<scp>One‐Pot</scp> Synthesis of Spiro[fluorene‐9,9'‐xanthene] Derivatives

Yuan, Haoxuan; Wei, Ying; Xie, Linghai; Huang, Wei

doi:10.1002/cjoc.202000518

Cited by 6 publications

(2 citation statements)

References 80 publications

(93 reference statements)

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“…As next‐generation spirofluorenes, SFX derivatives have received increasing attention due to their competitive one‐pot route, cruciform‐shaped structure and photoelectric stability. [ 22‐25 ] Copolymer based on porphyrin and SFX was designed as memristive functional layer. Compared with the memristor devices achieved by doping strategy, the active layer of copolymer could be obtained by simple spin‐coating process without considering the dispersion of ions or electrolytes.…”

Section: Background and Originality Contentmentioning

confidence: 99%

Novel Porphyrin‐Containing Polymer Based Memristor for Synaptic Plasticity Simulation

et al. 2022

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The porphyrin-based copolymer PZnTPP-SFX is designed and synthesized by alternating porphyrin and spiro[fluorene-9,9'-xanthene] via Suzuki copolymerization. A simple memristor structure of ITO/ZnTPP-SFX/AlO x /Al was fabricated by spin-coating process. The conventional synaptic plasticity is emulated using the single memristor including nonlinear transmission characteristics, spike-timing dependent plasticity and spike-rate dependent plasticity. New spike-voltage dependent plasticity is also found in the memristor which can selectively perform potentiation and depression behaviors at a unipolar voltage. Compared with the device performance of uncoordinated metalloporphyrin polymer, it was found that oxygen vacancies diffuse and migrate into PZnTPP-SFX layer with the assist of coordination metal. This study suggests that porphyrin-based polymers have great promise for synaptic simulation of artificial neural network.

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Section: Background and Originality Contentmentioning

confidence: 99%

Novel Porphyrin‐Containing Polymer Based Memristor for Synaptic Plasticity Simulation

et al. 2022

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“…Spiro compounds are organic compounds in which a single atom connects at least two rings. − They possess a combination of characteristics that other organic compounds do not, such as a rigid, stable structure, spiro conjugation, and spiro superconjugation. , Unlike flat aromatic heterocyclic compounds, the inherent high saturation (Fsp3) and significant three-dimensional characteristics of spiro rings make them widely used in the fields of synthetic chemistry, materials chemistry, and supramolecular chemistry. − The water solubility and lipophilicity properties of lead molecules can be optimized to improve their development into useful drugs that are less prone to producing resistance . Spiro motifs are ubiquitous in natural products and drugs (Figure ).…”

Section: Introductionmentioning

confidence: 99%

Spiro Derivatives in the Discovery of New Pesticides: A Research Review

Dai

Zhang

et al. 2022

J. Agric. Food Chem.

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Spiro compounds are biologically active organic compounds with unique structures, found in a wide variety of natural products and drugs. They do not readily lead to drug resistance due to their unique mechanisms of action and have, therefore, attracted considerable attention regarding pesticide development. Analyzing structure−activity relationships (SARs) and summarizing the characteristics of spiro compounds with high activity are crucial steps in the design and development of new pesticides. This review mainly summarizes spiro compounds with insecticidal, bactericidal, fungicidal, herbicidal, antiviral, and plant growth regulating functions to provide insight for the creation of new spiro compound pesticides.

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Oxidation of BINOLs by Hypervalent Iodine Reagents: Facile Synthesis of Xanthenes and Lactones

Zhang

Wirth

2022

Chemistry A European J

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Xanthene derivatives have broad applications in medicines, fluorescent probes, dyes, food additives, etc. Therefore, much attention was focused on developing the synthetic methods to prepare these compounds. Binaphthyl‐based xanthene derivatives were prepared through the oxidation of BINOLs promoted by the hypervalent iodine reagent iodosylbenzene (PhIO). Nine‐membered lactones were obtained through a similar oxidative reaction when iodoxybenzene (PhIO2) was used. Additionally, one‐pot reactions of BINOLs, PhIO and nucleophiles such as alcohols and amines were also investigated to provide alkoxylated products and amides in good to excellent yields.

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One‐Pot Synthesis of Spiro[fluorene‐9,9'‐xanthene] Derivatives

Abstract: This review summarizes a variety of economic and environmentally friendly one‐pot process to synthesize spiro[fluorine‐9,9'‐xanthene] derivatives (SFXs).

Cited by 6 publications

References 80 publications

Novel Porphyrin‐Containing Polymer Based Memristor for Synaptic Plasticity Simulation

Novel Porphyrin‐Containing Polymer Based Memristor for Synaptic Plasticity Simulation

Spiro Derivatives in the Discovery of New Pesticides: A Research Review

Oxidation of BINOLs by Hypervalent Iodine Reagents: Facile Synthesis of Xanthenes and Lactones

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