuan
- State Key Laboratory, Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University Tianjin 300071 China
| | - Li-Jun Xiao
- State Key Laboratory, Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University Tianjin 300071 China
| | - Qi-Lin Zhou
- State Key Laboratory, Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University Tianjin 300071 China
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2
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Litim Z, Slimi H, Ollevier T, Kraïem J. Eco-friendly and efficient catalyst-free synthesis of N-sulfonylimines from sulfonamides and aldehydes: crucial role of Al 2O 3 as a reusable dehydrating agent. RSC Adv 2023; 13:4431-4435. [PMID: 36760303 PMCID: PMC9892885 DOI: 10.1039/d2ra08304c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
A green synthetic method for the synthesis of N-sulfonylimines was developed involving the straightforward condensation of sulfonamides with aldehydes under green and catalyst-free conditions, mediated by neutral Al2O3 as an efficient and reusable dehydrating agent. N-Sulfonylimines were produced in high yields and purity under simple experimental procedures.
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Affiliation(s)
- Zaineb Litim
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir Rue Avicenne 5000 Monastir Tunisia
| | - Hanen Slimi
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir Rue Avicenne 5000 Monastir Tunisia .,Département de Chimie, Université Laval 1045 Avenue de la Médecine Québec Québec G1V 0A6 Canada
| | - Thierry Ollevier
- Département de Chimie, Université Laval 1045 Avenue de la Médecine Québec Québec G1V 0A6 Canada
| | - Jamil Kraïem
- Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments, Faculté de Pharmacie de Monastir, Université de Monastir Rue Avicenne 5000 Monastir Tunisia
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3
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Hopkins MD, Abebe FA, Scott KA, Ozmer GL, Sheir AA, Schroeder LJ, Sheaff RJ, Lamar AA. Synthesis and identification of heteroaromatic N-benzyl sulfonamides as potential anticancer agents. Org Biomol Chem 2019; 17:8391-8402. [PMID: 31469373 DOI: 10.1039/c9ob01694e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sulfonamides are a crucial class of bioisosteres that are prevalent in a wide range of pharmaceuticals, however, the available methods for their production directly from heteroaryl aldehyde reagents remains surprisingly limited. A new approach for regioselective incorporation of a sulfonamide unit to heteroarene scaffolds has been developed and is reported within. As a result, a variety of primary benzylic N-alkylsulfonamides have been prepared via a two-step (one pot) formation from the in situ reduction of an intermediate N-sulfonyl imine under mild, practical conditions. The compounds have been screened against a variety of cell lines for cytotoxicity effects using a Cell Titer Blue assay. The cell viability investigation identifies a subset of N-benzylic sulfonamides derived from the indole scaffold to be targeted for further development into novel molecules with potential therapeutic value. The most cytotoxic of the compounds prepared, AAL-030, exhibited higher potency than other well-known anticancer agents Indisulam and ABT-751.
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Affiliation(s)
- Megan D Hopkins
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Felagot A Abebe
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Kristina A Scott
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Garett L Ozmer
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Alec A Sheir
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Lucas J Schroeder
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Robert J Sheaff
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
| | - Angus A Lamar
- Department of Chemistry and Biochemistry, The University of Tulsa, 800 South Tucker Drive, Tulsa, Oklahoma 74104, USA.
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4
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Soliman HA, El-Shahat M, Soliman AG. Silica-supported Zinc Chloride (ZnCl2/SiO2)-induced Efficient Protocol for the Synthesis of N-sulfonyl imines and 2-Arylbenzothiazole. LETT ORG CHEM 2019. [DOI: 10.2174/1570178615666181025120307] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A straightforward strategy for the synthesis of N-sulfonyl imine derivatives from sulfonamides and aryl aldehydes utilizing Silica-supported zinc chloride (ZnCl2/SiO2, silzic) as a catalyst under solvent-free conditions has been developed. 2-Arylbenzothiazole derivatives were also synthesized by the reaction of 2-aminothiophenol with aryl aldehydes under the same conditions. This procedure has advantages of high yields, mild reaction condition, simple procedure, low cost, and simplicity of workup. The catalyst has the same efficiency on its reuse up to three times.
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Affiliation(s)
- Hanan A. Soliman
- Photochemistry Department, National Research Centre, Dokki, Cairo, Egypt
| | - Mahmoud El-Shahat
- Photochemistry Department, National Research Centre, Dokki, Cairo, Egypt
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5
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Visible-Light, Iodine-Promoted Formation of N-Sulfonyl Imines and N-Alkylsulfonamides from Aldehydes and Hypervalent Iodine Reagents. Molecules 2018; 23:molecules23081838. [PMID: 30042326 PMCID: PMC6222766 DOI: 10.3390/molecules23081838] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 07/18/2018] [Accepted: 07/21/2018] [Indexed: 01/08/2023] Open
Abstract
Alternative synthetic methodology for the direct installation of sulfonamide functionality is a highly desirable goal within the domain of drug discovery and development. The formation of synthetically valuable N-sulfonyl imines from a range of aldehydes, sulfonamides, and PhI(OAc)₂ under practical and mild reaction conditions has been developed. According to mechanistic studies described within, the reaction proceeds through an initial step involving a radical initiator (generated either by visible-light or heat) to activate the reacting substrates. The reaction provides a synthetically useful and operationally simple, relatively mild alternative to the traditional formation of N-sulfonyl imines that utilizes stable, widely available reagents.
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6
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Karpowicz R, Lewkowski J, Stasiak M, Czopor A, Tokarz P, Król A, Rogacz D, Rychter P. Synthesis of novel N-(p-toluenesulfonyl)aminophosphonates and evaluation of their biological properties. PHOSPHORUS SULFUR 2018. [DOI: 10.1080/10426507.2018.1424712] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rafał Karpowicz
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka, Łódź, Poland
| | - Jarosław Lewkowski
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka, Łódź, Poland
| | - Małgorzata Stasiak
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka, Łódź, Poland
| | - Aleksandra Czopor
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka, Łódź, Poland
| | - Paulina Tokarz
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska, Łódź, Poland
| | - Adrianna Król
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska, Łódź, Poland
| | - Diana Rogacz
- Faculty of Mathematics and Natural Science, Jan Długosz University in Częstochowa, Armii Krajowej Av., Częstochowa, Poland
| | - Piotr Rychter
- Faculty of Mathematics and Natural Science, Jan Długosz University in Częstochowa, Armii Krajowej Av., Częstochowa, Poland
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7
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Zhang G, Xu S, Xie X, Ding C, Shan S. Direct synthesis of N-sulfinyl- and N-sulfonylimines via copper/l-proline-catalyzed aerobic oxidative cascade reaction of alcohols with sulfinamides or sulfonamides. RSC Adv 2017. [DOI: 10.1039/c6ra26490e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient one-pot synthesis of N-sulfinyl- and N-sulfonylimines directly from alcohols with sulfinamides or sulfonamides.
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Affiliation(s)
- Guofu Zhang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- People's Republic of China
| | - Shengjun Xu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- People's Republic of China
| | - Xiaoqiang Xie
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- People's Republic of China
| | - Chengrong Ding
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- People's Republic of China
| | - Shang Shan
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- People's Republic of China
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8
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Hopkins MD, Scott KA, DeMier BC, Morgan HR, Macgruder JA, Lamar AA. Formation of N-sulfonyl imines from iminoiodinanes by iodine-promoted, N-centered radical sulfonamidation of aldehydes. Org Biomol Chem 2017; 15:9209-9216. [DOI: 10.1039/c7ob02120h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A light-promoted, non-traditional carbonyl activation via a N-centered radical (NCR) species to produce activated imines using iminoiodinanes is reported.
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Affiliation(s)
- Megan D. Hopkins
- Department of Chemistry and Biochemistry
- The University of Tulsa
- Tulsa
- USA
| | - Kristina A. Scott
- Department of Chemistry and Biochemistry
- The University of Tulsa
- Tulsa
- USA
| | | | - Heather R. Morgan
- Department of Chemistry and Biochemistry
- The University of Tulsa
- Tulsa
- USA
| | | | - Angus A. Lamar
- Department of Chemistry and Biochemistry
- The University of Tulsa
- Tulsa
- USA
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9
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Huang D, Wang X, Wang X, Zhang J, Wang X, Hu Y. Copper(II) triflate-catalyzed and tosyl isocyanate-mediated three-step tandem synthesis of 9-arylfluorenes. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Huang D, Wang X, Wang X, Chen W, Wang X, Hu Y. Synthesis of N-Sulfonyl Arylaldimines Developed by Retesting an Old Process. Org Lett 2016; 18:604-7. [DOI: 10.1021/acs.orglett.5b03686] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Dayun Huang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xuesong Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xingyong Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Wenwen Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xinyan Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yuefei Hu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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11
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Ruengsangtongkul S, Taprasert P, Sirion U, Jaratjaroonphong J. Facile synthesis of nonsymmetrical heteroaryl-substituted triarylmethanes via the FeCl3·6H2O-catalyzed two-step Friedel–Crafts-type reaction. Org Biomol Chem 2016; 14:8493-502. [DOI: 10.1039/c6ob01638c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A mild, facile, atom economical and efficient method was described for the synthesis of functionalized nonsymmetrical heteroaryl-substituted triarylmethanes via the two step Friedel–Crafts-type reaction catalyzed by FeCl3·6H2O under “open-flask” at room temperature.
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Affiliation(s)
- S. Ruengsangtongkul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Burapha University
- Chonburi 20131
- Thailand
| | - P. Taprasert
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Burapha University
- Chonburi 20131
- Thailand
| | - U. Sirion
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Burapha University
- Chonburi 20131
- Thailand
| | - J. Jaratjaroonphong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Burapha University
- Chonburi 20131
- Thailand
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12
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Huang D, Yang W, Zhang J, Wang X, Wang X, Hu Y. Lewis acid-catalyzed tandem synthesis of 9-sulfonylamino- and 9-arylfluorenes. RSC Adv 2016. [DOI: 10.1039/c6ra03889a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Lewis acid-catalyzed three-step tandem synthesis of 9-arylfluorene was developed by simply heating a mixture of 2-formyl biphenyl, TsNCO and an arene.
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Affiliation(s)
- Dayun Huang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Weiguang Yang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Jianlan Zhang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Xuesong Wang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Xinyan Wang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Yuefei Hu
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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13
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Fan X, Zhu HB, Lv H, Guo K, Guan YH, Cui XM, An B, Pu YL. Assembly of homoallylamine derivatives through iron-catalyzed three-component sulfonamidoallylation reaction. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaohui Fan
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
- Beijing National Laboratory for Molecular Sciences (BNLMS); Beijing 100190 PR China
| | - Hong-Bo Zhu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
| | - Hao Lv
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
| | - Kun Guo
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
| | - Yong-Hong Guan
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
| | - Xiao-Meng Cui
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
| | - Bin An
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
| | - Yan-Ling Pu
- School of Chemical and Biological Engineering; Lanzhou Jiaotong University; Lanzhou 730070 PR China
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14
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Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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15
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16
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Poreddy R, García-Suárez EJ, Riisager A, Kegnæs S. Silver nanoparticles supported on alumina–a highly efficient and selective nanocatalyst for imine reduction. Dalton Trans 2014; 43:4255-9. [DOI: 10.1039/c3dt52499j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Moosavi-Zare AR, Zolfigol MA, Noroozizadeh E, Khakyzadeh V, Zare A, Tavasoli M. Di-Sulfonic Acid Imidazolium Chloroaluminate, Efficiently Catalyzed the Synthesis of N-Sulfonyl Imines in Solventless Media with High TOF. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2013.798792] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ahmad Reza Moosavi-Zare
- a Department of Chemistry , University of Sayyed Jamaleddin Asadabadi , Asadabad , 6541835583 , Iran
| | | | - Ehsan Noroozizadeh
- b Faculty of Chemistry , Bu-Ali Sina University , Hamedan , 6517838683 , Iran
| | - Vahid Khakyzadeh
- b Faculty of Chemistry , Bu-Ali Sina University , Hamedan , 6517838683 , Iran
| | - Abdolkarim Zare
- c Department of Chemistry , Payame Noor University , Tehran , Iran
| | - Mahsa Tavasoli
- b Faculty of Chemistry , Bu-Ali Sina University , Hamedan , 6517838683 , Iran
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18
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Wu XF, Petrosyan A, Ghochikyan TV, Saghyan AS, Langer P. Metal-free oxidation of benzyl amines to imines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Zolfigol MA, Tavasoli M, Moosavi-Zare AR, Arghavani-Hadi P, Zare A, Khakyzadeh V. Solvent-free synthesis of N-sulfonyl imines using WCl6 as a novel, highly efficient and reusable catalyst. RSC Adv 2013. [DOI: 10.1039/c3ra40681d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Jaafar H, Li H, Misal Castro LC, Zheng J, Roisnel T, Dorcet V, Sortais JB, Darcel C. Phosphane-Pyridine Iron Complexes: Synthesis, Characterization and Application in Reductive Amination through the Hydrosilylation Reaction. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200550] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Rajeshkumar V, Chuang SC. Evolution of Late Transition-Metal-Catalyzed Intermolecular Reductive Coupling Reaction of [60]Fullerene and N-Sulfonylaldimines: Competing Formation of Hydrobenzylated [60]Fullerenes and 1,2-Dihydrofullerene. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Cui X, Shi F, Deng Y. Oxidative imination of toluenes catalyzed by Pd–Au/silica gel under mild reaction conditions. Chem Commun (Camb) 2012; 48:7586-8. [DOI: 10.1039/c2cc31438j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Castro LCM, Sortais JB, Darcel C. NHC-carbene cyclopentadienyl iron based catalyst for a general and efficient hydrosilylation of imines. Chem Commun (Camb) 2012; 48:151-3. [DOI: 10.1039/c1cc14403k] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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24
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Cui X, Zhang C, Shi F, Deng Y. Au/Ag–Mo nano-rods catalyzed reductive coupling of nitrobenzenes and alcohols using glycerol as the hydrogen source. Chem Commun (Camb) 2012; 48:9391-3. [DOI: 10.1039/c2cc34178f] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Susanto W, Lam Y. Oxidation reactions using polymer-supported 2-benzenesulfonyl-3-(4-nitrophenyl)oxaziridine. Tetrahedron 2011; 67:8353-8359. [PMID: 32362691 PMCID: PMC7185433 DOI: 10.1016/j.tet.2011.08.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 08/04/2011] [Accepted: 08/22/2011] [Indexed: 11/24/2022]
Abstract
A thermally stable polymer-supported oxidant has been developed. Polymer-supported 2-benzenesulfonyl-3-(4-nitrophenyl)oxaziridine was applied to microwave-assisted reactions that occurred at high temperatures and was shown to oxidize alkenes, silyl enol ethers, and pyridines to the corresponding epoxides and pyridine N-oxides in excellent to good yields and with much shorter reaction times. It also enabled tetrahydrobenzimidazoles to be oxidatively rearranged to spiro fused 5-imidazolones in a more efficient manner. Recycling of the polymer-supported oxidant is also possible with minimal loss of activity after several reoxidations.
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Affiliation(s)
- Woen Susanto
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Yulin Lam
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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26
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Bézier D, Jiang F, Roisnel T, Sortais JB, Darcel C. Cyclopentadienyl-NHC Iron Complexes for Solvent-Free Catalytic Hydrosilylation of Aldehydes and Ketones. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100762] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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27
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Durán-Galván M, Connell BT. Synthesis of 2-amino-1,3-dienes by chromium-catalyzed addition of silylated propargyl bromides to imines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bézier D, Venkanna GT, Sortais JB, Darcel C. Well-Defined Cyclopentadienyl NHC Iron Complex as the Catalyst for Efficient Hydrosilylation of Amides to Amines and Nitriles. ChemCatChem 2011. [DOI: 10.1002/cctc.201100202] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ton TMU, Tejo C, Tania S, Chang JWW, Chan PWH. Iron(II)-catalyzed amidation of aldehydes with iminoiodinanes at room temperature and under microwave-assisted conditions. J Org Chem 2011; 76:4894-904. [PMID: 21524064 DOI: 10.1021/jo200284a] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A method for the amidation of aldehydes with PhI=NTs/PhI=NNs as the nitrogen source and an inexpensive iron(II) chloride + pyridine as the in situ formed precatalyst under mild conditions at room temperature or microwave assisted conditions is described. The reaction was operationally straightforward and accomplished in moderate to excellent product yields (20-99%) and with complete chemoselectivity with the new C-N bond forming only at the formylic C-H bond in substrates containing other reactive functional groups. By utilizing microwave irradiation, comparable product yields and short reaction times of 1 h could be accomplished. The mechanism is suggested to involve insertion of a putative iron-nitrene/imido group to the formylic C-H bond of the substrate via a H-atom abstraction/radical rebound pathway mediated by the precatalyst [Fe(py)(4)Cl(2)] generated in situ from reaction of FeCl(2) with pyridine.
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Affiliation(s)
- Thi My Uyen Ton
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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Castro LCM, Bézier D, Sortais JB, Darcel C. Iron Dihydride Complex as the Pre-catalyst for Efficient Hydrosilylation of Aldehydes and Ketones Under Visible Light Activation. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000676] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gowda RR, Chakraborty D. FeIII-Catalyzed Synthesis of Primary Amides from Aldehydes. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001738] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Jiang F, Bézier D, Sortais JB, Darcel C. N-Heterocyclic Carbene Piano-Stool Iron Complexes as Efficient Catalysts for Hydrosilylation of Carbonyl Derivatives. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000781] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Vovard-Le Bray C, Jiang F, Wu XF, Sortais JB, Darcel C. Cyclen-catalyzed Henry reaction under neutral conditions. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.06.106] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Patel R, Srivastava V, Yadav LD. The First Example of Saccharin-Lithium Bromide Catalysis: Direct Synthesis of N-Tosylimines from Alcohols. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000193] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kim ES, Kim YM, Kim JN. Facile Synthesis of N-Tosyl Aza-Baylis-Hillman Adducts of Acrylamide via a Pd-Catalyzed Hydration of Nitrile to Amide. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.03.700] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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