1
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Liu G, Xu S, Yue Y, Su C, Song W. Synthesis of thioesters using an electrochemical three-component reaction involving elemental sulfur. Chem Commun (Camb) 2024; 60:6154-6157. [PMID: 38804515 DOI: 10.1039/d4cc01910e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
An electrochemical three-component reaction involving elemental sulfur is disclosed for achieving a metal-free, oxidant-free synthesis of thioesters in a high atom-economical, step-economical and chemoselective manner. A mechanistic investigation indicates that the use of elemental sulfur to trap acyl radical derived from radical umpolung of α-keto acid with an electrochemical design can efficiently generate a carbonyl thiyl radical, which can further be captured by diazoalkane to afford various thioesters.
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Affiliation(s)
- Gongbo Liu
- Cancer Hospital of Dalian University of Technology, School of Chemistry, School of Chemical Engineering, Dalian, 116024, P. R. China.
| | - Shuoyu Xu
- Cancer Hospital of Dalian University of Technology, School of Chemistry, School of Chemical Engineering, Dalian, 116024, P. R. China.
| | - Yangyang Yue
- Cancer Hospital of Dalian University of Technology, School of Chemistry, School of Chemical Engineering, Dalian, 116024, P. R. China.
| | - Changhui Su
- Cancer Hospital of Dalian University of Technology, School of Chemistry, School of Chemical Engineering, Dalian, 116024, P. R. China.
| | - Wangze Song
- Cancer Hospital of Dalian University of Technology, School of Chemistry, School of Chemical Engineering, Dalian, 116024, P. R. China.
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2
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Li Y, Sun L, Huang S, Xu K, Zeng CC. Electrochemical quinuclidine-mediated Minisci-type acylation of N-heterocycles with aldehydes. Chem Commun (Camb) 2024; 60:6174-6177. [PMID: 38804811 DOI: 10.1039/d4cc00800f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The electro-generation of acyl radicals from both aromatic and aliphatic aldehydes remains an unmet challenge. We provide a solution to this challenge by merging electro-oxidation and a quinuclidine-mediated hydrogen atom transfer strategy. The generation of acyl radicals at decreased applied potentials compared to that of formyl oxidation exhibits excellent functional group compatibility.
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Affiliation(s)
- Yongmei Li
- College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Liangbo Sun
- College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Shengyang Huang
- College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Kun Xu
- College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
| | - Cheng-Chu Zeng
- College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China.
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3
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Reddy CR, Kolgave DH, Fatima S, Ramesh R. Carbonylative cyclization of biaryl enones with aldehydes and oxamic acids. Org Biomol Chem 2024. [PMID: 38832447 DOI: 10.1039/d4ob00513a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
An oxidative radical-promoted carbonylative cyclization strategy for the synthesis of phenanthren-9-(10H)-one frameworks from biaryl enones using aldehydes as the carbonyl radical sources is disclosed. The reaction proceeds through a sequential addition of a carbonyl radical to the olefin followed by cyclization with an aryl ring. The method is further extended to carbamoyl radicals generated from oxamic acids to access the corresponding phenanthrenones with amide functionalities.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Dattahari H Kolgave
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Sana Fatima
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Remya Ramesh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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4
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Tambe SD, Hwang HS, Park E, Cho EJ. Dual Photoredox and Nickel Catalysis in Regioselective Diacylation: Exploring the Versatility of Nickel Oxidation States in Allene Activation. Org Lett 2024; 26:4147-4151. [PMID: 38722196 DOI: 10.1021/acs.orglett.4c01373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
We present a nickel-catalyzed regioselective radical diacylation of allenes with ketoacids to produce 1,4-dione products by dual photoredox and nickel catalysis. This integrated approach merges redox-active oxidative addition and reductive elimination steps with migratory insertion. The acyl radical generated in the photoredox cycle sequentially adds to Ni(I) and Ni(II) intermediates following a Ni(I)-Ni(II)-Ni(II)-Ni(III)-Ni(I) catalytic cycle. This methodology, supported by DFT calculations, demonstrates the potential of nickel catalysis in the creation of complex molecular architectures.
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Affiliation(s)
- Shrikant D Tambe
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ho Seong Hwang
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eunhui Park
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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5
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Niu M, Yang C, Leng M, Cao Q, Li M, Shen Z. Visible-Light-Driven Decarboxylative Coupling of 2 H-Indazoles with α-Keto Acids without Photocatalysts and Oxidants. J Org Chem 2024; 89:6159-6168. [PMID: 38642058 PMCID: PMC11077484 DOI: 10.1021/acs.joc.4c00176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/22/2024]
Abstract
An efficient synthesis of functionalized 3-acyl-2H-indazoles via visible-light-induced self-catalyzed energy transfer was developed. This method utilized a self-catalyzed energy transfer process between 2H-indazoles and α-keto acids, offering advantages like absence of photosensitizers, metal catalysts, and strong oxidants, broad substrate compatibility, and operational simplicity under mild conditions.
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Affiliation(s)
- Mengyu Niu
- College
of Chemical Engineering, Zhejiang University
of Technology, Hangzhou 310014, China
| | - Chen Yang
- College
of Chemical Engineering, Zhejiang University
of Technology, Hangzhou 310014, China
| | - Mingzhu Leng
- College
of Chemical Engineering, Zhejiang University
of Technology, Hangzhou 310014, China
| | - Qun Cao
- School
of Chemistry, University of Leicester, Leicester LE1 7RH, United Kingdom of Great Britain and Northern
Ireland
| | - Meichao Li
- College
of Chemical Engineering, Zhejiang University
of Technology, Hangzhou 310014, China
| | - Zhenlu Shen
- College
of Chemical Engineering, Zhejiang University
of Technology, Hangzhou 310014, China
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6
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Sharma A, Singh J, Sharma A. Synthesis of Quinazolinones and Benzothiazoles Using α-Keto Acids under Ball Milling. J Org Chem 2024; 89:5229-5238. [PMID: 38551089 DOI: 10.1021/acs.joc.3c02435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Mechanochemistry refers to the initiation of chemical reactions via mechanical forces such as milling, grinding, or shearing to achieve the chemical transformations. As a manifestation of mechanocatalysis, herein, an oxidant-free and solvent-free approach for the synthesis of quinazolinones (23 derivatives) and benzothiazoles (23 derivatives) has been developed through stainless-steel-driven decarboxylative acyl radical generation from α-keto acids. A library of 2-arylquinazolinones and 2-arylbenzothiazoles has been prepared in moderate to good yields at room temperature. Moreover, control experiments and XPS studies supported the reduction (by zerovalent iron) of molecular oxygen through the moderate abrasion of balls, which promoted the generation of a superoxide radical anion via a SET process.
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Affiliation(s)
- Anoop Sharma
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Jitender Singh
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Anuj Sharma
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
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7
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Wu J, Zhang M, He J, Li K, Ye L, Zhou J, Xu X, Li Z, Xu H. Electrochemical oxidative decarboxylative of α-oxocarboxylic acids towards the synthesis of quinazolines and quinazolinones. RSC Adv 2024; 14:7551-7556. [PMID: 38440270 PMCID: PMC10910557 DOI: 10.1039/d4ra01318b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 03/06/2024] Open
Abstract
A mild and environmentally electrochemical method for the synthesis of quinazolines and quinazolinones has been developed through anodic oxidation decarboxylative of α-oxocarboxylic acids. The present reaction was efficiently conducted by using simple and cheap NH4I as the N-source and electrolyte in an undivided cell. The desired products, quinazolines and quinazolinones, were isolated in high yield under chemical oxidant free conditions.
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Affiliation(s)
- Jiwei Wu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang 233100 China
| | - Mengru Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang 233100 China
| | - Jun He
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang 233100 China
| | - Kaixuan Li
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang 233100 China
| | - Longqiang Ye
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang 233100 China
| | - Jie Zhou
- School of Food and Biological Engineering, Hefei University of Technology Hefei 230009 China
| | - Xiaolan Xu
- School of Medical Science, Anhui Medical University Hefei 230009 China
| | - Zirong Li
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang 233100 China
| | - Huajian Xu
- School of Food and Biological Engineering, Hefei University of Technology Hefei 230009 China
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8
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Li Q, Chen J, Luo Y, Xia Y. Photoredox-Catalyzed Hydroacylation of Azobenzenes with Carboxylic Acids. Org Lett 2024; 26:1517-1521. [PMID: 38346172 DOI: 10.1021/acs.orglett.4c00238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Acyl hydrazides are widely found in bioactive compounds and have important applications as versatile synthetic intermediates. In the current report, a photoredox-catalyzed hydroacylation of azobenzenes was disclosed with carboxylic acids as the acylation reagent, affording a variety of N,N'-disubstituted hydrazides. The process possesses the advantages of mild reaction conditions, broad substrate scope, and high efficiency. Preliminary mechanistic investigation indicated that the addition of an acyl radical to the azo compound should be involved.
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Affiliation(s)
- Qiao Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jianhui Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yanshu Luo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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9
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Ma B, Gong Y, Long Y, Chen Z, Yuan Y, Yang J. Synthesis of Acylhydroquinones through Visible-Light-Mediated Hydroacylation of Quinones with α-Keto Acids. J Org Chem 2024; 89:1669-1680. [PMID: 38204383 DOI: 10.1021/acs.joc.3c02361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A mild and eco-friendly visible-light-induced protocol for the hydroacylation of quinones with α-keto acids has been developed. In the absence of any catalyst or additive, the decarboxylative hydroacylation proceeded smoothly under visible-light irradiation at room temperature. A wide range of quinones and α-keto acids were well-tolerated and afforded hydroacylation products up to 88% isolated yield. The reaction can be scaled up, and the induced groups are useful for further synthetic applications. Preliminarily, mechanistic studies indicated that photoactive quinones absorb visible light to facilitate the transformation.
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Affiliation(s)
- Ben Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yawen Gong
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yun'e Long
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Zhiyong Chen
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yong Yuan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jingya Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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10
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Prince, Monika, Kumar P, Singh BK. Visible-Light-Driven Regioselective Decarboxylative Acylation of N-Methyl-3-phenylquinoxalin-2(1 H)-one by Dual Palladium-Photoredox Catalysis Through C-H Activation. ACS OMEGA 2024; 9:651-657. [PMID: 38239288 PMCID: PMC10796110 DOI: 10.1021/acsomega.3c06367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/18/2023] [Accepted: 11/28/2023] [Indexed: 01/22/2024]
Abstract
We report herein an efficient visible-light-promoted approach for the regioselective decarboxylative C-H acylation of N-methyl-3-phenylquinoxalin-2(1H)-ones using α-oxo-2-phenylacetic acids via dual palladium-photoredox catalysis. The reactions were carried out at room temperature in the presence of 24 W blue LEDs. The established protocol tolerated a wide range of functional groups and enabled the synthesis of several acylated N-methyl-3-phenylquinoxalin-2(1H)-ones in good to excellent yields. The proposed mechanism for this transformation was supported by control experiments.
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Affiliation(s)
- Prince
- Bio-organic
Chemistry Laboratory, Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Monika
- Bio-organic
Chemistry Laboratory, Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Prashant Kumar
- Bio-organic
Chemistry Laboratory, Department of Chemistry, University of Delhi, New Delhi 110007, India
- Department
of Chemistry, SRM University Delhi-NCR Sonepat, Sonepat, Haryana 131029, India
| | - Brajendra Kumar Singh
- Bio-organic
Chemistry Laboratory, Department of Chemistry, University of Delhi, New Delhi 110007, India
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11
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Davies AM, Londhe SS, Smith ER, Tunge JA. Single-Step Synthesis of γ-Ketoacids through a Photoredox-Catalyzed Dual Decarboxylative Coupling of α-Oxo Acids and Maleic Anhydrides. Org Lett 2023. [PMID: 37991504 DOI: 10.1021/acs.orglett.3c03258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
A photocatalytic methodology for the single step synthesis of γ-ketoacids from α-ketoacids has been developed. This method employs maleic anhydrides as traceless synthetic equivalents of acrylic acids, achieving a selective cross-coupling via a dual decarboxylative strategy, where molecular CO2 is released as the only waste byproduct. The method has also been expanded to incorporate a highly regioselective, 3-component coupling with various alcohols to access functionalized γ-ketoesters.
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Affiliation(s)
- Alex M Davies
- Department of Chemistry, The University of Kansas, 1567 Irving Hill Rd., Lawrence, Kansas 66045, United States
| | - Shrikant S Londhe
- Department of Chemistry, The University of Kansas, 1567 Irving Hill Rd., Lawrence, Kansas 66045, United States
| | - Emma R Smith
- Department of Chemistry, The University of Kansas, 1567 Irving Hill Rd., Lawrence, Kansas 66045, United States
| | - Jon A Tunge
- Department of Chemistry, The University of Kansas, 1567 Irving Hill Rd., Lawrence, Kansas 66045, United States
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12
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Russo C, Donati G, Giustiniano F, Amato J, Marinelli L, Whitby RJ, Giustiniano M. Isocyanides as Catalytic Electron Acceptors in the Visible Light Promoted Oxidative Formation of Benzyl and Acyl Radicals. Chemistry 2023; 29:e202301852. [PMID: 37505481 DOI: 10.1002/chem.202301852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 07/29/2023]
Abstract
The recent disclosure of the ability of aromatic isocyanides to harvest visible light and act as single electron acceptors when reacting with tertiary aromatic amines has triggered a renewed interest in their application to the development of green photoredox catalytic methodologies. Accordingly, the present work explores their ability to promote the generation of both alkyl and acyl radicals starting from radical precursors such as Hantzsch esters, potassium alkyltrifluoroborates, and α-oxoacids. Mechanistic studies involving UV-visible absorption and fluorescence experiments, electrochemical measurements of the ground-state redox potentials along with computational calculations of both the ground- and the excited-state redox potentials of a set of nine different aromatic isocyanides provide key insights to promote a rationale design of a new generation of isocyanide-based organic photoredox catalysts. Importantly, the green potential of the investigated chemistry is demonstrated by a direct and easy access to deuterium labeled compounds.
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Affiliation(s)
- Camilla Russo
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
| | - Greta Donati
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
| | - Francesco Giustiniano
- School of Chemistry, University of Southampton, University Road, SO171BJ, Southampton, UK
| | - Jussara Amato
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
| | - Luciana Marinelli
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
| | - Richard John Whitby
- School of Chemistry, University of Southampton, University Road, SO171BJ, Southampton, UK
| | - Mariateresa Giustiniano
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
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13
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Shahid M, Punnya AJ, Babu SS, Sarkar S, Gopinath P. Dual Palladium-Photoredox-Mediated Regioselective Acylation of Carbazoles and Indolines. J Org Chem 2023; 88:13686-13698. [PMID: 37767971 DOI: 10.1021/acs.joc.3c01350] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
We have described a dual palladium-photoredox-catalyzed highly regioselective acylation of carbazoles and indolines using molecular oxygen as the green oxidant. The reaction shows a broad substrate scope and good functional group tolerance. Late-stage functionalization of a carprofen drug derivative, further manipulation of products, and gram-scale synthesis of the acylated products were illustrated to show the versatility of the method.
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Affiliation(s)
- M Shahid
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India
| | - A J Punnya
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India
| | - Sakamuri Sarath Babu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India
| | - Subhendu Sarkar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India
| | - Purushothaman Gopinath
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, Andhra Pradesh 517507, India
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14
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Wu J, Zhang Y, Yang J, Yu L, Zhang S, Zhou J, Li Z, Xu X, Xu H. Decarboxylative N-Formylation of Amines with Glyoxylic Acid Promoted by H 2O 2. J Org Chem 2023; 88:13590-13597. [PMID: 37690058 DOI: 10.1021/acs.joc.3c01270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
A novel method for the synthesis of formamides through the decarboxylative N-formylation of amines with glyoxylic acid has been developed. This transformation provides an efficient protocol for the synthesis of various formamides with moderate to excellent yields, and it can accommodate a wide range of functional groups under metal free and base free conditions. In addition, the large-scale experiments and high chemoselectivity have shown great potential application of this strategy.
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Affiliation(s)
- Jiwei Wu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Yuting Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Jingyi Yang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Lingxiang Yu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Shaoqing Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Jie Zhou
- School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Institute of Industry & Equipment Technology, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Zirong Li
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Xiaolan Xu
- School of Medical Science, Anhui Medical University, Hefei, 230009, P. R. China
| | - Huajian Xu
- School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Institute of Industry & Equipment Technology, Hefei University of Technology, Hefei, 230009, P. R. China
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15
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Gong H, Zhou F, Cai C. Construction of benzoheterocycles by the reaction of α-arylglyoxylic acids and ortho-functionalized aniline under mild and minimal conditions. Org Biomol Chem 2023; 21:7639-7642. [PMID: 37682085 DOI: 10.1039/d3ob01163a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
This work describes an environmentally friendly method for the synthesis of benzoxazinones, quinoxalinones and benzothiazoles by the reaction of α-arylglyoxylic acids and ortho-functionalized aniline. In this reaction, no other reagents are needed except for reactants and solvents. The reaction was carried out at a mild temperature of 50 °C with only water and/or carbon dioxide as the by-product. Therefore, the reaction has high practical atom economy. In addition, this strategy could be scaled up to the gram level, and the natural product Cephamandole A could be synthesized on a mass scale.
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Affiliation(s)
- Hang Gong
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, P. R. China.
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Fangyuan Zhou
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Changqun Cai
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
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16
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Li JL, Yang SL, Dai QS, Huang H, Jiang L, Li QZ, Wang QW, Zhang X, Han B. Modular synthesis of 1,4-diketones through regioselective bis-acylation of olefins by merging NHC and photoredox catalysis. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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17
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Saga Y, Nakayama Y, Watanabe T, Kondo M, Masaoka S. Visible-Light-Driven Hydroacylation of Unactivated Alkenes Using Readily Available Acyl Donors. Org Lett 2023; 25:1136-1141. [PMID: 36792085 DOI: 10.1021/acs.orglett.2c04337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Herein, we report visible-light-driven hydroacylation of unactivated alkenes. We employed benzimidazolines as new acyl donors and achieved perfect regioselectivity, high functional-group tolerance, and excellent substrate generality. We also performed mechanistic experiments to elucidate the detailed reaction mechanism. This is the first example of (1) hydroacylation of unactivated alkenes using (2) easily prepared acyl donors under (3) visible-light irradiation. Our findings offer a new strategy to synthesize a wide variety of ketones under mild conditions.
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Affiliation(s)
- Yutaka Saga
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yusuke Nakayama
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Taito Watanabe
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mio Kondo
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Shigeyuki Masaoka
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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18
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Huang J, Sun WW, Li JQ, Ma AD, Liu JK, Wu B. Copper-Catalyzed C2- or C3-Thioglycosylation of Indoles with N-(Thioglycosides)succinimides: An Effective Strategy for the Total Synthesis of Isatindigotindolosides. Org Lett 2023; 25:528-532. [PMID: 36646633 DOI: 10.1021/acs.orglett.2c04270] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Isatindigotindolosides, indoles containing a 1-S-β-glucopyranosyl unit at position C2, show promising bioactivity. Here, we report a copper-catalyzed C2- or C3-thioglycosylation of indoles with N-(thioglycosides)succinimides to construct indole alkaloid glucosides. This reaction is widely tolerant of functional groups, as various indoles and thioglycosides are suitable. It also provides a reliable method for performing late-stage modifications of natural products, such as gramine and melatonin. Total syntheses of isatindigotindolosides I and II were successfully accomplished using the C2-thioglycosylation reaction as a key step.
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Affiliation(s)
- Jie Huang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Wen-Wu Sun
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Jin-Quan Li
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Ao-Di Ma
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Bin Wu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China.,Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central Minzu University, Wuhan 430074, China
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19
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Huang J, Li X, Xu L, Wei Y. Electrochemical Decarboxylation Coupling of α-Keto Acids with Thiophenols: A New Avenue for the Synthesis of Thioesters. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202206023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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20
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Davies AM, D Hernandez R, Tunge JA. Direct Aroylation of Olefins through a Cobalt/Photoredox-Catalyzed Decarboxylative and Dehydrogenative Coupling with α-Oxo Acids. Chemistry 2022; 28:e202202781. [PMID: 36322775 DOI: 10.1002/chem.202202781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Indexed: 11/05/2022]
Abstract
A photoredox/cobalt dual catalytic procedure has been developed that allows benzoylation of olefins. Here the photoredox catalyst effects the decarboxylation of α-ketoacids to form benzoyl radicals. After addition of this radical to styrenes, the cobalt catalyst abstracts a H-atom. Hydrogen evolution from the putative cobalt hydride intermediate allows a Heck-like aroylation without the need for a stoichiometric oxidant. Mechanistic studies reveal that electronically different styrenes lead to a curved Hammett plot, thus suggesting a change in product-determining step in the catalytic mechanism.
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Affiliation(s)
- Alex M Davies
- Department of Chemistry, University of Kansas, 1567 Irving Hill Rd., Lawrence, KS 66045, USA
| | - Rafael D Hernandez
- Department of Chemistry, University of Kansas, 1567 Irving Hill Rd., Lawrence, KS 66045, USA
| | - Jon A Tunge
- Department of Chemistry, University of Kansas, 1567 Irving Hill Rd., Lawrence, KS 66045, USA
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21
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Cheng YY, Hou HY, Liu Y, Yu JX, Chen B, Tung CH, Wu LZ. α-Acylation of Alkenes by a Single Photocatalyst. Angew Chem Int Ed Engl 2022; 61:e202208831. [PMID: 36202761 DOI: 10.1002/anie.202208831] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Indexed: 11/05/2022]
Abstract
A direct strategy for the difunctionalization of alkenes, with acylation occurring at the more substituted alkene position, would be attractive for complex ketone synthesis. We report herein a reaction driven by a single photocatalyst that enables α-acylation in this way with the introduction of a fluoromethyl, alkyl, sulfonyl or thioether group at the β-position of the alkene with high chemo- and regioselectivity under extremely mild conditions. Crucial to the success of this method are rate differences in the kinetics of radical generation through single-electron transfer (SET) between different radical precursors and the excited photocatalyst (PC*). Thus, the β-position of the alkene is first occupied by the group derived from the radical precursor that can be generated most readily, and α-keto acids could be used as an electrophilic reagent for the α-acylation of alkenes.
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Affiliation(s)
- Yuan-Yuan Cheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hong-Yu Hou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yu Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ji-Xin Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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22
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Progress in C-C and C-Heteroatom Bonds Construction Using Alcohols as Acyl Precursors. Molecules 2022; 27:molecules27248977. [PMID: 36558110 PMCID: PMC9781314 DOI: 10.3390/molecules27248977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Acyl moiety is a common structural unit in organic molecules, thus acylation methods have been widely explored to construct various functional compounds. While the traditional Friedel-Crafts acylation processes work to allow viable construction of arylketones under harsh acid conditions, recent progress on developing acylation methods focused on the new reactivity discovery by exploiting versatile and easily accessible acylating reagents. Of them, alcohols are cheap, have low toxicity, and are naturally abundant feedstocks; thus, they were recently used as ideal acyl precursors in molecule synthesis for ketones, esters, amides, etc. In this review, we display and discuss recent advances in employing alcohols as unusual acyl sources to form C-C and C-heteroatom bonds, with emphasis on the substrate scope, limitations, and mechanism.
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23
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Du D, Peng H, He L, Bai S, Li Z, Teng H. Synthesis of remote fluoroalkenyl ketones by photo-induced ring-opening addition of cyclic alkoxy radicals to fluorinated alkenes. Org Biomol Chem 2022; 20:9313-9318. [PMID: 36408839 DOI: 10.1039/d2ob01533a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fluoroalkenyl moieties are often used as carbonyl mimics in medicine preparation, and thus the development of facile routes for the synthesis of such compounds is of great importance. In this work, we report a photocatalytic ring-opening addition of cyclic alcohols to α-(trifluoromethyl)styrenes, which underwent a proton-coupled electron transfer and β-scission process, delivering a great variety of remote gem-difluoroalkenyl ketone derivatives. This methodology can also be applied in the reaction of gem-difluorostyrenes and 1,1,2-trifluorostyrenes to access monofluoro- and 1,2-difluoroalkenyl ketones.
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Affiliation(s)
- Donghua Du
- College of Science, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Han Peng
- College of Science, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Ling He
- College of Science, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Shunpeng Bai
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430072, P. R. China
| | - Zhenghua Li
- School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China.
| | - Huailong Teng
- College of Science, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
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24
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Hu CH, Li Y. Visible-Light Photoredox-Catalyzed Decarboxylation of α-Oxo Carboxylic Acids to C1-Deuterated Aldehydes and Aldehydes. J Org Chem 2022; 88:6401-6406. [DOI: 10.1021/acs.joc.2c02299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Chun-Hong Hu
- Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
| | - Yang Li
- Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
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25
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Zhang H, Liang S, Wei D, Xu K, Zeng C. Electrocatalytic Generation of Acyl Radicals and Their Applications. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Haonan Zhang
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
| | - Sen Liang
- Beijing Key Laboratory of Flavor Chemistry Beijing Technology and Business University 100048 Beijing China
| | - Dengchao Wei
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
| | - Kun Xu
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
| | - Chengchu Zeng
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
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26
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Visible light-mediated NHCs and photoredox co-catalyzed radical 1,2-dicarbonylation of alkenes for 1,4-diketones. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1328-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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27
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Abdalkareem Jasim S, Thaeer Hammid A, Kamal Abdelbasset W, Hussien M, Urunbaevna Tillaeva G, Majdi A, Yasin G, Fakri Mustafa Y. Synthesis and Characterization of Magnetized Di(Pyridin-2-Yl)Amine-Copper (II) Complex and Its Catalytic Applications in Synthesis of Ynones and Amides. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2112713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Saade Abdalkareem Jasim
- Medical Laboratory Techniques Department, Al-Maarif University College, Al-Anbar-Ramadi, Iraq
| | - Ali Thaeer Hammid
- Computer Engineering Department, Imam Ja’afar Al-Sadiq University, Baghdad, Iraq
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia
- Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt
| | - Mohamed Hussien
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Pesticide Formulation Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Dokki, Egypt
| | - Gulnora Urunbaevna Tillaeva
- Doctor of Pharmaceutical Sciences, Tashkent Pharmaceutical Institute, Tashkent, Uzbekistan
- Department of Research and Development, School of Pharmacy, Akfa University, Tashkent, Uzbekistan
| | - Ali Majdi
- Department of Building and Construction Techniques, Al Mustaqbal University College, Hillah, Iraq
| | - Ghulam Yasin
- Department of Botany, Bahauddin Zakariya University, Multan, Pakistan
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq
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28
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Dinesh V, Nagarajan R. (NH 4) 2S 2O 8-Mediated Metal-Free Decarboxylative Formylation/Acylation of α-Oxo/Ketoacids and Its Application to the Synthesis of Indole Alkaloids. J Org Chem 2022; 87:10359-10365. [PMID: 35820161 DOI: 10.1021/acs.joc.2c00552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A metal-free method for the formylation/acylation of indoles and β-carbolines with (NH4)2S2O8 via direct decarboxylative cross-coupling of α-oxo/ketoacids in moderate to good yields is described. The reaction occurs between ambient temperature and 40 °C under mild reaction conditions with commercially available starting materials. This methodology can be expanded to some biologically active indole alkaloids like pityriacitrins, eudistomins Y1 and Y3, and marinacarbolines A-D.
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Affiliation(s)
- Votarikari Dinesh
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Rajagopal Nagarajan
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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29
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Tang L, Ouyang Y, Sun K, Yu B. Visible-light-promoted decarboxylative radical cascade cyclization to acylated benzimidazo/indolo[2,1- a]isoquinolin-6(5 H)-ones in water. RSC Adv 2022; 12:19736-19740. [PMID: 35865204 PMCID: PMC9260743 DOI: 10.1039/d2ra03467k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 06/30/2022] [Indexed: 12/25/2022] Open
Abstract
A metal-free visible-light-induced decarboxylative radical addition/cyclization procedure at room temperature was described for the synthesis of acylated benzimidazo/indolo[2,1-a]isoquinolines. The procedure was prepared in water via a reaction of functionalized 2-arylbenzoimidazoles or 2,3-diarylindoles and α-oxocarboxylic acids in the presence of phenyliodine(iii) diacetate (PIDA) in one step under mild reaction conditions. In this procedure, traditional heating and metal reagents could be effectively avoided to access 1,4-dicarbonyl-containing benzimidazo/indolo[2,1-a]isoquinoline-6(5H)-ones in satisfactory yields.
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Affiliation(s)
- Lili Tang
- Hunan Engineering Research Center for Recycled Aluminum, College of Chemistry & Materials Engineering, Huaihua University Huaihua 418008 China
| | - Yuejun Ouyang
- Hunan Engineering Research Center for Recycled Aluminum, College of Chemistry & Materials Engineering, Huaihua University Huaihua 418008 China
| | - Kai Sun
- Hunan Engineering Research Center for Recycled Aluminum, College of Chemistry & Materials Engineering, Huaihua University Huaihua 418008 China .,College of Chemistry, Zhengzhou University Zhengzhou 450001 China
| | - Bing Yu
- College of Chemistry, Zhengzhou University Zhengzhou 450001 China
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30
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Zhang M, Wu S, Wang L, Xia Z, Kuang K, Xu Q, Zhao F, Zhou N. Visible-Light-Induced Cascade Cyclization of N-Propargyl Aromatic Amines and Acyl Oxime Esters: Rapid Access to 3-Acylated Quinolines. J Org Chem 2022; 87:10277-10284. [DOI: 10.1021/acs.joc.2c01277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Man Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
- Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Lei Wang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Ziqin Xia
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Qiankun Xu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Fangli Zhao
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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31
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Katiyar S, Kumar A, Sashidhara KV. Silver-catalyzed decarboxylative cyclization for the synthesis of substituted pyrazoles from 1,2-diaza-1,3-dienes and α-keto acids. Chem Commun (Camb) 2022; 58:7297-7300. [PMID: 35678363 DOI: 10.1039/d2cc01793h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A silver-catalyzed decarboxylative cyclization process has been developed for the synthesis of substituted pyrazoles from the readily available 1,2-diaza-1,3-dienes and α-keto acids. Under the optimized conditions, a series of multisubstituted pyrazoles were well prepared in moderate to good yields. In addition, the synthetic utility of this protocol has been demonstrated by synthesizing analogs of FDA approved drugs such as anti-inflammatory drug, lonazolac and antiobesity drug, rimonabant.
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Affiliation(s)
- Sarita Katiyar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India. .,Academy of Scientific and Innovative Research, CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh - 201002, India
| | - Abhishek Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India.
| | - Koneni V Sashidhara
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India. .,Academy of Scientific and Innovative Research, CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh - 201002, India.,Sophisticated Analytical Instrument Facility & Research, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, UP, India
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32
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Singh J, Patel RI, Sharma A. Visible‐Light‐Mediated C‐2 Functionalization and Deoxygenative Strategies in Heterocyclic
N
‐Oxides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jitender Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Roshan I. Patel
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Anuj Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
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33
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Rapid syntheses of N-fused heterocycles via acyl-transfer in heteroaryl ketones. Nat Commun 2022; 13:3337. [PMID: 35680930 PMCID: PMC9184603 DOI: 10.1038/s41467-022-31063-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/30/2022] [Indexed: 11/25/2022] Open
Abstract
The wide-ranging potencies of bioactive N-fused heterocycles inspire the development of synthetic transformations that simplify preparation of their complex, diverse structural motifs. Heteroaryl ketones are ubiquitous, readily available, and inexpensive molecular scaffolds, and are thus synthetically appealing as precursors in preparing N-fused heterocycles via intramolecular acyl-transfer. To best of our knowledge, acyl-transfer of unstrained heteroaryl ketones remains to be demonstrated. Here, we show an acyl transfer-annulation to convert heteroaryl ketones to N-fused heterocycles. Driven via aromatisation, the acyl of a heteroaryl ketone can be transferred from the carbon to the nitrogen of the corresponding heterocycle. The reaction commences with the spiroannulation of a heteroaryl ketone and an alkyl bromide, with the resulting spirocyclic intermediate undergoing aromatisation-driven intramolecular acyl transfer. The reaction conditions are optimised, with the reaction exhibiting a broad substrate scope in terms of the ketone and alkyl bromide. The utility of this protocol is further demonstrated via application to complex natural products and drug derivatives to yield heavily functionalised N-fused heterocycles. Heteroaryl ketones are ubiquitous molecular scaffolds but seldom used as synthetic precusors. Here, the authors develop an acyl transfer-annulation to convert heteroaryl ketones to N-fused heterocycles, which are prevalent in bioactive molecules.
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34
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Liu H, Ren S, Ma C, Shi G, Li Y, Duan G, Ge Y. Copper‐Promoted Direct Decarboxylative C3‐Acylation of Electron‐Rich Indolizines Using α‐Keto Acids. ChemistrySelect 2022. [DOI: 10.1002/slct.202104426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hao Liu
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Shaohong Ren
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Chuanjun Ma
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Guowei Shi
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Yongchao Li
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Guiyun Duan
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
| | - Yanqing Ge
- Department of Chemistry and Pharmaceutical Engineering Shandong First Medical University & Shandong Academy of Medical Sciences No. 619, Changcheng Road Taian Shandong 271016 China
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35
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Huang L, Yang L, Wan JP, Zhou L, Liu Y, Hao G. Metal-free three-component assemblies of anilines, α-keto acids and alkyl lactates for quinoline synthesis and their anti-inflammatory activity. Org Biomol Chem 2022; 20:4385-4390. [PMID: 35579116 DOI: 10.1039/d2ob00661h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A new and metal-free three-component method for the synthesis of 2,4-disubstituted quinolines via the reactions of anilines, α-keto acids and alkyl lactates is reported. The reactions proceed in the presence of p-toluene sulfonic acid (p-TSA) and tert-butyl peroxybenzoate (TBPB) to provide diverse quinoline products via the construction of new CC double, C-C single and CN double bonds without producing any organic mass-based side product. Notably, the anti-inflammatory activity of the quinolines has been investigated by measuring their ability to inhibit NO release by lipopolysaccharide (LPS) induced RAW264.7 cells, leading to the identification of 4i, 4t and 4x as potent anti-inflammatory compounds in vitro.
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Affiliation(s)
- Lizhu Huang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Lu Yang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Liyun Zhou
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China.
| | - Guifeng Hao
- Center for General Practice Medicine, Department of Rheumatology and Immunology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou 310014, Zhejiang, China.
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36
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Kong X, Chen X, Chen Y, Cao ZY. Scalable Electrocatalytic Intermolecular Acylcyanation and Aminocyanation of Alkenes. J Org Chem 2022; 87:7013-7021. [DOI: 10.1021/acs.joc.1c03134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xianqiang Kong
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213032, China
| | - Xiaohui Chen
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213032, China
| | - Yiyi Chen
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213032, China
| | - Zhong-Yan Cao
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
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37
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Guo Y, Huang PF, Liu Y, He BH. Visible-light-induced acylation/cyclization of active alkenes: facile access to acylated isoquinolinones. Org Biomol Chem 2022; 20:3767-3778. [PMID: 35438126 DOI: 10.1039/d2ob00528j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrogen heterocycles, especially polycyclic compounds, are significant skeletons in valuable molecules. Herein, we developed an efficient and practical visible-light-induced acylation/cyclization of active alkenes with acyl oxime derivatives for constructing acylated indolo/benzimidazo-[2,1,a]isoquinolin-6(5H) ones. This reaction was compatible with various functional groups and a series of fused indole/imidazole skeletons were prepared in up to 95% yield at room temperature.
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Affiliation(s)
- Yang Guo
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Peng-Fei Huang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Bin-Hong He
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
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38
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Bhawale RT, Sarothiya D, Kshirsagar UA. Synergistic Approach for Decarboxylative Ortho C‐H Aroylation of 2‐Aryl‐pyrido[1,2‐a]pyrimidin‐4‐ones and Thiazolopyrimidinones by Merging Palladium Catalysis with Photo‐catalysis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Umesh A. Kshirsagar
- Indian Institute of Technology Indore Discipline of Chemistry Khandwa Road, Simrol. 453552 Indore INDIA
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39
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Kong X, Chen Y, Chen X, Lu ZX, Wang W, Ni SF, Cao ZY. A Practically Unified Electrochemical Strategy for Ni-Catalyzed Decarboxylative Cross-Coupling of Aryl Trimethylammonium Salts. Org Lett 2022; 24:2137-2142. [PMID: 35297250 DOI: 10.1021/acs.orglett.2c00408] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
By merging electrocatalysis and nickel catalysis, a unified strategy has been successfully applied to achieve the decarboxylative cross-coupling of four types of α-oxocarboxylic acids and their derivatives with aryl trimethylammonium salts under mild conditions. Our strategy provides a practical way for preparing aryl ketones, amides, esters, or aldehydes.
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Affiliation(s)
- Xianqiang Kong
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, No. 666 Liaohe Road, Changzhou 213032, China
| | - Yiyi Chen
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, No. 666 Liaohe Road, Changzhou 213032, China
| | - Xiaohui Chen
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, No. 666 Liaohe Road, Changzhou 213032, China
| | - Zheng-Xuan Lu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, Guangdong, China
| | - Wei Wang
- School of Chemical Engineering and Materials, Changzhou Institute of Technology, No. 666 Liaohe Road, Changzhou 213032, China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, Guangdong, China
| | - Zhong-Yan Cao
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
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40
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Liu YC, Chen P, Li XJ, Xiong BQ, Liu Y, Tang KW, Huang PF. Visible-Light-Induced Dual Acylation of Alkenes for the Construction of 3-Substituted Chroman-4-ones. J Org Chem 2022; 87:4263-4272. [PMID: 35234478 DOI: 10.1021/acs.joc.1c03100] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Heterocyclic compounds, especially oxygen-containing heterocyclic compounds, are crucial moieties in bioactive compounds and drug leads. Substituted chroman-4-ones are a kind of the most significant structural skeletons. Herein, we report a visible-light-induced dual acylation of alkenes for constructing 3-substituted chroman-4-ones, which undergoes a radical tandem cyclization reaction through carbon-carbon bond cleavage of oxime esters by a nitrogen-centered radical strategy. A series of 3-substituted chroman-4-ones were prepared with up to 86% yield.
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Affiliation(s)
- Yi-Chen Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Xue-Jiao Li
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Peng-Fei Huang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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41
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Ji X, Yang Z, Wu X, Deng GJ, Huang H. Photoredox Neutral Decarboxylative Hydroxyalkylations of Heteroarenes with α-Keto Acids. J Org Chem 2022; 87:4168-4182. [PMID: 35212524 DOI: 10.1021/acs.joc.1c03007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photoredox neutral decarboxylative hydroxyalkylations of heteroarenes with α-keto acids under mild conditions are described. Stable and readily available α-keto acids were employed as hydroxyalkylating reagents with only CO2 released as the byproduct. A range of aromatic and aliphatic α-keto acids were successfully converted into hydroxyalkylated products with various heteroarenes. This transformation proceeded through a decarboxylation/Minisci addition/SCS sequence, generating a variety of valuable hydroxyalkylated heteroarenes.
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Affiliation(s)
- Xiaochen Ji
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Zhonglin Yang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xinzhuang Wu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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42
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Liu J, Lu LQ, Luo Y, Zhao W, Sun PC, Jin W, Qi X, Cheng Y, Xiao WJ. Photoredox-Enabled Chromium-Catalyzed Alkene Diacylations. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05672] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jing Liu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Yixin Luo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Wei Zhao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Peng-Chao Sun
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, P. R. China
| | - Weiwei Jin
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, P. R. China
| | - Xiaotian Qi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Ying Cheng
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
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43
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Doyon TJ, Kumar P, Thein S, Kim M, Stitgen A, Grieger AM, Madigan C, Willoughby PH, Buller AR. Scalable and Selective β-Hydroxy-α-Amino Acid Synthesis Catalyzed by Promiscuous l-Threonine Transaldolase ObiH. Chembiochem 2022; 23:e202100577. [PMID: 34699683 PMCID: PMC8796315 DOI: 10.1002/cbic.202100577] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 01/21/2023]
Abstract
Enzymes from secondary metabolic pathways possess broad potential for the selective synthesis of complex bioactive molecules. However, the practical application of these enzymes for organic synthesis is dependent on the development of efficient, economical, operationally simple, and well-characterized systems for preparative scale reactions. We sought to bridge this knowledge gap for the selective biocatalytic synthesis of β-hydroxy-α-amino acids, which are important synthetic building blocks. To achieve this goal, we demonstrated the ability of ObiH, an l-threonine transaldolase, to achieve selective milligram-scale synthesis of a diverse array of non-standard amino acids (nsAAs) using a scalable whole cell platform. We show how the initial selectivity of the catalyst is high and how the diastereomeric ratio of products decreases at high conversion due to product re-entry into the catalytic cycle. ObiH-catalyzed reactions with a variety of aromatic, aliphatic and heterocyclic aldehydes selectively generated a panel of β-hydroxy-α-amino acids possessing broad functional-group diversity. Furthermore, we demonstrated that ObiH-generated β-hydroxy-α-amino acids could be modified through additional transformations to access important motifs, such as β-chloro-α-amino acids and substituted α-keto acids.
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Affiliation(s)
- Tyler J. Doyon
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - Prasanth Kumar
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - Sierra Thein
- Department of Chemistry, Ripon College, Ripon, WI 54971, United States
| | - Maeve Kim
- Department of Chemistry, Ripon College, Ripon, WI 54971, United States
| | - Abigail Stitgen
- Department of Chemistry, Ripon College, Ripon, WI 54971, United States
| | | | - Cormac Madigan
- Department of Chemistry, Ripon College, Ripon, WI 54971, United States
| | | | - Andrew R. Buller
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, United States
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44
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Wu X, Gao W, Zhou Y, Liu M, Wu H. Tris(pentafluorophenyl)borane‐Catalyzed Oxygen Insertion Reaction of
α
‐Diazoesters (α‐Diazoamides) with Dimethyl Sulfoxide. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiao‐Yang Wu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Wen‐Xia Gao
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Yun‐Bing Zhou
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Miao‐Chang Liu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Hua‐Yue Wu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
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45
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Shi W, Yang C, Guo L, Xia W. Photo-induced decarboxylative hydroacylation of α-oxocarboxylic acids with terminal alkynes by radical addition–translocation–cyclization in water. Org Chem Front 2022. [DOI: 10.1039/d2qo01424f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A photo-induced radical addition–translocation–cyclization (RATC) reaction of terminal alkynes and α-oxocarboxylic acids using water as the reaction medium is reported herein.
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Affiliation(s)
- Wei Shi
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Lin Guo
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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46
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Cheng Z, Gu Q, Xie Y, Zhang Y, Zeng X. BF 3·Et 2O-Mediated annulation of α-keto acids with aliphatic ketones for the synthesis of γ-hydroxy-butenolides and γ-alkylidene-butenolides. RSC Adv 2022; 12:24237-24241. [PMID: 36128547 PMCID: PMC9404108 DOI: 10.1039/d2ra04546j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/18/2022] [Indexed: 11/21/2022] Open
Abstract
Annulation reaction of α-keto acids with cyclic or acyclic aliphatic ketones is reported herein to divergently access γ-hydroxy-butenolides and γ-alkylidene-butenolides depending on the amount of BF3·Et2O. This protocol features good functional tolerance and ease of operation, to open a route to access butenolides via an annulation and dehydration process. An efficient approach to divergently access γ-hydroxy-butenolides and γ-alkylidene-butenolides via annulation reaction of α-keto acids with simple aliphatic ketones is reported herein.![]()
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Affiliation(s)
- Zhenfeng Cheng
- School of Pharmacy, Nantong University, Nantong 226001, P. R. China
| | - Qingyun Gu
- School of Pharmacy, Nantong University, Nantong 226001, P. R. China
| | - Yushan Xie
- School of Pharmacy, Nantong University, Nantong 226001, P. R. China
| | - Yanan Zhang
- School of Pharmacy, Nantong University, Nantong 226001, P. R. China
| | - Xiaobao Zeng
- School of Pharmacy, Nantong University, Nantong 226001, P. R. China
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47
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Li Y, Wu P, Yang Z. Synthesis of 2-Aryl Benzoxazoles from Benzoxazoles and α-Ketoic Acids by Photoredox Catalysis. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Yechun W, Jintao Y. Recent Advances in the Decarboxylative Acylation/Cyclization of α-Keto Acids. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202205025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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49
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Wang Z, Sun Y, Shen LY, Yang WC, Meng F, Li P. Photochemical and electrochemical strategies in C–F bond activation and functionalization. Org Chem Front 2022. [DOI: 10.1039/d1qo01512e] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The recent advances in photochemical or electrochemical C–F bond activation and functionalization have been summarized and discussed.
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Affiliation(s)
- Zhanghong Wang
- College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 550025, PR China
| | - Yu Sun
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Liu-Yu Shen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Wen-Chao Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Fei Meng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P. R. China
| | - Pinhua Li
- Anhui Laboratory of Clean Catalytic Engineering, Anhui Laboratory of Functional Complexes for Materials Chemistry and Application, College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. of China
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50
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Mikshiev VY, Tolstoy P, Tupikina EY, Puzyk AM, Vovk MA. Acid catalysis through N-protonation in undistorted carboxamides: improvement of amide proton sponge acylating ability. NEW J CHEM 2022. [DOI: 10.1039/d2nj02975h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acid catalysis of weakly distorted or undistorted carboxamides in acyl-migration reactions proceeding through N-protonation is the process with low probability in contrast to O-protonation. This circumstance made the experimental study...
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