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Sun M, Zeng CY, Bu LL, Xu M, Chen K, Liu JL, Zhang T, Dai JY, Hong JX, Ding MW. Novel Metal-Free Synthesis of 3-Substituted Isocoumarins and Evaluation of Their Fluorescence Properties for Potential Applications. Molecules 2024; 29:2449. [PMID: 38893325 PMCID: PMC11173990 DOI: 10.3390/molecules29112449] [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: 04/05/2024] [Revised: 05/01/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024] Open
Abstract
A novel metal-free synthesis of 3-substituted isocoumarins through a sequential O-acylation/Wittig reaction has been established. The readily accessible (2-carboxybenzyl)-triphenylphosphonium bromide and diverse chlorides produced various 1H-isochromen-1-one in the presence of triethylamine, employing sequential O-acylation and an intramolecular Wittig reaction of acid anhydride. Reactions using these facile conditions have exhibited high functional group tolerance and excellent yields (up to 90%). Moreover, the fluorescence properties of isocoumarin derivatives were evaluated at the theoretical and experimental levels to determine their potential application in fluorescent materials. These derivatives have good photoluminescence in THF with a large Stokes shift and an absolute fluorescence quantum yield of up to 14%.
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Affiliation(s)
- Mei Sun
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Central China Normal University, Wuhan 430079, China
| | - Chong-Yang Zeng
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Lu-Lu Bu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Mai Xu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Kai Chen
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Jia-Lin Liu
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Tao Zhang
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Jia-You Dai
- School of Chemistry and Materials Engineering, Huainan Normal University, Huainan 232038, China; (M.S.); (C.-Y.Z.); (L.-L.B.); (M.X.); (K.C.); (J.-L.L.); (T.Z.); (J.-Y.D.)
| | - Jia-Xin Hong
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ming-Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Central China Normal University, Wuhan 430079, China
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Li H, Lu Y, Xu N, Jin X, Chen T, Yu J, Liu J. Rhodium(III)-Catalyzed C-H Cascade Annulation of Arylhydrazines with 2-Diazo-1,3-indandiones for the Synthesis of Tetracyclic Indeno[1,2- b]indoles. J Org Chem 2024. [PMID: 38176055 DOI: 10.1021/acs.joc.3c02243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
An efficient approach for the preparation of tetracyclic indeno[1,2-b]indoles via Rh(III)-catalyzed C-H cascade annulation between arylhydrazines and diazo indan-1,3-diones has been established. In addition, a series of indeno[1,2-b]indoles were obtained in up to 96% yield with a wide range of substrates and high functional group tolerance. Finally, the diverse transformations of the desired products demonstrate the synthetic utility and utilization of this protocol.
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Affiliation(s)
- He Li
- Innovation Team of Optical Functional Molecular Devices, Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Ye Lu
- Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Ning Xu
- Innovation Team of Optical Functional Molecular Devices, Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Xinxin Jin
- Innovation Team of Optical Functional Molecular Devices, Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Tao Chen
- Innovation Team of Optical Functional Molecular Devices, Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Jiaqi Yu
- Innovation Team of Optical Functional Molecular Devices, Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Jinglin Liu
- Innovation Team of Optical Functional Molecular Devices, Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
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