1
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Tanaka S, Yoshii Y, Hattori T. Lewis Acid-Mediated Friedel-Crafts-Type Formylation of Alkenes with Dichloromethyl Methyl Ether in the Presence of Pyridines. J Org Chem 2024; 89:3546-3551. [PMID: 38348870 DOI: 10.1021/acs.joc.3c02059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Various alkenes are formylated with dichloromethyl methyl ether (MOMCl2) by the combined use of SnCl4/2,6-dibromopyridine (B1) or AgOTf/pyridine (B4) via Friedel-Crafts-type reaction. The former reagent combination is mainly applied to α,α-diarylalkenes, while the latter one is applied not only to arylalkenes but also to some alkylalkenes. Vinyl aldehydes are exclusively obtained from alkenes that can possibly afford both allyl and vinyl aldehydes.
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Affiliation(s)
- Shinya Tanaka
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
- Environment Conservation Research Institute, Tohoku University, 6-6-04 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Yuji Yoshii
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Tetsutaro Hattori
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
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2
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Gao J, He XC, Liu YL, Yao PP, Guan JP, Chen K, Xiang HY, Yang H. Photoredox/Nickel Dual Catalysis-Enabled Aryl Formylation with 2,2-Dimethoxy- N, N-dimethylethan-1-amine as CO Source. Org Lett 2024; 26:1478-1482. [PMID: 38334422 DOI: 10.1021/acs.orglett.4c00139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Herein, a dual photoredox/nickel catalyzed formylation of aryl bromide with commercially available 2,2-dimethoxy-N,N-dimethylethan-1-amine as an effective CO source has been successfully achieved, delivering a series of aromatic aldehydes in moderate to good yields. Compared with the traditional reductive carbonylation process, this newly designed synthetic protocol provides a straightforward toolbox to access aromatic aldehydes, obviating the use of carbon monoxide and stoichiometric reductants. Finally, the utility of this direct formylation reaction was demonstrated in the pharmaceutical analogue synthesis.
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Affiliation(s)
- Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xian-Chen He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yan-Ling Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Pin-Pin Yao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jian-Ping Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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3
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Saha S, Bhosle AA, Chatterjee A, Banerjee M. Mechanochemical Duff Reaction in Solid Phase for Easy Access to Mono- and Di-formyl Electron-Rich Arenes. J Org Chem 2023; 88:10002-10013. [PMID: 37418632 DOI: 10.1021/acs.joc.3c00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
A sustainable alternative to the century-old Duff reaction was developed by adopting a solid-phase mechanochemical route. A series of mono-formyl electron-rich arenes were prepared in high yields in silica as the solid reaction media using a combination of hexamethylenetetramine (HMTA) as the formyl source and a small amount of H2SO4 in a mixer mill. The use of toxic, costly, and low-boiling trifluoroacetic acid was avoided in the new mold of the mechanochemical Duff reaction. The mono-formyl phenols were obtained with exclusive ortho-selectivity, whereas unprecedented para-formylation was observed for other electron-rich aromatics. By controlling the stoichiometry of HMTA, the method offers easy access to di-formylated phenols as well. The scalability of the reaction was validated with selected substrates at the gram-scale level. In a case study, a mechanochemical tandem reaction was explored in the synthesis of a rhodol derivative. The solvent-free, metal-free mild method of formylation, with the absence of tedious work-up steps and shorter reaction times using an inexpensive mineral acid, is a sustainable alternative to the available methods for aromatic formylation.
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Affiliation(s)
- Soumik Saha
- Department of Chemistry, BITS Pilani, K K Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
| | - Akhil A Bhosle
- Department of Chemistry, BITS Pilani, K K Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
| | - Amrita Chatterjee
- Department of Chemistry, BITS Pilani, K K Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
| | - Mainak Banerjee
- Department of Chemistry, BITS Pilani, K K Birla Goa Campus, NH 17B Bypass Road, Zuarinagar, Goa 403726, India
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4
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Gupta S, Park SE, Mozaffari S, El-Aarag B, Parang K, Tiwari RK. Design, Synthesis, and Antiproliferative Activity of Benzopyran-4-One-Isoxazole Hybrid Compounds. Molecules 2023; 28:molecules28104220. [PMID: 37241960 DOI: 10.3390/molecules28104220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
The biological significance of benzopyran-4-ones as cytotoxic agents against multi-drug resistant cancer cell lines and isoxazoles as anti-inflammatory agents in cellular assays prompted us to design and synthesize their hybrid compounds and explore their antiproliferative activity against a panel of six cancer cell lines and two normal cell lines. Compounds 5a-d displayed significant antiproliferative activities against all the cancer cell lines tested, and IC50 values were in the range of 5.2-22.2 μM against MDA-MB-231 cancer cells, while they were minimally cytotoxic to the HEK-293 and LLC-PK1 normal cell lines. The IC50 values of 5a-d against normal HEK-293 cells were in the range of 102.4-293.2 μM. Compound 5a was screened for kinase inhibitory activity, proteolytic human serum stability, and apoptotic activity. The compound was found inactive towards different kinases, while it completely degraded after 2 h of incubation with human serum. At 5 μM concentration, it induced apoptosis in MDA-MB-231 by 50.8%. Overall, these findings suggest that new benzopyran-4-one-isoxazole hybrid compounds, particularly 5a-d, are selective anticancer agents, potentially safe for human cells, and could be synthesized at low cost. Additionally, Compound 5a exhibits potential anticancer activity mediated via inhibition of cancer cell proliferation and induction of apoptosis.
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Affiliation(s)
- Shilpi Gupta
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618-1908, USA
- Department of Chemistry, Hindu College, Sonipat 131001, India
| | - Shang Eun Park
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618-1908, USA
| | - Saghar Mozaffari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618-1908, USA
| | - Bishoy El-Aarag
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618-1908, USA
- Biochemistry Division, Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Koom 32512, Egypt
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618-1908, USA
| | - Rakesh Kumar Tiwari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618-1908, USA
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5
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Li D, Wei L, Xiong W, Jiang H, Qi C. Palladium-Catalyzed Reductive Formylation of Aryl Iodides with CO 2 under Mild Conditions. J Org Chem 2023; 88:5231-5237. [PMID: 36644860 DOI: 10.1021/acs.joc.2c02576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A palladium-catalyzed reductive formylation of aryl iodides with carbon dioxide as the carbonyl source under mild reaction conditions was realized by using a combination of Pd(PCy3)2Cl2 and di-2-pyridyl ketone as the catalyst and phenylsilane as the reductive reagent, leading to a variety of aromatic aldehydes in moderate to excellent yields. The protocol features wide substrate scope, good functional group tolerance, and simple operation.
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Affiliation(s)
- Dan Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Li Wei
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wenfang Xiong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chaorong Qi
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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6
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Li H, Chen L, Wang T, Xiong F. Synthesis of Coumarin 3‐aldehyde Derivatives via Photocatalytic Cascade Radical Cyclization‐Hydrolysis. ChemistrySelect 2022. [DOI: 10.1002/slct.202200822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Haiyan Li
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Long Chen
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Tao Wang
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
- National Research Center for Carbohydrate Synthesis and Jiangxi Provincial Key Laboratory of Chemical Biology Jiangxi Normal University Nanchang 330022 P. R. China
| | - Fei Xiong
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
- National Research Center for Carbohydrate Synthesis and Jiangxi Provincial Key Laboratory of Chemical Biology Jiangxi Normal University Nanchang 330022 P. R. China
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7
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Cai M, You S, Zhang R. A Magnetically Recyclable Palladium-Catalyzed Formylation of Aryl Iodides with Formic Acid as CO Source: A Practical Access to Aromatic Aldehydes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractA magnetically recyclable palladium-catalyzed formylation of aryl iodides under CO gas-free conditions has been developed by using a bidentate phosphine ligand-modified magnetic nanoparticles-anchored palladium(II) complex [2P-Fe3O4@SiO2-Pd(OAc)2] as catalyst, yielding a wide variety of aromatic aldehydes in moderate to excellent yields. Here, formic acid was employed as both the CO source and the hydrogen donor with iodine and PPh3 as the activators. This immobilized palladium catalyst can be obtained via a simple preparative procedure and can be facilely recovered simply by using an external magnetic field, and reused at least 9 times without any apparent loss of catalytic activity.
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Affiliation(s)
- Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University
| | - Shengyong You
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University
- Institute of Applied Chemistry, Jiangxi Academy of Sciences
| | - Rongli Zhang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University
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8
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Wang J, Li D, Li J, Zhu Q. Advances in palladium-catalysed imidoylative cyclization of functionalized isocyanides for the construction of N-heterocycles. Org Biomol Chem 2021; 19:6730-6745. [PMID: 34259697 DOI: 10.1039/d1ob00864a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Palladium-catalysed isocyanide insertion reactions have witnessed great progress in recent years. In particular, imidoylative cyclization of functionalized isocyanides was successfully developed by taking advantage of the adjustable substituents on the isocyano group, opening a new avenue to access a variety of nitrogen-containing heterocycles. In this review article, we summarize the advances of functionalized isocyanide insertion reactions and highlight the breakthroughs of enantioselective palladium catalysed imidoylation reactions by using this strategy. Additionally, copper-catalysed cyclization reactions of functionalized isocyanides are briefly discussed.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Dan Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Jing Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China and University of Chinese Academy of Sciences, Beijing 100049, China and Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China.
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China and University of Chinese Academy of Sciences, Beijing 100049, China and Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China.
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9
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Weng Y, Qu J, Chen Y. Palladium-Catalyzed Allylic Carbonylative Negishi Cross-Coupling Reactions with Sterically Bulky Aromatic Isocyanides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Abstract
This review highlights the state-of-the-art advances in C(sp3)–H functionalization involving isocyanides through the synergistic combination of isocyanide insertion and C(sp3)–H bond activation.
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Affiliation(s)
- Weixiang Wang
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Tianqi Liu
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Chang-Hua Ding
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
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11
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Collet JW, Roose TR, Weijers B, Maes BUW, Ruijter E, Orru RVA. Recent Advances in Palladium-Catalyzed Isocyanide Insertions. Molecules 2020; 25:E4906. [PMID: 33114013 PMCID: PMC7660339 DOI: 10.3390/molecules25214906] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/17/2022] Open
Abstract
Isocyanides have long been known as versatile chemical reagents in organic synthesis. Their ambivalent nature also allows them to function as a CO-substitute in palladium-catalyzed cross couplings. Over the past decades, isocyanides have emerged as practical and versatile C1 building blocks, whose inherent N-substitution allows for the rapid incorporation of nitrogeneous fragments in a wide variety of products. Recent developments in palladium catalyzed isocyanide insertion reactions have significantly expanded the scope and applicability of these imidoylative cross-couplings. This review highlights the advances made in this field over the past eight years.
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Affiliation(s)
- Jurriën W. Collet
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Thomas R. Roose
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
| | - Bram Weijers
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
| | - Bert U. W. Maes
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
| | - Romano V. A. Orru
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
- Organic Chemistry, Aachen-Maastricht Institute for Biobased Materials, Maastricht University, Urmonderlaan 22, 6167 RD Geleen, The Netherlands
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12
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Wang C, Wu L, Xu W, He F, Qu J, Chen Y. Palladium-Catalyzed Secondary Benzylic Imidoylative Reactions. Org Lett 2020; 22:6954-6959. [PMID: 32808530 DOI: 10.1021/acs.orglett.0c02515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reported herein is a palladium-catalyzed secondary benzylic imidoylative Negishi reaction leveraging the sterically bulky aromatic isocyanides as the imine source. This method allows the facile access of alkyl-, (hetero)aryl-, and alkynylzinc reagents to afford various α-substituted phenylacetone products under mild acidic hydrolysis, which are ubiquitous motifs in many pharmaceuticals and biologically active compounds. The diastereoselective reduction of imine can be accomplished to provide the expedient conversion of secondary benzylic halide into α-substituted phenethylamine derivatives with high atom economy.
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Affiliation(s)
- Chenglong Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Licheng Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Wentao Xu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Feng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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13
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Wang Y, Huang W, Wang C, Qu J, Chen Y. Nickel-Catalyzed Formal Aminocarbonylation of Secondary Benzyl Chlorides with Isocyanides. Org Lett 2020; 22:4245-4249. [PMID: 32383891 DOI: 10.1021/acs.orglett.0c01284] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Phenylacetamides represent versatile feedstocks in synthetic chemistry, widely existing in drug molecules and natural products. Herein, we disclose a nickel-catalyzed formal aminocarbonylation of secondary benzyl chlorides with isocyanides yielding α-substituted phenylacetamide with steric hindrance, which is synthetically challenging via palladium-catalyzed aminocarbonylation. The reaction features wide functional group tolerance under mild conditions, highlighted by the tolerance of various aromatic halide (-Cl, -Br, -I) and heteroaromatic rings (pyridine and pyrazine).
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Affiliation(s)
- Yun Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology 130 Meilong Road, Shanghai 200237, China
| | - Wenyi Huang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology 130 Meilong Road, Shanghai 200237, China
| | - Chenglong Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology 130 Meilong Road, Shanghai 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology 130 Meilong Road, Shanghai 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology 130 Meilong Road, Shanghai 200237, China
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14
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Wang J, Liu Y, Xiong Z, Zhong L, Ding S, Li L, Zhao H, Chen C, Shang Y. Palladium-catalysed dearomative aryl/cycloimidoylation of indoles. Chem Commun (Camb) 2020; 56:3249-3252. [PMID: 32108847 DOI: 10.1039/d0cc00402b] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first example of a dearomative palladium-catalysed isocyanide insertion reaction has been developed using functionalized isocyanides as the reaction partner of N-(2-bromobenzoyl)indoles. The imidoyl-palladium intermediate generated by tandem indole double bond/isocyanide insertion reactions could be trapped by intramolecular functional groups such as the C(sp2)-H bond and alkenes, affording diversified indoline derivatives bearing C3 imine-containing heterocycles. The dearomative aryl/cycloimidoylation of indoles proceeded smoothly in good to excellent yields with a wide functional group tolerance.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yuan Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ling Zhong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Lianjie Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Haixia Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Chen Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
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15
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Nickel-catalyzed allylic carbonylative coupling of alkyl zinc reagents with tert-butyl isocyanide. Nat Commun 2020; 11:392. [PMID: 31959753 PMCID: PMC6971256 DOI: 10.1038/s41467-020-14320-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/17/2019] [Indexed: 11/24/2022] Open
Abstract
Transition metal-catalyzed carbonylation with carbon nucleophiles is one of the most prominent methods to construct ketones, which are highly versatile motifs prevalent in a variety of organic compounds. In comparison to the well-established palladium catalytic system, the nickel-catalyzed carbonylative coupling is much underdeveloped due to the strong binding affinity of CO to nickel. By leveraging easily accessible tert-butyl isocyanide as the CO surrogate, we present a nickel-catalyzed allylic carbonylative coupling with alkyl zinc reagent, allowing for the practical and straightforward preparation of synthetically important β,γ-unsaturated ketones in a linear-selective fashion with excellent trans-selectivity under mild conditions. Moreover, the undesired polycarbonylation process which is often encountered in palladium chemistry could be completely suppressed. This nickel-based method features excellent functional group tolerance, even including the active aryl iodide functionality to allow the orthogonal derivatization of β,γ-unsaturated ketones. Preliminary mechanistic studies suggest that the reaction proceeds via a π-allylnickel intermediate. In contrast to the well-established palladium-catalyzed version, the nickel-catalyzed carbonylative coupling is underdeveloped. Here the authors report a nickel-catalyzed allylic carbonylative coupling with alkyl zinc reagents, allowing for preparation of β,γ-unsaturated ketones in a linear-selective fashion.
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16
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Xiong Z, Cai P, Mei Y, Wang J. Access to 1-amino-3,4-dihydroisoquinolines via palladium-catalyzed C-H bond aminoimidoylation reaction from functionalized isocyanides. RSC Adv 2019; 9:42072-42076. [PMID: 35542878 PMCID: PMC9076523 DOI: 10.1039/c9ra09139d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/12/2019] [Indexed: 01/24/2023] Open
Abstract
Efficient access to 1-amino-3,4-dihydroisoquinolines, through palladium-catalyzed intramolecular C-H bond aminoimidoylation of α-benzyl-α-isocyanoacetates, has been developed. Consecutive isocyanide insertion and C-H bond activation were realized with C-N and C-C bonds formation in one step under redox neutral conditions, employing O-benzoyl hydroxylamines as electrophilic amino sources.
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Affiliation(s)
- Zhuang Xiong
- School of Biotechnology and Sciences, Wuyi University Jiangmen Guangdong 529090 P. R. China
| | - Panyuan Cai
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 P. R. China
| | - Yingshuang Mei
- School of Biotechnology and Sciences, Wuyi University Jiangmen Guangdong 529090 P. R. China
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 P. R. China
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17
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A 16-step synthesis of the isoryanodane diterpene (+)-perseanol. Nature 2019; 573:563-567. [PMID: 31554978 PMCID: PMC7123484 DOI: 10.1038/s41586-019-1580-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 07/15/2019] [Indexed: 12/21/2022]
Abstract
(+)-Perseanol is an isoryanodane diterpene with potent antifeedant and insecticidal properties isolated from the tropical shrub Persea indica.1 It is structurally related to (+)-ryanodine, a high affinity ligand and modulator of ryanodine receptors (RyRs)—ligand-gated ion channels critical for intracellular Ca2+ signaling in vertebrates and invertebrates.2 Whereas ryanodine modulates RyR-dependent Ca2+ release across many organisms, including mammals, preliminary data indicate that ryanodane and isoryanodane congeners that lack the pyrrole-2-carboxylate ester, such as perseanol, may have selective activity in insects.3 Here we report the first chemical synthesis of (+)-perseanol, which proceeds in 16 steps from commercially available (R)-pulegone. The synthesis features a two-step annulation process that rapidly assembles the tetracyclic core from readily accessible cyclopentyl building blocks. This work demonstrates how convergent fragment coupling, when combined with strategic oxidation tactics, can enable the concise synthesis of complex and highly oxidized diterpene natural products.
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18
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Chia PW, Yong FSJ, Mohamad H, Kan S. Cyanation of Anilines to Aryl Nitriles Using
tert
‐Butyl Isocyanide: A Simple and Copper‐free Procedure. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Poh Wai Chia
- Faculty of Science and Marine EnvironmentUniversiti Malaysia Terengganu Malaysia
- Institute of Marine BiotechnologyUniversiti Malaysia Terengganu Terengganu Malaysia
| | - Fu Siong Julius Yong
- Institute of Marine BiotechnologyUniversiti Malaysia Terengganu Terengganu Malaysia
| | - Habsah Mohamad
- Institute of Marine BiotechnologyUniversiti Malaysia Terengganu Terengganu Malaysia
| | - Su‐Yin Kan
- Faculty of Health SciencesUniversiti Sultan Zainal Abidin Kuala Nerus Malaysia
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19
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Dechert-Schmitt AM, Garnsey MR, Wisniewska HM, Murray JI, Lee T, Kung DW, Sach N, Blackmond DG. Highly Modular Synthesis of 1,2-Diketones via Multicomponent Coupling Reactions of Isocyanides as CO Equivalents. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00581] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Michelle R. Garnsey
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Hanna M. Wisniewska
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - James I. Murray
- Department of Chemistry, Scripps Research, La Jolla, California 92037, United States
| | - Taegyo Lee
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Daniel W. Kung
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Neal Sach
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Donna G. Blackmond
- Department of Chemistry, Scripps Research, La Jolla, California 92037, United States
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20
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Liu Z, Yang Z, Yu B, Yu X, Zhang H, Zhao Y, Yang P, Liu Z. Rhodium-Catalyzed Formylation of Aryl Halides with CO2 and H2. Org Lett 2018; 20:5130-5134. [DOI: 10.1021/acs.orglett.8b02027] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhenghui Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenzhen Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Bo Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaoxiao Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongye Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Peng Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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21
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Hu W, Li M, Jiang G, Wu W, Jiang H. Synthesis of 2,3-Difunctionalized Benzofuran Derivatives through Palladium-Catalyzed Double Isocyanide Insertion Reaction. Org Lett 2018; 20:3500-3503. [PMID: 29870267 DOI: 10.1021/acs.orglett.8b01277] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel palladium-catalyzed tandem cyclization of 1-(allyloxy)-2-ethynylbenzene derivatives with isocyanides in the presence of water has been developed. The key intermediates, benzofuran-3-α-carbonyl aldehydes, were obtained through a simple acid hydrolysis process and could serve as precursors for structurally diverse 2,3-difunctionalized benzofuran derivatives such as important 2-benzofurylquinoxalines, benzofuran-3-α-ketoesters and benzofuryl ynediones. This transformation features convenient operation, simple and commercially available starting materials, broad functional-group compatibility, and moderate to good reaction yields.
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Affiliation(s)
- Weigao Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Meng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Guangbin Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
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22
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Ying J, Fu LY, Zhou C, Qi X, Peng JB, Wu XF. Convenient Palladium-Catalyzed Reductive Carbonylation of Aryl Bromides Under Gas-Free Conditions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800471] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jun Ying
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou P.R. China
| | - Lu-Yang Fu
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou P.R. China
| | - Chao Zhou
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou P.R. China
| | - Xinxin Qi
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou P.R. China
| | - Jin-Bao Peng
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou P.R. China
| | - Xiao-Feng Wu
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou P.R. China
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
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23
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Zhang J, Hu Y, Wang H, Guo A, Kong J, Ma R, Wu T, Wang Y, Li LS, Mai W, Ren P, Deng X. Regioselective Functionalization of 4-Methyl-1H-indole for Scalable Synthesis of 2-Cyano-5-formyl-4-methyl-1H-indole. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.7b00370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jun Zhang
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Yun Hu
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Haiyu Wang
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Aixin Guo
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Jianshe Kong
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Rujian Ma
- WuXi AppTec Co., Ltd., 168 Nanhai Road, TEDA, Tianjin 300457, China
| | - Tao Wu
- Wellspring Biosciences
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Yi Wang
- Wellspring Biosciences
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Lian-Sheng Li
- Wellspring Biosciences
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Wanping Mai
- Kura Oncology
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Pingda Ren
- Kura Oncology
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
| | - Xiaohu Deng
- Kura Oncology
Inc., 3033 Science Park Road Suite
220, San Diego, California 92121, United States
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24
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Zhao B, Shang R, Cheng WM, Fu Y. Decarboxylative formylation of aryl halides with glyoxylic acid by merging organophotoredox with palladium catalysis. Org Chem Front 2018. [DOI: 10.1039/c8qo00253c] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Decarboxylative formylation of aryl halides with glyoxylic acid enabled by combining organophotoredox with palladium catalysis.
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Affiliation(s)
- Bin Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- Department of Chemistry
| | - Rui Shang
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- Department of Chemistry
| | - Wan-Min Cheng
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- Department of Chemistry
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- Department of Chemistry
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25
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Yang L, Wei L, Wan JP. Redox neutral [4+2] benzannulation of dienals and tertiary enaminones for benzaldehyde synthesis. Chem Commun (Camb) 2018; 54:7475-7478. [DOI: 10.1039/c8cc03514h] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The [4+2] benzannulation reactions between tertiary enaminones and dienals have been developed for the synthesis of polyfunctionalized benzaldehydes, providing a new access to benzaldehydes alongside the classical formylation strategy.
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Affiliation(s)
- Lu Yang
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Li Wei
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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26
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Chaudhary P, Korde R, Gupta S, Sureshbabu P, Sabiah S, Kandasamy J. An Efficient Metal-Free Method for the Denitrosation of Aryl N
-Nitrosamines at Room Temperature. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701047] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Priyanka Chaudhary
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
| | - Rishi Korde
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
| | - Surabhi Gupta
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
| | - Popuri Sureshbabu
- Department of Chemistry; Pondicherry University; Pondicherry- 605014
| | | | - Jeyakumar Kandasamy
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
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27
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Jiang T, Gu ZY, Yin L, Wang SY, Ji SJ. Cobalt(II)-Catalyzed Isocyanide Insertion Reaction with Sulfonyl Azides in Alcohols: Synthesis of Sulfonyl Isoureas. J Org Chem 2017; 82:7913-7919. [DOI: 10.1021/acs.joc.7b01127] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tian Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Zheng-Yang Gu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Ling Yin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
- Department
of Chemistry and Chemical Engineering, Jining University, Qufu 273155, People’s Republic of China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
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28
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Lu F, Chen Z, Li Z, Wang X, Peng X, Li C, Fang L, Liu D, Gao M, Lei A. Palladium/Copper-Catalyzed Oxidative Coupling of Arylboronic Acids with Isocyanides: Selective Routes to Amides and Diaryl Ketones. Org Lett 2017; 19:3954-3957. [PMID: 28719218 DOI: 10.1021/acs.orglett.7b01548] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient and alternative oxidative cross-coupling strategy starting from arylboronic acids and isocyanides for the selective synthesis of amides and diaryl ketones with palladium/copper catalysis is developed. Various substituted benzamides and benzophenones could be obtained in good yields. The reaction represents an efficient and alternative strategy for the synthesis of carbonyl compounds.
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Affiliation(s)
- Fangling Lu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Ziyue Chen
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Zhen Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Xiaoyan Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Xinyue Peng
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Cong Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Lingtong Fang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Dong Liu
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Meng Gao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China.,College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
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29
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Nielsen MK, Shields BJ, Liu J, Williams MJ, Zacuto MJ, Doyle AG. Mild, Redox-Neutral Formylation of Aryl Chlorides through the Photocatalytic Generation of Chlorine Radicals. Angew Chem Int Ed Engl 2017; 56:7191-7194. [PMID: 28471521 DOI: 10.1002/anie.201702079] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 04/07/2017] [Indexed: 11/05/2022]
Abstract
We report a redox-neutral formylation of aryl chlorides that proceeds through selective 2-functionalization of 1,3-dioxolane through nickel and photoredox catalysis. This scalable benchtop approach provides a distinct advantage over traditional reductive carbonylation in that no carbon monoxide, pressurized gas, or stoichiometric reductant is employed. The mild conditions give unprecedented scope from abundant and complex aryl chloride starting materials.
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Affiliation(s)
- Matthew K Nielsen
- Department of Chemistry, Princeton University, 120 Washington Road, Princeton, NJ, 08544, USA
| | - Benjamin J Shields
- Department of Chemistry, Princeton University, 120 Washington Road, Princeton, NJ, 08544, USA
| | - Junyi Liu
- Department of Chemistry, Princeton University, 120 Washington Road, Princeton, NJ, 08544, USA
| | - Michael J Williams
- Drug Substance Development, Celgene Corporation, 556 Morris Ave., Summit, NJ, 07901, USA
| | - Michael J Zacuto
- Drug Substance Development, Celgene Corporation, 556 Morris Ave., Summit, NJ, 07901, USA
| | - Abigail G Doyle
- Department of Chemistry, Princeton University, 120 Washington Road, Princeton, NJ, 08544, USA
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30
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Nielsen MK, Shields BJ, Liu J, Williams MJ, Zacuto MJ, Doyle AG. Mild, Redox-Neutral Formylation of Aryl Chlorides through the Photocatalytic Generation of Chlorine Radicals. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702079] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Matthew K. Nielsen
- Department of Chemistry; Princeton University; 120 Washington Road Princeton NJ 08544 USA
| | - Benjamin J. Shields
- Department of Chemistry; Princeton University; 120 Washington Road Princeton NJ 08544 USA
| | - Junyi Liu
- Department of Chemistry; Princeton University; 120 Washington Road Princeton NJ 08544 USA
| | - Michael J. Williams
- Drug Substance Development, Celgene Corporation; 556 Morris Ave. Summit NJ 07901 USA
| | - Michael J. Zacuto
- Drug Substance Development, Celgene Corporation; 556 Morris Ave. Summit NJ 07901 USA
| | - Abigail G. Doyle
- Department of Chemistry; Princeton University; 120 Washington Road Princeton NJ 08544 USA
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31
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Haraguchi R, Tanazawa SG, Tokunaga N, Fukuzawa SI. Palladium-Catalyzed Formylation of Arylzinc Reagents with S-Phenyl Thioformate. Org Lett 2017; 19:1646-1649. [PMID: 28276691 DOI: 10.1021/acs.orglett.7b00447] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first example of palladium-catalyzed direct formylation of arylzinc reagents using S-phenyl thioformate is reported. The reaction proceeded under mild conditions, allowing high functional group tolerance. In addition, the developed formylation method was used to prepare deuterated and 13C-labeled aryl aldehydes from isotope-labeled S-phenyl thioformates. Moreover, this procedure was applied to an alkenylzinc halide, affording the corresponding enal.
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Affiliation(s)
- Ryosuke Haraguchi
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Sho-Go Tanazawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Naoya Tokunaga
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-Ichi Fukuzawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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32
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Hojoh K, Ohmiya H, Sawamura M. Synthesis of α-Quaternary Formimides and Aldehydes through Umpolung Asymmetric Copper Catalysis with Isocyanides. J Am Chem Soc 2017; 139:2184-2187. [PMID: 28125781 DOI: 10.1021/jacs.6b12881] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly regio- and enantioselective copper-catalyzed three-component coupling of isocyanides, hydrosilanes, and γ,γ-disubstituted allylic phosphates/chlorides to afford chiral α-quaternary formimides was enabled by the combined use of our original chiral naphthol-carbene ligand as a functional Cu-supporting ligand and LiOtBu as a stoichiometric Lewis base for Si. The formimides were readily converted to α-quaternary aldehydes.
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Affiliation(s)
- Kentaro Hojoh
- Department of Chemistry, Faculty of Science, Hokkaido University , Sapporo 060-0810, Japan
| | - Hirohisa Ohmiya
- Department of Chemistry, Faculty of Science, Hokkaido University , Sapporo 060-0810, Japan
| | - Masaya Sawamura
- Department of Chemistry, Faculty of Science, Hokkaido University , Sapporo 060-0810, Japan
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33
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Huang H, Li X, Yu C, Zhang Y, Mariano PS, Wang W. Visible‐Light‐Promoted Nickel‐ and Organic‐Dye‐Cocatalyzed Formylation Reaction of Aryl Halides and Triflates and Vinyl Bromides with Diethoxyacetic Acid as a Formyl Equivalent. Angew Chem Int Ed Engl 2017; 56:1500-1505. [DOI: 10.1002/anie.201610108] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Indexed: 01/07/2023]
Affiliation(s)
- He Huang
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
| | - Xiangmin Li
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
- State Key Laboratory of Bioengineering Reactor and Shanghai Key Laboratory of New Drug DesignSchool of PharmacyEast China University of Science & Technology 130 Mei-Long Road Shanghai 200237 P.R. China
| | - Chenguang Yu
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
| | - Yueteng Zhang
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
| | - Patrick S. Mariano
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
| | - Wei Wang
- Department of Chemistry and Chemical BiologyUniversity of New Mexico Albuquerque NM 87131 USA
- State Key Laboratory of Bioengineering Reactor and Shanghai Key Laboratory of New Drug DesignSchool of PharmacyEast China University of Science & Technology 130 Mei-Long Road Shanghai 200237 P.R. China
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34
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Huang H, Li X, Yu C, Zhang Y, Mariano PS, Wang W. Visible-Light-Promoted Nickel- and Organic-Dye-Cocatalyzed Formylation Reaction of Aryl Halides and Triflates and Vinyl Bromides with Diethoxyacetic Acid as a Formyl Equivalent. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610108] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- He Huang
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131 USA
| | - Xiangmin Li
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131 USA
- State Key Laboratory of Bioengineering Reactor and Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science & Technology; 130 Mei-Long Road Shanghai 200237 P.R. China
| | - Chenguang Yu
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131 USA
| | - Yueteng Zhang
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131 USA
| | - Patrick S. Mariano
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131 USA
| | - Wei Wang
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131 USA
- State Key Laboratory of Bioengineering Reactor and Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science & Technology; 130 Mei-Long Road Shanghai 200237 P.R. China
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35
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Xiong Z, Liang D, Luo S. Palladium-catalyzed β-selective C(sp2)–H carboxamidation of enamides by isocyanide insertion: synthesis of N-acyl enamine amides. Org Chem Front 2017. [DOI: 10.1039/c7qo00049a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of N-acyl enamine amides via palladium-catalyzed alkene C–H activation and isocyanide insertion has been developed.
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Affiliation(s)
- Zhuang Xiong
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Dongdong Liang
- Department of Pharmaceutical Sciences
- University of Maryland School of Pharmacy
- Baltimore
- USA
| | - Shuang Luo
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
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36
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Liu HF, Zhu TH, Xu P, Wang SY, Ji SJ. I2/CHP mediated [1 + 1 + 1 + 1] cyclization of aromatic isocyanides with amines to construct 1,3-diazetidine-2,4-diimine derivatives. Org Biomol Chem 2017; 15:8738-8742. [DOI: 10.1039/c7ob02255g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An I2/CHP (cumene hydroperoxide) mediated [1 + 1 + 1 + 1] cyclization of aromatic isocyanides with readily accessible amines via the formation of 4 new C–N bonds has been developed to construct unsymmetric 1,3-diazetidine-2,4-diimine derivatives under mild conditions.
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Affiliation(s)
- Hai-Feng Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Tong-Hao Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Pei Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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37
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Sultane PR, Bielawski CW. Burgess Reagent Facilitated Alcohol Oxidations in DMSO. J Org Chem 2016; 82:1046-1052. [DOI: 10.1021/acs.joc.6b02629] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Prakash R. Sultane
- Center
for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - Christopher W. Bielawski
- Center
for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department
of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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38
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Fan XY, Jiang X, Zhang Y, Chen ZB, Zhu YM. Palladium-catalyzed one-pot synthesis of diazoles via tert-butyl isocyanide insertion. Org Biomol Chem 2016; 13:10402-8. [PMID: 26328529 DOI: 10.1039/c5ob01328c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient one-pot palladium-catalyzed reaction for the synthesis of diazoles from readily available hydrazides and aryl halide via isocyanide insertion/cyclization sequence has been developed. This methodology efficiently constructs diazoles in good to excellent yields with the advantages of wide functional group tolerance and operational simplicity.
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Affiliation(s)
- Xiang-Yuan Fan
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
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39
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Chang J, Liu B, Yang Y, Wang M. Pd-Catalyzed C-S Activation/Isocyanide Insertion/Hydrogenation Enables a Selective Aerobic Oxidation/Cyclization. Org Lett 2016; 18:3984-7. [PMID: 27498923 DOI: 10.1021/acs.orglett.6b01780] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Unique imidoylation of thioorganics with isocyanides endows an unprecedented aerobic oxidation process. Catalyzed by Pd(Ph3P)2Cl2 in the presence of Ph3SiH under N2 then upon exposure to air, a wide range of α-acyl ketene dithioacetals react with isocyanides to afford 5-hydroxy-α,β-unsaturated γ-lactams via a C-S bond activation, isocyanide migratory insertion, hydrogenation, selective aerobic oxidation, and intramolecular nucleophilic addition sequence.
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Affiliation(s)
- Jian Chang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Bangyu Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Yang Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University , Changchun 130024, China.,State Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian 116024, China
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40
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Wang J, Tang S, Zhu Q. Intramolecular Imidoylative Heck Reaction: Synthesis of Cyclic Ketoimines from Functionalized Isocyanide. Org Lett 2016; 18:3074-7. [DOI: 10.1021/acs.orglett.6b01174] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jian Wang
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Shi Tang
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Qiang Zhu
- State Key Laboratory of Respiratory
Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
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41
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Iranpoor N, Panahi F, Erfan S, Roozbin F. Selective and Efficient Formylation of Indoles (C3) and Pyrroles (C2) Using 2,4,6-Trichloro-1,3,5-Triazine/Dimethylformamide (TCT/DMF) Mixed Reagent. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2652] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nasser Iranpoor
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Farhad Panahi
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Soodabeh Erfan
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Fatemeh Roozbin
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
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42
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Zhu F, Li Y, Wang Z, Orru RVA, Maes BUW, Wu XF. Palladium-Catalyzed Construction of Amidines from Arylboronic Acids under Oxidative Conditions. Chemistry 2016; 22:7743-6. [PMID: 27061735 DOI: 10.1002/chem.201601262] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Indexed: 11/11/2022]
Abstract
A valuable palladium-catalyzed three-component coupling reaction for the synthesis of amidines has been developed. Using arylboronic acids, isocyanides, and anilines as the reactants under oxidative conditions, various amidines were isolated in good yields with good functional group tolerances.
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Affiliation(s)
- Fengxiang Zhu
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Yahui Li
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Zechao Wang
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Romano V A Orru
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam, Institute for Molecules, Medicines and Systems (AIMMS), VU University, Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Bert U W Maes
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.
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43
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Duan H, Chen Z, Han L, Feng Y, Zhu Y, Yang S. Palladium-catalyzed chemoselective synthesis of indane-1,3-dione derivatives via tert-butyl isocyanide insertion. Org Biomol Chem 2016; 13:6782-8. [PMID: 26007325 DOI: 10.1039/c5ob00472a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A simple and efficient strategy for the synthesis of indane-1,3-dione derivatives through a palladium(0)-catalyzed reaction incorporating tert-butyl isocyanide has been developed. In addition, by applying this protocol as the key step, indenopyrazole derivatives can be easily synthesized in high yields in a one-pot procedure. This methodology is tolerant of a wide range of substrates and applicable to library synthesis.
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Affiliation(s)
- Huaqing Duan
- College of Pharmaceutical Science, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
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44
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Chen ZB, Zhang Y, Yuan Q, Zhang FL, Zhu YM, Shen JK. Palladium-Catalyzed Synthesis of α-Iminonitriles from Aryl Halides via Isocyanide Double Insertion Reaction. J Org Chem 2016; 81:1610-6. [PMID: 26816103 DOI: 10.1021/acs.joc.5b02777] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient one-pot synthesis of α-iminonitriles from readily available aryl halides via palladium-catalyzed double isocyanide insertion and elimination has been developed, without using various hypertoxic cyanides and excess oxidants. Furthermore, the utility of this reaction was demonstrated by the rapid total synthesis of quinoxaline and the reaction of functional groups exchanged with aryl halides.
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Affiliation(s)
- Zhen-Bang Chen
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Ying Zhang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Qing Yuan
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Fang-Ling Zhang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Yong-Ming Zhu
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Jing-Kang Shen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai, 201203, China
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45
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Zhao Y, Li Z, Sharma UK, Sharma N, Song G, Van der Eycken EV. Copper-catalyzed alkylarylation of activated alkenes using isocyanides as the alkyl source: an efficient radical access to 3,3-dialkylated oxindoles. Chem Commun (Camb) 2016; 52:6395-8. [DOI: 10.1039/c6cc02024k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel copper-catalyzed oxidative cyclization of N-arylacrylamides for the synthesis of 3,3-dialkylated oxindoles is described using isocyanides as alkyl radical precursors.
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Affiliation(s)
- Yaping Zhao
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Nandini Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
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46
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Yu B, Yang Z, Zhao Y, Hao L, Zhang H, Gao X, Han B, Liu Z. An Efficient and General Method for Formylation of Aryl Bromides with CO2
and Poly(methylhydrosiloxane). Chemistry 2015; 22:1097-102. [DOI: 10.1002/chem.201504320] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Bo Yu
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Zhenzhen Yang
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Leiduan Hao
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Hongye Zhang
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Xiang Gao
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
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47
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Nguyen BH, Perkins RJ, Smith JA, Moeller KD. Solvolysis, Electrochemistry, and Development of Synthetic Building Blocks from Sawdust. J Org Chem 2015; 80:11953-62. [PMID: 26544912 DOI: 10.1021/acs.joc.5b01776] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Either aldehyde or cinnamyl ether products can be selectively extracted from raw sawdust by controlling the temperature and pressure of a solvolysis reaction. These materials have been used as platform chemicals for the synthesis of 15 different synthetic substrates. The conversion of the initial sawdust-derived materials into electron-rich aryl substrates often requires the use of oxidation and reduction chemistry, and the role electrochemistry can play as a sustainable method for these transformations has been defined.
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Affiliation(s)
- Bichlien H Nguyen
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
| | - Robert J Perkins
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
| | - Jake A Smith
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
| | - Kevin D Moeller
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
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48
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Niu GH, Huang PR, Chuang GJ. Triphenylphosphine/Triethylamine-Mediated Decarboxylation of α-Oxocarboxylic Acids and Application in a One-Pot Synthesis of Deuterated Aldehydes. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500382] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Guang-Hao Niu
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuang City, Taiwan 32023 R.O.C
| | - Pei-Ru Huang
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuang City, Taiwan 32023 R.O.C
| | - Gary Jing Chuang
- Department of Chemistry; Chung Yuan Christian University; 200 Chung Pei Road, Chung Li District Taoyuang City, Taiwan 32023 R.O.C
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49
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Chen Z, Duan HQ, Jiang X, Zhu YM, Ji SJ, Yang SL. Palladium-Catalyzed Domino Synthesis of 4-Amino-3-acyl-2- naphthols via Isocyanide Chemoselective Insertion. J Org Chem 2015; 80:8183-8. [PMID: 26246028 DOI: 10.1021/acs.joc.5b01269] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel and efficient strategy for the synthesis of sterically hindered 4-amino-3-acyl-2-naphthols through a palladium-catalyzed coupling reaction involving isocyanide chemselective insertion and domino isomerization has been developed. The methodology, which is in accordance with the principle of "atom and step economy", efficiently constructs 4-amino-3-acyl-2-naphthols in moderate to good yields.
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Affiliation(s)
- Zhong Chen
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Hua-Qing Duan
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiao Jiang
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yong-Ming Zhu
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Shun-Jun Ji
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Shi-Lin Yang
- †College of Pharmaceutical Science and ‡College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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50
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Jiang X, Wang JM, Zhang Y, Chen Z, Zhu YM, Ji SJ. Synthesis of aryl nitriles by palladium-assisted cyanation of aryl iodides using tert-butyl isocyanide as cyano source. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.059] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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