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De Risi C, Brandolese A, Di Carmine G, Ragno D, Massi A, Bortolini O. Oxidative N-Heterocyclic Carbene Catalysis. Chemistry 2023; 29:e202202467. [PMID: 36205918 PMCID: PMC10099058 DOI: 10.1002/chem.202202467] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Indexed: 11/05/2022]
Abstract
N-Heterocyclic carbene (NHC) catalysis is a by now consolidated organocatalytic platform for a number of synthetic (asymmetric) transformations via diverse reaction modes/intermediates. In addition to the typical umpolung processes involving acyl anion/homoenolate equivalent species, implementation of protocols under oxidative conditions greatly expands the possibilities of this methodology. Oxidative NHC-catalysis allows for oxidative and oxygenative transformations through specific manipulations of Breslow-type species depending upon the oxidant used (external oxidant or O2 /air), the derived NHC-bound intermediates paving the way to non-umpolung processes through activation of carbon atoms and heteroatoms. This review is intended to update the state of the art in oxidative NHC-catalyzed reactions that appeared in the literature from 2014 to present, with a strong focus to crucial intermediates and their mechanistic implications.
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Affiliation(s)
- Carmela De Risi
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università di Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Arianna Brandolese
- Dipartimento di Scienze dell'Ambiente e della Prevenzione, Università di Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Graziano Di Carmine
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università di Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Daniele Ragno
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università di Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Alessandro Massi
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università di Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Olga Bortolini
- Dipartimento di Scienze dell'Ambiente e della Prevenzione, Università di Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
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Wang Z, Yang T, Liu D, Chen R, Wang N, Liu H, Li J, Wang K, Liu H. Catalyst-Controlled Selectivity Switch in Three-Component Reaction: An NHC-Catalyzed Strategy for the Synthesis of δ-Lactone-Fused Spirobenzofuran-3-ones. Molecules 2022; 27:molecules27185952. [PMID: 36144686 PMCID: PMC9503435 DOI: 10.3390/molecules27185952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/09/2022] [Accepted: 09/09/2022] [Indexed: 11/28/2022] Open
Abstract
An efficient, three-component reaction of aldehydes and benzofuran-3-ones was developed. This process provides a new approach for the preparation of synthetically and biologically important spirobenzofuran-3-one derivatives with moderate-to-good yields under mild conditions. A switch of intramolecular to intermolecular domino Michael–aldol–lactonization leading to differential product formation was achieved by different NHCs catalysis.
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Affiliation(s)
- Zhanyong Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Ting Yang
- Nursing College, Xinxiang University, Xinxiang 453003, China
| | - Dongfang Liu
- Xinxiang Runyu Material Co., Ltd., Xinxiang 453003, China
| | - Rongxiang Chen
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Nan Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Hong Liu
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Jiarong Li
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
| | - Kaikai Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, China
- Correspondence: (K.W.); (H.L.)
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
- Correspondence: (K.W.); (H.L.)
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Ghosh A, Shee S, Biju AT. A Benzannulation Strategy for Rapid Access to Quinazoline-2,4-diones via Oxidative N-Heterocyclic Carbene Catalysis. Org Lett 2022; 24:2772-2777. [PMID: 35377662 DOI: 10.1021/acs.orglett.2c00954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
N-Heterocyclic carbene-catalyzed formal [4+2] benzannulation of enals with suitably substituted pyrimidine-2,4-diones allowing the mild and facile synthesis of functionalized quinazoline-2,4-diones is presented. This oxidative transformation proceeds via the simultaneous generation of dienolates and α,β-unsaturated acylazoliums and follows a vinylogous Michael/aldol/β-lactonization/decarboxylation/oxidation sequence to afford quinazoline-2,4-diones, including axially chiral ones with suitable substitutions, in an operationally simple procedure. In addition, substituted coumarins as dienolate precursors afforded benzochromen-6-one derivatives.
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Affiliation(s)
- Arghya Ghosh
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Sayan Shee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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Wang Z, Shen F, Yang T, Zhang J, Chen R, Wang K, Liu H. Carbene‐Catalyzed Three‐Component Cascade Reaction of Benzofuran‐2‐ones and Enals: Construction of Spirobenzofuranone‐δ‐lactones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Zhan‐Yong Wang
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Fumin Shen
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Ting Yang
- Nursing College Xinxiang University Xinxiang 453003 P. R. China
| | - Jun‐Kai Zhang
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Rongxiang Chen
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
| | - Kai‐Kai Wang
- School of Pharmacy Xinxiang University Xinxiang 453003 P. R. China
- Key Laboratory of Nano-carbon Modified Film Technology Engineering Xinxiang 453003 P. R. China
| | - Hongxin Liu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 P. R. China
- Institute of New Materials & Industrial Technology Wenzhou University Wenzhou 325035 P. R. China
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Ghosh A, Barik S, Barik S, Shee S, Biju AT. Oxidative N-heterocyclic carbene (NHC) catalysis for the rapid access to functionalized pyrrolo-oxazinones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ghosh A, Shee S, Barik S, Gonnade RG, Biju AT. Enantioselective Synthesis of 5,6-Dihydroindolizines by N-Heterocyclic Carbene (NHC)-Catalyzed Core-Structure-Inspired Strategy of Azolium-Enolate Cascade. Org Lett 2021; 23:5223-5228. [PMID: 34160226 DOI: 10.1021/acs.orglett.1c01761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The core-structure motivated design has allowed the enantioselective synthesis of 5,6-dihydroindolizines via N-heterocyclic carbene (NHC) catalysis. The NHC-catalyzed reaction of α,β-unsaturated aldehydes with the suitably substituted pyrrole derivatives proceed via the initial generation of α,β-unsaturated acylazoliums from enals, and enolates from pyrroles and the reaction culminated in an efficient cascade process involving the Michael-aldol-lactonization-decarboxylation sequence to afford the products in reasonable yields and high selectivities. The method is further extended to the construction of spirocyclic 5,6-dihydroindolizines.
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Affiliation(s)
- Arghya Ghosh
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Sayan Shee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Shilpa Barik
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Rajesh G Gonnade
- Centre for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
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Wang Z, Liu Q, Wang K, Liu M, Han Y, Sun A, Ma X. NHC‐Catalyzed Oxidative Annulation of α,β‐unsaturated Aldehydes with Benzyl Ketones: Direct Access to 4,5,6‐Trisubstituted Dihydropyranones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhan‐Yong Wang
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Qingling Liu
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Kai‐Kai Wang
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Menghan Liu
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Yafei Han
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Aili Sun
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Xueji Ma
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
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Wang ZY, Yang T, Chen R, Ma X, Liu H, Wang KK. 1,3-Dipolar cycloaddition of isatin N, N'-cyclic azomethine imines with α,β-unsaturated aldehydes catalyzed by DBU in water. RSC Adv 2020; 10:24288-24292. [PMID: 35516173 PMCID: PMC9055116 DOI: 10.1039/d0ra03806g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/18/2020] [Indexed: 11/22/2022] Open
Abstract
A simple and green procedure was established by [3 + 3] cycloaddition reaction of isatin derived cyclic imine 1,3-dipoles with α,β-unsaturated aldehydes, giving the desired spiro heterocyclic oxindoles with aza-quaternary centers in good yields and diastereoselectivities. It should be noted that water can be employed as a suitable solvent for the improvement of diastereoselectivity. A simple and green procedure was established by [3 + 3] cycloaddition reaction of isatin derived cyclic imine 1,3-dipoles with α,β-unsaturated aldehydes, giving spirooxindoles with aza-quaternary center in good yields and diastereoselectivities.![]()
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Affiliation(s)
- Zhan-Yong Wang
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Ting Yang
- Medical College, Xinxiang University Xinxiang 453003 P. R. China
| | - Rongxiang Chen
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Xueji Ma
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Huan Liu
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Kai-Kai Wang
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
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