1
|
Soda Y, Tatsumi K, Forner M, Sato S, Shibuya K, Matagawa T, Simizu S, Chida N, Okamura T, Sato T. Stereodivergent synthesis of 2-oxo-oligopyrrolidines by an iterative coupling strategy. Org Biomol Chem 2024; 22:3230-3236. [PMID: 38564238 DOI: 10.1039/d4ob00350k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Natural linear polyamines play diverse roles in physiological processes by interacting with receptors at the cellular level. Herein, we describe the stereodivergent synthesis of oligopyrrolidines, which are conformationally constrained polyamines. We synthesized dimeric and trimeric 2-oxo-oligopyrrolidines using an iterative coupling strategy. The key to our success is an iridium-catalyzed trans/cis-selective nucleophilic addition and subsequent threo/erythro-stereoselective reduction. The synthesized pyrrolidines show varying cytotoxicities against a human cancer cell line depending on the number of rings and their stereochemistry.
Collapse
Affiliation(s)
- Yasuki Soda
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Kumpei Tatsumi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Matteo Forner
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo, 5, 35131 Padova, PD, Italy
| | - Shunsei Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Kana Shibuya
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Tomoe Matagawa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Siro Simizu
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Toshitaka Okamura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| |
Collapse
|
2
|
Morita T, Makino K, Tsuda M, Nakamura H. Chemoselective α-Trifluoroacetylation of Amides Using Highly Electrophilic Trifluoroacetic Anhydrides and 2,4,6-Collidine. Org Lett 2023. [PMID: 38047626 DOI: 10.1021/acs.orglett.3c03719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Chemoselective α-acylation of tertiary amides proceeded with highly electrophilic acid anhydrides and weak bases under mild conditions. β-Ketoamides containing trifluoroacetyl or perfluoroacyl groups were selectively obtained even in the presence of other functional groups such as ketone, ester, etc. Density functional theory calculations suggest that 1-acyloxyenamine is the key intermediate for the chemoselective α-acylation.
Collapse
Affiliation(s)
- Taiki Morita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho Midori-ku, Yokohama 226-8501, Japan
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho Midori-ku, Yokohama 226-8501, Japan
| | - Kentaro Makino
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho Midori-ku, Yokohama 226-8501, Japan
| | - Masato Tsuda
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho Midori-ku, Yokohama 226-8501, Japan
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho Midori-ku, Yokohama 226-8501, Japan
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho Midori-ku, Yokohama 226-8501, Japan
| |
Collapse
|
3
|
Malik M, Senatore R, Langer T, Holzer W, Pace V. Base-mediated homologative rearrangement of nitrogen-oxygen bonds of N-methyl- N-oxyamides. Chem Sci 2023; 14:10140-10146. [PMID: 37772102 PMCID: PMC10530184 DOI: 10.1039/d3sc03216g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 08/26/2023] [Indexed: 09/30/2023] Open
Abstract
Due to the well known reactivity of C(O)-N functionalities towards canonical C1-homologating agents (e.g. carbenoids, diazomethane, ylides), resulting in the extrusion of the N-centered fragment en route to carbonyl compounds, formal C1-insertions within N-O bonds still remain obscure. Herein, we document the homologative transformation of N-methyl-N-oxyamides - with high tolerance for diverse O-substituents - into N-acyl-N,O-acetals. Under controlled basic conditions, the N-methyl group of the same starting materials acts as a competent precursor of the methylene synthon required for the homologation. The logic is levered on the formation of an electrophilic iminium ion (via N-O heterolysis) susceptible to nucleophilic attack by the alkoxide previously expulsed. The procedure documents genuine chemocontrol and flexibility, as judged by the diversity of substituents placed on both amide and nitrogen linchpins. The mechanistic rationale was validated through experiments conducted on D-labeled materials which unambiguously attributed the origin of the methylene fragment to the N-methyl group of the starting compounds.
Collapse
Affiliation(s)
- Monika Malik
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna Josef-Holaubek-Platz 2 1090 Vienna Austria
| | - Raffaele Senatore
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna Josef-Holaubek-Platz 2 1090 Vienna Austria
| | - Thierry Langer
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna Josef-Holaubek-Platz 2 1090 Vienna Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna Josef-Holaubek-Platz 2 1090 Vienna Austria
| | - Vittorio Pace
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, University of Vienna Josef-Holaubek-Platz 2 1090 Vienna Austria
- Department of Chemistry, University of Turin Via Giuria 7 10125 Turin Italy
| |
Collapse
|
4
|
Wang Y, Wu X, Yang L, Liu W, Zhang Z, Xie X. Sequential KO tBu/FeCl 3-catalyzed reductive phosphonylation of tertiary amides for the synthesis of α-amino phosphonates and phosphines. Org Biomol Chem 2023; 21:2955-2959. [PMID: 36935630 DOI: 10.1039/d3ob00211j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
A simple, mild and efficient sequential KOtBu/FeCl3-catalyzed reductive phosphonylation of tertiary amides is herein described. This process first involved the KOtBu-catalyzed selective semi-reduction of tertiary amides to hemiaminal intermediates by TMDS (1,1,3,3-tetramethyldisiloxane) and then the FeCl3-catalyzed nucleophilic addition of the hemiaminal intermediates to phosphonates, which allowed the straightforward synthesis of α-amino phosphonates in moderate to good yields. This method applied well to amides and lactams that bear no strong acidic α-hydrogens, and various functional groups, including methoxy, methylthio, cyano, halogen, and heterocycles, could be tolerated.
Collapse
Affiliation(s)
- Yue Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Xiaoyu Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Liqun Yang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Wei Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| |
Collapse
|
5
|
Neighboring Nitrogen Atom-Induced Reactions of Azidoacetyl Hydrazides, including Unexpected Nitrogen-Nitrogen Bond Cleavage of the Hydrazide. ORGANICS 2022. [DOI: 10.3390/org3040035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
We studied the hydrazide compounds of the α-azidoacetyl group, which showed specific click reactivity by the intramolecular hydrogen bonding between the azido group and the N-H of the hydrazide moiety. In the competitive click reactions with a general alkyl azide, both traceless and non-traceless Staudinger-Bertozzi ligation occurred azide-site-selectively by the acceleration effect of the hydrogen bonding. However, the product obtained from the traceless reaction was further transformed into heterocyclic compounds. In addition, in an attempt at a synthesis of naphthalimide-possessing azidoacetyl hydrazide, nitrogen-nitrogen bond cleavage of the azidoacetyl hydrazides occurred to give the reduced amine product. These unexpected results could help design molecules for the successful Staudinger-Bertozzi ligation of the hydrazide compounds and develop a new nitrogen-nitrogen bond cleavage method.
Collapse
|
6
|
Wu DP, Ou W, Huang PQ. Ir-Catalyzed Chemoselective Reductive Condensation Reactions of Tertiary Amides with Active Methylene Compounds. Org Lett 2022; 24:5366-5371. [PMID: 35849542 DOI: 10.1021/acs.orglett.2c02045] [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 catalytic reductive condensation reactions of tertiary amides with active methylene compounds leading to multifunctionalized non-N-containing products is described. The reactions proceed through sequential iridium-catalyzed hydrosilylation of the amides followed by acid-mediated condensation with the active methylene compounds. This scalable method is broad in scope and shows remarkable chemoselectivity for the amide group in the presence of several sensitive or even more reactive functionalities such as ester, cyano, nitro, silyl dienol ether, and ketone.
Collapse
Affiliation(s)
- Dong-Ping Wu
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Wei Ou
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| |
Collapse
|
7
|
Biallas P, Yamazaki K, Dixon DJ. Difluoroalkylation of Tertiary Amides and Lactams by an Iridium-Catalyzed Reductive Reformatsky Reaction. Org Lett 2022; 24:2002-2007. [PMID: 35258311 PMCID: PMC9082613 DOI: 10.1021/acs.orglett.2c00438] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An iridium-catalyzed, reductive alkylation of abundant tertiary lactams and amides using 1-2 mol % of Vaska's complex (IrCl(CO)(PPh3)2), tetramethyldisiloxane (TMDS), and difluoro-Reformatsky reagents (BrZnCF2R) for the general synthesis of medicinally relevant α-difluoroalkylated tertiary amines is described. A broad scope (46 examples), including N-aryl- and N-heteroaryl-substituted lactams, demonstrated an excellent functional group tolerance. Furthermore, late-stage drug functionalizations, a gram-scale synthesis, and common downstream transformations proved the potential synthetic relevance of this new methodology.
Collapse
Affiliation(s)
- Phillip Biallas
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 2JD, U.K
| | - Ken Yamazaki
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 2JD, U.K
| | - Darren J Dixon
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 2JD, U.K
| |
Collapse
|
8
|
Coelho A, Souvenir Zafindrajaona MS, Vallée A, Behr JB, Vasse JL. Dual Activation of Unsaturated Amides with Schwartz's Reagent: A Diastereoselective Access to Cyclopentanols and N,O-Dimethylcyclopentylhydroxylamines. Chemistry 2021; 28:e202103789. [PMID: 34797605 DOI: 10.1002/chem.202103789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Indexed: 12/27/2022]
Abstract
The diastereoselective access to cyclopentanols and N,O-dimethylcyclopentylhydroxylamines from 4-pentenoic acid-derived Weinreb amides is described. Based on the concomitant generation of both the nucleophilic and the electrophilic poles by hydrozirconation of the amide and the C=C double bond, the cyclisation may be tuned towards cyclopentanols or N,O-dimethylcyclopentylhydroxylamines depending on the ring-closure promotor. An extension to cis 3-substituted N,O-dimethylcyclohexylhydroxylamines is also presented.
Collapse
Affiliation(s)
- Aurélien Coelho
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312), Université de Reims Champagne Ardenne, 51687, Reims Cedex 2, France
| | | | - Alexis Vallée
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312), Université de Reims Champagne Ardenne, 51687, Reims Cedex 2, France
| | - Jean-Bernard Behr
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312), Université de Reims Champagne Ardenne, 51687, Reims Cedex 2, France
| | - Jean-Luc Vasse
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312), Université de Reims Champagne Ardenne, 51687, Reims Cedex 2, France
| |
Collapse
|
9
|
Yanagimoto A, Uwabe Y, Wu Q, Muto K, Yamaguchi J. Convergent Azaspirocyclization of Bromoarenes with N-Tosylhydrazones by a Palladium Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aika Yanagimoto
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Yota Uwabe
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Qikun Wu
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Kei Muto
- Waseda Institute for Advanced Study, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| |
Collapse
|
10
|
Chen DH, Sun WT, Zhu CJ, Lu GS, Wu DP, Wang AE, Huang PQ. Enantioselective Reductive Cyanation and Phosphonylation of Secondary Amides by Iridium and Chiral Thiourea Sequential Catalysis. Angew Chem Int Ed Engl 2021; 60:8827-8831. [PMID: 33484032 DOI: 10.1002/anie.202015898] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Indexed: 12/26/2022]
Abstract
The combination of transition-metal catalysis and organocatalysis increasingly offers chemists opportunities to realize diverse unprecedented chemical transformations. By combining iridium with chiral thiourea catalysis, direct enantioselective reductive cyanation and phosphonylation of secondary amides have been accomplished for the first time for the synthesis of enantioenriched chiral α-aminonitriles and α-aminophosphonates. The protocol is highly efficient and enantioselective, providing a novel route to the synthesis of optically active α-functionalized amines from the simple, readily available feedstocks. In addition, the reactions are scalable and the thiourea catalyst can be recycled and reused.
Collapse
Affiliation(s)
- Dong-Huang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Wei-Ting Sun
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Cheng-Jie Zhu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Guang-Sheng Lu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Dong-Ping Wu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China
| | - Ai-E Wang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, Gansu, China
| |
Collapse
|
11
|
Chen D, Sun W, Zhu C, Lu G, Wu D, Wang A, Huang P. Enantioselective Reductive Cyanation and Phosphonylation of Secondary Amides by Iridium and Chiral Thiourea Sequential Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015898] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dong‐Huang Chen
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Wei‐Ting Sun
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Cheng‐Jie Zhu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Guang‐Sheng Lu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Dong‐Ping Wu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
| | - Ai‐E Wang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000, Gansu China
| | - Pei‐Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000, Gansu China
| |
Collapse
|
12
|
Ong DY, Chen JH, Chiba S. Reductive Functionalization of Carboxamides: A Recent Update. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200182] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Jia-hua Chen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| |
Collapse
|
13
|
Affiliation(s)
- Manisha Tripathy
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| |
Collapse
|
14
|
Rogova T, Gabriel P, Zavitsanou S, Leitch JA, Duarte F, Dixon DJ. Reverse Polarity Reductive Functionalization of Tertiary Amides via a Dual Iridium-Catalyzed Hydrosilylation and Single Electron Transfer Strategy. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03089] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tatiana Rogova
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Pablo Gabriel
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Stamatia Zavitsanou
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Jamie A. Leitch
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Fernanda Duarte
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Darren J. Dixon
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| |
Collapse
|
15
|
Ong DY, Fan D, Dixon DJ, Chiba S. Transition-Metal-Free Reductive Functionalization of Tertiary Carboxamides and Lactams for α-Branched Amine Synthesis. Angew Chem Int Ed Engl 2020; 59:11903-11907. [PMID: 32329555 DOI: 10.1002/anie.202004272] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Indexed: 12/29/2022]
Abstract
A new method for the synthesis of α-branched amines by reductive functionalization of tertiary carboxamides and lactams is described. The process relies on the efficient and controlled reduction of tertiary amides by a sodium hydride/sodium iodide composite, in situ treatment of the resulting anionic hemiaminal with trimethylsilyl chloride and subsequent coupling with nucleophilic reagents including Grignard reagents and tetrabutylammonium cyanide. The new method exhibits broad functional-group compatibility, operates under transition-metal-free reaction conditions, and is suitable for various synthetic applications on both sub-millimole and on multigram scales.
Collapse
Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Dongyang Fan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| |
Collapse
|
16
|
Ong DY, Fan D, Dixon DJ, Chiba S. Transition‐Metal‐Free Reductive Functionalization of Tertiary Carboxamides and Lactams for α‐Branched Amine Synthesis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004272] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Derek Yiren Ong
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Dongyang Fan
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Darren J. Dixon
- Department of Chemistry Chemistry Research Laboratory University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| |
Collapse
|
17
|
Ou W, Lu GS, An D, Han F, Huang PQ. Two-Step Catalytic Transformation of N
-Benzyllactams to Alkaloids (±)-Solenopsin, (±)-Solenopsin A, and (+)-Julifloridine. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901752] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Guang-Sheng Lu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Dong An
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| |
Collapse
|
18
|
Miele M, D'Orsi R, Sridharan V, Holzer W, Pace V. Highly chemoselective difluoromethylative homologation of iso(thio)cyanates: expeditious access to unprecedented α,α-difluoro(thio)amides. Chem Commun (Camb) 2019; 55:12960-12963. [PMID: 31602439 DOI: 10.1039/c9cc06929a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The new motif - α,α-difluoromethyl thioamide - has been assembled starting from isothiocyanate (as thioamide precursor) and a formal difluoromethyl-carbanion generated from commercially available TMSCHF2. Upon proper activation of this reagent with potassium tert-amylate, the high-yielding transfer of the difluorinated nucleophile takes place under high chemocontrol. Various sensitive functionalities (e.g. ester, nitrile, nitro, azido groups) can be accommodated across the isothiocyanate core, thus allowing a wide scope. The methodology is highly flexible and adaptable to prepare analogous α,α-difluoromethyl oxoamides by conveniently using isocyanates as the electrophilic building-blocks.
Collapse
Affiliation(s)
- Margherita Miele
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria.
| | - Rosarita D'Orsi
- Department of Sciences, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Vellaisamy Sridharan
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), 181143, India
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria.
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria.
| |
Collapse
|
19
|
Takahashi Y, Sato T, Chida N. Iridium-catalyzed Reductive Nucleophilic Addition to Tertiary Amides. CHEM LETT 2019. [DOI: 10.1246/cl.190467] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yoshito Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| |
Collapse
|
20
|
Xu Z, Wang XG, Wei YH, Ji KL, Zheng JF, Ye JL, Huang PQ. Organocatalytic, Enantioselective Reductive Bis-functionalization of Secondary Amides: One-Pot Construction of Chiral 2,2-Disubstituted 3-Iminoindoline. Org Lett 2019; 21:7587-7591. [PMID: 31479277 DOI: 10.1021/acs.orglett.9b02862] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report the first catalytic, enantioselective reductive bis-functionalization of common amides, which provides a facile access to a variety of 2,2-disubstituted 3-iminoindolines in good yields and with excellent enantioselectivities. The reaction conditions are quite mild and can be run on a gram scale. In this one-pot reaction, three C-C bonds, one ring, and one nitrogen-containing tetrasubstituted carbon stereocenter are created in a catalytic enantioselective manner.
Collapse
Affiliation(s)
- Zhen Xu
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Xiao-Gang Wang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Yong-Hua Wei
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Kan-Lei Ji
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Jian-Feng Zheng
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China.,The State Key Laboratory of Bio-organic and Natural Products Chemistry, CAS , 354 Fenglin Road , Shanghai 200032 , P.R. China
| | - Jian-Liang Ye
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P.R. China
| |
Collapse
|
21
|
Chen TT, Wang AE, Huang PQ. Chemoselective Synthesis of α-Amino-α-cyanophosphonates by Reductive Gem-Cyanation-Phosphonylation of Secondary Amides. Org Lett 2019; 21:3808-3812. [PMID: 31059269 DOI: 10.1021/acs.orglett.9b01257] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A novel approach to α-amino-α-cyanophosphonates has been developed. The method features a Tf2O-mediated reductive geminal cyanation/phosphonylation of secondary amides. Mild reaction conditions, high bond-forming efficiency, inexpensive readily available starting materials, and good to excellent yields with wide functional group compatibility constitute the main advantages of this method. The protocol can be run on a gram scale.
Collapse
Affiliation(s)
| | - Ai-E Wang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , China.,State Key Laboratory of Applied Organic Chemistry Lanzhou University , Lanzhou 730000 , China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , Fujian , China.,State Key Laboratory of Applied Organic Chemistry Lanzhou University , Lanzhou 730000 , China
| |
Collapse
|
22
|
Yang ZP, Lu GS, Ye JL, Huang PQ. Ir-catalyzed chemoselective reduction of β-amido esters: A versatile approach to β-enamino esters. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
23
|
Huang YH, Wang SR, Wu DP, Huang PQ. Intermolecular Dehydrative [4 + 2] Aza-Annulation of N-Arylamides with Alkenes: A Direct and Divergent Entrance to Aza-Heterocycles. Org Lett 2019; 21:1681-1685. [DOI: 10.1021/acs.orglett.9b00233] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ying-Hong Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P.R. China
| | - Shu-Ren Wang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P.R. China
| | - Dong-Ping Wu
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P.R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P.R. China
| |
Collapse
|
24
|
Liu YP, Wang SR, Chen TT, Yu CC, Wang AE, Huang PQ. Enamines as Surrogates of Alkyl Carbanions for the Direct Conversion of Secondary Amides to α-Branched Ketones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yong-Peng Liu
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005, Fujian People's Republic of China
| | - Shu-Ren Wang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005, Fujian People's Republic of China
| | - Ting-Ting Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005, Fujian People's Republic of China
| | - Cun-Cun Yu
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005, Fujian People's Republic of China
| | - Ai-E Wang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005, Fujian People's Republic of China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Pei-Qiang Huang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005, Fujian People's Republic of China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University; Lanzhou 730000 People's Republic of China
| |
Collapse
|
25
|
Czerwiński PJ, Furman B. Overcoming inaccessibility of fluorinated imines - synthesis of functionalized amines from readily available fluoroacetamides. Chem Commun (Camb) 2019; 55:9436-9439. [PMID: 31304490 DOI: 10.1039/c9cc04111g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although imines are convenient substrates for the synthesis of functionalized amines, they may be hard to obtain, as in the case of fluorinated imines. To aid in overcoming this issue, we propose a protocol of corresponding amine synthesis from simple fluoroacetic acid-derived amides using Schwartz's reagent.
Collapse
Affiliation(s)
- Paweł J Czerwiński
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | | |
Collapse
|
26
|
de la Vega-Hernández K, Senatore R, Miele M, Urban E, Holzer W, Pace V. Chemoselective reduction of isothiocyanates to thioformamides mediated by the Schwartz reagent. Org Biomol Chem 2019; 17:1970-1978. [DOI: 10.1039/c8ob02312c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Thioformamides are easily prepared – under full chemocontrol – through the partial reduction of isothiocyanates with the in situ generated Schwartz reagent.
Collapse
Affiliation(s)
| | - Raffaele Senatore
- University of Vienna
- Department of Pharmaceutical Chemistry
- 1090 Vienna
- Austria
| | - Margherita Miele
- University of Vienna
- Department of Pharmaceutical Chemistry
- 1090 Vienna
- Austria
| | - Ernst Urban
- University of Vienna
- Department of Pharmaceutical Chemistry
- 1090 Vienna
- Austria
| | - Wolfgang Holzer
- University of Vienna
- Department of Pharmaceutical Chemistry
- 1090 Vienna
- Austria
| | - Vittorio Pace
- University of Vienna
- Department of Pharmaceutical Chemistry
- 1090 Vienna
- Austria
| |
Collapse
|
27
|
Ronson TO, Renders E, Van Steijvoort BF, Wang X, Wybon CCD, Prokopcová H, Meerpoel L, Maes BUW. Ruthenium‐Catalyzed Reductive Arylation of N‐(2‐Pyridinyl)amides with Isopropanol and Arylboronate Esters. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas O. Ronson
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Evelien Renders
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Ben F. Van Steijvoort
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Xubin Wang
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Clarence C. D. Wybon
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Hana Prokopcová
- Janssen Research & Development, Janssen Pharmaceutica NV Turnhoutseweg 30 2340 Beerse Belgium
| | - Lieven Meerpoel
- Janssen Research & Development, Janssen Pharmaceutica NV Turnhoutseweg 30 2340 Beerse Belgium
| | - Bert U. W. Maes
- Organic SynthesisDepartment of ChemistryUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| |
Collapse
|
28
|
Ronson TO, Renders E, Van Steijvoort BF, Wang X, Wybon CCD, Prokopcová H, Meerpoel L, Maes BUW. Ruthenium-Catalyzed Reductive Arylation of N-(2-Pyridinyl)amides with Isopropanol and Arylboronate Esters. Angew Chem Int Ed Engl 2018; 58:482-487. [PMID: 30380163 DOI: 10.1002/anie.201810947] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Indexed: 11/11/2022]
Abstract
A new three-component reductive arylation of amides with stable reactants (iPrOH and arylboronate esters), making use of a 2-pyridinyl (Py) directing group, is described. The N-Py-amide substrates are readily prepared from carboxylic acids and PyNH2 , and the resulting N-Py-1-arylalkanamine reaction products are easily transformed into the corresponding chlorides by substitution of the HN-Py group with HCl. The 1-aryl-1-chloroalkane products allow substitution and cross-coupling reactions. Therefore, a general protocol for the transformation of carboxylic acids into a variety of functionalities is obtained. The Py-NH2 by-product can be recycled.
Collapse
Affiliation(s)
- Thomas O Ronson
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Evelien Renders
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Ben F Van Steijvoort
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Xubin Wang
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Clarence C D Wybon
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Hana Prokopcová
- Janssen Research & Development, Janssen Pharmaceutica NV, Turnhoutseweg 30, 2340, Beerse, Belgium
| | - Lieven Meerpoel
- Janssen Research & Development, Janssen Pharmaceutica NV, Turnhoutseweg 30, 2340, Beerse, Belgium
| | - Bert U W Maes
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| |
Collapse
|
29
|
Takahashi Y, Yoshii R, Sato T, Chida N. Iridium-Catalyzed Reductive Nucleophilic Addition to Secondary Amides. Org Lett 2018; 20:5705-5708. [PMID: 30192556 DOI: 10.1021/acs.orglett.8b02421] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An iridium-catalyzed reductive nucleophilic addition to secondary amides is reported. After the iridium-catalyzed reduction, the resulting imines can undergo the Strecker reaction, the Mannich reaction, allylation, and [3 + 2]-cycloaddition. The method shows high chemoselectivity in the presence of other functional groups such as methyl ester.
Collapse
Affiliation(s)
- Yoshito Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1, Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan
| | - Risa Yoshii
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1, Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1, Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1, Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan
| |
Collapse
|
30
|
Trillo P, Slagbrand T, Adolfsson H. Straightforward α-Amino Nitrile Synthesis Through Mo(CO)6
-Catalyzed Reductive Functionalization of Carboxamides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807735] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paz Trillo
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| |
Collapse
|
31
|
Trillo P, Slagbrand T, Adolfsson H. Straightforward α-Amino Nitrile Synthesis Through Mo(CO)6
-Catalyzed Reductive Functionalization of Carboxamides. Angew Chem Int Ed Engl 2018; 57:12347-12351. [DOI: 10.1002/anie.201807735] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Paz Trillo
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 106 91 Stockholm Sweden
| | - Hans Adolfsson
- Department of Chemistry; Umeå University; KBC3, Linnaeus väg 10 90187 Sweden
| |
Collapse
|
32
|
Ou W, Han F, Hu XN, Chen H, Huang PQ. Iridium-Catalyzed Reductive Alkylations of Secondary Amides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806747] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Xiu-Ning Hu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Hang Chen
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 P. R. China
| |
Collapse
|
33
|
Ou W, Han F, Hu XN, Chen H, Huang PQ. Iridium-Catalyzed Reductive Alkylations of Secondary Amides. Angew Chem Int Ed Engl 2018; 57:11354-11358. [DOI: 10.1002/anie.201806747] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/05/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Xiu-Ning Hu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Hang Chen
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 P. R. China
| |
Collapse
|
34
|
Więcław MM, Stecko S. Hydrozirconation of C=X Functionalities with Schwartz's Reagent. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701537] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Michał M. Więcław
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| |
Collapse
|
35
|
Hu XN, Shen TL, Cai DC, Zheng JF, Huang PQ. The iridium-catalysed reductive coupling reaction of tertiary lactams/amides with isocyanoacetates. Org Chem Front 2018. [DOI: 10.1039/c8qo00312b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A catalytic reductive addition of isocyanoacetates to tertiary lactams/amides has been developed. This one-pot procedure involves Ir-catalysed partial reduction of lactams/amides and sequential chemoselective addition of isocyanide group in isocyanoacetates and produces 5-methoxyoxazoles in moderate to excellent yields.
Collapse
Affiliation(s)
- Xiu-Ning Hu
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Tai-Long Shen
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Dong-Cheng Cai
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Jian-Feng Zheng
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Pei-Qiang Huang
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| |
Collapse
|
36
|
Chen H, Ye JL, Huang PQ. Chemoselective direct reductive trifluoromethylation of amides: a flexible access to functionalized α-trifluoromethylamines. Org Chem Front 2018. [DOI: 10.1039/c7qo01031a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot method is reported for the direct transformation of secondary amides to α-trifluoromethylamines.
Collapse
Affiliation(s)
- Hang Chen
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Jian-Liang Ye
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Pei-Qiang Huang
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| |
Collapse
|
37
|
Sato T, Yoritate M, Tajima H, Chida N. Total synthesis of complex alkaloids by nucleophilic addition to amides. Org Biomol Chem 2018; 16:3864-3875. [DOI: 10.1039/c8ob00733k] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This mini review focuses on the recent progress of total synthesis of complex alkaloids based on the nucleophilic additions toN-alkoxyamides, tertiary amides and secondary amides.
Collapse
Affiliation(s)
- Takaaki Sato
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University 3-14-1
- Yokohama 223-8522
- Japan
| | - Makoto Yoritate
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University 3-14-1
- Yokohama 223-8522
- Japan
| | - Hayato Tajima
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University 3-14-1
- Yokohama 223-8522
- Japan
| | - Noritaka Chida
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University 3-14-1
- Yokohama 223-8522
- Japan
| |
Collapse
|
38
|
Ye JL, Zhu YN, Geng H, Huang PQ. Metal-free synthesis of quinolines by direct condensation of amides with alkynes: revelation of N-aryl nitrilium intermediates by 2D NMR techniques. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9160-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
39
|
Huang M, Deng Q, Gao Q, Shi J, Zhang X, Xiong Y. Iron-Sulfate-Catalyzed Direct Dehydrogenative Coupling Cyanation of Secondary Phenylamines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700524] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mingming Huang
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400044 China
| | - Qingfu Deng
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400044 China
| | - Qin Gao
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400044 China
| | - Jian Shi
- Chengdu Easton Biopharmaceuticals Co. Ltd.; Chengdu 611731 China
| | - Xiaohui Zhang
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400044 China
| | - Yan Xiong
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400044 China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
| |
Collapse
|
40
|
Huang PQ, Fan T. Intramolecular Keto Lactam Condensation: A Convenient and Straightforward Approach to Bicyclic Vinylogous Lactams. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Ting Fan
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| |
Collapse
|
41
|
Xie LG, Dixon DJ. Tertiary amine synthesis via reductive coupling of amides with Grignard reagents. Chem Sci 2017; 8:7492-7497. [PMID: 29163902 PMCID: PMC5676097 DOI: 10.1039/c7sc03613b] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 09/09/2017] [Indexed: 01/30/2023] Open
Abstract
A new iridium catalyzed reductive coupling reaction of Grignard reagents and tertiary amides affording functionalised tertiary amine products is described.
A new iridium catalyzed reductive coupling reaction of Grignard reagents and tertiary amides affording functionalised tertiary amine products via an efficient and technically-simple one-pot, two-stage experimental protocol, is reported. The reaction – which can be carried out on gram-scale using as little as 1 mol% Vaska's complex [IrCl(CO)(PPh3)2] and TMDS as the terminal reductant for the initial reductive activation step – tolerates a broad range of tertiary amides from (hetero)aromatic to aliphatic (branched, unbranched and formyl) and a wide variety of alkyl (linear, branched), vinyl, alkynyl and (hetero)aryl Grignard reagents. The new methodology has been applied directly to bioactive molecule synthesis and the high chemoselectivity of the reductive coupling of amide has been exploited in late stage functionalization of drug molecules. This reductive functionalisation of tertiary amides provides a new and practical solution to tertiary amine synthesis.
Collapse
Affiliation(s)
- Lan-Gui Xie
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , UK .
| | - Darren J Dixon
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , UK .
| |
Collapse
|
42
|
Zheng JF, Hu XN, Xu Z, Cai DC, Shen TL, Huang PQ. Substrate-Controlled Chemoselective Reactions of Isocyanoacetates with Amides and Lactams. J Org Chem 2017; 82:9693-9703. [DOI: 10.1021/acs.joc.7b01768] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian-Feng Zheng
- Department of Chemistry,
Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative
Innovation Center of Chemistry for Energy Materials), College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Xiu-Ning Hu
- Department of Chemistry,
Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative
Innovation Center of Chemistry for Energy Materials), College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Zhen Xu
- Department of Chemistry,
Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative
Innovation Center of Chemistry for Energy Materials), College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Dong-Cheng Cai
- Department of Chemistry,
Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative
Innovation Center of Chemistry for Energy Materials), College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Tai-Long Shen
- Department of Chemistry,
Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative
Innovation Center of Chemistry for Energy Materials), College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry,
Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative
Innovation Center of Chemistry for Energy Materials), College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| |
Collapse
|
43
|
Katahara S, Kobayashi S, Fujita K, Matsumoto T, Sato T, Chida N. Reductive Approach to Nitrones from N-Siloxyamides and N-Hydroxyamides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170086] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Seiya Katahara
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Shoichiro Kobayashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Kanami Fujita
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Tsutomu Matsumoto
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| |
Collapse
|
44
|
Fuentes de Arriba ÁL, Lenci E, Sonawane M, Formery O, Dixon DJ. Iridium‐Catalyzed Reductive Strecker Reaction for Late‐Stage Amide and Lactam Cyanation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612367] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ángel L. Fuentes de Arriba
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Elena Lenci
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Mahendra Sonawane
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Odilon Formery
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Darren J. Dixon
- Department of Chemistry Chemistry Research Laboratory University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
45
|
Fuentes de Arriba ÁL, Lenci E, Sonawane M, Formery O, Dixon DJ. Iridium-Catalyzed Reductive Strecker Reaction for Late-Stage Amide and Lactam Cyanation. Angew Chem Int Ed Engl 2017; 56:3655-3659. [PMID: 28233919 DOI: 10.1002/anie.201612367] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 12/15/2022]
Abstract
A new iridium-catalyzed reductive Strecker reaction for the direct and efficient formation of α-amino nitrile products from a broad range of (hetero)aromatic and aliphatic tertiary amides, and N-alkyl lactams is reported. The protocol exploits the mild and highly chemoselective reduction of the amide and lactam functionalities using IrCl(CO)[P(C6 H5 )3 ]2 (Vaska's complex) in the presence of tetramethyldisiloxane, as a reductant, to directly generate hemiaminal species able to undergo substitution by cyanide upon treatment with TMSCN (TMS=trimethylsilyl). The protocol is simple to perform, broad in scope, efficient (up to 99 % yield), and has been successfully applied to the late-stage functionalization of amide- and lactam-containing drugs, and naturally occurring alkaloids, as well as for the selective cyanation of the carbonyl carbon atom linked to the N atom of proline residues within di- and tripeptides.
Collapse
Affiliation(s)
- Ángel L Fuentes de Arriba
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Elena Lenci
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Mahendra Sonawane
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Odilon Formery
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| |
Collapse
|
46
|
Huang PQ, Huang YH. Further Studies on the Direct Synthesis ofα,β-Unsaturated Ketimines andα,β-Enones by Chemoselective Dehydrative Addition of Functionalized Alkenes to Secondary Amides. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600700] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 China
| | - Ying-Hong Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 China
| |
Collapse
|
47
|
Huang PQ, Ou W. A Direct, Versatile, and Chemoselective Synthesis of Vinylogous Bis- and Monourethanes/amides and β-Keto Esters by Aza-Knoevenagel-Type Reactions of Tertiary Amides with Enolates. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601326] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P.R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Wei Ou
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P.R. China
| |
Collapse
|
48
|
Castoldi L, Holzer W, Langer T, Pace V. Evidence and isolation of tetrahedral intermediates formed upon the addition of lithium carbenoids to Weinreb amides and N-acylpyrroles. Chem Commun (Camb) 2017; 53:9498-9501. [DOI: 10.1039/c7cc05215d] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Trapping tetrahedral intermediates from Weinreb amides andN-acylpyrroles.
Collapse
Affiliation(s)
- Laura Castoldi
- University of Vienna – Department of Pharmaceutical Chemistry
- Vienna
- Austria
| | - Wolfgang Holzer
- University of Vienna – Department of Pharmaceutical Chemistry
- Vienna
- Austria
| | - Thierry Langer
- University of Vienna – Department of Pharmaceutical Chemistry
- Vienna
- Austria
| | - Vittorio Pace
- University of Vienna – Department of Pharmaceutical Chemistry
- Vienna
- Austria
| |
Collapse
|
49
|
Trillo P, Slagbrand T, Tinnis F, Adolfsson H. Facile preparation of pyrimidinediones and thioacrylamides via reductive functionalization of amides. Chem Commun (Camb) 2017; 53:9159-9162. [DOI: 10.1039/c7cc04170e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A protocol for the mild and chemoselective reductive functionalization of amides into pyrimidinediones and thioacrylamides has been developed.
Collapse
Affiliation(s)
- Paz Trillo
- Department of Organic Chemistry
- Stockholm University
- Arrhenius Laboratory
- SE-106 91 Stockholm
- Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry
- Stockholm University
- Arrhenius Laboratory
- SE-106 91 Stockholm
- Sweden
| | - Fredrik Tinnis
- Department of Organic Chemistry
- Stockholm University
- Arrhenius Laboratory
- SE-106 91 Stockholm
- Sweden
| | - Hans Adolfsson
- Department of Organic Chemistry
- Stockholm University
- Arrhenius Laboratory
- SE-106 91 Stockholm
- Sweden
| |
Collapse
|
50
|
Huang PQ, Huang YH, Wang SR. One-pot synthesis of N-heterocycles and enimino carbocycles by tandem dehydrative coupling–reductive cyclization of halo-sec-amides and dehydrative cyclization of olefinic sec-amides. Org Chem Front 2017. [DOI: 10.1039/c6qo00720a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report a versatile approach for the one-pot synthesis of substituted pyrrolidine, piperidine, indolizidine, and quinolizidine ring systems, and enimino carbocycles.
Collapse
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Ying-Hong Huang
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Shu-Ren Wang
- Department of Chemistry
- Fujian Provincial Key Laboratory of Chemical Biology
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- College of Chemistry and Chemical Engineering
- Xiamen University
| |
Collapse
|