1
|
Yamaguchi T, Asano Y. Nitrile-synthesizing enzymes and biocatalytic synthesis of volatile nitrile compounds: A review. J Biotechnol 2024; 384:20-28. [PMID: 38395363 DOI: 10.1016/j.jbiotec.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024]
Abstract
Nitriles (R-CN) comprise a broad group of chemicals industrially produced and used in fine chemicals, pharmaceuticals, and bulk applications, polymer chemistry, solvents, etc. Nitriles are important starting materials for producing carboxylic acids, amides, amines, and several other compounds. In addition, some volatile nitriles have been evaluated for their potential as ingredients in fragrance and flavor formulations. However, many nitrile synthesis methods have drawbacks, such as drastic reaction conditions, limited substrate scope, lack of readily available reagents, poor yields, and long reaction times. In contrast to chemical synthesis, biocatalytic approaches using enzymes can produce nitriles without harsh conditions, such as high temperatures and pressures, or toxic compounds. In this review, we summarize the nitrile-synthesizing enzymes from microorganisms, plants, and animals. Furthermore, we introduce several examples of biocatalytic synthesis of volatile nitrile compounds, particularly those using aldoxime dehydratase.
Collapse
Affiliation(s)
- Takuya Yamaguchi
- Biotechnology Research Center and Department of Biotechnology, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
| | - Yasuhisa Asano
- Biotechnology Research Center and Department of Biotechnology, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| |
Collapse
|
2
|
Zhang Y, Shi S, Yang Z. Thiourea-Mediated Stereospecific Deoxygenation of Cyanoepoxides to Access Highly Diastereopure Alkenyl Nitriles. J Org Chem 2024; 89:2748-2758. [PMID: 38277233 DOI: 10.1021/acs.joc.3c02869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
A practical and efficient protocol for synthesis of >99% diastereopure Z- and E-alkenyl nitriles is developed, through tetramethylthiourea-mediated stereospecific deoxygenation of respective cis- and trans-cyanoepoxides in ethanol. The desired products are obtained in excellent yields.
Collapse
Affiliation(s)
- Yujie Zhang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Shukui Shi
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
- College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, P.R. China
| | - Zhanhui Yang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| |
Collapse
|
3
|
Zong ZM, Zhang L, Li GP, Wang W, Zhao XJ, He Y. Electrochemical-Induced C-N Bond Formation: A New Method to Synthesis ( Z)-Quinazolinone Oximes Using Primary Amines and Quinazolin-4(3 H)-one. Org Lett 2024; 26:1271-1276. [PMID: 38323795 DOI: 10.1021/acs.orglett.4c00107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
A novel and highly selective electrochemical method for the synthesis of diverse quinazolinone oximes via direct electrooxidation of primary amines/C(sp2)-H functionalization of oximes has been developed. The reaction is conducted in an undivided cell under constant current conditions and is oxidant-free, open-air, and eco-friendly. Notably, the protocol shows good functional group tolerance, providing versatile quinazolinone oximes in good yields. Moreover, the mechanism is investigated through control experiments and cyclic voltammogram (CV) experiments.
Collapse
Affiliation(s)
- Zhi-Min Zong
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Lizhu Zhang
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Gan-Peng Li
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Wei Wang
- School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xiao-Jing Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| |
Collapse
|
4
|
Bakhtiarian M, Khodaei MM. Introducing a protic ionic liquid from aminoethyl piperazine and triflic acid immobilized on pectin as a reusable nanocatalyst for the selective Schmidt synthesis of nitriles. Int J Biol Macromol 2024; 256:128445. [PMID: 38029916 DOI: 10.1016/j.ijbiomac.2023.128445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/24/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
Preparation of reusable protic ionic liquid, triflic acid-immobilized aminoethyl piperazine-modified pectin (Pec-AEP-TfOH), with excellent activity and selectivity in modified Schmidt synthesis of nitriles from aldehydes and Si(CH3)3N3 has been described. The structure of the catalyst was characterized using FT-IR, XRD, FE-SEM, EDX-mapping, and TGA-DTA. The reaction demonstrated a broad substrate scope for a variety of benzaldehyde derivatives with electron withdrawing/donating substituents and heterocyclic aldehydes with yields between 85 and 96 % at room temperature. Also, the Pec-AEP-TfOH showed an excellent selectivity for the nitriles in which no formanilide was obtained. Furthermore, the Pec-AEP-TfOH revealed a remarkable chemoselectivity for aldehydes in the presence of acids or ketones. It is worth noting that TfOH as a precious superacid was immobilized for the first time in the selective Schmidt synthesis of nitriles to improve the eco-friendliness and economic efficiency of the process. Furthermore, the catalyst was cost-effective, metal-free, safe, scalable, and reusable (5 times) and its heterogeneity was confirmed by hot-filtration test.
Collapse
Affiliation(s)
- Mohsen Bakhtiarian
- Department of Organic Chemistry, Razi University, 67149-67346 Kermanshah, Iran
| | - Mohammad Mehdi Khodaei
- Department of Organic Chemistry, Razi University, 67149-67346 Kermanshah, Iran; Nanoscience and Nanotechnology Research Center (NNRC), Razi University, 67149-67346 Kermanshah, Iran.
| |
Collapse
|
5
|
Sung K, Aswar VR, Song J, Jarhad DB, Jeong LS. Stereoselective Approach for the Synthesis of Diverse 1'-Modified Carbanucleosides. Org Lett 2023; 25:8377-8381. [PMID: 37947427 DOI: 10.1021/acs.orglett.3c03518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
We describe an efficient and stereoselective synthesis of 1'-substituted-β-carbocylic nucleosides 5 via gem-dichlorooxirane intermediate 7, which directly condensed with weak nucleophiles such as pyrimidines or purines. The formation of gem-dichlorooxirane 7 and direct nucleobase condensation exclusively proceeded in protic polar solvents like MeOH. This method provides a general and modular route for the late-stage diversification of 1'-modified nucleosides.
Collapse
Affiliation(s)
- Kisu Sung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Vikas R Aswar
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jiyoon Song
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Dnyandev B Jarhad
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Lak Shin Jeong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| |
Collapse
|
6
|
Tian C, Sun Q, Wang J, Chen Q, Wen Z, Borzov M, Nie W. E-Stereospecific 1,1-Carboboration of Terminal Arylalkynes with [IB(C 6F 5) 3] –. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202205029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
|
7
|
Cui Y, Zhao Y, Shen J, Zhang G, Ding C. The stable "F-SO 2 +" donor provides a mild and efficient approach to nitriles and amides. RSC Adv 2022; 12:33064-33068. [PMID: 36425170 PMCID: PMC9672908 DOI: 10.1039/d2ra05890a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 10/20/2022] [Indexed: 10/17/2023] Open
Abstract
In this update, we developed a mild, efficient and practical method using fluorosulfuryl imidazolium salt A as an environment friendly promoter for conversion of oximes to nitriles or amides via β-elimination or Beckmann rearrangement in almost quantitative yield in 10 minutes. The target products were generated in gram-scale and could be collected through crystallization without silica gel column purification in excellent yield.
Collapse
Affiliation(s)
- Yin Cui
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yiyong Zhao
- Zhejiang Ecological Environment Low Carbon Development Center Hangzhou 310014 P. R. China
| | - Junjie Shen
- Zhejiang Kefeng New Material Co. LTD Huzhou 313200 P. R. China
| | - Guofu Zhang
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Chengrong Ding
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310014 P. R. China
| |
Collapse
|
8
|
Wang H, Liang S, Wang Y, Peng S, Liu Y, Sun B, Tian H, Li N. A straightforward synthesis of methylenebisamides from amides and DMSO with a substoichiometric amount of (COCl)2. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133184] [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]
|
9
|
Jiang C, Chen Y, Gao P, Zhang S, Jia X, Yuan Y. Direct Transformation of Nitrogen-Containing Methylheteroarenes to Heteroaryl Nitrile by Sodium Nitrite. Org Lett 2022; 24:6341-6345. [PMID: 35993577 DOI: 10.1021/acs.orglett.2c02596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cyanation reaction of methylheteroarenes with acetyl chloride and sodium nitrite via the radical process in high yields is reported. According to the control experiments, the reaction mechanism underwent radical progress. It is very useful in the pharmacy industry due to its metal-free and easy treatment conditions.
Collapse
Affiliation(s)
- Chenhui Jiang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Yuqin Chen
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Pan Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Shuwei Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Xiaodong Jia
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Yu Yuan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| |
Collapse
|
10
|
Joy F, Peter F, Gokul PC, Nizam A, Chinnam S. UV-Promoted Metal- and Photocatalyst-Free Direct Conversion of Aromatic Aldehydes to Nitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022030174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
11
|
Long Y, Zheng Y, Xia Y, Qu L, Yang Y, Xiang H, Zhou X. Nickel-Catalyzed Synthesis of an Aryl Nitrile via Aryl Exchange between an Aromatic Amide and a Simple Nitrile. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01029] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yang Long
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yanling Zheng
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, P. R. China
| | - Lang Qu
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yuhe Yang
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Haifeng Xiang
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiangge Zhou
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| |
Collapse
|
12
|
Abe M, Nitta S, Miura E, Kimachi T, Inamoto K. Nitrile Synthesis via Desulfonylative-Smiles Rearrangement. J Org Chem 2022; 87:4460-4467. [PMID: 35229594 DOI: 10.1021/acs.joc.1c03011] [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
Herein, we designed a simple nitrile synthesis from N-[(2-nitrophenyl)sulfonyl]benzamides via base-promoted intramolecular nucleophilic aromatic substitution. The process features redox-neutral conditions as well as no requirement of toxic cyanide species and transition metals. Our process shows broad scope and various functional group compatibility, affording a variety of (hetero)aromatic nitriles in good to excellent yields.
Collapse
Affiliation(s)
- Masahiro Abe
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Sayasa Nitta
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Erina Miura
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Tetsutaro Kimachi
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Kiyofumi Inamoto
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| |
Collapse
|
13
|
Aneeja T, Afsina CMA, Saranya PV, Anilkumar G. Recent advances and perspectives in ruthenium-catalyzed cyanation reactions. Beilstein J Org Chem 2022; 18:37-52. [PMID: 35047081 PMCID: PMC8744463 DOI: 10.3762/bjoc.18.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/16/2021] [Indexed: 11/23/2022] Open
Abstract
The cyanation reaction has achieved rapid progress in recent times. The ability to exhibit multiple oxidation states increased the demand of ruthenium in the field of catalysis. These cyanation reactions have wide application in pharmacological and biological fields. This review gives an overview of the ruthenium-catalyzed cyanation reactions covering literature up to 2021.
Collapse
Affiliation(s)
- Thaipparambil Aneeja
- School of Chemical Sciences, Mahatma Gandhi University, PD Hills, Kottayam, Kerala, 686560, India
| | | | - Padinjare Veetil Saranya
- School of Chemical Sciences, Mahatma Gandhi University, PD Hills, Kottayam, Kerala, 686560, India
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University, PD Hills, Kottayam, Kerala, 686560, India
| |
Collapse
|
14
|
A novel phenylsulfenylation of unsaturated acids or alcohols by methyl phenyl sulfoxide and substoichiometric (COCl)2. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
15
|
Nonnhoff J, Gröger H. Process Development of the Copper(II)-Catalyzed Dehydration of a Chiral Aldoxime and Rational Selection of the Co-Substrate. ChemistryOpen 2022; 11:e202100230. [PMID: 34889532 PMCID: PMC8734112 DOI: 10.1002/open.202100230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/24/2021] [Indexed: 11/16/2022] Open
Abstract
The access towards chiral nitriles remains crucial in the synthesis of several pharmaceuticals. One approach is based on metal-catalyzed dehydration of chiral aldoximes, which are generated from chiral pool-derived aldehydes as substrates, and the use of a cheap and readily available nitrile as co-substrate and water acceptor. Dehydration of N-acyl α-amino aldoximes such as N-Boc-l-prolinal oxime catalyzed by copper(II) acetate provides access to the corresponding N-acyl α-amino nitriles, which are substructures of the pharmaceuticals Vildagliptin and Saxagliptin. In this work, a detailed investigation of the formation of the amide as a by-product at higher substrate loadings is performed. The amide formation depends on the electronic properties of the nitrile co-substrate. We could identify an acceptor nitrile which completely suppressed amide formation at high substrate loadings of 0.5 m even when being used with only 2 equivalents. In detail, utilization of trichloroacetonitrile as such an acceptor nitrile enabled the synthesis of N-Boc-cyanopyrrolidine in a high yield of 92 % and with full retention of the absolute configuration.
Collapse
Affiliation(s)
- Jannis Nonnhoff
- Chair of Industrial Organic Chemistry and BiotechnologyFaculty of ChemistryBielefeld UniversityUniversitätsstrasse 2533615BielefeldGermany
| | - Harald Gröger
- Chair of Industrial Organic Chemistry and BiotechnologyFaculty of ChemistryBielefeld UniversityUniversitätsstrasse 2533615BielefeldGermany
| |
Collapse
|
16
|
Junfei L, Yuling H, Yanhong L, Jianxin C. Synthesis of β-Nitroamide Derivatives Based on Carbamoylsilane. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202206014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
17
|
Gröger H, Nonnhoff J. Process Development of a Copper(II)-Catalyzed Dehydration of an N-Acyl Prolinal Oxime: Cascade Process and Application at an Elevated Lab Scale. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1549-0903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractChiral N-acyl amino nitriles are important structural motifs in several pharmaceuticals such as Vildagliptin or Saxagliptin. Cyanide-free access to such nitriles is provided by a copper-catalyzed dehydration of oximes, which are readily available by condensation of chiral aldehydes resulting from the chiral pool with hydroxylamine. The application in a cascade process without the need for intermediate purification as well as a demonstrated scalability show the robustness of this methodology.
Collapse
|
18
|
Xi Z, Liu Y, Wang H, Guan D, Liu Y, Sun B, Tian H, Liang S. A Convenient Method for α‐Chlorination of 1,3‐Diketones and β‐Keto Esters with DMSO or Ph
2
SO/(COCl)
2. ChemistrySelect 2021. [DOI: 10.1002/slct.202102985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Zeyu Xi
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Yuanjian Liu
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Hao Wang
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Di Guan
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Yongguo Liu
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Baoguo Sun
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Hongyu Tian
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| | - Sen Liang
- Department Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor Chemistry Institution Beijing Technology and Business University Fucheng Road 11#, Haidian District Beijing China 100048
| |
Collapse
|
19
|
Mašek T, Jahn U. Enolate-Based Regioselective Anti-Beckmann C-C Bond Cleavage of Ketones. J Org Chem 2021; 86:11608-11632. [PMID: 34369794 DOI: 10.1021/acs.joc.1c01169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The Baeyer-Villiger or Beckmann rearrangements are established methods for the cleavage of ketone derivatives under acidic conditions, proceeding for unsymmetrical precursors selectively at the more substituted site. However, the fragmentation regioselectivity cannot be switched and fragmentation at the less-substituted terminus is so far not possible. We report here that the reaction of ketone enolates with commercial alkyl nitrites provides a direct and regioselective way of fragmenting ketones into esters and oximes or ω-hydroxyimino esters, respectively. A comprehensive study of the scope of this reaction with respect to ketone classes and alkyl nitrites is presented. Control over the site of cleavage is gained through regioselective enolate formation by various bases. Oxidation of kinetic enolates of unsymmetrical ketones leads to the otherwise unavailable "anti-Beckmann" cleavage at the less-substituted side chain, while cleavage of thermodynamic enolates of the same ketones represents an alternative to the Baeyer-Villiger oxidation or the Beckmann rearrangement under basic conditions. The method is suited for the transformation of natural products and enables access to orthogonally reactive dicarbonyl compounds.
Collapse
Affiliation(s)
- Tomáš Mašek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, 166 10 Prague 6, Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, 166 10 Prague 6, Czech Republic
| |
Collapse
|
20
|
Zhou N, Wu S, Kuang K, Wu M, Zhang M. Ni-Catalyzed radical cyclization of vinyl azides with cyclobutanone oxime esters to access cyanoalkyl containing quinoxalin-2(1 H)-ones. Org Biomol Chem 2021; 19:4697-4700. [PMID: 33982738 DOI: 10.1039/d1ob00610j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nickel-catalyzed cascade addition/cyclization of 2-azido-N-arylacrylamides and cyclobutanone oxime esters for the construction of 3-cyanoalkylated quinoxalin-2(1H)-ones is developed. This reaction proceeds under mild conditions with good functional group tolerance and broad substrate scope. A preliminary mechanistic experiment indicated that the cyanoalkyl radical might be involved in this transformation.
Collapse
Affiliation(s)
- 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.
| | - 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.
| | - 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.
| | - Meixia 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.
| | - 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.
| |
Collapse
|
21
|
Huang S, Wang H, Liu Y, Sun B, Tian H, Liang S. A novel practical preparation of methyl methanethiosulfonate from dimethyl sulfoxide initiated by a catalytic amount of (COCl)2 or anhydrous HCl. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1932887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Shuai Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Hao Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Sen Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, People’s Republic of China
| |
Collapse
|
22
|
Shah C, Yadav P, Althagafi I, Nemaysh V, Shaw R, Elagamy A, Pratap R. Base mediated synthesis of functionalized 2-(alkynyl)arylnitriles and their molecular docking study with aromatase receptor. Org Biomol Chem 2021; 19:3462-3468. [PMID: 33899877 DOI: 10.1039/d1ob00165e] [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 simple, efficient, and transition metal-free approach to synthesize functionalized 2-(alkynyl)benzonitriles has been developed using suitably functionalized 2H-pyran-2-ones and 4-phenyl/trimethylsilanyl-but-3-yn-2-ones as precursors. The reaction proceeds in the presence of a base at room temperature to yield internal as well as terminal alkynes. The structure of the synthesized compound was confirmed by single-crystal X-ray analysis. The molecular docking study was performed to evaluate the binding mode of action of newly synthesized alkyne derivatives with known human breast cancer target receptor aromatase (PDB ID: 3EQM).
Collapse
Affiliation(s)
- Chandan Shah
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
| | - Pratik Yadav
- Department of Chemistry, Kirori Mal College, University of Delhi, North Campus, Delhi, 110007, India
| | - Ismail Althagafi
- Chemistry Department, Faculty of Science, Umm Al-Qura University, 21955 Makkah, Saudi Arabia
| | - Vishal Nemaysh
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
| | - Ranjay Shaw
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
| | - Amr Elagamy
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
| | - Ramendra Pratap
- Department of Chemistry, University of Delhi, North Campus, Delhi, 110007, India.
| |
Collapse
|
23
|
Wang H, Xi Z, Huang S, Ding R, Gao Y, Liu Y, Sun B, Tian H, Liang S. Convenient Preparation of N-Acylbenzoxazines from Phenols, Nitriles, and DMSO Initiated by a Catalytic Amount of (COCl) 2. J Org Chem 2021; 86:4932-4943. [PMID: 33730490 DOI: 10.1021/acs.joc.0c02768] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A convenient preparation method of N-acylbenzoxazines has been developed, in which phenols react with nitriles and dimethyl sulfoxide (DMSO) in the presence of a catalytic amount of (COCl)2 in CH3CN or chloroform to afford the corresponding N-acylbenzoxazines in moderate-to-good yields. DMSO acts as a source of HCHO, which is generated in situ from the decomposition of a methoxydimethylsulfonium salt. A regeneration cycle of the methoxydimethylsulfonium salt is proposed, which is initiated by a catalytic amount of (COCl)2.
Collapse
Affiliation(s)
- Hao Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Zeyu Xi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Shuai Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Rui Ding
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Yang Gao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Sen Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| |
Collapse
|
24
|
Jana A, Ravichandiran V, Swain SP. Application of organometallic catalysts for the synthesis of o-tolyl benzonitrile, a key starting material for sartans. NEW J CHEM 2021. [DOI: 10.1039/d1nj03380h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This review describes methods for the synthesis of o-tolyl benzonitrile, such as Pd-, Ni-catalyzed Suzuki, Negishi and Kumada couplings reactions.
Collapse
Affiliation(s)
- Anupam Jana
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, 168, Maniktala Main Road, Kolkata-700054, India
| | - V. Ravichandiran
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, 168, Maniktala Main Road, Kolkata-700054, India
| | - Sharada Prasanna Swain
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, 168, Maniktala Main Road, Kolkata-700054, India
| |
Collapse
|
25
|
Athiyarath V, Roy NJ, Vijil ATV, Sureshan KM. Synthesis of novel seven-membered carbasugars and evaluation of their glycosidase inhibition potentials. RSC Adv 2021; 11:9410-9420. [PMID: 35423467 PMCID: PMC8698521 DOI: 10.1039/d1ra00804h] [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: 01/30/2021] [Accepted: 02/23/2021] [Indexed: 12/15/2022] Open
Abstract
Here, we report the synthesis of five novel seven-membered carbasugar analogs. We adopted a chiral-pool strategy starting from the cheap and readily available d-mannitol to synthesize these ring-expanded carbasugars. Apart from several regioselective protecting group manipulations, these syntheses involved Wittig olefination and ring-closing metathesis as the key steps. We observed an unprecedented deoxygenation reaction of an allylic benzyl ether upon treatment with H2/Pd during the synthesis. Preliminary biological evaluation of the carbasugars revealed that these ring expanded carbasugars act as inhibitors of various glycosidases. This study highlights the importance of the synthesis of novel ring expanded carbasugars and their biological exploration. Here, we report the synthesis of five novel seven-membered carbasugar analogs.![]()
Collapse
Affiliation(s)
- Vignesh Athiyarath
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - Naveen J. Roy
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - A. T. V. Vijil
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - Kana M. Sureshan
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| |
Collapse
|
26
|
Xu J, Yang H, He L, Huang L, Shen J, Li W, Zhang P. Synthesis of ( E)-Quinoxalinone Oximes through a Multicomponent Reaction under Mild Conditions. Org Lett 2020; 23:195-201. [PMID: 33354970 DOI: 10.1021/acs.orglett.0c03918] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a novel method for the gram-scale synthesis of (E)-quinoxalinone oximes through a multicomponent reaction under mild conditions is described. Such a transformation was performed under transition-metal-free conditions, affording (E)-oximes in a moderate-to-good yield through recrystallization. Our methodology demonstrates a successful combination of a Mannich-type reaction and radical coupling, providing a green and practical approach for the synthesis of potentially bioactive quinoxalinone-containing molecules.
Collapse
Affiliation(s)
- Jun Xu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Huiyong Yang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Lei He
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Lin Huang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Jiabin Shen
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| |
Collapse
|
27
|
El-Faham A, Albericio F, Manne SR, de la Torre BG. OxymaPure Coupling Reagents: Beyond Solid-Phase Peptide Synthesis. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1706296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractOxymaPure [ethyl 2-cyano-2-(hydroxyimino)acetate] is an exceptional reagent with which to suppress racemization and enhance coupling efficiency during amide bond formation. The tremendous popularity of OxymaPure has led to the development of several Oxyma-based reagents. OxymaPure and its derived reagents are widely used in solid- and solution-phase peptide chemistry. This review summarizes the recent developments and applications of OxymaPure and Oxyma-based reagents in peptide chemistry, in particular in solution-phase chemistry. Moreover, the side reaction associated with OxymaPure is also discussed.1 Introduction2 Oxyma-Based Coupling Reagents2.1 Aminium/Uronium Salts of OxymaPure2.2 Phosphonium Salts of OxymaPure2.3 Oxyma-Based Phosphates2.4 Sulfonate Esters of OxymaPure2.5 Benzoate Esters of OxymaPure2.6 Carbonates of OxymaPure Derivatives3 OxymaPure Derivatives4 Other Oxime-Based Additives and Coupling Reagents5 Side Reactions Using OxymaPure Derivatives6 Conclusion7 List of Abbreviations
Collapse
Affiliation(s)
- Ayman El-Faham
- Department of Chemistry, College of Science, King Saud University
- Department of Chemistry, Faculty of Science, Alexandria University,
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal
- Department of Chemistry, College of Science, King Saud University
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC)
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona
| | - Srinivasa Rao Manne
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal
| | - Beatriz G. de la Torre
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal
| |
Collapse
|
28
|
Uludag N. An Efficient Synthesis of Nitriles from Aldoximes in the Presence of Trifluoromethanesulfonic Anhydride in Mild Conditions. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020090225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
29
|
Patil RD, Gupta MK. Methods of Nitriles Synthesis from Amines through Oxidative Dehydrogenation. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000635] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Rajendra D. Patil
- School of Chemical Sciences KCES's Moolji Jaitha College, Jalgaon (An Autonomous college affiliated to KBC, North Maharashtra University, Jalgaon) Maharashtra India- 425002
| | - Maneesh Kumar Gupta
- Department of Chemistry Hotilal Ramnath College (A constituent unit of Jai Prakash University), Amnour, Chapra Bihar 841401
| |
Collapse
|
30
|
Mudshinge SR, Potnis CS, Xu B, Hammond GB. HCl•DMPU-Assisted One-pot and Metal-free Conversion of Aldehydes to Nitriles. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2020; 22:4161-4164. [PMID: 33795972 PMCID: PMC8009297 DOI: 10.1039/d0gc00757a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report an efficient HCl•DMPU assisted one-pot conversion of aldehydes into nitriles. The use of HCl•DMPU as both an acidic source as well as a non-nucleophilic base constitutes an environmentally mild alternative for the preparation of nitriles. Our protocol proceeds smoothly without the use of toxic reagents and metal catalysts. Diverse functionalized aromatic, aliphatic and allylic aldehydes incorporating various functional groups were successfully converted to nitriles in excellent to quantitative yields. This protocol is characterized by a broad substrate scope, mild reaction conditions, and high scalability.
Collapse
Affiliation(s)
- Sagar R Mudshinge
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Chinmay S Potnis
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai, China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| |
Collapse
|
31
|
Chen Z, Zhou Q, Wang Q, Chen P, Xiong B, Liang Y, Tang K, Liu Y. Iron‐Mediated Cyanoalkylsulfonylation/Arylation of Active Alkenes with Cycloketone Oxime Derivatives via Sulfur Dioxide Insertion. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000369] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zan Chen
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
| | - Quan Zhou
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
| | - Qiao‐Lin Wang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
| | - Pu Chen
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
| | - Bi‐Quan Xiong
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
| | - Yun Liang
- Key Laboratory of the Assembly and Application of Organic FunctionalMolecules of Hunan ProvinceHunan Normal University Changsha Hunan 410081 People's Republic of China
| | - Ke‐Wen Tang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
| | - Yu Liu
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan 414006 People's Republic of China
- Key Laboratory of the Assembly and Application of Organic FunctionalMolecules of Hunan ProvinceHunan Normal University Changsha Hunan 410081 People's Republic of China
| |
Collapse
|
32
|
Wang Q, Ding R, Huang S, Liu Y, Sun B, Tian H. Preparation and odor characteristics of methylthiomethyl carboxylates. FLAVOUR FRAG J 2020. [DOI: 10.1002/ffj.3563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qiyi Wang
- Beijing Key laboratory of Flavor Chemistry Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
| | - Rui Ding
- Beijing Key laboratory of Flavor Chemistry Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
| | - Shuai Huang
- Beijing Key laboratory of Flavor Chemistry Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
| | - Yongguo Liu
- Beijing Key laboratory of Flavor Chemistry Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
| | - Baoguo Sun
- Beijing Key laboratory of Flavor Chemistry Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
| | - Hongyu Tian
- Beijing Key laboratory of Flavor Chemistry Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
| |
Collapse
|
33
|
Lan L, Huang S, Liu Y, Sun B, Tian H. Preparation and odor characteristics of nitriles derived from aldehydes. FLAVOUR FRAG J 2020. [DOI: 10.1002/ffj.3581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Liyuan Lan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key laboratory of Flavor Chemistry Beijing Technology and Business University Beijing China
| | - Shuai Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key laboratory of Flavor Chemistry Beijing Technology and Business University Beijing China
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key laboratory of Flavor Chemistry Beijing Technology and Business University Beijing China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key laboratory of Flavor Chemistry Beijing Technology and Business University Beijing China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key laboratory of Flavor Chemistry Beijing Technology and Business University Beijing China
| |
Collapse
|
34
|
Wang Y, Zhang H, Xie S, Sun H, Li X, Fuhr O, Fenske D. An Air-Stable N-Heterocyclic [PSiP] Pincer Iron Hydride and an Analogous Nitrogen Iron Hydride: Synthesis and Catalytic Dehydration of Primary Amides to Nitriles. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00880] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yajie Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Hua Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Shangqing Xie
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Hongjian Sun
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Xiaoyan Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, Jinan 250100, People’s Republic of China
| | - Olaf Fuhr
- Institut für Nanotechnologie und Karlsruher Nano-Micro-Facility, Karlsruher Institut für Technologie, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Dieter Fenske
- Institut für Nanotechnologie und Karlsruher Nano-Micro-Facility, Karlsruher Institut für Technologie, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| |
Collapse
|
35
|
Hota PK, Maji S, Ahmed J, Rajendran NM, Mandal SK. NHC-catalyzed silylative dehydration of primary amides to nitriles at room temperature. Chem Commun (Camb) 2020; 56:575-578. [PMID: 31830152 DOI: 10.1039/c9cc08413d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report an abnormal N-heterocyclic carbene catalyzed dehydration of primary amides in the presence of a silane. This process bypasses the energy demanding 1,2-siloxane elimination step usually required for metal/silane catalyzed reactions. A detailed mechanistic cycle of this process has been proposed based on experimental evidence along with computational study.
Collapse
Affiliation(s)
- Pradip Kumar Hota
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India.
| | - Subir Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India.
| | - Jasimuddin Ahmed
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India.
| | - N M Rajendran
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India.
| | - Swadhin K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India.
| |
Collapse
|
36
|
Xu J, Gao Y, Li Z, Liu J, Guo T, Zhang L, Wang H, Zhang Z, Guo K. Chlorotropylium Promoted Conversions of Oximes to Amides and Nitriles. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901537] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jiaxi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Yu Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Jingjing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Tianfo Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Lei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Haixin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Zhihao Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| |
Collapse
|
37
|
Liu Y, Wang QL, Chen Z, Li H, Xiong BQ, Zhang PL, Tang KW. Visible-light photoredox-catalyzed dual C–C bond cleavage: synthesis of 2-cyanoalkylsulfonylated 3,4-dihydronaphthalenes through the insertion of sulfur dioxide. Chem Commun (Camb) 2020; 56:3011-3014. [DOI: 10.1039/c9cc10057a] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel visible-light photoredox-catalyzed dual C–C bond cleavage of methylenecyclopropanes and cycloketone oximes for accessing 2-cyanoalkylsulfonated 3,4-dihydronaphthalenes is established.
Collapse
Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering
- Hunan Institute of Science and Technology
- Yueyang 414006
- China
| | - Hua 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
| | - Pan-Liang Zhang
- 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
| |
Collapse
|
38
|
Sun F, Yin T, Wang Y, Feng A, Yang L, Wu W, Yu C, Li T, Wei D, Yao C. A combined experimental and computational study of NHC-promoted desulfonylation of tosylated aldimines. Org Chem Front 2020. [DOI: 10.1039/c9qo01402k] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
NHC-catalyzed mild desulfonylation of tosylated aldimines provides efficient access to aryl nitriles with broad substrate scope. DFT calculations demonstrate that the reaction undergoes multiple stepwise processes.
Collapse
|
39
|
Ganesan M, Nagaraaj P. Recent developments in dehydration of primary amides to nitriles. Org Chem Front 2020. [DOI: 10.1039/d0qo00843e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Various dehydration methods available for the direct conversion of amides to the corresponding nitriles have been reviewed.
Collapse
Affiliation(s)
- Muthupandian Ganesan
- Toxicology Division
- Regional Forensic Science Laboratory
- Forensic Sciences Department
- Chennai-4
- India
| | | |
Collapse
|
40
|
Liu J, Zhang C, Zhang Z, Wen X, Dou X, Wei J, Qiu X, Song S, Jiao N. Nitromethane as a nitrogen donor in Schmidt-type formation of amides and nitriles. Science 2019; 367:281-285. [DOI: 10.1126/science.aay9501] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/20/2019] [Indexed: 12/13/2022]
Abstract
The Schmidt reaction has been an efficient and widely used synthetic approach to amides and nitriles since its discovery in 1923. However, its application often entails the use of volatile, potentially explosive, and highly toxic azide reagents. Here, we report a sequence whereby triflic anhydride and formic and acetic acids activate the bulk chemical nitromethane to serve as a nitrogen donor in place of azides in Schmidt-like reactions. This protocol further expands the substrate scope to alkynes and simple alkyl benzenes for the preparation of amides and nitriles.
Collapse
Affiliation(s)
- Jianzhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Cheng Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ziyao Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaojin Wen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaodong Dou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
41
|
Lüdecke N, Weidner SM, Schlaad H. Poly(2-oxazoline)s Based on Phenolic Acids. Macromol Rapid Commun 2019; 41:e1900404. [PMID: 31583798 DOI: 10.1002/marc.201900404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/06/2019] [Indexed: 12/21/2022]
Abstract
A series of phenolic-acid-based 2-oxazoline monomers with methoxy-substituted phenyl and cinnamyl side chains is synthesized and polymerized in a microwave reactor at 140 °C using methyl tosylate as the initiator. The obtained poly(2-oxazoline)s are characterized by NMR spectroscopy, MALDI-TOF mass spectrometry, and size-exclusion chromatography (SEC). Kinetic studies reveal that the microwave-assisted polymerization is fast and completed within less than ≈10 min for low monomer-to-initiator ratios of ≤25. Polymers with number-average molar masses of up to 6500 g mol-1 and low dispersity (1.2-1.3) are produced. The aryl methyl ethers are successfully cleaved with aluminum triiodide/N,N'-diisopropylcarbodiimide to give a poly(2-oxazoline) with pendent catechol groups.
Collapse
Affiliation(s)
- Nils Lüdecke
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476, Potsdam, Germany
| | - Steffen M Weidner
- Federal Institute for Materials Research and Testing - BAM 1.3, Richard-Willstätter-Straße 11, 12489, Berlin, Germany
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476, Potsdam, Germany
| |
Collapse
|
42
|
Li YH, Akula PS, Hong BC, Peng CH, Lee GH. Direct Transformation of Nitroalkanes to Nitriles Enabled by Visible-Light Photoredox Catalysis and a Domino Reaction Process. Org Lett 2019; 21:7750-7754. [PMID: 31513414 DOI: 10.1021/acs.orglett.9b02682] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A mild and convenient process for direct transformation of nitroalkanes to the corresponding nitriles was developed using a visible-light photoredox catalysis strategy with household decorative blue LEDs and the additives of Et3N and DIPIBA (or DIPEA). Application of the process in secondary nitroalkanes bearing a β-alcohol resulted in a domino process of the retro-Henry reaction and the subsequent acetalization, aldol, cyanohydrin, and ring-contraction reactions with stereoselectivities. The photocatalytic reaction was demonstrated by a continuous flow method.
Collapse
Affiliation(s)
- Yu-Hsun Li
- Department of Chemistry and Biochemistry , National Chung Cheng University , Chia-Yi 621 , Taiwan, R.O.C
| | - Pavan Sudheer Akula
- Department of Chemistry and Biochemistry , National Chung Cheng University , Chia-Yi 621 , Taiwan, R.O.C
| | - Bor-Cherng Hong
- Department of Chemistry and Biochemistry , National Chung Cheng University , Chia-Yi 621 , Taiwan, R.O.C
| | - Chieh-Hung Peng
- Department of Chemistry and Biochemistry , National Chung Cheng University , Chia-Yi 621 , Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Instrumentation Center , National Taiwan University , Taipei , 106 , Taiwan, R.O.C
| |
Collapse
|
43
|
Ding R, Liu Y, Liu L, Li H, Tao S, Sun B, Tian H. A facile synthesis of γ-butenolides via cyclization of 3-alkenoic acids with dimethyl sulfoxide and oxalyl bromide. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1652914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Rui Ding
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Lei Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Huimin Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Sichen Tao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China
| |
Collapse
|
44
|
Affiliation(s)
- Mohammed H. Al‐Huniti
- Research and Development PatheonThermo Fisher Scientific 309 Delaware St. Greenville Sc 29605 USA
| | - Mitchell P. Croatt
- Department of Chemistry and BiochemistryUniversity of North Carolina at Greensboro 435 Sullivan Science Building Greensboro NC 27402 USA
| |
Collapse
|
45
|
Meng H, Gao S, Luo M, Zeng X. Iron and Phenol Co-Catalysis for Rapid Synthesis of Nitriles under Mild Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900831] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hong Meng
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| | - Sen Gao
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| | - Meiming Luo
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| | - Xiaoming Zeng
- Key Laboratory of Green Chemistry and Technology (MOE); College of Chemistry; Sichuan University; 610064 Chengdu People's Republic of China
| |
Collapse
|
46
|
Mohammadkhani L, Heravi MM. Oxalyl Chloride: A Versatile Reagent in Organic Transformations. ChemistrySelect 2019. [DOI: 10.1002/slct.201900120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Leyla Mohammadkhani
- Department of Chemistry, School of SciencesAlzahra University Vanak, Tehran Iran
| | - Majid M. Heravi
- Department of Chemistry, School of SciencesAlzahra University Vanak, Tehran Iran
| |
Collapse
|
47
|
Ramirez NP, König B, Gonzalez-Gomez JC. Decarboxylative Cyanation of Aliphatic Carboxylic Acids via Visible-Light Flavin Photocatalysis. Org Lett 2019; 21:1368-1373. [DOI: 10.1021/acs.orglett.9b00064] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nieves P. Ramirez
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Burkhard König
- Faculty of Chemistry and Pharmacy, University of Regensburg, D-93040 Regensburg, Germany
| | - Jose C. Gonzalez-Gomez
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| |
Collapse
|
48
|
Lu K, Wei X, Li Q, Li Y, Ji L, Hua E, Dai Y, Zhao X. Synthesis of α-trifluoromethyl ethanone oximes via the three-component reaction of aryl-substituted ethylenes, tert-butyl nitrite, and the Langlois reagent. Org Chem Front 2019. [DOI: 10.1039/c9qo00940j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A three-component reaction of aryl-substituted ethylenes, tert-butyl nitrite, and the Langlois reagent to synthesize a-trifluoromethyl ethanone oximes was developed.
Collapse
Affiliation(s)
- Kui Lu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
- China
| | - Xianfu Wei
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
- China
| | - Quan Li
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
- China
| | - Yuxuan Li
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
- China
| | - Liangshuo Ji
- College of Chemistry
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key laboratory of Inorganic-organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Normal University
| | - Erbing Hua
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
- China
| | - Yujie Dai
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
- China
| | - Xia Zhao
- College of Chemistry
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key laboratory of Inorganic-organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Normal University
| |
Collapse
|