Yang Li

Tandem cyclohexen-3-yne and 1,2,3-cyclohexatriene reactions

Wenhao Yin, Ranran Xia, Li Xu, Lianggui Li et autres

There are three classes of neutral 6-membered reactive species, namely didehydrobenzene (benzyne (1)), dihydrobenzenes (cyclohexyne (2) and 1,2-cyclohexadiene (3)), and benzene isomers (cyclohexen-3-yne (4), 1,2,3-cyclohexatriene (5), and 1,2,4-cyclohexatriene (6)). Although intermediates 1-3 have found broad synthetic applications, the benzene isomers 4-6 received …

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Unlocking Azulene Functionalization via Strain-Induced Azulyne Intermediates

Xiaoling Yuan, L L Zhang, Qingshuang Zhang, Hanxue Fu et autres

Azulene, a nonbenzenoid aromatic isomer of naphthalene with exceptional optoelectronic properties, has long eluded general methods for selective functionalization, especially on its electron-deficient seven-membered ring. Here, we overcome this limitation by introducing the first practical precursors to azulyne intermediates. In stark contrast …

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Construction of Biaryl Skeletons Initiated with Benzyne Insertion into C═S Double Bond of Pyridine‐2(1 H )‐thiones

Long Long, Liyuan Chen, Hua‐Wen Fu, Liu Wu et autres

Benzyne insertion reactions have become a versatile strategy for introducing diverse functional groups onto the benzene ring under transition-metal-free conditions. However, research on employing this method to introduce aryl/alkenyl groups onto the benzene ring is rather limited, with constrained structural scopes. Here, …

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Construction of Biaryl Skeletons Initiated with Benzyne Insertion into C═S Double Bond of Pyridine‐2(1 H )‐thiones

Long Long, Liyuan Chen, Hua‐Wen Fu, Liu Wu et autres

Abstract Benzyne insertion reactions have become a versatile strategy for introducing diverse functional groups onto the benzene ring under transition‐metal‐free conditions. However, research on employing this method to introduce aryl/alkenyl groups onto the benzene ring is rather limited, with constrained structural scopes. …

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Synthesis of highly strained para-cyclophanes via ring-expansion [5,5]-sigmatropic rearrangement reaction

Zhonghong Chen, Weihao Yang, Maomao Jia, Jiarong Shi et autres

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Automated analysis method and device for PDS catalyst in HPF process

Jiaxin Wang, Mengyuan Huang, Liang zhong Zhao, Baoli Li et autres

Desulfurization of coke oven gas (COG) is a critical step for achieving green and sustainable development in the coking industry. Ammonium binuclear cobalt phthalocyanine sulfonate (PDS), serving as the core catalyst in the Hydroquinone-PDS-Ferrous sulfate (HPF) desulfurization process, requires precise concentration monitoring …

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Turning inward in difficulties: R&D human resource slack, technological diversification, and independent innovation

Huijuan Li, Yinfei Zhao, Yang Li, Yong Wang

Independent innovation emphasizes the self-reliance and control of all key links. Slack resources within an organization, especially for innovation, are the critical resources that are controllable for independent innovation. However, existing research still lacks evidence on the areas of slack innovation resources …

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Molecular dynamics simulation study on non-equilibrium melting of sodium crystals at high heating rates

Tingting Ma, Yang Li, Tong‐Tong Liu, Qinglin Cheng et autres

The non-equilibrium melting of Na crystals at high heating rates and the evolutions of the atomic clusters are studied by the MD method and PTM analysis. Results show that as the heating rate rises from 1 × 1011 K/s to 2 × …

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Switchable chemoselective aryne reactions between nucleophiles and pericyclic reaction partners using either 3-methoxybenzyne or 3-silylbenzyne

Hongcheng Tan, Shuxin Yu, Xiaoling Yuan, Liyuan Chen et autres

Arynes are known to serve as highly reactive benzene-based synthons, which have gained numerous successes in preparing functionalized arenes. Due to the superb electrophilic nature of these fleeting species, however, it is challenging to modulate the designated aryne transformation chemoselectively, when substrates …

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The enhanced adsorption of layered double hydroxides modification from single to ternary metal for fluoride by TEA-assisted hydrothermal method

Huiyuan Tian, Yang Li, Xia Mengyan, Cui Baoyu et autres

Layered double hydroxides (LDHs) have attracted increasing attention as promising candidates by anion exchanges and selective adsorption in the fluoride treatment field. In this study, three new ternary Zn-Co-Cr-LDHs were synthesized by primarily a one-step TEA-assisted hydrothermal process at various times. They …

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One pot facile visible-light promoted synthesis of quinazolinones via Csp3-H oxidation in aqueous media

Taiping Chen, Huan Yang, Jiangping Xie, Lingyu Wei et autres

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Layered by layered construction of three novel ZnCo-LDHs/g-C3N4 for the removal of sunset yellow by adsorption-photocatalytic process

Yang Li, Huiyuan Tian, Xia Mengyan, Du Xiuhong et autres

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