1
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Kumar S, Arora A, Singh SK, Kumar R, Shankar B, Singh BK. Phenyliodine bis(trifluoroacetate) as a sustainable reagent: exploring its significance in organic synthesis. Org Biomol Chem 2024; 22:3109-3185. [PMID: 38529599 DOI: 10.1039/d3ob01964k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Iodine-containing molecules, especially hypervalent iodine compounds, have gained significant attention in organic synthesis. They are valuable and sustainable reagents, leading to a remarkable surge in their use for chemical transformations. One such hypervalent iodine compound, phenyliodine bis(trifluoroacetate)/bis(trifluoroacetoxy)iodobenzene, commonly referred to as PIFA, has emerged as a prominent candidate due to its attributes of facile manipulation, moderate reactivity, low toxicity, and ready availability. PIFA presents an auspicious prospect as a substitute for costly organometallic catalysts and environmentally hazardous oxidants containing heavy metals. PIFA exhibits remarkable catalytic activity, facilitating an array of consequential organic reactions, including sulfenylation, alkylarylation, oxidative coupling, cascade reactions, amination, amidation, ring-rearrangement, carboxylation, and numerous others. Over the past decade, the application of PIFA in synthetic chemistry has witnessed substantial growth, necessitating an updated exploration of this field. In this discourse, we present a concise overview of PIFA's applications as a 'green' reagent in the domain of synthetic organic chemistry. A primary objective of this article is to bring to the forefront the scientific community's awareness of the merits associated with adopting PIFA as an environmentally conscientious alternative to heavy metals.
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Affiliation(s)
- Sumit Kumar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Aditi Arora
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Sunil K Singh
- Department of Chemistry, Kirori Mal College, University of Delhi, Delhi-110007, India.
| | - Rajesh Kumar
- Department of Chemistry, R.D.S College, B.R.A. Bihar University, Muzaffarpur-842002, India
| | - Bhawani Shankar
- Department of Chemistry, Deshbandhu College, University of Delhi, Delhi-110019, India
| | - Brajendra K Singh
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
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2
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Ghosh P, Chhetri G, Mandal A, Chen Y, Hersh WH, Das S. C(sp 2)-H selenylation of substituted benzo[4,5]imidazo[2,1- b]thiazoles using phenyliodine(iii)bis(trifluoroacetate) as a mediator. RSC Adv 2024; 14:4462-4470. [PMID: 38312731 PMCID: PMC10835571 DOI: 10.1039/d4ra00057a] [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: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 02/06/2024] Open
Abstract
Herein, an expeditious metal-free regioselective C-H selenylation of substituted benzo[4,5]imidazo[2,1-b]thiazole derivatives was devised to synthesize structurally orchestrated selenoethers with good to excellent yields. This PIFA [bis(trifluoroacetoxy)iodobenzene]-mediated protocol operates under mild conditions and offers broad functional group tolerance. In-depth mechanistic investigation supports the involvement of radical pathways. Furthermore, the synthetic utility of this methodology is portrayed through gram-scale synthesis.
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Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
| | - Gautam Chhetri
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
| | - Anirban Mandal
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
| | - Yu Chen
- Department of Chemistry and Biochemistry, Queens College and the Graduate Centre of City University of New York Flushing New York 11367-1597 USA
- PhD Program in Chemistry, The Graduate Center of the City University of New York 365 Fifth Ave. New York 10016 USA
| | - William H Hersh
- Department of Chemistry and Biochemistry, Queens College and the Graduate Centre of City University of New York Flushing New York 11367-1597 USA
- PhD Program in Chemistry, The Graduate Center of the City University of New York 365 Fifth Ave. New York 10016 USA
| | - Sajal Das
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
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3
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Biswas S, Ghosh S, Das I. Supporting Electrolyte-Free Electrochemical Oxidative C-H Sulfonylation and Thiocyanation of Fused Pyrimidin-4-Ones in an All-Green Electrolytic System. Chemistry 2024; 30:e202303118. [PMID: 37934155 DOI: 10.1002/chem.202303118] [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: 09/25/2023] [Revised: 10/28/2023] [Accepted: 11/07/2023] [Indexed: 11/08/2023]
Abstract
An electrooxidative C-H functionalization is a widely accepted route to obtain sulfur-containing arenes and heteroarenes. However, this process often involves using non-recyclable supporting electrolytes, (co)solvents like hexafluoroisopropanol, additives like acid, or catalysts. The use of additional reagents can increase costs and waste, reducing atom efficiency. Moreover, unlike other nitrogen-containing heterocycles, there have only been sporadic reports of electrochemical C-H functionalization in fused pyrimidin-4-ones, and an electrolyte-free process has yet to be developed. This work demonstrates that such anodic coupling reactions can be performed in an all-green electrolytic system without using such additional electrolytes or HFIP, maintaining a high atom economy. This C-H functionalization strategy utilizes inexpensive sodium sulfinates and ammonium thiocyanate as sulfonylating and thiocyanating agents in an undivided cell at a constant current, using a mixture of CH3 CN/H2 O as solvent at room temperature. Thus, fused pyrimidin-4-ones can be selectively converted into C3-sulfonylated and -thiocyanated derivatives in moderate to good yields.
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Affiliation(s)
- Sumit Biswas
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, 700032, Kolkata, India
| | - Subhadeep Ghosh
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, 700032, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
| | - Indrajit Das
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, 700032, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), 201002, Ghaziabad, India
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4
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Choudhuri T, Paul S, Das S, Pathak DD, Bagdi AK. Visible-Light-Mediated Regioselective C3-H Selenylation of Pyrazolo[1,5- a]pyrimidines Using Erythrosine B as Photocatalyst. J Org Chem 2023. [PMID: 37302135 DOI: 10.1021/acs.joc.3c00720] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A visible-light-induced efficient methodology has been developed for the C-H selenylation of pyrazolo[1,5-a]pyrimidine derivatives employing erythrosine B as the photocatalyst. This is the first report on the regioselective selenylation of pyrazolo[1,5-a]pyrimidines. The efficiency of this methodology for the selenylation of different electron-rich heterocycles like pyrazole, indole, imidazo[1,2-a]pyridine, imidazo[2,1-b]thiazole, and 4-(phenylamino)-2H-chromen-2-one has been also demonstrated. The exploration of erythrosine B as a photocatalyst with a simple and mild procedure, wide substrate scope, and practical applicability and the employment of eco-friendly energy, oxidant, and solvent are the attractive characteristics of this methodology.
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Affiliation(s)
| | - Suvam Paul
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
| | - Sourav Das
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
| | - Devendra Deo Pathak
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM), Dhanbad 826 004, India
| | - Avik Kumar Bagdi
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
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5
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Shi J, Wang Z, Teng X, Zhang B, Sun K, Wang X. Electro-Oxidative C3-Selenylation of Pyrido[1,2- a]pyrimidin-4-ones. Molecules 2023; 28:molecules28052206. [PMID: 36903450 PMCID: PMC10005275 DOI: 10.3390/molecules28052206] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
In this work, we achieved a C3-selenylation of pyrido[1,2-a]pyrimidin-4-ones using an electrochemically driven external oxidant-free strategy. Various structurally diverse seleno-substituted N-heterocycles were obtained in moderate to excellent yields. Through radical trapping experiments, GC-MS analysis and cyclic voltammetry study, a plausible mechanism for this selenylation was proposed.
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Affiliation(s)
- Jianwei Shi
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Zhichuan Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xiaoxu Teng
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Bing Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
- Correspondence: (B.Z.); (X.W.)
| | - Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xin Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- Correspondence: (B.Z.); (X.W.)
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6
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Chen J, Xiao Y, You X, Li S, Fu Y, Ouyang Y. Electrochemical Oxidative Selenation of 4
H
‐Pyrido‐[1,2‐
a
]‐pyrimidin‐4‐ones with Diorganyldiselenides. ChemistrySelect 2023. [DOI: 10.1002/slct.202203879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jinyang Chen
- Hunan Engineering Research Center for Recycled Aluminum Huaihua University Huaihua Hunan 418008 China
- College of Chemistry and Chemical Engineering Yangtze Normal University, Fuling Chongqing 408100 China
| | - Yao Xiao
- College of Chemistry and Chemical Engineering Yangtze Normal University, Fuling Chongqing 408100 China
| | - Xianhui You
- College of Chemistry and Chemical Engineering Yangtze Normal University, Fuling Chongqing 408100 China
| | - Shiqi Li
- College of Chemistry and Chemical Engineering Yangtze Normal University, Fuling Chongqing 408100 China
| | - Yuwei Fu
- College of Chemistry and Chemical Engineering Yangtze Normal University, Fuling Chongqing 408100 China
| | - Yuejun Ouyang
- Hunan Engineering Research Center for Recycled Aluminum Huaihua University Huaihua Hunan 418008 China
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7
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Prajapati VD, Prajapati RV, Purohit VB, Avalani JR, Sapariya NH, Kamani RD, Karad SC, Raval DK. N‐Chlorosuccinimide Mediated Regioselective Sulfenylation and Halogenation of 4
H
‐Pyrido[1,2‐
a
]pyrimidin‐4‐ones at Room Temperature. ChemistrySelect 2022. [DOI: 10.1002/slct.202204126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Vaibhav D. Prajapati
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Ronak V. Prajapati
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Vishal B. Purohit
- International Centre for Research on Innovative Biobased Materials (ICRI-BioM)- International Research Agenda Lodz University of Technology Zeromskiego 116 90-924 Lodz Poland
| | - Jemin R. Avalani
- Shri A. N. Patel P. G. Institute of Science & Research Anand 388001, Gujarat India
| | | | - Ronak D. Kamani
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Sharad C. Karad
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
| | - Dipak K. Raval
- Department of Chemistry Sardar Patel University Vallabh Vidyanagar- 388120 Gujarat India
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8
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Ruan HL, Deng YX, Li ZJ, Zhao SY. Copper(I)-Catalyzed Three-Component Selenosulfonation of Maleimides with Sulfonyl Hydrazides and Diselenides via Radical Relay. J Org Chem 2022; 87:15661-15669. [PMID: 36317696 DOI: 10.1021/acs.joc.2c01907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
By employing Cu(CH3CN)4PF6 as the catalyst and tert-butyl hydroperoxide as the oxidant, we realized a three-component radical selenosulfonation of substituted maleimides, sulfonyl hydrazides, and diphenyl diselenides, providing a series of 3,4-selenosulfonylated succinimides in moderate to good yields. This reaction features broad substrate scopes, high functional-group tolerability, and feasibility of gram-scale synthesis, enabling one-step construction of C-SO2 and C-Se bonds under mild reaction conditions. Preliminary mechanistic studies support the free-radical-induced pathway.
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Affiliation(s)
- Hong-Li Ruan
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Yun-Xia Deng
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Zi-Jing Li
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai, 201620, P. R. China
| | - Sheng-Yin Zhao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai, 201620, P. R. China
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9
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do Carmo Pinheiro R, Back DF, Müller SG, Nogueira CW, Zeni G. Potassium tert-Butoxide-Promoted Tandem Cyclization of Organoselenium Alkynyl Aryl Propargyl Ethers. J Org Chem 2022; 87:13111-13123. [DOI: 10.1021/acs.joc.2c01598] [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)
- Roberto do Carmo Pinheiro
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Davi F. Back
- Departamento de Química, UFSM, Laboratório de Materiais Inorgânicos, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Sabrina G. Müller
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Cristina Wayne Nogueira
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
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10
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Liu M, Yan K, Wen J, Zhang N, Chen X, Li X, Wang X. PIFA Induced Regioselective C–H Chalcogenylation of Benzo[d]imidazo[5,1‐b]thiazoles under Mild Conditions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Liu
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Kelu Yan
- Qufu Normal University School of Chemistry and Chemical Engineering Jingxuan Road 57 273165 Qufu CHINA
| | - Jiangwei Wen
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Ning Zhang
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xinyu Chen
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xue Li
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xiu Wang
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
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11
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Li J, Liu B, Hu Y, Li X, Huo Y, Chen Q. Hypervalent iodine-induced disulfenylation of thiophene derivatives with thiophenols. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Liu XS, Li M, Dong K, Peng S, Liu L. Highly Stereoselective Synthesis of Tetrasubstituted Vinyl Selenides via Rhodium-Catalyzed [1,4]-Acyl Migration of Selenoesters and Diazo Compounds. Org Lett 2022; 24:2175-2180. [PMID: 35285649 DOI: 10.1021/acs.orglett.2c00477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we disclose a highly stereoselective Rh(II)-catalyzed 1,4-acyl rearrangement of selenium esters and α-diazo carbonyl compounds, which provides an efficient method for synthesizing tetrasubstituted vinyl selenides. Furthermore, this reaction also offers a synthetic tool for medium and large ring compounds.
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Affiliation(s)
- Xun-Shen Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Mingjia Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Kexin Dong
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Shaoting Peng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.,Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, China
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13
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Vaskevych AI, Savinchuk NO, Vaskevych RI, Rusanov EB, Vovk MV. Chalcogenation/pyrrolo(pyrido)annulation of 2-(3-butenyl)quinazolin-4(3H)-ones by arylsulfenyl(selenyl) chlorides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Yuan JW, Chen Q, Wu WT, Zhao JJ, Yang LR, Xiao YM, Mao P, Qu LB. Selectfluor-mediated construction of 3-arylselenenyl and 3,4-bisarylselenenyl spiro[4.5]trienones via cascade annulation of N-phenylpropiolamides with diselenides. NEW J CHEM 2022. [DOI: 10.1039/d2nj00869f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A cascade annulation of N-phenylpropiolamides with diselenides leading to the construction of 3-arylselenenyl spiro[4.5]trienones was realized under mild conditions with Selectfluor as the sole oxidant.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qian Chen
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Wen-Tao Wu
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Jian-Jun Zhao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yong-Mei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Pu Mao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ling-Bo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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15
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Yin Y, Li C, Sun K, Liu Y, Wang X. Radical Aminoselenation of Styrenes: Facile Access to β-Amido-selenides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202112028] [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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16
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Chalcogenative spirocyclization of N-aryl propiolamides with diselenides/disulfides promoted by Selectfluor. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2021. [DOI: 10.1515/znb-2021-0154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Abstract
A practical and efficient synthetic route to construct a variety of 3-arylselenenyl/3-arylthio spiro[4.5]trienones was developed using Selectfluor reagent as a mild oxidant. This reaction proceeds via a sequence of electrophilic cation addition, spirocyclization and dearomatization, then offers an approach to introduce Se/S-centered cation into the C–C triple bonds. The utility of this protocol were justified by the excellent compatibility of a wide range of functional groups, good yields and scalability under mild reaction conditions.
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17
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Guo L, Su M, Lv J, Liu W, Wang S. N
‐Iodosuccinimide‐promoted Regioselective Selenylation of 4
H
‐Pyrido‐[1,2‐
a
]‐pyrimidin‐4‐ones with Diselenides at Room Temperature. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lina Guo
- School of Chemistry and Chemical Engineering Guangdong Pharmaceutical University 280 Waihuan East Road Guangzhou 510006 P. R. China
| | - Meiyun Su
- School of Chemistry and Chemical Engineering Guangdong Pharmaceutical University 280 Waihuan East Road Guangzhou 510006 P. R. China
| | - Junliang Lv
- School of Chemistry and Chemical Engineering Guangdong Pharmaceutical University 280 Waihuan East Road Guangzhou 510006 P. R. China
- Guangdong Cosmetics Engineering & Technology Research Center 280 Waihuan East Road Guangzhou 510006 P. R. China
| | - Wenjie Liu
- School of Chemistry and Chemical Engineering Guangdong Pharmaceutical University 280 Waihuan East Road Guangzhou 510006 P. R. China
- Guangdong Cosmetics Engineering & Technology Research Center 280 Waihuan East Road Guangzhou 510006 P. R. China
| | - Shaohua Wang
- School of Chemistry and Chemical Engineering Guangdong Pharmaceutical University 280 Waihuan East Road Guangzhou 510006 P. R. China
- Guangdong Cosmetics Engineering & Technology Research Center 280 Waihuan East Road Guangzhou 510006 P. R. China
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18
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Ghosh P, Chhetri G, Das S. Metal free C-3 chalcogenation (sulfenylation and selenylation) of 4 H-pyrido[1,2- a]pyrimidin-4-ones. RSC Adv 2021; 11:10258-10263. [PMID: 35423521 PMCID: PMC8695620 DOI: 10.1039/d1ra00834j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/03/2021] [Indexed: 11/21/2022] Open
Abstract
An expeditious metal free C-3 chalcogenation of 4H-pyrido[1,2-a]pyrimidin-4-one has been devised to synthesize diversely orchestrated 3-ArS/ArSe derivatives in high yields (up to 95%). This operationally simple reaction proceeds under mild reaction conditions, can be executed in gram scale, and also highlights broad functional group tolerance. Preliminary experimental investigation suggests a radical mechanistic pathway for these transformations.
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Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry, University of North Bengal Darjeeling-734013 India +91-0353-2699-001 +91-0353-2776-381
| | - Gautam Chhetri
- Department of Chemistry, University of North Bengal Darjeeling-734013 India +91-0353-2699-001 +91-0353-2776-381
| | - Sajal Das
- Department of Chemistry, University of North Bengal Darjeeling-734013 India +91-0353-2699-001 +91-0353-2776-381
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19
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Yuan JW, Zhang Y, Huang GC, Ma MY, Yang TY, Yang LR, Zhang SR, Mao P, Qu LB. Site-specific C–H chalcogenation of quinoxalin-2(1 H)-ones enabled by Selectfluor reagent. Org Chem Front 2021. [DOI: 10.1039/d1qo01332g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A site-specific C6–H chalcogenation of quinoxalin-2(1H)-ones with various diselenides and dithiols is presented by employing Selectfluor reagent as an oxidant.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yang Zhang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Guang-Chao Huang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Meng-Yao Ma
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Teng-Yu Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Shou-Ren Zhang
- Henan Key Laboratory of Nanocomposites and Applications; Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, China
| | - Pu Mao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ling-Bo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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