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Chen S, Zhang Y, Liu Y, Wang Q. Highly Efficient Synthesis and Acaricidal and Insecticidal Activities of Novel Oxazolines with N-Heterocyclic Substituents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3601-3606. [PMID: 33739089 DOI: 10.1021/acs.jafc.0c05558] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nitrogen heterocycles are found in numerous natural products, pharmaceuticals, and pesticides. Herein, we report the design and synthesis of a series of novel 2,4-diphenyl-1,3-oxazolines bearing various N-heterocyclic substituents via a 4-(4-(chloromethyl)phenyl)-2-(2,6-difluorophenyl)-4,5-dihydrooxazole intermediate generated by a modified Ritter reaction. Evaluation of the activities of the oxazolines against carmine spider mites (Tetranychus cinnabarinus) by means of a leaf-dipping method showed that most of the compounds exhibited good to excellent larvicidal and ovicidal activities. In particular, five compounds (one with a phthalimidyl group and four with a substituted indolyl group) have lower LC50 values than the commercial acaricide etoxazole (0.088 mg/L against larvae and 0.128 mg/L against eggs). This work lays a foundation for the development of novel acaricides.
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Affiliation(s)
- Shilin Chen
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yu Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People's Republic of China
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2
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Guo F, You J, Wu W, Yu Y, Jing B, Liu B. Study on the Cyanide Substitution Reaction of Acetone Cannolhydrin as Cyanogen Source. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc20210203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Xia A, Lv P, Xie X, Liu Y. Nickel-Catalyzed Cyanation of Unactivated Alkyl Sulfonates with Zn(CN) 2. Org Lett 2020; 22:7842-7847. [PMID: 33006476 DOI: 10.1021/acs.orglett.0c02722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyanation of unactivated primary and secondary alkyl mesylates with Zn(CN)2 catalyzed by nickel has been developed. The reaction provides an efficient route for the synthesis of alkyl nitriles with wide substrate scope, good functional group tolerance, and compatibility with heterocyclic compounds. Mechanistic studies indicate that alkyl iodide generated in situ serves as the reactive intermediate and the gradual release of alkyl iodide is crucial for the success of the reaction.
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Affiliation(s)
- Aiyou Xia
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Peizhuo Lv
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
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4
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Kanchana U, Mathew TV, Anilkumar G. Recent advances and prospects in the nickel- catalyzed cyanation. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121337] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Miwa N, Tanaka C, Ishida S, Hirata G, Song J, Torigoe T, Kuninobu Y, Nishikata T. Copper-Catalyzed Tertiary Alkylative Cyanation for the Synthesis of Cyanated Peptide Building Blocks. J Am Chem Soc 2020; 142:1692-1697. [PMID: 31939289 DOI: 10.1021/jacs.9b11349] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this paper, we report efficient cyanation of various peptides containing the α-bromocarbonyl moiety using a Cu-catalyzed radical-based methodology employing zinc cyanide as the cyanide source. Mechanistic studies revealed that in situ formed CuCN was a key intermediate during the catalytic cycle. Our method could be useful for the synthesis of modified peptides containing quaternary carbons.
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Affiliation(s)
- Naoki Miwa
- Graduate School of Science and Engineering , Yamaguchi University , 2-16-1 Tokiwadai , Ube , Yamaguchi 755-8611 , Japan
| | - Chihiro Tanaka
- Graduate School of Science and Engineering , Yamaguchi University , 2-16-1 Tokiwadai , Ube , Yamaguchi 755-8611 , Japan
| | - Syo Ishida
- Graduate School of Science and Engineering , Yamaguchi University , 2-16-1 Tokiwadai , Ube , Yamaguchi 755-8611 , Japan
| | - Goki Hirata
- Graduate School of Science and Engineering , Yamaguchi University , 2-16-1 Tokiwadai , Ube , Yamaguchi 755-8611 , Japan
| | - Jizhou Song
- Interdisciplinary Graduate School of Engineering Sciences , Kyushu University , 6-1 Kasugakoen , Kasuga , Fukuoka 816-8580 , Japan
| | - Takeru Torigoe
- Interdisciplinary Graduate School of Engineering Sciences , Kyushu University , 6-1 Kasugakoen , Kasuga , Fukuoka 816-8580 , Japan.,Institute for Materials Chemistry and Engineering , Kyushu University , 6-1 Kasugakoen , Kasuga , Fukuoka 816-8580 , Japan
| | - Yoichiro Kuninobu
- Interdisciplinary Graduate School of Engineering Sciences , Kyushu University , 6-1 Kasugakoen , Kasuga , Fukuoka 816-8580 , Japan.,Institute for Materials Chemistry and Engineering , Kyushu University , 6-1 Kasugakoen , Kasuga , Fukuoka 816-8580 , Japan
| | - Takashi Nishikata
- Graduate School of Science and Engineering , Yamaguchi University , 2-16-1 Tokiwadai , Ube , Yamaguchi 755-8611 , Japan
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6
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Donald JR, Berrell SL. Radical cyanomethylation via vinyl azide cascade-fragmentation. Chem Sci 2019; 10:5832-5836. [PMID: 31293772 PMCID: PMC6568274 DOI: 10.1039/c9sc01370a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/04/2019] [Indexed: 12/17/2022] Open
Abstract
Herein, a novel methodology for radical cyanomethylation is described. The process is initiated by radical addition to the vinyl azide reagent 3-azido-2-methylbut-3-en-2-ol which triggers a cascade-fragmentation mechanism driven by the loss of dinitrogen and the stabilised 2-hydroxypropyl radical, ultimately effecting cyanomethylation. Cyanomethyl groups can be efficiently introduced into a range of substrates via trapping of α-carbonyl, heterobenzylic, alkyl, sulfonyl and aryl radicals, generated from a variety of functional groups under both photoredox catalysis and non-catalytic conditions. The value of this approach is exemplified by the late-stage cyanomethylation of pharmaceuticals.
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Affiliation(s)
- James R Donald
- Department of Chemistry , University of York , Heslington , York , YO10 5DD , UK .
| | - Sophie L Berrell
- Department of Chemistry , University of York , Heslington , York , YO10 5DD , UK .
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Xia A, Xie X, Chen H, Zhao J, Zhang C, Liu Y. Nickel-Catalyzed Cyanation of Unactivated Alkyl Chlorides or Bromides with Zn(CN)2. Org Lett 2018; 20:7735-7739. [DOI: 10.1021/acs.orglett.8b03539] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aiyou Xia
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Haoyi Chen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Jidong Zhao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Chunli Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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Hussain MI, Feng Y, Hu L, Deng Q, Zhang X, Xiong Y. Copper-Catalyzed Oxidative Difunctionalization of Terminal Unactivated Alkenes. J Org Chem 2018; 83:7852-7859. [DOI: 10.1021/acs.joc.8b00729] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Muhammad Ijaz Hussain
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Yangyang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Liangzhen Hu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Qingfu Deng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Xiaohui Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Yan Xiong
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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9
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Ratani TS, Bachman S, Fu GC, Peters JC. Photoinduced, Copper-Catalyzed Carbon-Carbon Bond Formation with Alkyl Electrophiles: Cyanation of Unactivated Secondary Alkyl Chlorides at Room Temperature. J Am Chem Soc 2015; 137:13902-7. [PMID: 26491957 DOI: 10.1021/jacs.5b08452] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have recently reported that, in the presence of light and a copper catalyst, nitrogen nucleophiles such as carbazoles and primary amides undergo C-N coupling with alkyl halides under mild conditions. In the present study, we establish that photoinduced, copper-catalyzed alkylation can also be applied to C-C bond formation, specifically, that the cyanation of unactivated secondary alkyl chlorides can be achieved at room temperature to afford nitriles, an important class of target molecules. Thus, in the presence of an inexpensive copper catalyst (CuI; no ligand coadditive) and a readily available light source (UVC compact fluorescent light bulb), a wide array of alkyl halides undergo cyanation in good yield. Our initial mechanistic studies are consistent with the hypothesis that an excited state of [Cu(CN)2](-) may play a role, via single electron transfer, in this process. This investigation provides a rare example of a transition metal-catalyzed cyanation of an alkyl halide, as well as the first illustrations of photoinduced, copper-catalyzed alkylation with either a carbon nucleophile or a secondary alkyl chloride.
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Affiliation(s)
- Tanvi S Ratani
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Shoshana Bachman
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Gregory C Fu
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Jonas C Peters
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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10
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Zhang J, Wu W, Ji X, Cao S. Perfluorobutyl iodide-assisted direct cyanomethylation of azoles and phenols with acetonitrile. RSC Adv 2015. [DOI: 10.1039/c5ra02242h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A perfluorobutyl iodide-assisted transition-metal-free cyanomethylation of azoles and phenols with acetonitrile in the presence of NaH has been developed. A mechanism involving the cyanomethyl radical was proposed.
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Affiliation(s)
- Juan Zhang
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Wei Wu
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Xinfei Ji
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
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