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1
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Lenko I, Mamontov A, Alayrac C, Witulski B. Pallado-Catalyzed Cascade Synthesis of 2-Alkoxyquinolines from 1,3-Butadiynamides. Molecules 2024; 29:3505. [PMID: 39124910 PMCID: PMC11314358 DOI: 10.3390/molecules29153505] [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: 06/25/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
A novel synthesis strategy to access 2-alkoxyquinoline derivatives via a palladium-driven cascade reaction is disclosed. Unlike classic methods based on the alkylation of 2-quinolones with alkyl halides, the present method benefits from the de novo assembly of the quinoline core starting from 1,3-butadiynamides. Palladium-catalyzed reaction cascades with N-(2-iodophenyl)-N-tosyl-1,3-butadiynamides and primary alcohols as external nucleophiles proceed under mild reaction conditions and selectively deliver a variety of differently functionalized 4-alkenyl 2-alkoxyquinolines in a single batch transformation.
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Affiliation(s)
| | | | - Carole Alayrac
- Laboratoire de Chimie Moléculaire et Thio-organique (LCMT), CNRS UMR 6507, ENSICAEN, Université de Caen, Normandie Univ, 6 Bd Maréchal Juin, 14050 Caen, France
| | - Bernhard Witulski
- Laboratoire de Chimie Moléculaire et Thio-organique (LCMT), CNRS UMR 6507, ENSICAEN, Université de Caen, Normandie Univ, 6 Bd Maréchal Juin, 14050 Caen, France
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2
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Yan Z, He H, Yuan D, Yan Q, Wang W, Jiang H, Wang H, Chen F. Regioselective O-alkylation of 2-pyridones by TfOH-catalyzed carbenoid insertion. Chem Commun (Camb) 2022; 59:106-109. [PMID: 36477214 DOI: 10.1039/d2cc05676c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selective alkylation of 2-pyridone could solve a challenge in chemistry and streamline the synthesis of important molecules. Here we report the regioselective O-alkylation of 2-pyridones by TfOH-catalyzed carbenoid insertion. In the catalytic system, alkylation of 2-pyridone was achieved with unprecedented regioselectiviy (>99 : 1). This protocol is characterized by mild reaction conditions, metal-free, and simplicity. Moreover, this method provides the desired products in good yield and demonstrates a broad substrate scope in this transformation.
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Affiliation(s)
- Zhewei Yan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China. .,School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Hangli He
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China. .,School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Dabiao Yuan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China. .,School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Qiongjiao Yan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China.
| | - Wei Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China.
| | - Haipeng Jiang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China.
| | - Haifeng Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China. .,School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Fener Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan, 430205, China. .,Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China.,Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, Shanghai, 200433, China
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3
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Cadena M, Villatoro RS, Gupta JS, Phillips C, Allen JB, Arman HD, Wherritt DJ, Clanton NA, Ruchelman AL, Simmons EM, DelMonte AJ, Coombs JR, Frantz DE. Pd-Catalyzed Chemoselective O-Benzylation of Ambident 2-Quinolinone Nucleophiles. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Melissa Cadena
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Roberto Silva Villatoro
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Jyoti Shah Gupta
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Cody Phillips
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Jonathan B. Allen
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Daniel J. Wherritt
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Nicholas A. Clanton
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Alexander L. Ruchelman
- Chemical Process Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - Eric M. Simmons
- Chemical Process Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - Albert J. DelMonte
- Chemical Process Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - John R. Coombs
- Chemical Process Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - Doug E. Frantz
- The Max and Minnie Tomerlin Voelcker Laboratory for Organic Chemistry, Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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Lu ZQ. The crystal structure of 4-((6-fluoropyridin-2-yloxy)methyl)benzonitrile, C 13H 9FN 2O. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C13H9FN2O, triclinic, P
1
‾
$\overline{1}$
(no. 2), a = 7.4664(8) Å, b = 8.2700(7) Å, c = 10.0709(11) Å, α = 76.991(8)°, β = 88.403(9)°, γ = 63.619(10)° V = 540.93(10) Å3, Z = 2, R
gt
(F) = 0.0534, wR
ref
(F
2
) = 0.1644, T = 293(2) K.
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Affiliation(s)
- Zhi-Qiang Lu
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan 471022 , P. R. China
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Lu ZQ. The crystal structure of 4-(((3-bromo-5-(trifluoromethyl)pyridin-2-yl)oxy)methyl)benzonitrile, C 28H 16Br 2F 6N 4O 2. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C28H16Br2F6N4O2, triclinic, P
1
‾
$\overline{1}$
(no. 2), a = 8.0085(4) Å, b = 13.6578(7) Å, c = 14.1964(6) Å, α = 96.950(4)°, β = 105.376(4)°, γ = 106.772(5)°, V = 1400.32(12) Å3, Z = 2, R
gt
(F) = 0.0570, wR
ref
(F
2) = 0.1268, T = 293(2) K.
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Affiliation(s)
- Zhi-Qiang Lu
- College of Chemistry and Chemical Engineering, Luoyang Normal University , Luoyang , Henan 471022 , P. R. China
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Abstract
Abstract
C18H14N2O3, monoclinic, P21/n (no. 14), a = 8.1644(3) Å, b = 14.5766(6) Å, c = 12.9462(4) Å, β = 91.902(3)°, V = 1539.87(10) Å3, Z = 4, R
gt
(F) = 0.0456, ωRref
(F
2) = 0.1400, T = 293(2) K.
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Abstract
Abstract
C12H9BrClNO, monoclinic, P21/n (no. 14), a = 4.3665(3) Å, b = 22.5576(17) Å, c = 12.1286(10) Å, β = 99.028(7)°, V = 1179.84(16) Å3, Z = 4, R
gt
(F) = 0.0595, wR
ref
(F
2) = 0.1451, T = 293 K.
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Affiliation(s)
- Zhi-Qiang Lu
- College of Chemistry and Chemical Engineering, Luoyang Normal University , Luoyang , Henan 471022 , P. R. China
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