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Lv X, Liu S, Guo Y, Gao L, Zhao L, Zhang J, Rong L. Meerwein Arylation of Aryl(alkyl)idenemalononitriles and Diazonium Salts for the Synthesis of 2-(Aryl(alkyl)/arylmethylene)malononitrile Derivatives. J Org Chem 2023; 88:12421-12431. [PMID: 37563911 DOI: 10.1021/acs.joc.3c01161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
A metal-free Meerwein arylation reaction from aryl(alkyl)idenemalononitriles and diazonium salts for the synthesis of 2-(aryl(alkyl)/arylmethylene)malononitrile derivatives under mild conditions was well developed. Different from the general addition reactions between alkenes and diazonium salts, this study performed the traditional coupling reaction for the formation of C(sp2)-C(sp2) bond arylation products. The radical reaction mechanism was well verified in the control experiments. The other advantages of the approach are broad-scope substrates and good group tolerance. Moreover, the obtained products can be readily converted into high-value asymmetric ketones and hydrogenation reactions.
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Affiliation(s)
- Xiaoqing Lv
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Shengjun Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Yu Guo
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Lijiu Gao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Liming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Jinpeng Zhang
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou, 221004 Jiangsu, P. R. China
| | - Liangce Rong
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
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2
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Liu T, Xue F, Chen Z, Cheng Z, Cao W, Wang B, Jin W, Xia Y, Zhang Y, Liu C. Bi4O5Br2 catalyzed selective oxidative of C=C double bonds to ketones with molecular oxygen under visible-light irradiation. J Catal 2022. [DOI: 10.1016/j.jcat.2022.08.029] [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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3
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Wang Y, Sun W, Lu R, Wen Z, Yao J, Li H. Inorganic Bases Enhanced Organocatalysis for Aerobic αHydroxylation of Aliphatic Cycloketones. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yongtao Wang
- Zhejiang University Department of Chemistry CHINA
| | - Wenjing Sun
- Zhejiang University Department of Chemistry CHINA
| | - Rui Lu
- Zhejiang University Department of Chemistry CHINA
| | - Zeyu Wen
- Zhejiang University Department of Chemistry CHINA
| | - Jia Yao
- Zhejiang University Department of Chemistry CHINA
| | - Haoran Li
- Zhejiang University Department of Chemistry Zheda Road 310027 Hangzhou CHINA
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Settipalli PC, Anwar S. A triple cascade approach towards the diastereoselective synthesis of spiro trans-decalinol scaffolds. Chem Commun (Camb) 2022; 58:10400-10403. [PMID: 36039826 DOI: 10.1039/d2cc03562f] [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
A [2+2+2] annulation reaction between cyclohexanone, β-nitrostyrene and 2-arylidene-1,3-indanedione afforded multisubstituted spiro trans-decalinol derivatives in high chemical yields (up to 75%) and excellent diastereoselectivity (up to >20 : 1) at room temperature. This one-pot three-component system follows a triple cascade sequence via the Michael/nitro-Michael/Aldol process, resulting in the formation of three C-C bonds, five contiguous stereocenters as well as a spiro quaternary carbon center.
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Affiliation(s)
- Poorna Chandrasekhar Settipalli
- Deparment of Chemistry, School of Applied Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University), Vadlamudi-522 213, Guntur, Andhra Pradesh, India.
| | - Shaik Anwar
- Deparment of Chemistry, School of Applied Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University), Vadlamudi-522 213, Guntur, Andhra Pradesh, India.
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Qing B, Bai X, Huang L, Zhao J, Zhou P, Feng H. Vinyl fluorosulfonamide: a practical vinyl electrophilic reagent for mild and efficient synthesis of ketones under catalyst- and additive-free conditions. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2085276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Bin Qing
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Xueying Bai
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Jiahui Zhao
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Pengyu Zhou
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China
- Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, China
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Deuterated N-difluoromethylthiophthalimide: A stable, scalable reagent for radical and electrophilic deuteriodifluoromethylthiolations. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Babaee S, Zarei M, Zolfigol MA. MOF-Zn-NHC as an efficient N-heterocyclic carbene catalyst for aerobic oxidation of aldehydes to their corresponding carboxylic acids via a cooperative geminal anomeric based oxidation. RSC Adv 2021; 11:36230-36236. [PMID: 35492781 PMCID: PMC9043340 DOI: 10.1039/d1ra05494e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/17/2021] [Indexed: 12/21/2022] Open
Abstract
As an efficient heterogenous N-heterocyclic carbene (NHC) catalyst, MOF-Zn-NHC was used in the aerobic oxidation of aryl aldehydes to their corresponding carbocyclic acids via an anomeric based oxidation. Features such as mild reaction conditions and no need for a co-catalyst or oxidative reagent can be considered as the major advantages of the presented method in this study. As an efficient heterogenous N-heterocyclic carbene (NHC) catalyst, MOF-Zn-NHC was used in the aerobic oxidation of aryl aldehydes to their corresponding carbocyclic acids via an anomeric based oxidation.![]()
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Affiliation(s)
- Saeed Babaee
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988138380709 +988138282807
| | - Mahmoud Zarei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988138380709 +988138282807
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +988138380709 +988138282807
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Visible-light-initiated tandem synthesis of difluoromethylated oxindoles in 2-MeTHF under additive-, metal catalyst-, external photosensitizer-free and mild conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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10
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Electrochemical transient iodination and coupling for selenylated 4-anilinocoumarin synthesis. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.03.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Yu T, Guo M, Wen S, Zhao R, Wang J, Sun Y, Liu Q, Zhou H. Poly(ethylene glycol) dimethyl ether mediated oxidative scission of aromatic olefins to carbonyl compounds by molecular oxygen. RSC Adv 2021; 11:13848-13852. [PMID: 35423908 PMCID: PMC8697527 DOI: 10.1039/d1ra02007b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/05/2021] [Indexed: 12/16/2022] Open
Abstract
A simple, and practical oxidative scission of aromatic olefins to carbonyl compounds using O2 as the sole oxidant with poly(ethylene glycol) dimethyl ether as a benign solvent has been developed. A wide range of monosubstituted, gem-disubstituted, 1,2-disubstituted, trisubstituted and tetrasubstituted aromatic olefins was successfully converted into the corresponding aldehydes and ketones in excellent yields even with gram–scale reaction. Some control experiments were also conducted to support a possible reaction pathway. A simple and practical O2 oxidized scission of monosubstituted, gem- and 1,2-disubstituted, trisubstituted and tetrasubstituted aromatic olefins to aldehydes and ketones in PEGDME has been developed.![]()
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Affiliation(s)
- Tao Yu
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Mingqing Guo
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Simiaomiao Wen
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Rongrong Zhao
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Jinlong Wang
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Yanli Sun
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Qixing Liu
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Haifeng Zhou
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
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Chen JY, Zhong CT, Gui QW, Zhou YM, Fang YY, Liu KJ, Lin YW, Cao Z, He WM. Practical and sustainable approach for clean preparation of 5-organylselanyl uracils. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.034] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Aman H, Chiu WH, Liu PH, Chuang GJ. Radical-mediated aerobic oxidation of substituted styrenes and stilbenes. NEW J CHEM 2021. [DOI: 10.1039/d1nj04755h] [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
A 2,2-azobis(isobutyronitrile)-catalyzed oxidative cleavage of alkenes with molecular oxygen as the oxidant was described.
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Affiliation(s)
- Hasil Aman
- Department of Chemistry Chung Yuan Christian University Chungli 32023, Taoyuan city, Taiwan
| | - Wei-Hua Chiu
- Department of Chemistry Chung Yuan Christian University Chungli 32023, Taoyuan city, Taiwan
| | - Pin-Heng Liu
- Department of Chemistry Chung Yuan Christian University Chungli 32023, Taoyuan city, Taiwan
| | - Gary Jing Chuang
- Department of Chemistry Chung Yuan Christian University Chungli 32023, Taoyuan city, Taiwan
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Luo XL, Ge D, Yu ZL, Chu XQ, Xu P. Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols. RSC Adv 2021; 11:30937-30942. [PMID: 35498930 PMCID: PMC9041312 DOI: 10.1039/d1ra05134b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/24/2021] [Indexed: 01/23/2023] Open
Abstract
A straightforward aerobic oxidative esterification of aryl aldehydes with alcohols has been developed for the synthesis of substituted esters by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst. Air is used as a green terminal oxidant. The reaction is a useful addition to the existing NHC-catalytic oxidative esterification. An aerobic oxidative esterification of aryl aldehydes with alcohols has been developed by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst.![]()
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Affiliation(s)
- Xin-Long Luo
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Danhua Ge
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zi-Lun Yu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xue-Qiang Chu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Pei Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
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Chen XJ, Gui QW, Yi R, Yu X, Wu ZL, Huang Y, Cao Z, He WM. Copper(i)-catalyzed intermolecular cyanoarylation of alkenes: convenient access to α-alkylated arylacetonitriles. Org Biomol Chem 2020; 18:5234-5237. [PMID: 32602499 DOI: 10.1039/d0ob01055c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Cu(i)-catalyzed intermolecular cyanoarylation of alkenes with diaryliodonium salts as a radical arylating reagent and tetra-butylammonium cyanide as an electrophilic cyanating reagent was established. A broad range of α-alkylated arylacetonitriles were efficiently constructed in good to excellent yields under base- and oxidant-free and mild conditions.
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Affiliation(s)
- Xin-Jie Chen
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Qing-Wen Gui
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
| | - Rongnan Yi
- Department of Chemistry, Hunan University, Changsha 410082, China
| | - Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Zhi-Lin Wu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Ying Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
| | - Wei-Min He
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
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Xiao Y, Yi Z, Yu X, Xiao F. Copper-catalyzed synthesis of α-ketoamides using water and dioxygen as the oxygen source. RSC Adv 2020; 10:29114-29118. [PMID: 35521140 PMCID: PMC9055944 DOI: 10.1039/d0ra05921h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/27/2020] [Indexed: 01/22/2023] Open
Abstract
The reaction employing H2O and O2 as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This copper-catalyzed reaction is carried out in a tandem manner constituted by the hydroamination of alkyne, hydration of vinyl–Cu complex and subsequent oxidation. Isotope labeling and radical capture experiments reveal that the oxygen atom of α-ketone at α-ketoamides derives from O2 and the oxygen atom of amide group originates from H2O. The reaction employing H2O and O2 as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This Cu-catalyzed reaction is carried out in a tandem manner constituted by hydroamination of alkyne, hydration of vinyl–Cu complex and subsequent oxidation.![]()
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Affiliation(s)
- Yuanyuan Xiao
- Department of Health Toxicology
- Xiangya School of Public Health
- Central South University
- Changsha 410078
- PR China
| | - Zijuan Yi
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Xianyong Yu
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Fang Xiao
- Department of Health Toxicology
- Xiangya School of Public Health
- Central South University
- Changsha 410078
- PR China
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