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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 DOI: 10.1021/acs.chemrev.3c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [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.
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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
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Liang M, He M, Zhong Z, Wan B, Du Q, Mai S. Catalytic and Base-free Suzuki-type α-Arylation of Cyclic 1,3-Dicarbonyls via a Cyclic Iodonium Ylide Strategy. Angew Chem Int Ed Engl 2024; 63:e202400741. [PMID: 38385585 DOI: 10.1002/anie.202400741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/12/2024] [Accepted: 02/21/2024] [Indexed: 02/23/2024]
Abstract
To date, it remains challenging to achieve a general and catalytic α-arylation of cyclic 1,3-dicarbonyls, particularly ubiquitous heteroaromatic ones. In most cases, the preparation of their medically significant arylated derivatives requires multistep synthetic sequences. Herein, we introduce a new, convenient strategy involving the conversion of cyclic 1,3-dicarbonyls to cyclic iodonium ylides (CIYs), followed by rhodium-catalyzed α-arylation with arylboronic reagents via carbene coupling. This approach is mild, operationally simple, base-free, biocompatible, and exhibits broad substrate scope (>100 examples), especially with respect to various heteroaromatic 1,3-dicarbonyls and ortho-substituted or base-sensitive arylboronic acids. Importantly, owing to the excellent compatibility with various arylboronic acids or boronate esters (ArBpin, ArBneop, or ArBF3K), this method allows the late-stage installation of heterocyclic 1,3-dicarbonyl motifs in highly complex settings. The utility of this transformation is further demonstrated through significantly simplifying the synthesis of several bioactive molecules and natural products.
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Affiliation(s)
- Mingxuan Liang
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Mengling He
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Zhiqing Zhong
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Bei Wan
- Centre of General Practice The Seventh Affiliated Hospital, Southern Medical University, Foshan, 528000, China
| | - Qingfeng Du
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
- Centre of General Practice The Seventh Affiliated Hospital, Southern Medical University, Foshan, 528000, China
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Shaoyu Mai
- Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
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Day CS, Ton SJ, Kaussler C, Vrønning Hoffmann D, Skrydstrup T. Low Pressure Carbonylation of Benzyl Carbonates and Carbamates for Applications in 13 C Isotope Labeling and Catalytic CO 2 Reduction. Angew Chem Int Ed Engl 2023; 62:e202308238. [PMID: 37439487 DOI: 10.1002/anie.202308238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/14/2023]
Abstract
Herein, we report a methodology to access isotopically labeled esters and amides from carbonates and carbamates employing an oxygen deletion strategy. This methodology utilizes a decarboxylative carbonylation approach for isotope labeling with near stoichiometric, ex situ generated 12 C, or 13 C carbon monoxide. This reaction is characterized by its broad scope, functional group tolerance, and high yields, which is showcased with the synthesis of structurally complex molecules. A complementary method that operates by the catalytic in situ generation of CO via the reduction of CO2 liberated during decarboxylation has also been developed as a proof-of-concept approach that CO2 -derived compounds can be converted to CO-containing frameworks. Mechanistic studies provide insight into the catalytic steps which highlight the impact of ligand choice to overcome challenges associated with low-pressure carbonylation methodologies, along with rational for the development of future methodologies.
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Affiliation(s)
- Craig S Day
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Stephanie J Ton
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Clemens Kaussler
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Daniel Vrønning Hoffmann
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
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4
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Toupalas G, Ribadeau-Dumas L, Morandi B. Ni-catalyzed mild hydrogenolysis and oxidations of C-O bonds via carbonate redox tags. Nat Commun 2023; 14:2604. [PMID: 37147279 PMCID: PMC10163265 DOI: 10.1038/s41467-023-38305-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/20/2023] [Indexed: 05/07/2023] Open
Abstract
Oxygenated molecules are omnipresent in natural as well as artificial settings making the redox transformation of the present C-O bonds a central tool for their processing. However, the required (super)stoichiometric redox agents which traditionally include highly reactive and hazardous reagents pose multiple practical challenges including process safety hazards or special waste management requirements. Here, we report a mild Ni-catalyzed fragmentation strategy based on carbonate redox tags for redox transformations of oxygenated hydrocarbons in the absence of any external redox equivalents or other additives. The purely catalytic process enables the hydrogenolysis of strong C(sp2)-O bonds including that of enol carbonates as well as the catalytic oxidation of C-O bonds under mild conditions down to room temperature. Additionally, we investigated the underlying mechanism and showcased the benefits of carbonate redox tags in multiple applications. More broadly, the work herein demonstrates the potential of redox tags for organic synthesis.
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Affiliation(s)
- Georgios Toupalas
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Loélie Ribadeau-Dumas
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Bill Morandi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
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Toupalas G, Thomann G, Schlemper L, Rivero-Crespo MA, Schmitt HL, Morandi B. Pd-Catalyzed Direct Deoxygenative Arylation of Non-π-Extended Benzyl Alcohols with Boronic Acids via Transient Formation of Non-Innocent Isoureas. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Georgios Toupalas
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Gianin Thomann
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Lukas Schlemper
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Miguel A. Rivero-Crespo
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Hendrik L. Schmitt
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Bill Morandi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
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Pipaón Fernández N, Gaube G, Woelk KJ, Burns M, Hruszkewycz DP, Leitch DC. Palladium-Catalyzed Direct C–H Alkenylation with Enol Pivalates Proceeds via Reversible C–O Oxidative Addition to Pd(0). ACS Catal 2022. [DOI: 10.1021/acscatal.2c01305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nahiane Pipaón Fernández
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Gregory Gaube
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Kyla J. Woelk
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Mathias Burns
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
| | - Damian P. Hruszkewycz
- Chemical Development, GlaxoSmithKline, 1250 S Collegeville Rd, Collegeville, Pennsylvania 19426, United States
| | - David C. Leitch
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
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