1
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Sterligov GK, Rasskazova MA, Drokin EA, Isaeva DK, Ageshina AA, Rzhevskiy SA, Shurupova OV, Topchiy MA, Minaeva LI, Asachenko AF. Metal-Free Synthesis of 2-(per)Fluoroalkyl-3-nitro Indoles via Intramolecular Cyclization of Amides. J Org Chem 2024; 89:14028-14037. [PMID: 39264970 DOI: 10.1021/acs.joc.4c01430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2024]
Abstract
A metal-free intramolecular cyclization of N-acyl amides for the synthesis of 3-nitro-2-(per)fluoroalkyl indoles is reported. Good functional group tolerance and a broad range of substrates are the features of this approach. The developed method is easy to operate and is suitable for the preparation of 2-difluoromethyl/trifluoromethyl/perfluoroethyl/perfluoropropyl indoles in yields of 84 to 99%. Also, the application of this protocol in the gram scale is shown.
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Affiliation(s)
- Grigorii K Sterligov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Maria A Rasskazova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Egor A Drokin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Dilshodakhon K Isaeva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Alexandra A Ageshina
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Sergey A Rzhevskiy
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Olga V Shurupova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Maxim A Topchiy
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Lidiya I Minaeva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
| | - Andrey F Asachenko
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskiy prospect 29, 119991 Moscow, Russia
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2
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Pulikkottil F, Burnett JS, Saiter J, Goodall CAI, Claringbold B, Lam K. eFluorination for the Rapid Synthesis of Carbamoyl Fluorides from Oxamic Acids. Org Lett 2024; 26:6103-6108. [PMID: 39016380 PMCID: PMC11287745 DOI: 10.1021/acs.orglett.4c01605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 07/18/2024]
Abstract
In this letter, we disclose the anodic oxidation of oxamic acids in the presence of Et3N·3HF as a practical, scalable, and robust method to rapidly access carbamoyl fluorides from readily available and stable precursors. The simplicity of this method also led us to develop the first flow electrochemical preparation of carbamoyl fluorides, demonstrating scale-up feasibility as a proof of concept.
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Affiliation(s)
| | | | - Jérémy Saiter
- School of Science, Faculty
of Engineering and Science, University of
Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, United Kingdom
| | - Charles A. I. Goodall
- School of Science, Faculty
of Engineering and Science, University of
Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, United Kingdom
| | - Bini Claringbold
- School of Science, Faculty
of Engineering and Science, University of
Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, United Kingdom
| | - Kevin Lam
- School of Science, Faculty
of Engineering and Science, University of
Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, United Kingdom
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3
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Hu C, Jiang L, Guo Z, Mumtaz Y, Liu J, Qin J, Chen Y, Lin Z, Yi W. Synthesis of N-Difluoromethyl Carbonyl Compounds from N-Difluoromethylcarbamoyl Fluorides. Angew Chem Int Ed Engl 2024; 63:e202319758. [PMID: 38353649 DOI: 10.1002/anie.202319758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Indexed: 03/06/2024]
Abstract
Fluorinated small molecules are commonly used in functional small-molecule chemistry, and N-difluoromethyl (N-CF2H) compounds are particularly intriguing due to their unique and unexplored physiochemical properties. However, despite limited progress, a general methodological approach to the synthesis of N-CF2H compounds remains elusive. Here, guided by computation, we present a simple and practical protocol to access N-CF2H amides and related carbonyl derivatives. The protocol involves a one-pot conversion of thioformamides through desulfurization-fluorination and acylation, providing N-difluoromethylcarbamoyl fluoride building blocks that can be further diversified to a variety of unexplored N-CF2H carbonyl compounds with rich functionality. Additionally, preliminary studies on their properties and stability showcased their potential application in pharmaceuticals and agrochemicals.
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Affiliation(s)
- Chunyang Hu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Lvqi Jiang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zihao Guo
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yasir Mumtaz
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Jiarong Qin
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yixing Chen
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zhongquan Lin
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Wenbin Yi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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4
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Zhang RZ, Gao YF, Yu JX, Xu C, Wang M. N-CF 3 Imidoyl Chlorides: Scalable N-CF 3 Nitrilium Precursors for the Construction of N-CF 3 Compounds. Org Lett 2024; 26:2641-2645. [PMID: 38511584 DOI: 10.1021/acs.orglett.4c00708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
A wide range of N-CF3 imidoyl chlorides were synthesized for the first time via the N-trifluoromethylation of nitriles in DCM by using AlCl3-activated PhICF3Cl as the CF3 source. The reactions of them with N-/O-/S-nucleophiles, as well as with 1,3-dipoles, were carried out to efficiently deliver N-CF3 amidines/imidates/thioimidates and N-CF3 azoles, demonstrating that they are a class of scalable NCF3-containing synthons in the synthesis of N-CF3 compounds.
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Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Yan Fang Gao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Jian Xin Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
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5
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Zivkovic F, Wycich G, Liu L, Schoenebeck F. Access to N-Difluoromethyl Amides, (Thio)Carbamates, Ureas, and Formamides. J Am Chem Soc 2024; 146:1276-1281. [PMID: 38180777 PMCID: PMC10913043 DOI: 10.1021/jacs.3c13711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/30/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
The first efficient access to N-difluoromethyl amides, carbamates, thiocarbamates, ureas, formamides, and their derivatives is reported herein. The synthetic strategy relies on the initial synthesis and straightforward derivatization of N-CF2H carbamoyl fluorides, which were prepared through a desulfurization-fluorination of thioformamides (─NH─C(H)═S) coupled with carbonylation. The newly made N-CF2H carbonyl compounds proved to be highly robust and compatible with numerous chemical transformations and downstream derivatizations, underscoring the potential of this novel motif as a building block in complex functional molecules.
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Affiliation(s)
- Filip
G. Zivkovic
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Gina Wycich
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Linhao Liu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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6
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Baris N, Dračínský M, Tarábek J, Filgas J, Slavíček P, Ludvíková L, Boháčová S, Slanina T, Klepetářová B, Beier P. Photocatalytic Generation of Trifluoromethyl Nitrene for Alkene Aziridination. Angew Chem Int Ed Engl 2024; 63:e202315162. [PMID: 38081132 DOI: 10.1002/anie.202315162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Indexed: 01/06/2024]
Abstract
N-Trifluoromethylated organics may be applied in drug design, agrochemical synthesis, and materials science, among other areas. Yet, despite recent advances in the synthesis of aliphatic, cyclic and heterocyclic N-trifluoromethyl compounds, no strategy based on trifluoromethyl nitrene has hitherto been explored. Here we describe the formation of triplet trifluoromethyl nitrene from azidotrifluoromethane, a stable and safe-to-use precursor, by visible light photocatalysis. The addition of CF3 N to alkenes via biradical intermediates afforded previously unknown aziridines substituted with trifluoromethyl group on the nitrogen atom. The obtained aziridines were converted into either N-trifluoromethylimidazolines, via formal [3+2] cycloaddition with nitriles, mediated by a Lewis acid, or into N-trifluoromethylaldimines, via ring opening and aryl group migration mediated by a strong Brønsted acid. Our findings open new opportunities for the development of novel classes of N-CF3 compounds with possible applications in the life sciences.
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Affiliation(s)
- Norbert Baris
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Ján Tarábek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Josef Filgas
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Petr Slavíček
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Lucie Ludvíková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Soňa Boháčová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Tomáš Slanina
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
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7
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Cho H, Jang S, Lee K, Cha D, Min SJ. Visible-Light-Induced DDQ-Catalyzed Fluorocarbamoylation Using CF 3SO 2Na and Oxygen. Org Lett 2023. [PMID: 37987781 DOI: 10.1021/acs.orglett.3c03335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
The synthesis of carbamoyl fluorides via visible-light induced DDQ catalysis of secondary amines is described. This protocol employs sodium trifluorosulfinate and molecular oxygen for the in situ generation of carbonyl difluoride, which is reacted with amines to afford the corresponding carbamoyl fluorides efficiently. Moreover, carbamoyl fluorides are easily transformed to synthetically useful carbonyl compounds under mild reaction conditions.
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Affiliation(s)
- Huijeong Cho
- Department of Applied Chemistry, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Seonga Jang
- Department of Applied Chemistry, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Kangjoo Lee
- Department of Applied Chemistry, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Dohoon Cha
- Department of Applied Chemistry, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Sun-Joon Min
- Department of Applied Chemistry, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
- Department of Chemical & Molecular Engineering, Hanyang University ERICA, Ansan, Gyeonggi-do 15588, Republic of Korea
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8
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Tao M, Qian J, Chen Z, An LK, Wilson DM, Liu J. General Synthesis of N-CF 3 Heteroaryl Amides via Successive Fluorination and Acylation of Sterically Hindered Isothiocyanates. J Org Chem 2023; 88:15237-15248. [PMID: 37823733 DOI: 10.1021/acs.joc.3c01740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
We report the one-pot synthesis of N-CF3 heteroaryl amides (NTFMHA) from heteroaryl carboxylic acids and sterically hindered isothiocyanates, including various amino acid analogues, in the presence of AgF. The key to this reaction is the utilization of free heteroaryl acyl chlorides, rather than their corresponding hydrochloride salts. This method represents a complementary method of our previous work and enables modification to a variety of previously inaccessible structures, including α-tertiary amines and N-CF3-modified pharmaceuticals.
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Affiliation(s)
- Min Tao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China
| | - Jiasheng Qian
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China
| | - Zuanguang Chen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China
| | - Lin-Kun An
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China
| | - David M Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Jianbo Liu
- Department of Nuclear Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, Guangdong, China
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9
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Bakhanovich O, Klepetářová B, Beier P. Rhodium(II)-catalyzed transannulation approach to N-fluoroalkylated indoles. Org Biomol Chem 2023; 21:7924-7927. [PMID: 37743800 DOI: 10.1039/d3ob01415k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Copper(I)-catalyzed cycloaddition of substituted cyclohexenyl acetylenes with azido(per)fluoroalkanes afforded 4-cyclohexenyl-substituted N-(per)fluoroalkylated 1,2,3-triazoles. Their rhodium(II)-catalyzed transannulation led to fused N-(per)fluoroalkyl pyrroles and subsequent oxidation provided N-(per)fluoroalkyl indoles.
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Affiliation(s)
- Olga Bakhanovich
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10 Prague 6, Czech Republic.
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague, Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10 Prague 6, Czech Republic.
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10 Prague 6, Czech Republic.
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10
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Crousse B. Recent Advances in the Syntheses of N-CF 3 Scaffolds up to Their Valorization. CHEM REC 2023; 23:e202300011. [PMID: 36922747 DOI: 10.1002/tcr.202300011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/16/2023] [Indexed: 03/18/2023]
Abstract
This review provides a recent overview of the different synthetic routes of the N-CF3 group. This scaffold can be prepared from the desulfurization of thiocabamoyl fluorides or isothiocyanates with fluoride ions. Electrophilic and radical trifluoromethylations are also a great way to generate this motif. This report also focuses on the valorization of some N-CF3 compounds, which leads to new unknown N-trifluoromethyl derivatives. Finally, the first metabolic stability studies will be given for certain structures.
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Affiliation(s)
- Benoît Crousse
- BioCIS UMR 8076 CNRS, Building Henri Moissan, Université Paris-Saclay, 17 avenue des sciences, 91400, Orsay, France
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11
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Liu L, Gu YC, Zhang CP. Recent Advances in the Synthesis and Transformation of Carbamoyl Fluorides, Fluoroformates, and Their Analogues. CHEM REC 2023; 23:e202300071. [PMID: 37098875 DOI: 10.1002/tcr.202300071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/07/2023] [Indexed: 04/27/2023]
Abstract
Carbamoyl fluorides, fluoroformates, and their analogues are a class of important compounds and have been evidenced as versatile building blocks for the preparation of useful molecules in organic chemistry. While major achievements were made in the synthesis of carbamoyl fluorides, fluoroformates, and their analogues in the last half of 20th century, an increasing number of reports have focused on using O/S/Se=CF2 species or their equivalents as the fluorocarbonylation reagents for the direct construction of these compounds from the parent heteroatom-nucleophiles in recent years. This review mainly summarizes the advances in the synthesis and typical application of carbamoyl fluorides, fluoroformates, and their analogues by the halide exchanges and fluorocarbonylation reactions since 1980.
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Affiliation(s)
- Lei Liu
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Yu-Cheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG426EY, UK
| | - Cheng-Pan Zhang
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
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12
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McKnight EA, Arora R, Pradhan E, Fujisato YH, Ajayi AJ, Lautens M, Zeng T, Le CM. BF 3-Catalyzed Intramolecular Fluorocarbamoylation of Alkynes via Halide Recycling. J Am Chem Soc 2023; 145:11012-11018. [PMID: 37172320 DOI: 10.1021/jacs.3c03982] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A BF3-catalyzed atom-economical fluorocarbamoylation reaction of alkyne-tethered carbamoyl fluorides is reported. The catalyst acts as both a fluoride source and Lewis acid activator, thereby enabling the formal insertion of alkynes into strong C-F bonds through a halide recycling mechanism. The developed method provides access to 3-(fluoromethylene) oxindoles and γ-lactams with excellent stereoselectivity, including fluorinated derivatives of known protein kinase inhibitors. Experimental and computational studies support a stepwise mechanism for the fluorocarbamoylation reaction involving a turnover-limiting cyclization step, followed by internal fluoride transfer from a BF3-coordinated carbamoyl adduct. For methylene oxindoles, a thermodynamically driven Z-E isomerization is facilitated by a transition state with aromatic character. In contrast, this aromatic stabilization is not relevant for γ-lactams, which results in a higher barrier for isomerization and the exclusive formation of the Z-isomer.
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Affiliation(s)
- E Ali McKnight
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Ramon Arora
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Ekadashi Pradhan
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Yuriko H Fujisato
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Ayonitemi J Ajayi
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Mark Lautens
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Tao Zeng
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Christine M Le
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
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13
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Lei Z, Chang W, Guo H, Feng J, Zhang Z. A Brief Review on the Synthesis of the N-CF3 Motif in Heterocycles. Molecules 2023; 28:molecules28073012. [PMID: 37049775 PMCID: PMC10095997 DOI: 10.3390/molecules28073012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
The trifluoromethyl group is widely recognized for its significant role in the fields of medicinal chemistry and material science due to its unique electronic and steric properties that can alter various physiochemical properties of the parent molecule, such as lipophilicity, acidity, and hydrogen bonding capabilities. Compared to the well-established C-trifluoromethylation, N-trifluoromethylation has received lesser attention. Considering the extensive contribution of nitrogen to drug molecules, it is predicted that constructing N-trifluoromethyl (N-CF3) motifs will be of great significance in pharmaceutical and agrochemical industries. This review is mainly concerned with the synthesis of heterocycles containing this motif. In three-membered heterocycles containing the N-CF3 motif, the existing literature mostly demonstrated the synthetic strategy, as it does for four- and larger-membered heterocycles. Certain structures, such as oxaziridines, could serve as an oxidant or building blocks in organic synthesis. In five-membered heterocycles, it has been reported that N-CF3 azoles showed a higher lipophilicity and a latent increased metabolic stability and Caco-2-permeability compared with their N-CH3 counterparts, illustrating the potential of the N-CF3 motif. Various N-CF3 analogues of drugs or bioactive molecules, such as sildenafil analogue, have been obtained. In general, the N-CF3 motif is developing and has great potential in bioactive molecules or materials. Give the recent development in this motif, it is foreseeable that its synthesis methods and applications will become more and more extensive. In this paper, we present an overview of the synthesis of N-CF3 heterocycles, categorized on the basis of the number of rings (three-, four-, five-, six- and larger-membered heterocycles), and focus on the five-membered heterocycles containing the N-CF3 group.
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14
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Zivkovic FG, D-T Nielsen C, Schoenebeck F. Access to N-CF 3 Formamides by Reduction of N-CF 3 Carbamoyl Fluorides. Angew Chem Int Ed Engl 2022; 61:e202213829. [PMID: 36308723 PMCID: PMC10099374 DOI: 10.1002/anie.202213829] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Indexed: 11/06/2022]
Abstract
The departure into unknown chemical space is essential for the discovery of new properties and function. We herein report the first synthetic access to N-trifluoromethylated formamides. The method involves the reduction of bench-stable NCF3 carbamoyl fluorides and is characterized by operational simplicity and mildness, tolerating a broad range of functional groups as well as stereocenters. The newly made N-CF3 formamide motif proved to be highly robust and compatible with diverse chemical transformations, underscoring its potential as building block in complex functional molecules.
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Affiliation(s)
- Filip G Zivkovic
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Christian D-T Nielsen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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15
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Cadwallader D, Tiburcio TR, Cieszynski GA, Le CM. Synthesis of Carbamoyl Fluorides Using a Difluorophosgene Surrogate Derived from Difluorocarbene and Pyridine N-Oxides. J Org Chem 2022; 87:11457-11468. [PMID: 35972076 DOI: 10.1021/acs.joc.2c01017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a method for the synthesis of carbamoyl fluorides from secondary amines using bench-stable, inexpensive, and readily accessible starting materials that, when combined, yield a surrogate for toxic difluorophosgene (COF2) gas. In contrast to state-of-the-art methods for the synthesis of carbamoyl fluorides, our protocol does not require the use of pre-functionalized substrates, the preparation of light-, temperature-, and/or moisture-sensitive chemicals, or the application of explosive fluorinating reagents.
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Affiliation(s)
- Dusty Cadwallader
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Tristan R Tiburcio
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - George A Cieszynski
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Christine M Le
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
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16
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Turksoy A, Bouayad‐Gervais S, Schoenebeck F. N
‐CF
3
Imidazolidin‐2‐one Derivatives via Photocatalytic and Silver‐Catalyzed Cyclizations. Chemistry 2022; 28:e202201435. [DOI: 10.1002/chem.202201435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Abdurrahman Turksoy
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Samir Bouayad‐Gervais
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
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17
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Bouayad-Gervais S, Nielsen CDT, Turksoy A, Sperger T, Deckers K, Schoenebeck F. Access to Cyclic N-Trifluoromethyl Ureas through Photocatalytic Activation of Carbamoyl Azides. J Am Chem Soc 2022; 144:6100-6106. [PMID: 35333063 DOI: 10.1021/jacs.2c02004] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report the mild activation of carbamoyl azides to the corresponding nitrenes using a blue light/[Ir]-catalyzed strategy, which enables stereospecific access to N-trifluoromethyl imidazolidinones and benzimidazolones. These novel structural motifs proved to be highly robust, allowing their downstream diversification. On the basis of our combined computational and experimental studies, we propose that an electron rebound with the excited metal catalyst is undergone, involving a reduction-triggered nitrogen loss, followed by oxidation to the corresponding carbamoyl nitrene and subsequent C-H insertion.
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Affiliation(s)
- Samir Bouayad-Gervais
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Christian D-T Nielsen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Abdurrahman Turksoy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Theresa Sperger
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Kristina Deckers
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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18
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Zhang RZ, Huang W, Zhang RX, Xu C, Wang M. Synthesis of N-CF 3 Amidines/Imidates/Thioimidates via N-CF 3 Nitrilium Ions. Org Lett 2022; 24:2393-2398. [PMID: 35302381 DOI: 10.1021/acs.orglett.2c00647] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient methodology for the synthesis of a wide range of N-CF3 imidic acid derivatives is presented. In this reaction, N-CF3 nitrilium ions were generated via N-trifluoromethylation of nitriles using PhICF3Cl under catalysis with DMAP, followed by the capture of N-, O-, or S-centered nucleophiles to give diverse N-CF3 amidines, imidates, and thioimidates. The method provides a platform for preparing N-CF3 compounds with potential applications.
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Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Wanqiao Huang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ru Xue Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
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19
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Liu S, Huang Y, Wang J, Qing FL, Xu XH. General Synthesis of N-Trifluoromethyl Compounds with N-Trifluoromethyl Hydroxylamine Reagents. J Am Chem Soc 2022; 144:1962-1970. [DOI: 10.1021/jacs.1c12467] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shuai Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Yangen Huang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Juan Wang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Feng-Ling Qing
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
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20
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Zhang RZ, Zhang RX, Wang S, Xu C, Guan W, Wang M. An N-Trifluoromethylation/Cyclization Strategy for Accessing Diverse N-Trifluoromethyl Azoles from Nitriles and 1,3-Dipoles. Angew Chem Int Ed Engl 2022; 61:e202110749. [PMID: 34704326 DOI: 10.1002/anie.202110749] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/27/2021] [Indexed: 01/14/2023]
Abstract
N-Trifluoromethyl azoles are valuable targets in medicinal chemistry, but their synthesis is challenging. Classical preparation of N-CF3 azoles relies on the functional group interconversions but suffers from tedious N-pre-functionalization and unfriendly agents. Introduction of the CF3 onto the nitrogen of heterocycles provides a direct route to such motifs, but the N-trifluoromethylation remains underdeveloped. Reported here is an alternative and scalable cyclization strategy based on NCF3 -containing synthons for constructing N-CF3 azoles. The approach involves the N-trifluoromethylation of nitriles followed by a [3+2] cyclization between resulting N-CF3 nitrilium derivatives and 1,3-dipoles. PhICF3 Cl was an effective CF3 source for the transformation. As a result, a generic platform is established to divergently synthesize N-trifluoromethylated tetrazoles, imidazoles, and 1,2,3-triazoles by using sodium azide, activated methylene isocyanides, and diazo compounds as dipoles.
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Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Ru Xue Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Shuang Wang
- Institute of Functional of Material, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Wei Guan
- Institute of Functional of Material, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
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21
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Zhang RZ, Zhang RX, Wang S, Xu C, Guan W, Wang M. An
N
‐Trifluoromethylation/Cyclization Strategy for Accessing Diverse
N
‐Trifluoromethyl Azoles from Nitriles and 1,3‐Dipoles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202110749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Ru Xue Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Shuang Wang
- Institute of Functional of Material College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Wei Guan
- Institute of Functional of Material College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
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22
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Cao T, Retailleau P, Milcent T, Crousse B. Synthesis of N-CF 3 hydrazines through radical trifluoromethylation of azodicarboxylates. Chem Commun (Camb) 2021; 57:10351-10354. [PMID: 34533141 DOI: 10.1039/d1cc04538e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here the synthesis of a novel family of N-CF3 hydrazines from a direct way involving the available and cheap Langlois reagent (CF3SO2Na). These derivatives have shown very high stability whatever the conditions used and are excellent precursors for building previously inaccessible N-CF3 functionalized compounds, such as substituted hydrazides, hydrazine-amino-acids, hydrazones, N-aziridines and pyrazoles.
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Affiliation(s)
- Tingting Cao
- UMR 8076, BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 92290 Châtenay-Malabry, France.
| | - Pascal Retailleau
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, 91198 Gif-sur-Yvette, France.
| | - Thierry Milcent
- UMR 8076, BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 92290 Châtenay-Malabry, France.
| | - Benoît Crousse
- UMR 8076, BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 92290 Châtenay-Malabry, France.
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23
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Nielsen CDT, Zivkovic FG, Schoenebeck F. Synthesis of N-CF 3 Alkynamides and Derivatives Enabled by Ni-Catalyzed Alkynylation of N-CF 3 Carbamoyl Fluorides. J Am Chem Soc 2021; 143:13029-13033. [PMID: 34428910 DOI: 10.1021/jacs.1c07780] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The expansion of chemical space associated with ubiquitous motifs is key to unleash new properties and functions. In this context, alkynamides, prevalent in numerous drugs and materials, represent an untapped resource. We herein report the first synthetic access to N-trifluoromethyl alkynamides. Our strategy relies on a mild and operationally simple Ni-catalyzed coupling of N-CF3 carbamoyl fluorides with alkynyl silanes. The synthesized N-CF3 alkynamides proved to be highly robust and readily functioned as a platform to unlock access to valuable derivatives, such as N-CF3 decorated alkenyl amides, oxindoles, or quinolones, all of which were inaccessible to date.
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Affiliation(s)
- Christian D-T Nielsen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Filip G Zivkovic
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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24
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Ali R, Chinnam AK, Aswar VR. The Double and Triple Role of L-(+)-tartaric Acid and Dimethyl Urea: A Prevailing Green Approach in Organic Synthesis. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210111111313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The deep eutectic mixtures (DESs), introduced as a novel alternative to usual volatile
organic solvents for organic transformations, have attracted tremendous attention of the
research community because of their low cost, negligible vapour pressure, low toxicity, biodegradability,
recyclability, insensitivity towards moisture, and ready availability from bulk
renewable resources. Although the low melting mixture of dimethyl urea (DMU)/L-(+)-
tartaric acid (TA) is still in infancy, it is very effective as it plays multiple roles such as solvent,
catalyst and/or reagent in the same pot for many crucial organic transformations. These
unique properties of the DMU/TA mixture prompted us to provide a quick overview of where
the field stands presently and where it might be going in the near future. To our best knowledge,
no review dealing with the applications of a low melting mixture of DMU/TA appeared
in the literature except the one published in 2017, describing only the chemistry of indole systems. Therefore, we
intended to reveal the developments of this versatile, low melting mixture in the modern organic synthesis since its
first report in 2011 by Köenig’s team to date. Hopefully, the present review article will be useful to the researcher
working not only in the arena of synthetic organic chemistry but also to the scientists working in other branches of
science and technology.
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Affiliation(s)
- Rashid Ali
- Department of Chemistry, Jamia Millia Islamia, New Delhi-110025, India
| | - Ajay Kumar Chinnam
- Department of Chemistry, University of Idaho, Moscow, Idaho, 83844-2343, United States
| | - Vikas R. Aswar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
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25
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Rong HJ, Chen T, Xu ZG, Su TD, Shang Y, Wang YQ, Yang CF. 4-Dimethylaminopyridine-catalyzed synthesis of isothiocyanates from amines and carbon disulfide. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152868] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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26
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Liu L, Ran LY, Gu Y, Zhang CP. Facile synthesis of selenocarbamyl fluorides, selenoureas and their derivatives with [Me4N][SeCF3]. Org Chem Front 2021. [DOI: 10.1039/d1qo00736j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Me4N][SeCF3] has proved to be an excellent precursor of Se=CF2 for amines in the preparation of selenocarbamoyl fluorides, selenoureas, and their derivatives under catalyst- and additive-free conditions, which are otherwise difficult to synthesize by other methods.
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Affiliation(s)
- Lei Liu
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Long-Yu Ran
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Yucheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG426EY, UK
| | - Cheng-Pan Zhang
- School of Materials Science and Engineering & School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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27
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Guo W, Cai L, Xie Z, Mei W, Liu G, Deng L, Zhuo X, Zhong Y, Zou X, Zheng L, Fan X. Photocatalyzed intermolecular amination for the synthesis of hydrazonamides. Org Chem Front 2021. [DOI: 10.1039/d1qo00338k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A photocatalyzed intermolecular amination strategy for the synthesis of hydrazonamides is reported by a multi-component reaction of β-ketonitriles with N,N-disubstituted hydrazines.
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Affiliation(s)
- Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Liuhuan Cai
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Zhen Xie
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Weijie Mei
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Gongping Liu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Ling Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
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28
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29
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Schiesser S, Chepliaka H, Kollback J, Quennesson T, Czechtizky W, Cox RJ. N-Trifluoromethyl Amines and Azoles: An Underexplored Functional Group in the Medicinal Chemist’s Toolbox. J Med Chem 2020; 63:13076-13089. [DOI: 10.1021/acs.jmedchem.0c01457] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Stefan Schiesser
- Department of Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
| | - Hanna Chepliaka
- Department of Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
- Department of Chemistry, Ludwig-Maximilians Universität München, Butenandstrasse 5−13, 81377 Munich, Germany
| | - Johanna Kollback
- Department of Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
- Department of Chemistry and Molecular Biology, Göteborgs universitet, Kemigården 4, 41296 Gothenburg, Sweden
| | - Thibaut Quennesson
- Department of Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
- Université de Lille, Institut Pasteur de Lille, INSERM U1177 − Drugs and Molecules for Living Systems, 59000 Lille, France
| | - Werngard Czechtizky
- Department of Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
| | - Rhona J. Cox
- Department of Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
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30
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Bouayad‐Gervais S, Scattolin T, Schoenebeck F. N-Trifluoromethyl Hydrazines, Indoles and Their Derivatives. Angew Chem Int Ed Engl 2020; 59:11908-11912. [PMID: 32293088 PMCID: PMC7384184 DOI: 10.1002/anie.202004321] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Indexed: 12/23/2022]
Abstract
Reported herein is the first efficient strategy to synthesize a broad range of unsymmetrical N-CF3 hydrazines, which served as platform to unlock numerous currently inaccessible derivatives, such as tri- and tetra-substituted N-CF3 hydrazines, hydrazones, sulfonyl hydrazines, and valuable N-CF3 indoles. These compounds proved to be remarkably robust, being compatible with acids, bases, and a wide range of synthetic manipulations. The feasibility of RN(CF3 )-NH2 to function as a directing group in C-H functionalization is also showcased.
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Affiliation(s)
| | - Thomas Scattolin
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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