1
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Bora SK, Biswas S, Behera BK, Saikia AK. Stereoselective synthesis of gem-dihalopiperidines via the halo-aza-Prins cyclization reaction: access to piperidin-4-ones and pyridines. Org Biomol Chem 2024; 22:3893-3903. [PMID: 38654601 DOI: 10.1039/d4ob00338a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
An efficient methodology for the synthesis of 4,4-dihalopiperidine derivatives in excellent yields has been developed using N-(3-halobut-3-en-1-yl)-4-methylbenzenesulfonamide and an aldehyde catalyzed by In(OTf)3. The reaction involves an initial formation of a six-membered carbocation via the aza-Prins cyclization reaction followed by a nucleophilic attack by a halide ion to give 4,4-dihalopiperidine. The dihalopiperidine is converted to tetrahydropiperidinone using Ac2O/Et3N in DCM/H2O (1 : 1). It is also utilized for the synthesis of pyridine scaffolds by treatment with DBU. Furthermore, the dihalopiperidine is transformed to its enol ether derivatives using KOH in alcohol.
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Affiliation(s)
- Surjya Kumar Bora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Subhamoy Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
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2
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Bora SK, Shit S, Sahu AK, Saikia AK. Diastereoselective Synthesis of 2,6-Disubstituted Tetrahydropyranones via Prins Cyclization of 3-Bromobut-3-en-1-ols and Aldehydes. J Org Chem 2023. [PMID: 36811615 DOI: 10.1021/acs.joc.2c02715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Tetrahydropyranones are synthesized from 3-bromobut-3-en-1-ols and aldehydes in good yields with excellent diastereoselectivity at -35 °C. The reaction involves an initial formation of a most stable six-membered chairlike tetrahydropyranyl carbocation followed by nucleophilic attack of the hydroxyl group and subsequent elimination of HBr to give tetrahydropyranone. The carbonyl moiety of the tetrahydropyranone is converted to enol ether and esters using Wittig reaction. It is also transformed into 4-hydroxy-2,6-disubstituted tetrahydropyran with 2,4- and 4,6-cis configuration by lithium aluminum hydride in up to 96% diastereoselectivity. Furthermore, the methodology is extended toward the synthesis of novel anticancer aminoguanidine compounds.
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Affiliation(s)
- Surjya Kumar Bora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sudip Shit
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Archana Kumari Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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3
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Lei J, Sha W, Xie X, Weng WT. Copper-Catalyzed C(sp)-H Bond Hydrazidation. Org Lett 2023; 25:320-324. [PMID: 36594742 DOI: 10.1021/acs.orglett.2c03876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A catalytic, direct synthetic strategy for preparing ynehydrazides with terminal alkynes and dialkyl azodicarboxylates is described. The protocol utilizes a cheap copper catalyst in combination with a catalytic amount of a weak base. The high sustainability, good practicality, broad substrate scope, and wide functional group tolerance comprised the advantages of this reaction. Synthetic applications and preliminary mechanistic studies have been conducted.
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Affiliation(s)
- Jian Lei
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, P. R. China
| | - Wanxiu Sha
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, P. R. China
| | - Xiaolan Xie
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, P. R. China
| | - Wen-Ting Weng
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, P. R. China
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4
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Kuramochi A, Komine N, Kiyota S, Hirano M. Ru(0)-Catalyzed Synthesis of Borylated-Conjugated Triene Building Blocks by Cross-Dimerization and Their Use in Cross-Coupling Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ayumi Kuramochi
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Nobuyuki Komine
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Sayori Kiyota
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Masafumi Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
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5
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Hu YC, Zhao Y, Wan B, Chen QA. Reactivity of ynamides in catalytic intermolecular annulations. Chem Soc Rev 2021; 50:2582-2625. [PMID: 33367365 DOI: 10.1039/d0cs00283f] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ynamides are unique alkynes with a carbon-carbon triple bond directly attached to the nitrogen atom bearing an electron-withdrawing group. The alkyne is strongly polarized by the electron-donating nitrogen atom, but its high reactivity can be finely tempered by the electron-withdrawing group. Accordingly, ynamides are endowed with both nucleophilic and electrophilic properties and their chemistry has been an active research field. The catalytic intermolecular annulations of ynamides, featuring divergent assembly of structurally important amino-heterocycles in a regioselective manner, have gained much attention over the past decade. This review aims to provide a comprehensive summary of the advances achieved in this area involving transition metal and acid catalysis. Moreover, the intermolecular annulations of ynamide analogs including ynol ethers and thioalkynes are also discussed, which can provide insights into the reactivity difference caused by the heteroatoms.
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Affiliation(s)
- Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
| | - Yingying Zhao
- School of Chemistry and Chemical Engineering, Liaoning Normal University, 850 Huanghe Road, Dalian 116029, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
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6
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Tsuda T, Choi SM, Shintani R. Palladium-Catalyzed Synthesis of Dibenzosilepin Derivatives via 1,n-Palladium Migration Coupled with anti-Carbopalladation of Alkyne. J Am Chem Soc 2021; 143:1641-1650. [DOI: 10.1021/jacs.0c12453] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomohiro Tsuda
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Seung-Min Choi
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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7
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Reding A, Ohta N, Sebrantke P, Jones PG, Nakao Y, Werz DB. Intramolecular
trans
‐Carbocarbonation of Carbon‐Carbon Triple Bonds by an
anti
‐Carbopalladation/Suzuki Coupling Cascade. ChemCatChem 2020. [DOI: 10.1002/cctc.202000545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Andreas Reding
- Technische Universität BraunschweigInstitute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Naoki Ohta
- Department of Material ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Philip Sebrantke
- Technische Universität BraunschweigInstitute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Technische Universität BraunschweigInstitute of Inorganic and Analytical Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Yoshiaki Nakao
- Department of Material ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Daniel B. Werz
- Technische Universität BraunschweigInstitute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
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8
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Wang HR, Huang EH, Luo C, Luo WF, Xu Y, Qian PC, Zhou JM, Ye LW. Copper-catalyzed tandem cis-carbometallation/cyclization of imine-ynamides with arylboronic acids. Chem Commun (Camb) 2020; 56:4832-4835. [PMID: 32236203 DOI: 10.1039/d0cc01424a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An efficient copper-catalyzed tandem regioselective cis-carbometallation/cyclization of imine-ynamides with arylboronic acids has been developed. This method leads to a facile and practical synthesis of valuable 2,3-disubstituted indolines in moderate to excellent yields and features a broad substrate scope and wide functional group tolerance. Other significant features of this protocol include the use of readily available starting materials, high flexibility, simple procedure and mild reaction conditions.
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Affiliation(s)
- Hao-Ran Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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9
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Kang K, Sakamoto K, Nishimoto Y, Yasuda M. Synthesis of (Z)-β-(Carbonylamino)alkenylindium through Regioselective anti-Carboindation of Ynamides and Its Transformation to Multisubstituted Enamides. Chemistry 2020; 26:4930-4934. [PMID: 31833583 DOI: 10.1002/chem.201905175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/12/2019] [Indexed: 11/06/2022]
Abstract
The regioselective anti-carboindation of ynamides by using InBr3 and silylated nucleophiles was developed to synthesize (Z)-β-(carbonylamino)alkenylindiums. The X-ray crystallographic analysis of an alkenylindium suggested that the reaction proceeded in an anti-addition fashion. In contrast to reported syn-carbometalations of ynamides by using organometallics, a cooperation of InBr3 and silylated nucleophiles to ynamides achieved an anti-addition, which was supported by DFT calculations. The scope of substrates included various ynamides and silylated nucleophiles, such as silyl ketene acetals and silyl ketene imines. The transformation of synthesized alkenylindiums by iodination, radical coupling, and Pd-catalyzed cross-coupling successfully afforded trisubstituted enamines with high regio- and stereoselectivities.
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Affiliation(s)
- Kyoungmin Kang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, Japan
| | - Kosuke Sakamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, Japan
| | - Yoshihiro Nishimoto
- Frontier Research Base for Global Young Researchers Center, for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, Japan
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10
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Shen MH, Zhang YM, Jiang C, Xu HD, Xu D. Ag-Catalyzed cycloisomerization of 1,6-enynamide: an intramolecular type II Alder-ene reaction. Org Chem Front 2020. [DOI: 10.1039/c9qo01258c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unusual type II Alder-ene cycloisomerization of 1,6-enynamide to fused bicyclic N-heterocycles is achieved by silver catalysis. 6-Endo-trig cyclization of a keteneiminium silver intermediate is proposed as the key step.
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Affiliation(s)
- Mei-Hua Shen
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou 213164
- China
| | - Yu-Mei Zhang
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou 213164
- China
| | - Chun Jiang
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou 213164
- China
| | - Hua-Dong Xu
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou 213164
- China
| | - Defeng Xu
- School of Pharmaceutical Engineering and Life Science
- Changzhou University
- Changzhou 213164
- China
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11
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Ledovskaya MS, Voronin VV, Rodygin KS, Ananikov VP. Efficient labeling of organic molecules using 13C elemental carbon: universal access to 13C2-labeled synthetic building blocks, polymers and pharmaceuticals. Org Chem Front 2020. [DOI: 10.1039/c9qo01357a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthetic methodology enabled by 13C-elemental carbon is reported. Calcium carbide Ca13C2 was applied to introduce a universal 13C2 unit in the synthesis of labeled alkynes, O,S,N-vinyl derivatives, labeled polymers and 13C2-pyridazine drug core.
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Affiliation(s)
| | | | - Konstantin S. Rodygin
- Institute of Chemistry
- Saint Petersburg State University
- Peterhof
- Russia
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences
| | - Valentine P. Ananikov
- Institute of Chemistry
- Saint Petersburg State University
- Peterhof
- Russia
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences
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12
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Schitter T, Stammwitz S, Jones PG, Werz DB. An anti-Carbopalladation/Amination Cascade with Alkynes: Access to Tetrasubstituted Enamines and Pyrroles. Org Lett 2019; 21:9415-9419. [DOI: 10.1021/acs.orglett.9b03625] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Yang P, Li J, Sun L, Yao M, Zhang X, Xiao WL, Wang JH, Tian P, Sun HD, Puno PT, Li A. Elucidation of the Structure of Pseudorubriflordilactone B by Chemical Synthesis. J Am Chem Soc 2019; 142:13701-13708. [PMID: 31707779 DOI: 10.1021/jacs.9b09699] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Peng Yang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Li Sun
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ming Yao
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiang Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wei-Lie Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jian-Hua Wang
- Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ping Tian
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, China
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14
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Kumar P, Zainul O, Camarda FM, Jiang T, Mannone JA, Huang W, Laughlin ST. Caged Cyclopropenes with Improved Tetrazine Ligation Kinetics. Org Lett 2019; 21:3721-3725. [DOI: 10.1021/acs.orglett.9b01177] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Pratik Kumar
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
| | - Omar Zainul
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
| | - Frank M. Camarda
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
| | - Ting Jiang
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
| | - John A. Mannone
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
| | - Wei Huang
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
| | - Scott T. Laughlin
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790, United States
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15
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Kohr M, Kazmaier U. Halogenated Allyl Alcohol Derivatives - Versatile Electrophiles for Palladium-Catalyzed Allylic Alkylations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michael Kohr
- Organic Chemistry; Saarland University; P.O. Box 151150 66041 Saarbrücken Germany
| | - Uli Kazmaier
- Organic Chemistry; Saarland University; P.O. Box 151150 66041 Saarbrücken Germany
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16
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Hou Y, Ma J, Yang H, Anderson EA, Whiting A, Wu N. Palladium-catalysed ligand-free reductive Heck cycloisomerisation of 1,6-en-α-chloro-enamides. Chem Commun (Camb) 2019; 55:3733-3736. [PMID: 30855630 DOI: 10.1039/c9cc00537d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example of an intramolecular hydroarylation of 1,6-en-α-chloro-enamides was achieved by a palladium-catalysed ligand-free reductive Heck cycloisomerisation with no competing Heck-cyclised by-product.
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Affiliation(s)
- Yangyang Hou
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Gulin, Guangxi 541004, China.
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17
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Schitter T, Roy NJ, Jones PG, Werz DB. Synthesis of Highly Substituted Furans by a Cascade of Formal anti-Carbopalladation/Hydroxylation and Elimination. Org Lett 2019; 21:640-643. [DOI: 10.1021/acs.orglett.8b03732] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Lopes AB, Wagner P, Gulea M. Synthesis of Benzimidazole-Fused Medium-Sized N,S
-Heterocycles via Palladium-Catalyzed Cyclizations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801686] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Alexandra Basilio Lopes
- Laboratoire d'Innovation Thérapeutique (LIT) UMR 7200; Faculté de Pharmacie; Université de Strasbourg, CNRS; route du Rhin 67401 Illkirch France
| | - Patrick Wagner
- Laboratoire d'Innovation Thérapeutique (LIT) UMR 7200; Faculté de Pharmacie; Université de Strasbourg, CNRS; route du Rhin 67401 Illkirch France
| | - Mihaela Gulea
- Laboratoire d'Innovation Thérapeutique (LIT) UMR 7200; Faculté de Pharmacie; Université de Strasbourg, CNRS; route du Rhin 67401 Illkirch France
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19
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Pang Y, Liang G, Xie F, Hu H, Du C, Zhang X, Cheng M, Lin B, Liu Y. N-Fluorobenzenesulfonimide as a highly effective Ag(i)-catalyst attenuator for tryptamine-derived ynesulfonamide cycloisomerization. Org Biomol Chem 2019; 17:2247-2257. [DOI: 10.1039/c9ob00059c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
N-Fluorobenzenesulfonimide was identified for the first time as a unique Ag(i)-catalyst attenuator in the annulation of a tryptamine-derived ynesulfonamide to an azepino[4,5-b]indole.
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Affiliation(s)
- Yadong Pang
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Guoduan Liang
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Fukai Xie
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Haibin Hu
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Chuan Du
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Xinhang Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Yongxiang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery Shenyang Pharmaceutical University
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
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20
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Vargas DF, Larghi EL, Kaufman TS. First total synthesis of ampullosine, a unique isoquinoline alkaloid isolated from Sepedonium ampullosporum, and of the related permethylampullosine. RSC Adv 2019; 9:33096-33106. [PMID: 35529133 PMCID: PMC9073199 DOI: 10.1039/c9ra06839b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/07/2019] [Indexed: 12/02/2022] Open
Abstract
A straightforward and convenient approach toward the first total synthesis of ampullosine, a structurally unique 3-methylisoquinoline alkaloid isolated from Sepedonium ampullosporum, is reported. Access to the related O-methyl ampullosine methyl ester from a common intermediate is also disclosed. The synthetic sequence toward the natural product comprised a Kolbe-type carboxylation of 3,5-dihydroxybenzoic acid and further esterification of the diacid, followed by masking of one of the phenols through selective ester reduction and subsequent acetonide formation. Installation of the three-carbon atom required for the 3-methylpyridine ring was performed by triflation of the remaining free phenol and a Pd-catalyzed Suzuki–Miyaura reaction with potassium E-propenyltrifluoroborate. Deprotection of the acetonide, followed by partial oxidation of the benzylic alcohol to the salicylaldehyde, O-methylation of the free phenol and hydrazonation of the resulting ortho-anisaldehyde derivative gave a hydrazone-based 1-azatriene. This was further subjected to 6π-azaelectrocyclization to afford permethylampullosine (11 steps, 14% overall yield), whereas exhaustive demethylation with AlI3 generated in situ gave ampullosine (12 steps, 3.2% global yield). The first total synthesis of ampullosine, a unique isoquinoline isolated from Sepedonium ampullosporum, is reported. The related permethylampullosine was also synthesized.![]()
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Affiliation(s)
- Didier F. Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
| | - Enrique L. Larghi
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
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21
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Liu C, Sun Z, Xie F, Liang G, Yang L, Li Y, Cheng M, Lin B, Liu Y. Gold(i)-catalyzed pathway-switchable tandem cycloisomerizations to indolizino[8,7-b]indole and indolo[2,3-a]quinolizine derivatives. Chem Commun (Camb) 2019; 55:14418-14421. [DOI: 10.1039/c9cc05667j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A common strategy was developed to access both indolizino[8,7-b]indole and indolo[2,3-a]quinolizine derivatives from tryptamine-N-ethynylpropiolamide substrates in a switchable fashion via tuning both the electronic effects and steric effects.
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Affiliation(s)
- Chengjun Liu
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Wuya College of Innovation
| | - Zenghui Sun
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Wuya College of Innovation
| | - Fukai Xie
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Wuya College of Innovation
| | - Guoduan Liang
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Wuya College of Innovation
| | - Lu Yang
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Yaqiao Li
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Institute of Drug Research in Medicine Capital of China
| | - Yongxiang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University)
- Ministry of Education
- Shenyang 110016
- P. R. China
- Wuya College of Innovation
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22
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Reding A, Jones PG, Werz DB. Intramolecular trans-Carbocarbonation of Internal Alkynes by a Cascade of Formal anti-Carbopalladation/Cyclopropanol Opening. Org Lett 2018; 20:7266-7269. [PMID: 30398882 DOI: 10.1021/acs.orglett.8b03179] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An intramolecular cascade reaction consisting of a formal anti-carbopalladation terminated by the ring-opening of a cyclopropanol unit is presented. The products, which involve tetrasubstituted alkene units embedded in an oligocyclic ring system, are generated in moderate to excellent yield. The opening of the cyclopropanol unit leads to a keto group in the γ-position to the emerging double bond.
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23
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Schitter T, Jones PG, Werz DB. Intramolecular Pd-Catalyzed Formal anti-Carboalkoxylation of Alkynes: Access to Tetrasubstituted Enol Ethers. Chemistry 2018; 24:13446-13449. [PMID: 30035827 DOI: 10.1002/chem.201803721] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Indexed: 11/11/2022]
Abstract
An intramolecular Pd-catalyzed formal anti-carboalkoxylation reaction is presented that provides access to tetrasubstituted enol ethers. The key to success is a cascade consisting of a formal anti-carbopalladation of a carbon-carbon triple bond followed by a nucleophilic attack of a hydroxy group at the emerging vinyl organopalladium species. The desired transformation proceeded smoothly with primary, secondary, and tertiary alcohols, and even with phenols. Depending on the substitution pattern of the enol ethers, a further Tsuji-Trost-type step may occur resulting in oligocyclic ketals.
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Affiliation(s)
- Theresa Schitter
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106, Braunschweig, Germany
| | - Peter G Jones
- Technische Universität Braunschweig, Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106, Braunschweig, Germany
| | - Daniel B Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106, Braunschweig, Germany
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24
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Reding A, Jones PG, Werz DB. trans
‐Carbocarbonation of Internal Alkynes through a Formal
anti
‐Carbopalladation/C−H Activation Cascade. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805399] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Andreas Reding
- Technische Universität BraunschweigInstitute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Technische Universität BraunschweigInstitute of Inorganic and Analytical Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Daniel B. Werz
- Technische Universität BraunschweigInstitute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
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25
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Reding A, Jones PG, Werz DB. trans-Carbocarbonation of Internal Alkynes through a Formal anti-Carbopalladation/C-H Activation Cascade. Angew Chem Int Ed Engl 2018; 57:10610-10614. [PMID: 29846035 DOI: 10.1002/anie.201805399] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/30/2018] [Indexed: 11/06/2022]
Abstract
An intramolecular Pd-catalyzed cascade reaction is presented that consists of a formal anti-carbopalladation of a C-C triple bond followed by C-H activation. As a result, oligocyclic ring systems with an embedded tetrasubstituted double bond are formed. The key to success in affording the trans geometry of the emerging double bond are alkyne units with residues that must not undergo β-hydride elimination (e.g., t-butyl or silyl groups). Silyl groups proved to be a perfect handle to further convert the tetrasubstituted alkenes. The evaluation of kinetic data with a deuterium-labeled compound and X-ray analyses of trapped intermediates provided additional insight into the catalytic cycle.
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Affiliation(s)
- Andreas Reding
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106, Braunschweig, Germany
| | - Peter G Jones
- Technische Universität Braunschweig, Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106, Braunschweig, Germany
| | - Daniel B Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106, Braunschweig, Germany
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26
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Castanheiro T, Schoenfelder A, Donnard M, Chataigner I, Gulea M. Synthesis of Sulfur-Containing Exo-Bicyclic Dienes and Their Diels-Alder Reactions To Access Thiacycle-Fused Polycyclic Systems. J Org Chem 2018; 83:4505-4515. [PMID: 29613799 DOI: 10.1021/acs.joc.8b00213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stereocontrolled synthesis of unprecedented sulfur-containing exo-bicyclic 1,3-dienes is reported through a palladium-catalyzed reductive cyclization of sulfur-linked 2-bromoenynes. The fused bicyclic structure provides a better stability to the thiacyclic diene compared to the simple 3,4-dimethylenetetrahydrothiophene. Their reactivity toward several dienophiles has been investigated, and various original thiacycle-fused polycyclic systems have been obtained with high or total diastereoselectivity. Moreover, they are the first exo-bicyclic dienes used in Diels-Alder reactions. The relative configurations of four cycloadducts have been unambiguously assigned by X-ray crystallographic analysis. Mechanistic details of the cycloadditions have been examined by computational means.
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Affiliation(s)
- Thomas Castanheiro
- Université de Strasbourg , CNRS, Laboratoire d'Innovation Thérapeutique, LIT UMR 7200 , 67000 Strasbourg , France
| | - Angèle Schoenfelder
- Université de Strasbourg , CNRS, Laboratoire d'Innovation Thérapeutique, LIT UMR 7200 , 67000 Strasbourg , France
| | - Morgan Donnard
- Université de Strasbourg , CNRS, Laboratoire d'Innovation Thérapeutique, LIT UMR 7200 , 67000 Strasbourg , France
| | - Isabelle Chataigner
- Normandie Université , INSA Rouen, CNRS, COBRA UMR 6014 , 76000 Rouen , France.,Sorbonne Université, UPMC Univ Paris 6 , CNRS UMR 7616 Laboratoire de Chimie Théorique , 75005 Paris , France
| | - Mihaela Gulea
- Université de Strasbourg , CNRS, Laboratoire d'Innovation Thérapeutique, LIT UMR 7200 , 67000 Strasbourg , France
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27
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Kumar P, Zainul O, Laughlin ST. Inexpensive multigram-scale synthesis of cyclic enamines and 3-N spirocyclopropyl systems. Org Biomol Chem 2018; 16:652-656. [DOI: 10.1039/c7ob02659e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclic enamines are important synthons for many synthetic and pharmacological targets. We report a method for the synthesis of cyclic enamines with exocyclic double bonds and four- to seven-membered rings that permits usage of common N-protecting groups and tolerates functionality round the ring system.
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Affiliation(s)
- Pratik Kumar
- Department of Chemistry
- Stony Brook University
- Stony Brook
- USA
| | - Omar Zainul
- Department of Chemistry
- Stony Brook University
- Stony Brook
- USA
| | - Scott T. Laughlin
- Department of Chemistry
- Stony Brook University
- Stony Brook
- USA
- Institute for Chemical Biology and Drug Discovery
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28
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Mansfield SJ, Christensen KE, Thompson AL, Ma K, Jones MW, Mekareeya A, Anderson EA. Copper-Catalyzed Synthesis and Applications of Yndiamides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706915] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | | | | | - Kai Ma
- Chemistry Research Laboratory; 12 Mansfield Road Oxford OX1 3TA UK
| | - Michael W. Jones
- Chemistry Research Laboratory; 12 Mansfield Road Oxford OX1 3TA UK
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29
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Mansfield SJ, Christensen KE, Thompson AL, Ma K, Jones MW, Mekareeya A, Anderson EA. Copper-Catalyzed Synthesis and Applications of Yndiamides. Angew Chem Int Ed Engl 2017; 56:14428-14432. [DOI: 10.1002/anie.201706915] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/11/2017] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Kai Ma
- Chemistry Research Laboratory; 12 Mansfield Road Oxford OX1 3TA UK
| | - Michael W. Jones
- Chemistry Research Laboratory; 12 Mansfield Road Oxford OX1 3TA UK
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30
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Alam K, Hong SW, Oh KH, Park JK. Divergent C-H Annulation for Multifused N-Heterocycles: Regio- and Stereospecific Cyclizations of N-Alkynylindoles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705514] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Khyarul Alam
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Sung Won Hong
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Kyung Hwan Oh
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
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31
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Alam K, Hong SW, Oh KH, Park JK. Divergent C-H Annulation for Multifused N-Heterocycles: Regio- and Stereospecific Cyclizations of N-Alkynylindoles. Angew Chem Int Ed Engl 2017; 56:13387-13391. [DOI: 10.1002/anie.201705514] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/01/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Khyarul Alam
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Sung Won Hong
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Kyung Hwan Oh
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
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32
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Mekareeya A, Walker PR, Couce-Rios A, Campbell CD, Steven A, Paton RS, Anderson EA. Mechanistic Insight into Palladium-Catalyzed Cycloisomerization: A Combined Experimental and Theoretical Study. J Am Chem Soc 2017; 139:10104-10114. [DOI: 10.1021/jacs.7b05436] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Aroonroj Mekareeya
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - P. Ross Walker
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Almudena Couce-Rios
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Craig D. Campbell
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Alan Steven
- AstraZeneca Pharmaceutical Techology and Development, Charter Way, Macclesfield,
Cheshire SK10 2NA, U.K
| | - Robert S. Paton
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Edward A. Anderson
- Chemistry
Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
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34
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Liu T, Sun J, Wang Q, Li L, Zhou MD. CuBr2
/TBHP-Promoted Selective Dibromination and Bromohydroxylation of (Diphenylphosphoryl)allenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tian Liu
- School of Chemistry and Materials Science; Liaoning Shihua University; Dandong Road 1 113001 Fushun P. R. China
| | - Jing Sun
- School of Chemistry and Materials Science; Liaoning Shihua University; Dandong Road 1 113001 Fushun P. R. China
| | - Qiang Wang
- School of Chemistry and Materials Science; Liaoning Shihua University; Dandong Road 1 113001 Fushun P. R. China
| | - Lei Li
- School of Chemistry and Materials Science; Liaoning Shihua University; Dandong Road 1 113001 Fushun P. R. China
| | - Ming-Dong Zhou
- School of Chemistry and Materials Science; Liaoning Shihua University; Dandong Road 1 113001 Fushun P. R. China
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35
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Düfert A, Werz DB. Carbopalladation Cascades Using Carbon-Carbon Triple Bonds: Recent Advances to Access Complex Scaffolds. Chemistry 2016; 22:16718-16732. [PMID: 27667738 DOI: 10.1002/chem.201603044] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Indexed: 12/13/2022]
Abstract
Alkynes are one of the most versatile functional groups as synthetic handles. They allow for a direct access to partially or fully substituted alkenes through difunctionalization reactions. A prominently utilized transformation for these sequences is the carbopalladation of alkynes, which can be followed by various termination steps such as aromatizations, dearomatizations, cross-coupling reactions, or pericyclic processes, amongst others. This Minireview provides an overview of the recent literature published in the field of carbopalladation chemistry, both with a focus on methodology as well as its application in the syntheses of complex molecular scaffolds, natural products, and functional molecules.
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Affiliation(s)
| | - Daniel B Werz
- Technische Universität Braunschweig, Institut für Organische Chemie, Hagenring 30, 38106, Braunschweig, Germany
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36
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Milde B, Reding A, Geffers FJ, Jones PG, Werz DB. Intramoleculartrans-Dicarbofunctionalization of Alkynes by a Formalanti-Carbopalladation/Stille Cascade. Chemistry 2016; 22:14544-7. [DOI: 10.1002/chem.201603784] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Indexed: 01/29/2023]
Affiliation(s)
- Bastian Milde
- Technische Universität Braunschweig; Institute of Organic Chemistry; Hagenring 30 38106 Braunschweig Germany
| | - Andreas Reding
- Technische Universität Braunschweig; Institute of Organic Chemistry; Hagenring 30 38106 Braunschweig Germany
| | - Finn J. Geffers
- Technische Universität Braunschweig; Institute of Organic Chemistry; Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Technische Universität Braunschweig; Institute of Inorganic and Analytical Chemistry; Hagenring 30 38106 Braunschweig Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig; Institute of Organic Chemistry; Hagenring 30 38106 Braunschweig Germany
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37
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Meyer AG, Smith JA, Hyland C, Williams CC, Bissember AC, Nicholls TP. Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2016. [DOI: 10.1016/b978-0-08-100755-6.00016-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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