Qianqian Shi

Diradical Generation/Complexation via Relayed Single-Electron Transfer

Qianqian Shi, Yun-Dong Fu, Xingxing Wu, Yu Lan et autres

The concept of single-electron transfer (SET) has been widely employed to rationalize the generation and complexation of radical species, facilitating a wealth of efficient synthetic strategies with high atom economy. However, precisely locating a SET transition state has been and continues to …

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Prediction on origin of chemoselectivity for N-Heterocyclic carbene (NHC)-catalyzed radical relay reactions

Qianqian Shi, Keke He, Zhile Dang, Jing Zhang et autres

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Formaldehyde Removal Based on Multifunctional Zeolites With Single Silver Atoms and Silver Nanoparticles

Decui Yao, Tianbi Zhou, Qianqian Shi, Zhenzhen Miao et autres

ABSTRACT Formaldehyde removal is essential for protecting human health and improving indoor air quality. In this work, a simple, cost‐effective, less time‐consuming and environmentally friendly strategy was used to prepare the multifunctional Ag + ‐exchanged FAU zeolite composite, characterized by the presence …

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Palladium-Catalyzed Asymmetric Hydrogenolysis of Epoxides

Xiang Li, Qianqian Shi, Qing‐Xian Xie, Chang‐Bin Yu et autres

Hydrogenolysis is one of the fundamental transformations in organic synthesis. Despite numerous studies in this field over the last few decades, asymmetric C–O bond hydrogenolysis remains less explored. The enantioselective hydrogenolysis of epoxides catalyzed by transition metals can usually provide high-value-added chiral …

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Regulating the MnOx structure in Ru/MnOx/γ-Al2O3 catalyst to enhance the oxidation of benzyl alcohol with molecular oxygen in liquid phase

Jianhang Zhang, Qianqian Shi, Pei-Zheng Zhao, Qinghu Tang

Ru/MnO x /γ-Al 2 O 3 catalysts prepared by a facile sequential precipitation- deposition method were investigated for the aerobic oxidation of benzyl alcohol with molecular oxygen . The physicochemical properties of the synthesized catalyst were characterized by multiple analytical and characterization …

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Rational Design of Bifunctional Imidazoles as Acyl Transfer Catalysts: Dynamic Kinetic Resolution of 5-Hydroxy-furanones/3-Hydroxy-phthalides

Meng Shan, Yongmei Yu, Shuping Yang, Mengqi Wang et autres

A new class of chiral bifunctional imidazole catalysts has been designed and synthesized, utilizing economical amino alcohols as precursors, significantly expanding the diversity of N-1 position catalysts. These catalysts exhibit excellent substrate activation and stereoselectivity control and have been successfully employed in …

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Virtual screening–based discovery of AI-2 quorum sensing inhibitors that interact with an allosteric hydrophobic site of LsrK and their functional evaluation

Qianqian Shi, Huiqi Wen, Yijie Xu, Xu Zhao et autres

Introduction: Quorum sensing (QS) is a bacterial intracellular and intercellular communication system that regulates virulence factor production, biofilm formation, and antibiotic sensitivity. Quorum-sensing inhibitors (QSIs) are a novel class of antibiotics that can effectively combat antibiotic resistance. Autoinducer-2 (AI-2) is a universal …

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Comparison of quantitative assessment and efficiency of diabetic retinopathy diagnosis using ETDRS seven-field imaging and two ultra-widefield imaging

Yuanyuan Xiao, Zixu Huang, Qiongqiong Yuan, Xiaofeng Du et autres

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Deaminative radical reactions via relayed proton-coupled electron transfer

Qianqian Shi, Kuohong Chen, Limin Guo, Lili Han et autres

The detailed mechanism of these kinds of N-heterocyclic carbene-catalyzed deaminative radical reactions has been explored in theory for the first time.

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NHC-catalyzed enantioselective radical reactions of enal and pyridinium salt: mechanism and origin of regio- and stereoselectivities

Kuohong Chen, Jiaming Zhang, Qianqian Shi, Lili Han et autres

The origin of regio- and stereoselectivities of NHC-catalyzed enantioselective radical reactions of an enal and a pyridinium salt has been explored via theory for the first time.

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Desymmetrization of N-Cbz glutarimides through N-heterocyclic carbene organocatalysis

Zhouli Hu, Chenlong Wei, Qianqian Shi, Xianfang Hong et autres

Over the past decade, the catalysis of N-heterocyclic carbenes has achieved significant advances. In this area, aldehydes, enals, and esters, are commonly employed as starting materials through various catalytic activation modes. However, NHC-activated strategy of amide and its derivatives remains elusive. Described …

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Retraction notice to “Ginsenoside Rg1 protects human retinal pigment epithelial ARPE-19 cells from toxicity of high glucose by up-regulation of miR-26a” [Life Sci. 221 (2019) 152–158]

Qianqian Shi, Xiuying Chen, Guangli Sun, Lili Wang et autres

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