1
|
Jansen-van Vuuren RD, Liu S, Miah MAJ, Cerkovnik J, Košmrlj J, Snieckus V. The Versatile and Strategic O-Carbamate Directed Metalation Group in the Synthesis of Aromatic Molecules: An Update. Chem Rev 2024; 124:7731-7828. [PMID: 38864673 PMCID: PMC11212060 DOI: 10.1021/acs.chemrev.3c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024]
Abstract
The aryl O-carbamate (ArOAm) group is among the strongest of the directed metalation groups (DMGs) in directed ortho metalation (DoM) chemistry, especially in the form Ar-OCONEt2. Since the last comprehensive review of metalation chemistry involving ArOAms (published more than 30 years ago), the field has expanded significantly. For example, it now encompasses new substrates, solvent systems, and metalating agents, while conditions have been developed enabling metalation of ArOAm to be conducted in a green and sustainable manner. The ArOAm group has also proven to be effective in the anionic ortho-Fries (AoF) rearrangement, Directed remote metalation (DreM), iterative DoM sequences, and DoM-halogen dance (HalD) synthetic strategies and has been transformed into a diverse range of functionalities and coupled with various groups through a range of cross-coupling (CC) strategies. Of ultimate value, the ArOAm group has demonstrated utility in the synthesis of a diverse range of bioactive and polycyclic aromatic compounds for various applications.
Collapse
Affiliation(s)
- Ross D. Jansen-van Vuuren
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Susana Liu
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
| | - M. A. Jalil Miah
- Department
of Chemistry, Rajshahi University, Rajshahi-6205, Bangladesh
| | - Janez Cerkovnik
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Janez Košmrlj
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Victor Snieckus
- Department
of Chemistry, Queen’s University, Chernoff Hall, 9 Bader Lane, Kingston, Ontario K7K 2N1, Canada
| |
Collapse
|
2
|
Roemer M, Proschogo N, Luck I. Copper(I) Chloride Mediated Amination of Halobenzenes via Azides: Scope, Mechanistic Aspects, and C-C Cleavage Reactions. J Org Chem 2023; 88:1522-1532. [PMID: 36668998 DOI: 10.1021/acs.joc.2c02549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Selective azidation-amination of long-chain alkanoyl halobenzenes with sodium azide, promoted by copper(I) chloride, is reported. The protocol is, apart from CuCl and NaN3, additive free and allows the isolation of versatile amine-azides. Alkyl cleavage occurs as a side reaction through an unusual Schmidt-type azide insertion adjacent to the carbonyl group, forming alkyl nitriles possibly via radical pathways. Mechanistic studies involving 15N labeling experiments and test substrates indicate that the reaction occurs via 1-azido-4-alkanoyl benzenes. The amination is applicable for substrates with electron-withdrawing groups and proceeds under mild conditions. The mechanism of the amine formation involves nitrenes. Intermediates were trapped by carrying out the reaction in the presence of the 2,2,6,6-(tetramethylpiperidin-1-yl)oxyl stable radical and characterized by high-resolution mass spectrometry. The intermediates are consistent with earlier mechanistic proposals.
Collapse
Affiliation(s)
- Max Roemer
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Nicholas Proschogo
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Ian Luck
- Sydney Analytical Core Research Facility, The University of Sydney, Sydney, New South Wales 2006, Australia
| |
Collapse
|
3
|
Guo Y, Wei L, Wen Z, Jiang H, Qi C. Photoredox-catalyzed coupling of aryl sulfonium salts with CO 2 and amines to access O-aryl carbamates. Chem Commun (Camb) 2023; 59:764-767. [PMID: 36541669 DOI: 10.1039/d2cc06033g] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient photoredox-catalyzed three-component coupling reaction of aryl sulfonium salts, carbon dioxide and amines has been developed for the first time. This reaction provides a new strategy for the synthesis of a range of valuable O-aryl carbamates from readily available arenes via a site-selective thianthrenation/carbamoyloxylation two-step process. Mild conditions, broad substrate scope and good functional group tolerance are the features of the transformation. The synthetic utility of the method was demonstrated by the late-stage modification of bioactive molecules and pharmaceuticals.
Collapse
Affiliation(s)
- Yanhui Guo
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
| | - Li Wei
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
| | - Zhonglin Wen
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
| | - Chaorong Qi
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
| |
Collapse
|
4
|
Bavikar SR, Lo HJ, Sai Pavan Kumar CNS, Chein RJ. Total synthesis of (-)-panduratin D. Chem Commun (Camb) 2022; 58:8564-8567. [PMID: 35815846 DOI: 10.1039/d2cc02980d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an enantioselective total synthesis of (-)-panduratin D, a novel secondary metabolite against human pancreatic PANC-1 cancer cell, from commercially available 3-methoxyphenol is reported. The synthesis was completed in nine steps and the key features include Sonogashira coupling, anionic Snieckus-Fries rearrangement, directed ortho metalation, tandem Si → C Alkyl rearrangement/Claisen-Schmidt condensation, and chiral boron complex-promoted asymmetric Diels-Alder cycloaddition. These endeavors could facilitate the biological studies of (-)-panduratin D and its analogs.
Collapse
Affiliation(s)
- Suhas Ravindra Bavikar
- Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan. .,Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Nankang, Taipei, 11529, Taiwan.,Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Hong-Jay Lo
- Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan.
| | - Chebolu Naga Sesha Sai Pavan Kumar
- Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan. .,Division of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science, Technology, and Research, Vadlamudi, Guntur, Andhra Pradesh, India
| | - Rong-Jie Chein
- Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan.
| |
Collapse
|
5
|
Guo L, Ye M, Vaccaro L, Li M, Gu Y. Two‐Step Access to
β
‐Substituted
o
‐Hydroxyphenyl Ethyl Ketones from 4‐Chromanone and its Application in Preparation of a Silica‐Supported Cobalt(II) Salen Complex. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Luxia Guo
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education Huazhong University of Science and Technology (HUST) 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Meng Ye
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education Huazhong University of Science and Technology (HUST) 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Luigi Vaccaro
- Laboratory of Green S.O.C. Dipartimento di Chimica, biologia e Biotecnologie Università degli Studi di Perugia Via Elce di Sotto 8 06123 Perugia Italy
| | - Minghao Li
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education Huazhong University of Science and Technology (HUST) 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Yanlong Gu
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education Huazhong University of Science and Technology (HUST) 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Lanzhou 730000 People's Republic of China
| |
Collapse
|
6
|
Feberero C, Sedano C, Suárez-Pantiga S, López CS, Sanz R. Experimental and Computational Study of the 1,5-O → N Carbamoyl Snieckus-Fries-Type Rearrangement. J Org Chem 2020; 85:12561-12578. [PMID: 32897069 DOI: 10.1021/acs.joc.0c01732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The reactions of o-lithiated O-aryl N,N-diethylcarbamates with different C-N multiple bond electrophiles have been thoroughly studied. A 1,5-O → N carbamoyl shift, a new variation of the anionic Fries-type rearrangement, takes place when nitriles, imines, or alkylcarbodiimides are employed. In these cases, the carbamoyl group plays a dual role as a directing group, building up a variety of functional groups through the 1,5-O → N carbamoyl migration. On the other hand, the use of iso(thio)cyanates and arylcarbodiimides led to non-rearranged o-functionalized O-arylcarbamates. This reactivity was further computationally explored, and the governing factor could be traced back to the relative basicity of the alternative products (migrated vs nonmigrated substrates). This exploration also provided interesting insights about the degree of complexation of the lithium cations onto these substrates. A new access to useful 2-hydroxybenzophenone derivatives has also been developed.
Collapse
Affiliation(s)
- Claudia Feberero
- Área de Quı́mica Orgánica, Departamento de Quı́mica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Carlos Sedano
- Área de Quı́mica Orgánica, Departamento de Quı́mica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Samuel Suárez-Pantiga
- Área de Quı́mica Orgánica, Departamento de Quı́mica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Carlos Silva López
- Departamento de Quı́mica Orgánica and CITACA (Agri-Food Research and Transfer Cluster), Universidade de Vigo, 36310 Vigo, Spain
| | - Roberto Sanz
- Área de Quı́mica Orgánica, Departamento de Quı́mica, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| |
Collapse
|
7
|
Palladium-catalyzed regioselective cascade reaction of carbon dioxide, amines and allenes for the synthesis of functionalized carbamates. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9679-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
8
|
Chien CC, Kao SC, Chen CJ, Wu YK. Photo-Fries rearrangement in flow under aqueous micellar conditions. Chem Commun (Camb) 2020; 56:15470-15472. [DOI: 10.1039/d0cc07331h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A combination of an aqueous micellar medium and a flow reactor provides a green approach for refining the classic photo-Fries rearrangement.
Collapse
Affiliation(s)
- Chia-Chen Chien
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Shih-Chieh Kao
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Chun-Jen Chen
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Yen-Ku Wu
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| |
Collapse
|
9
|
Bach T, Truchan N, Jandl C, Pöthig A, Breitenlechner S. Access to Biphenyls by Palladium-Catalyzed Oxidative Coupling of Phenyl Carbamates and Phenols. SYNTHESIS-STUTTGART 2019. [DOI: 10.1055/s-0037-1611482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The oxidative cross-coupling of phenols (3 equiv) to various substituted phenyl N,N-diethylcarbamates was explored with a variety of substrates. Pd(OAc)2 was employed as the catalyst (20 mol%) and K2S2O8 as the stoichiometric oxidant in trifluoroacetic acid as the solvent (50 °C, 2 h). Carbamates without or with a substituent on the phenyl ring (Me, Ph, Cl, OMe) underwent the reaction unless the phenyl substituent was too strongly electron withdrawing (CN). Cross-coupling occurred exclusively in the ortho position relative to the carbamate group. The regioselectivity at the phenol (ortho or para to hydroxy) was mainly determined by steric factors. Yields up to 60–70% were achieved for specific carbamate/phenol combinations.
Collapse
Affiliation(s)
- Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München
| | | | | | | | | |
Collapse
|
10
|
Luo X, Song X, Xiong W, Li J, Li M, Zhu Z, Wei S, Chan ASC, Zou Y. Copper-Catalyzed C–H Carbamoyloxylation of Aryl Carboxamides with CO2 and Amines at Ambient Conditions. Org Lett 2019; 21:2013-2018. [DOI: 10.1021/acs.orglett.9b00122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiang Luo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Xianheng Song
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Wenfang Xiong
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, People’s Republic of China
| | - Jianheng Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Mingkang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Zefeng Zhu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Shuxian Wei
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Albert S. C. Chan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| | - Yong Zou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People’s Republic of China
| |
Collapse
|
11
|
Kumar SN, Bavikar SR, Pavan Kumar CNSS, Yu IF, Chein RJ. From Carbamate to Chalcone: Consecutive Anionic Fries Rearrangement, Anionic Si → C Alkyl Rearrangement, and Claisen-Schmidt Condensation. Org Lett 2018; 20:5362-5366. [PMID: 30148638 DOI: 10.1021/acs.orglett.8b02269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A highly efficient one-pot procedure was developed for the synthesis of various 2'-hydroxychalcones from phenyl diethylcarbamate, featuring consecutive Snieckus-Fries rearrangement, anionic Si → C alkyl rearrangement, and Claisen-Schmidt condensation in a single operation. The applicability of this protocol was demonstrated by the highly efficient synthesis of the anti-inflammatory natural product lonchocarpin. The mechanism insight is also provided.
Collapse
Affiliation(s)
| | - Suhas Ravindra Bavikar
- Institute of Chemistry , Academia Sinica , Nankang, Taipei 11529 , Taiwan.,Molecular Science and Technology Program, Taiwan International Graduate Program , Academia Sinica and National Tsing Hua University , Hsinchu 30013 , Taiwan
| | - Chebolu Naga Sesha Sai Pavan Kumar
- Institute of Chemistry , Academia Sinica , Nankang, Taipei 11529 , Taiwan.,Division of Chemistry, Department of Sciences and Humanities , Vignan's Foundation for Science, Technology, and Research , Vadlamudi, Guntur , Andhra Pradesh , India
| | - Isaac Furay Yu
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Rong-Jie Chein
- Institute of Chemistry , Academia Sinica , Nankang, Taipei 11529 , Taiwan
| |
Collapse
|
12
|
Direct use of CO2 for O-arylcarbamate synthesis via mild Cu(II)-catalyzed aerobic C-H functionalization in pincer-like macrocyclic systems. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
13
|
Xiong W, Qi C, Peng Y, Guo T, Zhang M, Jiang H. Base-Promoted Coupling of Carbon Dioxide, Amines, and Diaryliodonium Salts: A Phosgene- and Metal-Free Route toO-Aryl Carbamates. Chemistry 2015; 21:14314-8. [DOI: 10.1002/chem.201502689] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Indexed: 12/11/2022]
|