Search Results - "Du, Guangfen"

Asymmetric Desymmetrization of 1,3-Diketones via Intramolecular Benzoin Reaction by Li, Yuanzhen, Yang, Shuang, Wen, Genfa, Lin, Qiqiao, Zhang, Guoxiang, Qiu, Lin, Zhang, Xiaoyan, Du, Guangfen, Fang, Xinqiang

“…A general method for the asymmetric desymmetrization of 1,3-diketone substrates via chiral N-heterocyclic carbene catalyzed intramolecular benzoin reactions…”
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N-heterocyclic carbene catalyzed cyanation reaction of carbonyl compounds with ethyl cyanoformate and acetyl cyanide by Zhang, Jie, Du, GuangFen, Xu, YueKe, He, Lin, Dai, Bin

“…N-heterocyclic carbene (NHC) has been employed as an efficient catalyst for cyanation reaction of carbonyl compounds. Under catalysis of 1mol% NHCs, various…”
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N-Heterocyclic Carbene-Catalysed Direct Synthesis of Cyano Esters via Cyanation-Esterification Reaction of a-Keto Esters by Zhang, Jie, Wang, Ying, Du, Guangfen, Gu, Cheng-Zhi, Dai, Bin

“…The cyanation-esterification reaction of a-keto esters catalysed by N-heterocyclic carbenes （NHCs） is developed Under the catalysis of 10 tool%…”
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N-Heterocyclic Carbenes Catalyzed Phospho-Aldol Reaction of Aldehydes by He, Lin, Cai, Zhihua, Ma, Xiaowei, Du, Guangfen

“…An efficient phospho-aldol reaction of aldehydes catalyzed by N-heterocyclic carbenes （NHCs） has been developed. With 10 mol% stable NHC…”
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Hydrophosphonylation of Aldimines under Catalysts-Free Conditions by 蔡志华 范业成 杜广芬 何林

“…Trimethylsilyl phosphite reacted with aldimines efficiently under catalysts-free conditions, giving a-aminophosphonates in good to excellent yields…”
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Synthesis of Benzo[b]fluoranthenes and Spiroacridines from Fluorene-Derived Alkenes and N‑Arylimines via a Tandem Reaction with Benzynes by Wang, Weihua, Wan, Hongwei, Du, Guangfen, Dai, Bin, He, Lin

“…Two tandem processes involving the cycloaddition of benzynes have been developed for the synthesis of polyaromatic hydrocarbons. Benzynes react with…”
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Synthesis of Vinyl Sulfones and Benzoxathiins via Base‐Catalyzed Reactions of o ‐Hydroxyaryl Thiosulfonates and Ynones by Tang, Delin, Zhang, Fang, Luo, Jinyun, Cai, Zhihua, He, Lin, Du, Guangfen

“…The cyclization reaction and hydrosulfonylation reaction of ynones have been simultaneously realized through a single operation. Under the mediation of cesium…”
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SuFEx Reactions of Sulfonyl Fluorides, Fluorosulfates, and Sulfamoyl Fluorides Catalyzed by N‑Heterocyclic Carbenes by Lin, Muze, Luo, Jinyun, Xie, Yu, Du, Guangfen, Cai, Zhihua, Dai, Bin, He, Lin

“…Sulfur­(VI) fluoride exchange (SuFEx) click chemistry provides a powerful tool for the rapid assembly of modular connections. Herein, we report an…”
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Direct Assembly of Polysubstituted Naphthalenes via a Tandem Reaction of Benzynes and α‑Cyano-β-methylenones by Wang, Qiang, An, Yi, Du, Guangfen, Cai, Zhi-Hua, Dai, Bin, He, Lin

“…A mild and transition-metal-free benzannulation reaction for the construction of the naphthalene skeleton has been described. Benzynes react with…”
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Catalytic Asymmetric Conjugate Addition of 2‑Methyl-3,5-dinitrobenzoates to Unsaturated Ketones by Chen, Xiangjie, An, Yi, Du, Guangfen, Zhao, Yujie, He, Lin, Zhao, Jixing, Li, Shi-Wu

“…Asymmetric catalytic vinylogous Michael addition of 2-methyl-3,5-dinitrobenzoates to unsaturated ketones catalyzed by chiral rhodium catalysts has been…”
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Anxiety and Depression Among Imaging Doctors in Post-COVID-19 Period by Li, Weiguo, Mao, Xuesong, Li, Jieqing, Fang, Lianying, Du, Guangfen, Qiao, Jianwei, Jia, Ximing

“…To investigate the mental state of medical imaging staff in Shandong Province, China, who have been on the forefront of the COVID-19 epidemic during its late…”
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N-Heterocyclic Carbene-Catalysed Direct Synthesis of Cyano Esters via Cyanation-Esterification Reaction of α-Keto Esters by Zhang, Jie, Wang, Ying, Du, Guangfen, Gu, Cheng-Zhi, Dai, Bin

“…The cyanation‐esterification reaction of α‐keto esters catalysed by N‐heterocyclic carbenes (NHCs) is developed. Under the catalysis of 10 mol%…”
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Analysis of the pigments on painted pottery figurines from the Han Dynasty's Yangling Tombs by Raman microscopy by Zuo, Jian, Zhao, Xichen, Wu, Ruo, Du, Guangfen, Xu, Cunyi, Wang, Changsui

“…The pigments on painted pottery figurines from the Han Dynasty's Yangling Tombs were analysed by Raman microscopy. It was found that BaCuSi2O6 is included in…”
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