Fengzhi Yang

Zhongshan Hospital

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Lianyou Zheng

Jilin University

Xu Bai

Nanjing Tech University

Qun Dang

Henan Provincial People's Hospital

Yuewei Zhang

First Hospital of Jilin University

Lei Fu

Shanghai Jiao Tong University

Dongsheng Xie

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)

Qingzi Xing

Tsinghua University

Shu-xin Zheng

Tsinghua University

Pengfei Ma

Aerospace Information Research Institute

Wenlu Liu

Harbin Medical University

Cooperative Institutions

Shanghai Jiao Tong University

Tsinghua University

Chinese Academy of Sciences

Jilin University

Northwest Institute of Nuclear Technology

Tianjin University

Peking University

Harbin Institute of Technology

Tenneco (United States)

Huazhong University of Science and Technology

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ChemInform Abstract: A Cascade of Acid‐Promoted C—O Bond Cleavage and Redox Reactions: From Oxa‐Bridged Benzazepines to Benzazepinones.

ChemInform (2015)

Yuewei Zhang Fengzhi Yang Lianyou Zheng Qun Dang Xu Bai

Abstract The synthetic potential of the method is demonstrated by the transformation of compound (X) into the drug tolvaptan (XI).

Benzazepines

Cleavage (geology)

Bond cleavage

10.1002/chin.201519234

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Citations (0)

Dual Transformer Based Current-Fed Bidirectional DC-DC Converter with Wide Operating Range

IEEE Journal of Emerging and Selected Topics in Power Electronics (2024)

Xuewei Pan Fengzhi Yang Danyang Bao Ruihong Zhang

10.1109/jestpe.2024.3394877

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Citations (0)

A Cascade of Acid-Promoted C–O Bond Cleavage and Redox Reactions: From Oxa-Bridged Benzazepines to Benzazepinones

Organic Letters (2014)

Yuewei Zhang Fengzhi Yang Lianyou Zheng Qun Dang Xu Bai

A sequence of C–O bond cleavage and redox reactions in oxa-bridged azepines was realized under acid promoted conditions. This protocol provides an atom-economical and straightforward approach to access benzo[b]azepin-5(2H)-ones in high yields. The formal synthesis of tolvaptan was achieved by exploiting this new transformation.

Benzazepines

Cleavage (geology)

Bond cleavage

10.1021/ol502971e

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Citations (20)

3D printed, environment tolerant all-solid-state capacitive ionic skin

Journal of Materials Chemistry A (2022)

Yixuan Wu Ling Cai Guangxue Chen Fengzhi Yang Minghui He

By the photopolymerization 3D printing of photopolymerizable deep eutectic solvents, a stable and sensitive solid-state capacitive ionic skin is reported.

3d printed

10.1039/d2ta05388h

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Citations (17)

A Cascade Reaction with Iminium Ion Isomerization as the Key Step Leading to Tetrahydropyrimido[4,5-d]pyrimidines

Organic Letters (2008)

Lianyou Zheng Fengzhi Yang Qun Dang Xu Bai

A novel cascade reaction of aminopyrimidines 1 with N-alkyl amino acids or analogues was investigated. The keys to this cascade are the isomerization of an iminium ion formed between the aldehyde group in pyrimidine and the secondary amine of an amino acid, and subsequent cyclization to the neighboring amino group. This sequence could be useful in the synthesis of novel tetrahydropyrimido[4,5-d]pyrimidine libraries.

Iminium

Cascade reaction

10.1021/ol703049j

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Citations (85)

A Rapid and Practical Catalytic Esterification for the Preparation of Caffeic Acid Esters

Journal of Chemical Research (2014)

Dongsheng Xie Fengzhi Yang Jin Xie Man Zhang Wenlu Liu

A convenient and practical catalytic method for the preparation of caffeic acid esters is reported. This esterification was carried out with high efficiency in the presence of ytterbium triflate in nitromethane without any other auxiliary reagents. The wide scope of application and especially the higher reactivity and more convenient procedure than previous methods make it a valuable application for the synthesis of caffeic acid esters and other cinnamic acid esters.

Trifluoromethanesulfonate

10.3184/174751914x14146000527920

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Citations (5)

Antiproliferative activity and SARs of caffeic acid esters with mono-substituted phenylethanols moiety

Bioorganic & Medicinal Chemistry Letters (2016)

Jin Xie Fengzhi Yang Man Zhang Celine Lam Yixue Qiao

Moiety

HeLa

MTT assay

IC50

10.1016/j.bmcl.2016.12.007

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Citations (28)

Parametric design platform for power electronic switches in the hybrid DC circuit breaker

IET conference proceedings. (2021)

Zhiping Cheng Fengzhi Yang Yang Wu Yang Wu Chao Gao

10.1049/icp.2020.0232

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Citations (0)

Decoupling a transversely-coupled beam based on symplectic transformation theory and its application

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2020)

Pengfei Ma Shu-xin Zheng X. D. Yu R. Tang Changtong Du

Transfer matrix

Hamiltonian (control theory)

Decoupling (probability)

10.1016/j.nima.2020.163925

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Citations (1)

Chatter Suppression via an Oscillating Cutter

Journal of Manufacturing Science and Engineering (1999)

Fengzhi Yang B. Zhang Jiguo Yu

Chatter is one of the critical issues in a machining process since it deteriorates the surface quality of a workpiece and reduces machining efficiency. A new method is developed to suppress chatter in which an oscillating cutter is used to machine the workpiece through a stepping motor and a transmission mechanism so as to vary tool rake angle continuously and periodically in process. Theoretical analyses are performed on the stability of the cutting system, and verified by the experimental studies. Both theoretical analyses and experimental results indicate that the method can suppress chatter in a turning process effectively. With the application of an oscillating cutter, the amplitude can be reduced by 80 percent in cutting a steel workpiece.

Rake

Rake angle

10.1115/1.2830575

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Citations (22)