1
|
Ren J, Xu J, Kong X, Li J, Li K. Coordinating activation strategy enables 1,2-alkylamidation of alkynes. Chem Sci 2023; 14:11466-11473. [PMID: 37886104 PMCID: PMC10599465 DOI: 10.1039/d3sc03786j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
The radical 1,2-difunctionalization reaction of alkynes has been evolved into a versatile approach for expeditiously increasing the complexity of the common feedstock alkyne. However, intermolecular 1,2-carboamidation with general alkyl groups is an unsolved problem. Herein, we show that a coordinating activation strategy could act as an efficient tool for enabling radical 1,2-alkylamidation of alkynes. With the employment of diacyl peroxides as both alkylating reagents and internal oxidants, a large library of β-alkylated enamides is constructed in a three-component manner from readily accessible amides and alkynes. This protocol exhibits broad substrate scope with good functional group compatibility and is amenable for late-stage functionalization of natural molecules and biologically compounds.
Collapse
Affiliation(s)
- Jing Ren
- Biopharmaceutical Research Institute, West China Hospital of Sichuan University 37 Guoxue Alley Chengdu 610041 P. R. China
| | - Junhua Xu
- Biopharmaceutical Research Institute, West China Hospital of Sichuan University 37 Guoxue Alley Chengdu 610041 P. R. China
| | - Xiangxiang Kong
- Biopharmaceutical Research Institute, West China Hospital of Sichuan University 37 Guoxue Alley Chengdu 610041 P. R. China
| | - Jinlong Li
- Biopharmaceutical Research Institute, West China Hospital of Sichuan University 37 Guoxue Alley Chengdu 610041 P. R. China
| | - Kaizhi Li
- Biopharmaceutical Research Institute, West China Hospital of Sichuan University 37 Guoxue Alley Chengdu 610041 P. R. China
| |
Collapse
|
2
|
Wang R, Liu WH. Decarboxylative Enamide Synthesis from Carboxylic Acid and Alkenyl Isocyanate. Org Lett 2023; 25:5231-5235. [PMID: 37428197 DOI: 10.1021/acs.orglett.3c01682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Herein, we reported a protocol to access the enamide via employing carboxylic acid and alkenyl isocyanate as the precursors promoted by DMAP without involving any metal catalysts and dehydration reagents. This protocol is simple and practical and tolerates numerous functional groups. Considering the simplicity, the ready availability of both starting materials, and the significance of the enamides, we expect that this reaction will find broad application.
Collapse
Affiliation(s)
- Rui Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenbo H Liu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| |
Collapse
|
3
|
Banjo S, Nakata K, Nakasuji E, Yasui S, Chida N, Sato T. Copper-Catalyzed Electrophilic Enamidation Using Dioxazolones through Hydrozirconation of Alkynes. Org Lett 2022; 24:8662-8666. [DOI: 10.1021/acs.orglett.2c03497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Shona Banjo
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Keisuke Nakata
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Eiko Nakasuji
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Soichiro Yasui
- 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
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| |
Collapse
|
4
|
John S, Bora D, Dhiman V, Tokala R, Samanthula G, Shankaraiah N. Ru(II)-Catalyzed Regioselective C-N Bond Formation on Benzothiazoles Employing Acyl Azide as an Amidating Agent. ACS OMEGA 2022; 7:1299-1310. [PMID: 35036791 PMCID: PMC8756580 DOI: 10.1021/acsomega.1c05910] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
A Ru(II)-catalyzed regioselective direct ortho-amidation of 2-aryl benzo[d]thiazoles employing acyl azides as a nitrogen source has been accomplished. This approach utilizes the efficiency of benzothiazole as a directing group and the role of acyl azide as an effective amidating agent toward C-N bond formation, thereby evading the general Curtius rearrangement. The protocol highlights significant functional group tolerance, single-step, and external oxidant-free conditions, with the release of only innocuous molecular nitrogen as the byproduct. The reaction mechanism and the intermediates associated with this selective Ru-catalyzed reaction have been investigated using ESI-MS. The protocol also aided in the construction of ortho-amidated β-carbolines, unveiling another class of fluorescent molecules.
Collapse
Affiliation(s)
- Stephy
Elza John
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Darshana Bora
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Vivek Dhiman
- Department
of Pharmaceutical Analysis, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Ramya Tokala
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Gananadhamu Samanthula
- Department
of Pharmaceutical Analysis, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nagula Shankaraiah
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| |
Collapse
|
5
|
Spieß P, Berger M, Kaiser D, Maulide N. Direct Synthesis of Enamides via Electrophilic Activation of Amides. J Am Chem Soc 2021; 143:10524-10529. [PMID: 34232035 PMCID: PMC8299460 DOI: 10.1021/jacs.1c04363] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Indexed: 01/02/2023]
Abstract
A novel, one-step N-dehydrogenation of amides to enamides is reported. This reaction employs the unlikely combination of LiHMDS and triflic anhydride, which serves as both the electrophilic activator and the oxidant, and is characterized by its simple setup and broad substrate scope. The synthetic utility of the formed enamides was readily demonstrated in a range of downstream transformations.
Collapse
Affiliation(s)
- Philipp Spieß
- Institute
of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Martin Berger
- Institute
of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Daniel Kaiser
- Institute
of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute
of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| |
Collapse
|
6
|
Wang X, Liu H, Xiang D, Zhang Q, Li D. Hypervalent Iodine Reagent‐Mediated Selective Vinyl C−H Amidation of 4‐Alkoxystyrenes with Diarylsulfonimides for Preparation of Enamides. ChemistrySelect 2020. [DOI: 10.1002/slct.202001689] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xia Wang
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan 430068 China
| | - Hao Liu
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan 430068 China
| | - Dehu Xiang
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan 430068 China
| | - Qian Zhang
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan 430068 China
| | - Dong Li
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan 430068 China
| |
Collapse
|
7
|
Xu HB, Yang JH, Chai XY, Zhu YY, Dong L. Iridium(III)-Catalyzed C–H Amidation/Cyclization of NH-Sulfoximines with N-Alkoxyamides: Formation of Thiadiazine 1-Oxides. Org Lett 2020; 22:2060-2063. [PMID: 32101014 DOI: 10.1021/acs.orglett.0c00520] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hui-Bei Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jia-Hui Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xin-Yue Chai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yan-Ying Zhu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| |
Collapse
|
8
|
Divergent Reactions between Alkynes and Dibenzenesulfonimide: Selective Synthesis of Ynamides and Enamides under Metal‐Free Conditions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
9
|
Tang L, Wang J, Xia X, Zuo H, Choi K, Shin D. Synthesis of
E
/
Z N
‐(1‐Chlorovinyl)formamide Using Vilsmeier–Haack Reaction. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11673] [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)
- Linlin Tang
- College of Pharmaceutical SciencesSouthwest University Chongqing 400715 China
| | - Jingtao Wang
- College of Pharmaceutical SciencesSouthwest University Chongqing 400715 China
| | - Xiaojiao Xia
- College of Pharmaceutical SciencesSouthwest University Chongqing 400715 China
| | - Hua Zuo
- College of Pharmaceutical SciencesSouthwest University Chongqing 400715 China
| | - Kyung‐Min Choi
- Department of ChemistryChangwon National University Changwon 51140 South Korea
| | - Dong‐Soo Shin
- Department of ChemistryChangwon National University Changwon 51140 South Korea
| |
Collapse
|
10
|
Sun JS, Liu M, Zhang J, Dong L. Cobalt(III)-Catalyzed C–H Amidation of 7-Azaindoles with Dioxazolones: Synthesis of 7-Azaindole Amidated Derivatives. J Org Chem 2018; 83:10555-10563. [PMID: 30019899 DOI: 10.1021/acs.joc.8b01354] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jun-Shu Sun
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Man Liu
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jing Zhang
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Lin Dong
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| |
Collapse
|
11
|
Yang T, Fan X, Zhao X, Yu W. Iron-Catalyzed Acyl Migration of Tertiary α-Azidyl Ketones: Synthetic Approach toward Enamides and Isoquinolones. Org Lett 2018; 20:1875-1879. [DOI: 10.1021/acs.orglett.8b00409] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tonghao Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xing Fan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaopeng Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
12
|
Li WH, Dong L. Synthesis of 7-Azaindole Amidated Derivatives: An Efficient Usage of Acyl Azides as the Nitrogen Source. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701336] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wei-Huan Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry; West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry; West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| |
Collapse
|
13
|
Luo X, Wang S, Xi C. Cp2TiCl2-catalyzed highly regioselective hydroamination of styrenes with hydroxylamines. Org Chem Front 2018. [DOI: 10.1039/c7qo01068k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An efficient Cp2TiCl2-catalyzed one-pot two-step hydroamination procedure that allows the direct formation of tertiary amines from styrenes and an electrophilic nitrogen source has been reported with high regioselectivity.
Collapse
Affiliation(s)
- Xuewei Luo
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Sheng Wang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| |
Collapse
|
14
|
Baldassari LL, de la Torre A, Li J, Lüdtke DS, Maulide N. Ynamide Preactivation Allows a Regio- and Stereoselective Synthesis of α,β-Disubstituted Enamides. Angew Chem Int Ed Engl 2017; 56:15723-15727. [PMID: 29032598 DOI: 10.1002/anie.201709128] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Indexed: 12/13/2022]
Abstract
A novel ynamide preactivation strategy enables the use of otherwise incompatible reagents and allows preparation of α,β-disubstituted enamides with high regio- and stereoselectivity. Mechanistic analysis reveals the intermediacy of a triflate-bound intermediate as a solution-stable, effective keteniminium reservoir, whilst still allowing subsequent addition of organometallic reagents.
Collapse
Affiliation(s)
- Lucas L Baldassari
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501-970, Porto Alegre, RS, Brazil
| | - Aurélien de la Torre
- Institute of Organic Chemistry, University of Vienna, Währinger Strassee 38, 1090, Vienna, Austria
| | - Jing Li
- Institute of Organic Chemistry, University of Vienna, Währinger Strassee 38, 1090, Vienna, Austria
| | - Diogo S Lüdtke
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501-970, Porto Alegre, RS, Brazil
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strassee 38, 1090, Vienna, Austria
| |
Collapse
|
15
|
Baldassari LL, de la Torre A, Li J, Lüdtke DS, Maulide N. Regio- und stereoselektive Synthese α,β-disubstituierter Enamide durch Voraktivierung von Inamiden. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lucas L. Baldassari
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves 9500 91501-970 Porto Alegre RS Brasilien
| | - Aurélien de la Torre
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Jing Li
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Diogo S. Lüdtke
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves 9500 91501-970 Porto Alegre RS Brasilien
| | - Nuno Maulide
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| |
Collapse
|
16
|
Yan X, Xi C. Advances in transmetalation reactions originated from organozirconium compounds. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
17
|
Xu Y, Liu XY, Wang ZQ, Tang LF. A convenient synthesis of N -vinyl enamides via the lithiation and ring-opening reaction of 2-phenyl-2-oxazolines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
18
|
Froidevaux V, Negrell C, Caillol S, Pascault JP, Boutevin B. Biobased Amines: From Synthesis to Polymers; Present and Future. Chem Rev 2016; 116:14181-14224. [DOI: 10.1021/acs.chemrev.6b00486] [Citation(s) in RCA: 349] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Vincent Froidevaux
- Institut Charles Gerhardt UMR 5253–CNRS, UM, ENSCM, 8 rue de l’Ecole Normale, F-34296 Montpellier Cedex 5, France
| | - Claire Negrell
- Institut Charles Gerhardt UMR 5253–CNRS, UM, ENSCM, 8 rue de l’Ecole Normale, F-34296 Montpellier Cedex 5, France
| | - Sylvain Caillol
- Institut Charles Gerhardt UMR 5253–CNRS, UM, ENSCM, 8 rue de l’Ecole Normale, F-34296 Montpellier Cedex 5, France
| | - Jean-Pierre Pascault
- INSA-Lyon, IMP, UMR5223, F-69621 Villeurbanne, France
- Université de Lyon, F-69622 Lyon, France
| | - Bernard Boutevin
- Institut Charles Gerhardt UMR 5253–CNRS, UM, ENSCM, 8 rue de l’Ecole Normale, F-34296 Montpellier Cedex 5, France
| |
Collapse
|
19
|
Jiao J, Wang S, Chen C, Liu Q, Xi C. Directly Oxidative Cross-Coupling between Alkenylzirconocene and Alkynylcopper Reagents. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiajia Jiao
- Institute
of Chemistry and Chemical Engineering, Hebei Normal University, Shijiazhuang 050091, People’s Republic of China
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Sheng Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Qingbin Liu
- Institute
of Chemistry and Chemical Engineering, Hebei Normal University, Shijiazhuang 050091, People’s Republic of China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| |
Collapse
|
20
|
Wang S, Shao P, Chen C, Xi C. Copper-Catalyzed Carboxylation of Alkenylzirconocenes with Carbon Dioxide Leading to α,β-Unsaturated Carboxylic Acids. Org Lett 2015; 17:5112-5. [DOI: 10.1021/acs.orglett.5b02619] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sheng Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Peng Shao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
21
|
Yan X, Xi C. Conversion of zirconacyclopentadienes into metalloles: Fagan-Nugent reaction and beyond. Acc Chem Res 2015; 48:935-46. [PMID: 25831225 DOI: 10.1021/ar500429f] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metalloles are derivatives of cyclopentadiene in which the methylene unit is replaced by a heteroatom, such as S, Se, Te, N, P, As, Sb, Bi, Si, Ge, Sn, B, Al, Ga, and so on. Many metallole derivatives have been widely used as photovoltaic cells, organic light emitting diodes (OLEDs), chemical sensors, electrochromic devices, microelectronic actuators, and organic field effect transistors (OFETs). In the meantime, many of them showed promising biological actives. Due to the similarity to cyclopentadiene, the anionic forms of metalloles were also widely explored in coordination chemistry. As a result, development of a general method for the formation of metalloles from available starting materials is highly desired. In this Account, we outline formation of various p-block element metalloles from zirconacyclopentadienes. The zirconacyclopentadienes can be easily prepared from two molecules of alkynes and a low-valent zirconocene species "Cp2Zr(II)" (Cp = cyclopentadienyl). Fagan and Nugent first reported the formation of main group metalloles from zirconacyclopentadiene, which provided a versatile approach for the construction of metalloles, especially for the formation of metalloles in heavier p-block elements. To further expand the substrate scope, a number of stepwise conversions were developed, which involve 1,4-dimetallo- or dihalo-1,3-butadiene as intermediates from zirconacyclopentadienes. Here, four processes are classified based on direct and indirect conversion of zirconacyclopentadienes into metalloles. Direct reaction of zirconacyclopentadienes with element halides afforded heterocycles of main group elements, which provided a versatile method for the synthesis of metalloles. Nonetheless, the reaction scope was restricted to heavier p-block elements such as S, Se, P, As, Sb, Bi, Ge, Sn, Ga, and In. And these reactions usually suffered low yields and long reaction time. Transmetalation of zirconacyclopentadiene with copper chloride greatly enriched the zirconacyclopentadiene chemistry. The synthesis of stannoles and pyrroles from zirconacyclopentadienes has been developed in the presence of CuCl. The direct reaction of the zirconacyclopentadienes with SiCl4 or R2SiCl2 does not give the desired silacyclopendadiene derivatives, even in the presence of CuCl. It can be circumvented by using dilithiated dienes from diiododienes, which are easily prepared by the iodination of zirconacyclopentadienes using CuCl as an additive. Finally, an umpolung strategy, reaction of electrophilic 1,4-diiodo-1,3-butadiene with nucleophilic amine or sulfide reagents, was successfully used in the formation of pyrroles and thiophenes.
Collapse
Affiliation(s)
- Xiaoyu Yan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
22
|
Dwivedi V, Hari Babu M, Kant R, Sridhar Reddy M. N-Substitution dependent stereoselectivity switch in palladium catalyzed hydroalkynylation of ynamides: a regio and stereoselective synthesis of ynenamides. Chem Commun (Camb) 2015; 51:14996-9. [DOI: 10.1039/c5cc06251a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A palladium catalysed regioselective hydroalkynylation of ynamides for ynenamides is achieved with an N-substitution dependent stereoselectivity switch.
Collapse
Affiliation(s)
- Vikas Dwivedi
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Madala Hari Babu
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ruchir Kant
- Molecular & Structural Biology Division
- CSIR-CDRI
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| |
Collapse
|
23
|
Yan Z, Xu Y, Tian W. A new and concise way to enamides by fluoroalkanosulfonyl fluoride mediated Beckmann rearrangement of α,β-unsaturated ketoximes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
24
|
Arigela RK, Kumar R, Joshi T, Mahar R, Kundu B. Ruthenium(ii)-catalyzed C–H activation/C–N bond formation via in situ generated iminophosphorane as the directing group: construction of annulated pyridin-2(1H)-ones. RSC Adv 2014. [DOI: 10.1039/c4ra10105g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
|
25
|
Yan X, Chen C, Xi C. Zirconoarylation of alkynes through p-chloranil-promoted reductive elimination of arylzirconates. Beilstein J Org Chem 2014; 10:528-34. [PMID: 24605170 PMCID: PMC3943479 DOI: 10.3762/bjoc.10.48] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 02/07/2014] [Indexed: 11/23/2022] Open
Abstract
A novel method for the zirconoarylation of alkynes was developed. TCQ-promoted reductive elimination of arylzirconate [LiCp2ZrAr(RC≡CR)], which was prepared by the reaction of zirconocene-alkyne complexes with aryllithium compounds, afforded trisubstituted alkenylzirconocenes. This reaction can afford multi-substituted olefins with high stereoselectivity.
Collapse
Affiliation(s)
- Xiaoyu Yan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China ; State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
26
|
Abstract
This perspective encompasses the recent trends and developments in copper-catalyzed electrophilic amination for the construction of various amines and their derivatives.
Collapse
Affiliation(s)
- Xiaoyu Yan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084, China
| | - Xianghua Yang
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084, China
| |
Collapse
|
27
|
Yang Y, Wang L, Zhang J, Jin Y, Zhu G. An unprecedented Pd-catalyzed trans-addition of boronic acids to ynamides. Chem Commun (Camb) 2014; 50:2347-9. [DOI: 10.1039/c3cc49069f] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unusual Pd-catalyzed trans-addition of boronic acids to ynamides has been realized in this paper, providing α,β-disubstituted enamides in good yields with excellent regio- and stereoselectivity.
Collapse
Affiliation(s)
- Yuanfa Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004, China
| | - Lina Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004, China
| | - Jieni Zhang
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004, China
| | - Yali Jin
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004, China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Zhejiang Normal University
- Jinhua 321004, China
- Department of Chemistry
- Zhejiang Normal University
| |
Collapse
|
28
|
Zhou Y, Yan X, Chen C, Xi C. Copper-Mediated Reaction of Zirconacyclopentadienes with Azides: A One-Pot Three-Component Synthesis of Multiply Substituted Pyrroles from One Azide and Two Alkynes. Organometallics 2013. [DOI: 10.1021/om400988g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yiqing Zhou
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xiaoyu Yan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- State Key Laboratory
of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| |
Collapse
|