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Zhang R, Ma R, Chen R, Wang L, Ma Y. Regioselective C 3Alkylation of Indoles for the Synthesis of Bis(indolyl)methanes and 3-Styryl Indoles. J Org Chem 2024; 89:1846-1857. [PMID: 38214898 DOI: 10.1021/acs.joc.3c02551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Herein, we describe an efficient transition-metal-free regioselective C3alkylation of indoles for the synthesis of bis(indolyl)methanes and 3-styryl indoles. Nitrobenzene is employed as the oxidant to oxidize the alcohols in the presence of a strong base and the reaction avoids the use of transition metals such as Ru and Mn. The protocol provides a favorable route to access biologically active compounds such as arundine, vibrindole A, and turbomycin B.
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Affiliation(s)
- Ruiqin Zhang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P. R. China
| | - Renchao Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
| | - Rener Chen
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
| | - Lei Wang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
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Gan S, Zeng Y, Lu C, Ma C, Wang F, Yang G, Zhang Y, Nie J. Rationally designed conjugated microporous polymers for efficient photocatalytic chemical transformations of isocyanides. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01393b] [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
Click-based conjugated microporous polymers have been rationally designed and prepared for efficient N–H insertion like reaction of aryl isocyanides and photosynthesis of thiocarbamates.
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Affiliation(s)
- Shaolin Gan
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Yan Zeng
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Cuifen Lu
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Chao Ma
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Feiyi Wang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Guichun Yang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Yuexing Zhang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Junqi Nie
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
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Taha I, Keshk EM, Khalil AGM, Fekri A. Benzocaine as a precursor of promising derivatives: synthesis, reactions, and biological activity. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01808-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Morgante P, Captain B, Chouinard CD, Peverati R, Takenaka N. Synthesis of electrophilic N-heterocyclic carbenes based on azahelicene. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Luo L, Li H, Liu J, Zhou Y, Dong L, Xiao YC, Chen FE. Transition-metal and oxidant-free approach for the synthesis of diverse N-heterocycles by TMSCl activation of isocyanides. RSC Adv 2020; 10:29257-29262. [PMID: 35521093 PMCID: PMC9055958 DOI: 10.1039/d0ra04636a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/07/2020] [Indexed: 01/27/2023] Open
Abstract
A highly efficient TMSCl-mediated addition of N-nucleophiles to isocyanides has been achieved. This transition-metal and oxidant-free strategy has been applied to the construction of various N-heterocyles such as quinazolinone, benzimidazole and benzothiazole derivatives by the use of distinct amino-based binucleophiles. The notable feature of this protocol includes its mild reaction condition, broad functional group tolerance and excellent yield. A highly efficient TMSCl-mediated addition of N-nucleophiles to isocyanides has been achieved.![]()
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Affiliation(s)
- Liangliang Luo
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
| | - Hongyan Li
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
| | - Jinxin Liu
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
| | - Yuan Zhou
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
| | - Lin Dong
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
| | - You-Cai Xiao
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
| | - Fen-Er Chen
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu
- China
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6
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Synthesis of indole based amides using immobilized lipase on graphene oxide (GO@lipase) as a retrievable heterogeneous nano biocatalyst. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.114153] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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7
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Cheng G, Xu D, Lu Z, Liu K. Chiral Self-Assembly of Nanoparticles Induced by Polymers Synthesized via Reversible Addition-Fragmentation Chain Transfer Polymerization. ACS NANO 2019; 13:1479-1489. [PMID: 30702861 DOI: 10.1021/acsnano.8b07151] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chiral inorganic nanomaterials are of great interest because of their excellent optical properties. Most of the attention has been focused on the utilization of biomolecules or their derivatives as linkers or templates to control the chiral structure of assembled inorganic nanoparticles. Chiral polymers are promising synthetic materials that can be used to replace their biological counterparts. Here, by using poly(methacrylate hydroxyethyl-3-indole propionate) (PIPEMA) and poly(2-hydroxyethyl methacrylate) (PHEMA) synthesized via syndioselective reversible addition-fragmentation chain transfer polymerization, we successfully realized chiral self-assembly of gold nanorods with strong circular dichroism response in the vis-NIR region. Moreover, the intensity of the chiral signal of the assemblies can be regulated by the molecular weight of the polymers. Notably, although the monomers are achiral and no chiral reagents are involved in their synthesis, the main chains of PIPEMA and PHEMA exhibit a preferred-handed helical conformation, which is the origin of chirality of the nanorod assemblies. The preferred-handed helical conformation of polymers is attributed to their syndiotacticity and stabilized by the steric hindrance of the side groups. The addition of chiral carbon atoms at the side groups does not change the preferred-handedness of the polymer main chain, resulting in the assembled nanorod structures with the same chirality. This strategy provides inspiration for the rational design and synthesis of optically active functional synthetic polymers for the preparation of promising chiral nanomaterials.
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Affiliation(s)
- Guiqing Cheng
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , 130012 , People's Republic of China
| | - Duo Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry , Jilin University , Changchun , 130023 , People's Republic of China
| | - Zhongyuan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , 130012 , People's Republic of China
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry , Jilin University , Changchun , 130023 , People's Republic of China
| | - Kun Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , 130012 , People's Republic of China
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Ta L, Sundén H. Oxidative organocatalytic chemoselective N-acylation of heterocycles with aromatic and conjugated aldehydes. Chem Commun (Camb) 2018; 54:531-534. [DOI: 10.1039/c7cc08672e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxidative organocatalytic acylation of indoles with aldehydes serves as an alternative to sensitive acyl chlorides and coupling agents.
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Affiliation(s)
- Linda Ta
- Chemistry and Chemical Engineering, Chalmers University of Technology
- Kemivägen 10
- Sweden
| | - Henrik Sundén
- Chemistry and Chemical Engineering, Chalmers University of Technology
- Kemivägen 10
- Sweden
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