1
|
Li X, Wang X, Zhang J. Ruthenium-catalysed decarboxylative unsymmetric dual ortho-/ meta-C-H bond functionalization of arenecarboxylic acids. Chem Sci 2023; 14:5470-5476. [PMID: 37234909 PMCID: PMC10208063 DOI: 10.1039/d3sc01226c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/04/2023] [Indexed: 05/28/2023] Open
Abstract
Here, we describe a ruthenium-catalysed decarboxylative unsymmetric ortho-C-H azaarylation/meta-C-H alkylation via a traceless directing group relay strategy. The installation of a 2-pyridyl functionality via carboxyl directed ortho-C-H activation is critical to promote decarboxylation and enable meta-C-H bond alkylation to streamline the synthesis of 4-azaaryl-benzo-fused five-membered heterocycles. This protocol is characterized by high regio- and chemoselectivity, broad substrate scopes, and good functional group tolerance under redox-neutral conditions.
Collapse
Affiliation(s)
- Xiankai Li
- The Institute for Advanced Studies, Wuhan University Wuhan Hubei Province 430072 China
| | - Xiaofei Wang
- The Institute for Advanced Studies, Wuhan University Wuhan Hubei Province 430072 China
| | - Jing Zhang
- The Institute for Advanced Studies, Wuhan University Wuhan Hubei Province 430072 China
| |
Collapse
|
2
|
Kitazawa Y, Kochi T, Kakiuchi F. Iron-Catalyzed Regio- and Stereoselective C-H Alkenylation of Pivalophenone Derivatives with Unsymmetric Internal Alkynes. J Org Chem 2023; 88:1890-1897. [PMID: 36637159 DOI: 10.1021/acs.joc.2c02608] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Here we report an ortho-C-H alkenylation of aromatic ketones with unsymmetric internal alkynes catalyzed by an iron phosphine complex, Fe(PMe3)4. The use of a catalytic amount of PtBu3 as an additive was found to improve the product yields. The alkenylation proceeds regio- and stereoselectively to give the corresponding styrene derivatives.
Collapse
Affiliation(s)
- Yoichi Kitazawa
- Department of Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Kanagawa 223-8522, Japan
| | - Takuya Kochi
- Department of Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Kanagawa 223-8522, Japan
| | - Fumitoshi Kakiuchi
- Department of Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Kanagawa 223-8522, Japan
| |
Collapse
|
3
|
Vuagnat M, Tognetti V, Jubault P, Besset T. Ru(II)-Catalyzed Hydroarylation of in situ Generated 3,3,3-Trifluoro-1-propyne by C-H Bond Activation: A Facile and Practical Access to β-Trifluoromethylstyrenes. Chemistry 2022; 28:e202201928. [PMID: 35736795 PMCID: PMC9804422 DOI: 10.1002/chem.202201928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/05/2023]
Abstract
In this study, a practical and straightforward synthesis of β-(E)-trifluoromethylstyrenes by ruthenium-catalyzed C-H bond activation was developed. The readily available and inexpensive 2-bromo-3,3,3-trifluoropropene (BTP), a non-ozone depleting reagent, was used as a reservoir of 3,3,3-trifluoropropyne. With this approach, the monofunctionalization of a panel of heteroarenes was possible in a safe and scalable manner (23 examples, up to 87 % yield). Mechanistic investigations and density functional theory (DFT) calculations were also conducted to get a better understanding of the mechanism of this transformation. These studies suggested that 1) a cyclometallated ruthenium complex enabled the transformation, 2) this complex exhibited high efficiency in this transformation compared to the commercially available [RuCl2 (p-cymene)]2 and 3) the mechanism proceeded through a bis-cyclometallated ruthenium intermediate for the carboruthenation step.
Collapse
Affiliation(s)
- Martin Vuagnat
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| | - Vincent Tognetti
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| | - Philippe Jubault
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| | - Tatiana Besset
- Normandie UnivINSA RouenUNIROUENCNRSCOBRA (UMR 6014)76000RouenFrance
| |
Collapse
|
4
|
Qi SL, Liu YP, Li Y, Luan YX, Ye M. Ni-catalyzed hydroarylation of alkynes with unactivated β-C(sp 2)-H bonds. Nat Commun 2022; 13:2938. [PMID: 35618702 PMCID: PMC9135730 DOI: 10.1038/s41467-022-30367-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 04/28/2022] [Indexed: 12/26/2022] Open
Abstract
Hydroarylation of alkynes with unactivated C(sp2)-H bonds via chelated C-H metalation mainly occurs at γ-position to the coordinating atom of directing groups via stable 5-membered metallacycles, while β-C(sp2)-H bond-involved hydroarylation has been a formidable challenge. Herein, we used a phosphine oxide-ligated Ni-Al bimetallic catalyst to enable β-C-H bond-involved hydroarylations of alkynes via a rare 7-membered nickelacycle.
Collapse
Affiliation(s)
- Shao-Long Qi
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yu-Peng Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yi Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yu-Xin Luan
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Mengchun Ye
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China. .,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
| |
Collapse
|
5
|
Fu Z, Cao X, Yin J, Gou Z, Yi X, Cai H. ortho-C—H Bond Functionalization of Carboxylic Acid Using Carboxyl as a Traceless Directing Group Based on the Strategy of “Two Birds with One Stone”. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202106024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
6
|
Shen C, Zhu Y, Jin S, Xu K, Luo S, Xu L, Zhong G, Zhong L, Zhang J. Regio- and stereo-selective olefinic C–H functionalization of aryl alkenes in ethanol. Org Chem Front 2022. [DOI: 10.1039/d1qo01676h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report on α- and β-olefinic C–H alkenylation of 2-alkenyl benzylamine/benzoic acid derivatives in ethanol to afford aryl dienes/trienes with excellent selectivities, proceeding through 6-/7-membered exo-/endo-cyclometallation.
Collapse
Affiliation(s)
- Cong Shen
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Yuhang Zhu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Shuqi Jin
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Kejie Xu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Shuxin Luo
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China
| | - Lixia Xu
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China
| | - Guofu Zhong
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Liangjun Zhong
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China
| | - Jian Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, People's Republic of China
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China
| |
Collapse
|
7
|
You Q, Liao M, Feng H, Huang J. Microwave-assisted decarboxylative reactions: advanced strategies for sustainable organic synthesis. Org Biomol Chem 2022; 20:8569-8583. [DOI: 10.1039/d2ob01677j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Recent advances in the microwave-assisted decarboxylative reactions of carboxylic acids and their derivatives, including transition-metal-catalyzed and metal-free approaches, are summarized.
Collapse
Affiliation(s)
- Qingqing You
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
- China State Institute of Pharmaceutical Industry, Shanghai Institute of Pharmaceutical Industry, State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai 201203, China
| | - Mingjie Liao
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
- China State Institute of Pharmaceutical Industry, Shanghai Institute of Pharmaceutical Industry, State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai 201203, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Junhai Huang
- China State Institute of Pharmaceutical Industry, Shanghai Institute of Pharmaceutical Industry, State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai 201203, China
| |
Collapse
|
8
|
Yang S, Dai C, Chen Y, Jiang Y, Shu S, Huang Z, Zhao Y. Ruthenium(II)‐Catalyzed Cross‐Coupling of Benzoyl Formic Acids with Toluenes: Synthesis of 2‐Phenylacetophenones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100432] [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)
- Shan Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
| | - Chenyang Dai
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
| | - Yujie Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
| | - Yaqiqi Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
| | - Sai Shu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
| | - Zhibin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical, Engineering and Materials Science Soochow University 199 Renai Street Suzhou Jiangsu 215123 China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 China
| |
Collapse
|
9
|
Hu Z, Belitz F, Zhang G, Papp F, Gooßen LJ. Ru-Catalyzed ( E)-Specific ortho-C-H Alkenylation of Arenecarboxylic Acids by Coupling with Alkenyl Bromides. Org Lett 2021; 23:3541-3545. [PMID: 33885311 DOI: 10.1021/acs.orglett.1c00956] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the presence of [p-cymene)RuCl2]2, (E)-configured alkenyl bromides couple with aromatic carboxylates to form ortho-vinylbenzoic acids. This C-H vinylation proceeds in high yields without any activating phosphine ligands and has an excellent functional group tolerance. Starting from commonly available (E/Z )-mixtures of alkenyl bromides, (E)-configured vinyl arenes or dienes are formed exclusively. Mechanistic studies show that this selectivity is achieved because the (E)-configured alkenyl bromides undergo a smooth coupling, whereas the (Z)-isomers are rapidly eliminated with the formation of alkynes.
Collapse
Affiliation(s)
- Zhiyong Hu
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Florian Belitz
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Guodong Zhang
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Florian Papp
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Lukas J Gooßen
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| |
Collapse
|
10
|
Gao Y, Zhang M, Wang C, Yang Z, Huang X, Feng R, Qi C. Cobalt(ii)-catalyzed hydroarylation of 1,3-diynes and internal alkynes with picolinamides promoted by alcohol. Chem Commun (Camb) 2020; 56:14231-14234. [PMID: 33118558 DOI: 10.1039/d0cc05616b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Co(ii)-catalyzed selective C-H alkenylation of picolinamides with 1,3-diynes has been developed. This protocol can be applied to a variety of 1,3-diynes. In addition, both symmetrical and unsymmetrical internal alkynes were well tolerated, affording the corresponding alkenyl arenes. Moreover, control experiments indicated that C-H bond cleavage may be involved in the rate-determining step. Furthermore, a deuterium incorporation product was achieved when deuterated alcohol was employed as the solvent, which suggested that alcohol was essential for the final protonolysis.
Collapse
Affiliation(s)
- Yuan Gao
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China.
| | | | | | | | | | | | | |
Collapse
|
11
|
Yugandar S, Morita T, Nakamura H. Rhodium(III)-catalysed decarboxylative C-H functionalization of isoxazoles with alkenes and sulfoxonium ylides. Org Biomol Chem 2020; 18:8625-8628. [PMID: 33084719 DOI: 10.1039/d0ob02027c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Decarboxylative C-H functionalization of isoxazoles with electron-deficient alkenes and sulfoxonium ylides at the C5 position was achieved in the presence of rhodium(iii) catalysts to give the corresponding alkenylation and acylmethylation products, respectively.
Collapse
Affiliation(s)
- Somaraju Yugandar
- Laboratory of Chemistry and Life Science, Innovative Institute of Research Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
| | - Taiki Morita
- Laboratory of Chemistry and Life Science, Innovative Institute of Research Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
| | - Hiroyuki Nakamura
- Laboratory of Chemistry and Life Science, Innovative Institute of Research Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
| |
Collapse
|
12
|
Lapuh MI, Mazeh S, Besset T. Chiral Transient Directing Groups in Transition-Metal-Catalyzed Enantioselective C–H Bond Functionalization. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03317] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maria I. Lapuh
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Sara Mazeh
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| |
Collapse
|
13
|
Yu S, Lv N, Hong C, Liu Z, Zhang Y. Rh-Catalyzed Annulation of Benzoic Acids, Formaldehyde, and Malonates via ortho-Hydroarylation to Indanones. Org Lett 2020; 22:8354-8358. [PMID: 33157567 DOI: 10.1021/acs.orglett.0c02986] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A three-component reaction from readily available low-cost materials of benzoic acids, formaldehyde, and malonates for the preparation of indanones by rhodium catalysis is reported. The annulation is initiated by an ortho-hydroarylation of benzoic acids, and a Lewis acid is not required. The solvent has a significant influence to the reaction, and 2-substituted or nonsubstituted indanones are obtained by the change of solvent.
Collapse
Affiliation(s)
- Shuling Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Ningning Lv
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Chao Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhanxiang Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuhong Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
14
|
Berlinck RGS, Bernardi DI, Fill T, Fernandes AAG, Jurberg ID. The chemistry and biology of guanidine secondary metabolites. Nat Prod Rep 2020; 38:586-667. [PMID: 33021301 DOI: 10.1039/d0np00051e] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: 2017-2019Guanidine natural products isolated from microorganisms, marine invertebrates and terrestrial plants, amphibians and spiders, represented by non-ribosomal peptides, guanidine-bearing polyketides, alkaloids, terpenoids and shikimic acid derived, are the subject of this review. The topics include the discovery of new metabolites, total synthesis of natural guanidine compounds, biological activity and mechanism-of-action, biosynthesis and ecological functions.
Collapse
Affiliation(s)
- Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | | | | | | | | |
Collapse
|
15
|
Rani G, Luxami V, Paul K. Traceless directing groups: a novel strategy in regiodivergent C-H functionalization. Chem Commun (Camb) 2020; 56:12479-12521. [PMID: 32985634 DOI: 10.1039/d0cc04863a] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The use of functional groups as internal ligands for assisting C-H functionalization, termed the chelation assisted strategy, is emerging as one of the most powerful tools for construction of C-C and C-X bonds from inert C-H bonds. However, there are various directing groups which cannot be either removed after functionalization or require some additional steps or reagents for their removal, thereby limiting the scope of structural diversity of the products, and the step and atom economy of the system. These limitations are overcome by the use of the traceless directing group (TDG) strategy wherein functionalization of the substrate and removal of the directing group can be carried out in a one pot fashion. Traceless directing groups serve as the most ideal chelation assisted strategy with a high degree of reactivity and selectivity without any requirement for additional steps for their removal. The present review overviews the use of various functional groups such as carboxylic acids, aldehydes, N-oxides, nitrones, N-nitroso amines, amides, sulfoxonium ylides and silicon tethered directing groups for assisting transition metal catalyzed C-H functionalization reactions in the last decade.
Collapse
Affiliation(s)
- Geetika Rani
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala-147001, India.
| | | | | |
Collapse
|
16
|
Spencer ARA, Korde R, Font M, Larrosa I. meta-Selective olefination of fluoroarenes with alkynes using CO 2 as a traceless directing group. Chem Sci 2020; 11:4204-4208. [PMID: 34122883 PMCID: PMC8152615 DOI: 10.1039/d0sc01138j] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 03/31/2020] [Indexed: 11/28/2022] Open
Abstract
Over the last few decades C-H olefination has received significant interest, due to the importance and usefulness of aryl olefins both as synthetic targets and intermediates. While a wide range of ortho-olefination protocols have been developed, only a small number of meta-olefinations are currently available. Importantly, the most common approach to meta-olefination, using a large meta-directing template, is not suitable for substrates such as fluorobenzenes, which cannot be derivatised. We report that the meta-selective olefination of fluoroarenes can be achieved via the use of CO2 as a traceless directing group, which can be easily installed and removed in a one-pot process. Furthermore, this approach avoids the use of stoichiometric Ag(i)-salts, commonly used in C-H olefinations, and affords complete meta- over ortho/para-regioselectivity.
Collapse
Affiliation(s)
- Andrew R A Spencer
- School of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| | - Rishi Korde
- School of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| | - Marc Font
- School of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| | - Igor Larrosa
- School of Chemistry, University of Manchester Oxford Road Manchester M13 9PL UK
| |
Collapse
|
17
|
Chang MY, Lai KX, Chang YL. In(OTf)3-catalyzed intramolecular hydroarylation of α-phenylallyl β-ketosulfones – synthesis of sulfonyl 1-benzosuberones and 1-tetralones. RSC Adv 2020; 10:18231-18244. [PMID: 35517185 PMCID: PMC9053753 DOI: 10.1039/d0ra01962c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/05/2020] [Indexed: 11/21/2022] Open
Abstract
In(OTf)3-catalyzed intramolecular hydroarylation of α-phenylallyl β-ketosulfones provides sulfonyl 1-benzosuberones and 1-tetralones in moderate to good yields in refluxing (CH2Cl)2 under open-vessel and easy-operation reaction conditions. A plausible mechanism is proposed and discussed. This highly regioselective protocol provides an atom-economic ring-closure route. In(OTf)3-catalyzed intramolecular hydroarylation of α-phenylallyl β-ketosulfones provides sulfonyl 1-benzosuberones and 1-tetralones in moderate to good yields in refluxing (CH2Cl)2 under open-vessel and easy-operation reaction conditions.![]()
Collapse
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Kai-Xiang Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Yu-Lun Chang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University Hospital
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| |
Collapse
|
18
|
Fu WC, Kwong FY. A denitrogenative palladium-catalyzed cascade for regioselective synthesis of fluorenes. Chem Sci 2019; 11:1411-1417. [PMID: 34123265 PMCID: PMC8148384 DOI: 10.1039/c9sc04062e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
We herein report a denitrogenative palladium-catalyzed cascade for the modular and regioselective synthesis of polysubstituted fluorenes. Hydrazone facilitates the Pd(ii) to Pd(iv) oxidative addition in a Catellani pathway and is also the methylene synthon in the proposed reaction. Aryl iodides and 2-bromoarylaldehyde hydrazones undergo a norbornene-controlled tandem reaction sequence to give a broad scope of fluorenes in the presence of a palladium catalyst. The method described is scalable and adaptable to a three-component reaction with in situ generation of the hydrazone group. Preliminary mechanistic investigations have been conducted.
Collapse
Affiliation(s)
- Wai Chung Fu
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong Shatin New Territories Hong Kong
| | - Fuk Yee Kwong
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong Shatin New Territories Hong Kong
| |
Collapse
|
19
|
Hu Z, Hu XQ, Zhang G, Gooßen LJ. Ring-Opening Ortho-C–H Allylation of Benzoic Acids with Vinylcyclopropanes: Merging Catalytic C–H and C–C Activation Concepts. Org Lett 2019; 21:6770-6773. [DOI: 10.1021/acs.orglett.9b02393] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhiyong Hu
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Xiao-Qiang Hu
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Guodong Zhang
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Lukas J. Gooßen
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| |
Collapse
|
20
|
Yugandar S, Nakamura H. Rhodium(iii)-catalysed carboxylate-directed C-H functionalizations of isoxazoles with alkynes. Chem Commun (Camb) 2019; 55:8382-8385. [PMID: 31219484 DOI: 10.1039/c9cc03283e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient oxidative [4+2] annulation of isoxazolyl-4-carboxylic acids with internal alkynes proceeded in the presence of the [Cp*RhCl2]2 catalyst. Oxidants controlled the formation of pyranoisoxazolones and isoquinolines. A decarboxylative approach for the hydroarylation of alkynes with isoxazolyl-4-carboxylic acids was also developed in the presence of the [Cp*Rh(CH3CN)3][SbF6]2 catalyst.
Collapse
Affiliation(s)
- Somaraju Yugandar
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
| |
Collapse
|
21
|
Mandal A, Mehta G, Dana S, Baidya M. Streamlined Ruthenium(II) Catalysis for One-Pot 2-fold Unsymmetrical C–H Olefination of (Hetero)Arenes. Org Lett 2019; 21:5879-5883. [DOI: 10.1021/acs.orglett.9b02008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Gunjan Mehta
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
22
|
Pu F, Liu Z, Zhang L, Fan J, Shi X. Switchable C−H Alkylation of Aromatic Acids with Maleimides in Water: Carboxyl as a Diverse Directing Group. ChemCatChem 2019. [DOI: 10.1002/cctc.201900444] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Fan Pu
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 P.R. China
| | - Zhong‐Wen Liu
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 P.R. China
| | - Lin‐Yan Zhang
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 P.R. China
| | - Juan Fan
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 P.R. China
| | - Xian‐Ying Shi
- Key Laboratory of Syngas Conversion of Shaanxi Province Key Laboratory for Macromolecular Science of Shaanxi Province Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 P.R. China
| |
Collapse
|
23
|
Yang Z, Pi C, Cui X, Wu Y. One-pot synthesis of pyranoquinolin-1-ones via Rh(iii)-catalysed redox annulation of 3-carboxyquinolines and alkynes. Org Chem Front 2019. [DOI: 10.1039/c9qo00710e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A highly efficient and simple one-pot procedure to synthesize 3,4-dihydro-pyrano[4,3-b]quinolin-1-ones via Rh(iii)-catalysed [4 + 2] redox annulation of 3-carboxyquinolines with internal alkynes.
Collapse
Affiliation(s)
- Zhijia Yang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Chao Pi
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Xiuling Cui
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Yangjie Wu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| |
Collapse
|
24
|
Li J, Zhang S, Lonka MR, Zhang J, Zou H. Rhodium(iii)-catalyzed cascade reactions of benzoic acids with dioxazolones: discovery of 2,5-substituted benzoxazinones as AIE molecules. Chem Commun (Camb) 2019; 55:11203-11206. [DOI: 10.1039/c9cc05178c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rhodium-catalyzed cascade reactions of benzoic acids with 1,4,2-dioxazol-5-ones afford 2,5-substituted benzoxazinones, which exhibited AIE properties with an ESIPT phenomenon.
Collapse
Affiliation(s)
- Jinbiao Li
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | - Shuaizhong Zhang
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | | | - Jinquan Zhang
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| | - Hongbin Zou
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- P. R. China
| |
Collapse
|
25
|
Chang YC, Prakash S, Cheng CH. ReI-Catalyzed highly regio- and stereoselective C–H addition to terminal and internal alkynes. Org Chem Front 2019. [DOI: 10.1039/c8qo01068d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Re(i)-Catalyzed ortho alkenylation of arylpyridines and N-pyrimidyl indoles with alkynes provides excellent regio- and stereoselectivity with lower catalytic loadings.
Collapse
Affiliation(s)
- Yu-Che Chang
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Sekar Prakash
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Chien-Hong Cheng
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| |
Collapse
|
26
|
Li Z, Duan W. Palladium‐Catalyzed C−H Alkenylation of Arenes with Alkynes: Stereoselective Synthesis of Vinyl Chlorides via a 1,4‐Chlorine Migration. Angew Chem Int Ed Engl 2018; 57:16041-16045. [DOI: 10.1002/anie.201808866] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/25/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Zhen Li
- College of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Road Yangzhou 225002 China
| | - Wei‐Liang Duan
- College of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Road Yangzhou 225002 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
| |
Collapse
|
27
|
Takahashi K, Morishita H, Ogiwara Y, Sakai N. Group 4 Metallocene Difluoride/Palladium Bimetallic Catalysts for the Reductive Cross-Coupling of Alkynes with Aryl Iodides and Bromides. J Org Chem 2018; 83:13734-13742. [PMID: 30359018 DOI: 10.1021/acs.joc.8b02055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel protocol has been developed for the selective synthesis of ( E)-alkenes via the reductive cross-coupling of alkynes and aryl halides using a bimetallic catalyst system composed of a group 4 metallocene difluoride (Cp2[M]F2; [M] = Hf or Zr; Cp = cyclopentadienide) and palladium dichloride. This reaction proceeds via a coupling between an aryl halide and an in situ generated alkenyl metallocene intermediate derived from the group 4 metallocene difluoride, a hydrosilane, and an alkyne. For a catalytic reductive coupling, the addition of sodium fluoride (NaF) to the reaction system is required. Moreover, in the presence of NaF, a ligand exchange was observed by NMR spectroscopy in hafnocene diiodide (Cp2HfI2) to afford hafnocene difluoride (Cp2HfF2).
Collapse
Affiliation(s)
- Keita Takahashi
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science (RIKADAI) , Noda , Chiba 278-8510 , Japan
| | - Hiromitsu Morishita
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science (RIKADAI) , Noda , Chiba 278-8510 , Japan
| | - Yohei Ogiwara
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science (RIKADAI) , Noda , Chiba 278-8510 , Japan
| | - Norio Sakai
- Department of Pure and Applied Chemistry, Faculty of Science and Technology , Tokyo University of Science (RIKADAI) , Noda , Chiba 278-8510 , Japan
| |
Collapse
|
28
|
Li Z, Duan W. Palladium‐Catalyzed C−H Alkenylation of Arenes with Alkynes: Stereoselective Synthesis of Vinyl Chlorides via a 1,4‐Chlorine Migration. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808866] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhen Li
- College of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Road Yangzhou 225002 China
| | - Wei‐Liang Duan
- College of Chemistry and Chemical EngineeringYangzhou University 180 Siwangting Road Yangzhou 225002 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
| |
Collapse
|
29
|
Dana S, Chowdhury D, Mandal A, Chipem FAS, Baidya M. Ruthenium(II) Catalysis/Noncovalent Interaction Synergy for Cross-Dehydrogenative Coupling of Arene Carboxylic Acids. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03392] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Deepan Chowdhury
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | | | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
30
|
Xu JX, Wu XF. Palladium-Catalyzed Decarboxylative Carbonylative Transformation of Benzyl Aryl Carbonates: Direct Synthesis of Aryl 2-Arylacetates. Org Lett 2018; 20:5938-5941. [PMID: 30178672 DOI: 10.1021/acs.orglett.8b02631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A procedure on palladium-catalyzed decarboxylative alkoxycarbonylation of carbonates for the synthesis of aryl 2-arylacetates has been developed. A broad range of aryl 2-arylacetates were obtained in good yields under mild conditions under a carbon monoxide atmosphere. Interestingly, other alcohols can be added as nucleophiles as well, and the corresponding esters were also obtained in good yields.
Collapse
Affiliation(s)
- Jian-Xing Xu
- Leibniz-Institut für Katalyse an der Universität Rostock e. V. , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse an der Universität Rostock e. V. , Albert-Einstein-Straße 29a , 18059 Rostock , Germany
| |
Collapse
|
31
|
Reddy C, Sridhar B, V. Subba Reddy B. Ru(II)-Catalyzed Oxidative Functionalization of Arylhydrazine-1,2-dicarboxylates with Internal Alkynes for the Synthesis of Enecarbamates. ACS OMEGA 2018; 3:9746-9753. [PMID: 31459104 PMCID: PMC6644781 DOI: 10.1021/acsomega.8b01118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 08/09/2018] [Indexed: 06/10/2023]
Abstract
A novel method has been developed for the synthesis of highly substituted enecarbamates and trisubstituted alkenes from arylhydrazine-1,2-dicarboxylates and 1,2-disubstituted alkynes through a sequential C-C and C-N bond formation. It is entirely a new strategy to produce enecarbamates in a highly regio- and stereoselective manner.
Collapse
Affiliation(s)
- Chatrala
Ravikumar Reddy
- Centre
for Semiochemicals and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Balasubramanian Sridhar
- Centre
for Semiochemicals and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Basi V. Subba Reddy
- Centre
for Semiochemicals and Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| |
Collapse
|
32
|
Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1105] [Impact Index Per Article: 184.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
Collapse
Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| |
Collapse
|
33
|
Kumar GS, Chand T, Singh D, Kapur M. Ruthenium-Catalyzed C–H Functionalization of Benzoic Acids with Allyl Alcohols: A Controlled Reactivity Switch between C–H Alkenylation and C–H Alkylation Pathways. Org Lett 2018; 20:4934-4937. [DOI: 10.1021/acs.orglett.8b02064] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gangam Srikanth Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, MP 462066, India
| | - Tapasi Chand
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, MP 462066, India
| | - Diksha Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, MP 462066, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, MP 462066, India
| |
Collapse
|
34
|
Hu XQ, Hu Z, Trita AS, Zhang G, Gooßen LJ. Carboxylate-directed C-H allylation with allyl alcohols or ethers. Chem Sci 2018; 9:5289-5294. [PMID: 29997885 PMCID: PMC6001406 DOI: 10.1039/c8sc01741g] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 05/20/2018] [Indexed: 12/29/2022] Open
Abstract
A [Ru(p-cymene)Cl2]2 catalyst activates allyl alcohols and ethers for the regioselective ortho-C-H allylation of aromatic and heteroaromatic carboxylates. The reaction is orthogonal to most C-H functionalisations with allyl alcohols in that allyl arenes rather than carbonyl compounds are obtained. A wide range of substrates are thus smoothly transformed to allylarenes at 50 °C in phosphate-buffered 2,2,2-trichloroethanol. The reaction concept combines the use of abundant reagents and directing groups in a sustainable, waste-minimised method for C-C bond formation.
Collapse
Affiliation(s)
- Xiao-Qiang Hu
- Evonik Chair of Organic Chemistry , Ruhr-Universität Bochum , ZEMOS, Universitätsstr. 150 , 44801 Bochum , Germany .
| | - Zhiyong Hu
- Evonik Chair of Organic Chemistry , Ruhr-Universität Bochum , ZEMOS, Universitätsstr. 150 , 44801 Bochum , Germany .
| | - A Stefania Trita
- Evonik Chair of Organic Chemistry , Ruhr-Universität Bochum , ZEMOS, Universitätsstr. 150 , 44801 Bochum , Germany .
| | - Guodong Zhang
- Evonik Chair of Organic Chemistry , Ruhr-Universität Bochum , ZEMOS, Universitätsstr. 150 , 44801 Bochum , Germany .
| | - Lukas J Gooßen
- Evonik Chair of Organic Chemistry , Ruhr-Universität Bochum , ZEMOS, Universitätsstr. 150 , 44801 Bochum , Germany .
| |
Collapse
|
35
|
Mandal A, Dana S, Chowdhury D, Baidya M. RuII
-Catalyzed Annulative Coupling of Benzoic Acids with Vinyl Sulfone via Weak Carboxylate-Assisted C−H Bond Activation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800176] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Anup Mandal
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 Tamil Nadu India
| | - Suman Dana
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 Tamil Nadu India
| | - Deepan Chowdhury
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 Tamil Nadu India
| | - Mahiuddin Baidya
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 Tamil Nadu India
| |
Collapse
|
36
|
Affiliation(s)
- Chengming Wang
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Magnus Rueping
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- King Abdullah University of Science and Technology (KAUST), KAUST, Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| |
Collapse
|
37
|
Tulichala RNP, Shankar M, Swamy KCK. Palladium-Catalyzed Decarboxylative ortho-Amidation of Indole-3-carboxylic Acids with Isothiocyanates Using Carboxyl as a Deciduous Directing Group. J Org Chem 2018; 83:4375-4383. [PMID: 29554415 DOI: 10.1021/acs.joc.8b00042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Palladium-catalyzed ortho-amidation of indole-3-carboxylic acids with isothiocyanates by using the deciduous directing group nature of carboxyl functionality to afford indole-2-amides is demonstrated. Both C-H functionalization and decarboxylation took place in one pot, and hence, this carboxyl group served as a unique, deciduous (or traceless) directing group. This reaction offers a broad substrate scope as demonstrated for several other heterocyclic carboxylic acids like chromene-3-carboxylic acid, imidazo[1,2- a]pyridine-2-carboxylic acid, benzofuran-2-carboxylic acid, pyrrole-2-carboxylic acid, and thiophene-2-carboxylic acid. In the reaction using 2-naphthoic acid, of the two possible isomers, only one isomer of the amide was exclusively formed. The indole-2-amide product underwent palladium-catalyzed C-H functionalization to afford the diindole-fused 2-pyridones by combining two molecules of the indole moiety, with the elimination of an amide group from one of them, attached at the C3-position for the C-C/C-N bond formation. The structures of key products are confirmed by X-ray crystallography.
Collapse
Affiliation(s)
- R N Prasad Tulichala
- School of Chemistry , University of Hyderabad , Hyderabad , Telangana 500 046 , India
| | - Mallepalli Shankar
- School of Chemistry , University of Hyderabad , Hyderabad , Telangana 500 046 , India
| | - K C Kumara Swamy
- School of Chemistry , University of Hyderabad , Hyderabad , Telangana 500 046 , India
| |
Collapse
|
38
|
Chang CH, Chou CM. Palladium-Catalyzed Decarboxylative γ-Olefination of 2,5-Cyclohexadiene-1-carboxylic Acid Derivatives with Vinyl Halides. Org Lett 2018. [PMID: 29537274 DOI: 10.1021/acs.orglett.8b00486] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study explores a Pd-catalyzed decarboxylative Heck-type Csp3-Csp2 coupling reaction of 2,5-cyclohexadiene-1-carboxylic acid derivatives with vinyl halides to provide γ-olefination products. The olefinated 1,3-cyclohexadienes can be further oxidized to produce meta-alkylated stilbene derivatives. Additionally, the conjugated diene products can also undergo a Diels-Alder reaction to produce a bicyclo[2.2.2]octadiene framework.
Collapse
Affiliation(s)
- Chi-Hao Chang
- Department of Applied Chemistry , National University of Kaohsiung , 700 Kaohsiung University Road , Nanzih District, Kaohsiung 81148 , Taiwan
| | - Chih-Ming Chou
- Department of Applied Chemistry , National University of Kaohsiung , 700 Kaohsiung University Road , Nanzih District, Kaohsiung 81148 , Taiwan
| |
Collapse
|
39
|
Wang L, Liu X, Liu JB, Shen J, Chen Q, He MY. Multicomponent Synthesis of Isoindolinone Frameworks via Rh III -Catalysed in situ Directing Group-Assisted Tandem Oxidative Olefination/Michael Addition. Chem Asian J 2018; 13:765-769. [PMID: 29393595 DOI: 10.1002/asia.201800120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Indexed: 01/14/2023]
Abstract
A RhIII -catalysed three-component synthesis of isoindolinone frameworks via direct assembly of benzoyl chlorides, o-aminophenols and activated alkenes has been developed. The process involves in situ generation of o-aminophenol (OAP)-based bidentate directing group (DG), RhIII -catalysed tandem ortho C-H olefination and subsequent cyclization via aza-Michael addition. This protocol exhibits good chemoselectivity and functional group tolerance. Computational studies showed that the presence of hydroxyl group on the N-aryl ring could enhance the chemoselectivity of the reaction.
Collapse
Affiliation(s)
- Liang Wang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Xi Liu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Jian-Biao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institute of Molecular, and Nano Science, Shandong Normal University, Jinan, 250014, P. R. China
| | - Jun Shen
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Qun Chen
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| | - Ming-Yang He
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou, 213164, P. R. China
| |
Collapse
|
40
|
Zheng J, Breit B. Palladium-Catalyzed Direct C–H Allylation of Electron-Deficient Polyfluoroarenes with Alkynes. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00393] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jun Zheng
- Institut für Organische Chemie, Freiburg Institute for Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Freiburg Institute for Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| |
Collapse
|
41
|
Zhang G, Jia F, Gooßen LJ. Regioselective C−H Alkylation via Carboxylate‐Directed Hydroarylation in Water. Chemistry 2018; 24:4537-4541. [DOI: 10.1002/chem.201800757] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Guodong Zhang
- Evonic Chair of Organic ChemistryRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Fan Jia
- Evonic Chair of Organic ChemistryRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Lukas J. Gooßen
- Evonic Chair of Organic ChemistryRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| |
Collapse
|
42
|
Trita AS, Biafora A, Pichette Drapeau M, Weber P, Gooßen LJ. Regiospecific ortho
-C−H Allylation of Benzoic Acids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712520] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- A. Stefania Trita
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| | - Agostino Biafora
- FB Chemie-Organische Chemie; TU Kaiserslautern; Erwin-Schrödinger-Str. Geb. 54 67663 Kaiserslautern Germany
| | - Martin Pichette Drapeau
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| | - Philip Weber
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| | - Lukas J. Gooßen
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| |
Collapse
|
43
|
Trita AS, Biafora A, Pichette Drapeau M, Weber P, Gooßen LJ. Regiospecific ortho
-C−H Allylation of Benzoic Acids. Angew Chem Int Ed Engl 2018; 57:14580-14584. [DOI: 10.1002/anie.201712520] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/25/2018] [Indexed: 11/09/2022]
Affiliation(s)
- A. Stefania Trita
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| | - Agostino Biafora
- FB Chemie-Organische Chemie; TU Kaiserslautern; Erwin-Schrödinger-Str. Geb. 54 67663 Kaiserslautern Germany
| | - Martin Pichette Drapeau
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| | - Philip Weber
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| | - Lukas J. Gooßen
- Fakultät Chemie und Biochemie; Ruhr Universität Bochum; Universitätsstr. 150 44801 Bochum Germany
| |
Collapse
|
44
|
Kumar NYP, Rogge T, Yetra SR, Bechtoldt A, Clot E, Ackermann L. Mild Decarboxylative C−H Alkylation: Computational Insights for Solvent-Robust Ruthenium(II) Domino Manifold. Chemistry 2017; 23:17449-17453. [DOI: 10.1002/chem.201703680] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 01/02/2023]
Affiliation(s)
- N. Y. Phani Kumar
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Torben Rogge
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Santhivardhana Reddy Yetra
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Alexander Bechtoldt
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Eric Clot
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM; Université de Montpellier, cc 1501; Place Eugène Bataillon 34095 Montpellier, Cedex 5 France
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| |
Collapse
|
45
|
Pipaliya BV, Chakraborti AK. Ligand-Assisted Heteroaryl C(sp2
)−H Bond Activation by a Cationic Ruthenium(II) Complex for Alkenylation of Heteroarenes with Alkynes Directed by Biorelevant Heterocycles. ChemCatChem 2017. [DOI: 10.1002/cctc.201701016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Bhavin V. Pipaliya
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S.; Nagar 160 062 India
| | - Asit K. Chakraborti
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S.; Nagar 160 062 India
| |
Collapse
|
46
|
Liu Y, Zhang Y, Wan JP. Multicomponent Synthesis of Diverse o-Arylated Benzamides via o-Aminophenol (OAP) Directed C(sp2)-H Arylation. J Org Chem 2017; 82:8950-8957. [DOI: 10.1021/acs.joc.7b01375] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yunyun Liu
- College of Chemistry and
Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Yi Zhang
- College of Chemistry and
Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Jie-Ping Wan
- College of Chemistry and
Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| |
Collapse
|
47
|
Mandal A, Sahoo H, Dana S, Baidya M. Ruthenium(II)-Catalyzed Hydroarylation of Maleimides Using Carboxylic Acids as a Traceless Directing Group. Org Lett 2017; 19:4138-4141. [DOI: 10.1021/acs.orglett.7b01964] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Harekrishna Sahoo
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| |
Collapse
|
48
|
Mei R, Zhang SK, Ackermann L. Ruthenium(II)-Catalyzed C–H Alkynylation of Weakly Coordinating Benzoic Acids. Org Lett 2017; 19:3171-3174. [DOI: 10.1021/acs.orglett.7b01294] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ruhuai Mei
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
| | - Shou-Kun Zhang
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
| |
Collapse
|
49
|
Font M, Quibell JM, Perry GJP, Larrosa I. The use of carboxylic acids as traceless directing groups for regioselective C–H bond functionalisation. Chem Commun (Camb) 2017; 53:5584-5597. [DOI: 10.1039/c7cc01755c] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This feature article focuses on the use of carboxylic acids as traceless directing groups and the application of this concept to achieve regiochemical control in organic chemistry.
Collapse
Affiliation(s)
- Marc Font
- School of Chemistry
- University of Manchester
- Manchester
- UK
| | | | | | - Igor Larrosa
- School of Chemistry
- University of Manchester
- Manchester
- UK
| |
Collapse
|