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Li Q, Zhu ZQ, Zhang WY, Le ZG, Xie ZB. Visible-light-induced decarboxylative cascade cyclization of acryloylbenzamides with N-hydroxyphthalimide esters via EDA complexes. Org Biomol Chem 2024; 22:965-969. [PMID: 38205855 DOI: 10.1039/d3ob01970e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A visible-light-induced decarboxylative cascade reaction of acryloylbenzamides with alkyl N-hydroxyphthalimide (NHP) esters for the synthesis of various 4-alkyl isoquinolinediones mediated by triphenylphosphine (PPh3) and sodium iodide (NaI) was developed. This operationally simple protocol proceeded via the photoactivation of electron donor-acceptor (EDA) complexes between N-hydroxyphthalimide esters and NaI/PPh3, resulting in multiple carbon-carbon bond formations without the use of precious metal complexes or synthetically elaborate organic dyes, which provided an alternative practical approach to synthesize diverse isoquinoline-1,3(2H,4H)-dione derivatives.
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Affiliation(s)
- Qing Li
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Wen-Yi Zhang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
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2
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Kiprova N, Desnoyers M, Narobe R, Klufts-Edel A, Chaud J, König B, Compain P, Kern N. Towards a General Access to 1-Azaspirocyclic Systems via Photoinduced, Reductive Decarboxylative Radical Cyclizations. Chemistry 2023:e202303841. [PMID: 38084823 DOI: 10.1002/chem.202303841] [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: 11/18/2023] [Indexed: 01/13/2024]
Abstract
A convenient and versatile approach to important 1-azaspirocyclic systems relevant to medicinal chemistry and natural products is reported herein. The main strategy relies on a reductive decarboxylative cyclization of redox-active esters which can be rapidly assembled from abundant cyclic azaacids and tailored acceptor sidechains, with a focus on alkyne acceptors enabling the generation of useful exo-alkene moieties. Diastereoconvergent variants were studied and could be achieved either through remote stereocontrol or conformational restriction in bicyclic carbamate substrates. Two sets of metal-free photocatalytic conditions employing inexpensive eosin Y were disclosed and studied experimentally to highlight key mechanistic divergences.
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Affiliation(s)
- Natalia Kiprova
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), UMR 7042, Université de Strasbourg/Université de Haute-Alsace/CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Marine Desnoyers
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), UMR 7042, Université de Strasbourg/Université de Haute-Alsace/CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Rok Narobe
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, Germany
| | - Arthur Klufts-Edel
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), UMR 7042, Université de Strasbourg/Université de Haute-Alsace/CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Juliane Chaud
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), UMR 7042, Université de Strasbourg/Université de Haute-Alsace/CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, Germany
| | - Philippe Compain
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), UMR 7042, Université de Strasbourg/Université de Haute-Alsace/CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg, France
| | - Nicolas Kern
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), UMR 7042, Université de Strasbourg/Université de Haute-Alsace/CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg, France
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3
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Liu Y, Sui JL, Yu WQ, Xiong BQ, Tang KW, Zhong LJ. Visible-Light-Promoted Decarboxylative Alkylation/Cyclization of Vinylcycloalkanes. J Org Chem 2023. [PMID: 37339016 DOI: 10.1021/acs.joc.3c00486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
An efficient strategy for visible-light-promoted decarboxylative alkylation of vinylcyclopropanes with alkyl N-(acyloxy)phthalimide esters through the dual C-C bond and single N-O bond cleavage, employing triphenylphosphine and lithium iodide as the photoredox system to synthesize 2-alkylated 3,4-dihydronaphthalenes, has been established. This alkylation/cyclization involves a radical process and undergoes a sequence of N-(acyloxy)phthalimide ester single-electron reduction, N-O bond cleavage, decarboxylative, alkyl radical addition, C-C bond cleavage, and intramolecular cyclization. Moreover, using the photocatalyst Na2-Eosin Y instead of triphenylphosphine and lithium iodide, the vinyl transfer products are acquired when vinylcyclobutanes or vinylcyclopentanes are utilized as alkyl radical receptors.
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Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jia-Li Sui
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Wen-Qin Yu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Long-Jin Zhong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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4
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Bi WZ, Zhang WJ, Li CY, Shao LH, Liu QP, Feng SX, Geng Y, Chen XL, Qu LB. Photoexcited sulfenylation of C(sp 3)-H bonds in amides using thiosulfonates. Org Biomol Chem 2022; 20:3902-3906. [PMID: 35502883 DOI: 10.1039/d2ob00557c] [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
A photoexcited sulfenylation of C(sp3)-H bonds in amides is developed for the synthesis of sulfenyl amides using thiosulfonates as a sulfur source. In the presence of easily available and inexpensive Na2-eosin Y, TBHP and K2CO3, various sulfenyl amides can be obtained under the irradiation of blue light at room temperature.
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Affiliation(s)
- Wen-Zhu Bi
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Wen-Jie Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Chen-Yu Li
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Lu-Hao Shao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Qing-Pu Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Su-Xiang Feng
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, China. .,Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases co-constructed by Henan province & Education Ministry of P. R. China, Zhengzhou, 450046, China
| | - Yang Geng
- Department of Pharmacy, Zhengzhou Railway Vocational and Technical College, Zhengzhou, 450046, China.
| | - Xiao-Lan Chen
- College of Chemistry, Zhengzhou University, Zhengzhou, 450052, China
| | - Ling-Bo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450052, China
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5
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Zhu W, Xi H, Jiao W, Huang L, Wang L, Wu J. Difunctionalization of gem-Difluoroalkenes via Photoredox Catalysis: Synthesis of Diverse α,α-Difluoromethyl-β-alkoxysulfones. Org Lett 2022; 24:720-725. [PMID: 34981944 DOI: 10.1021/acs.orglett.1c04165] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Visible-light-promoted alkoxysulfonylation of gem-difluoroalkenes using sulfonyl chlorides and alcohols has been developed. The reaction exhibits a relatively broad substrate scope with excellent functional group compatibility. This synthesis method includes an atom transfer radical addition-like process. The products can be used as platform molecules for further modification.
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Affiliation(s)
- Wenjuan Zhu
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hui Xi
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, P. R. China
| | - Wenyang Jiao
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lihua Huang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lianjie Wang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Junliang Wu
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, Zhengzhou 450001, P. R. China
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