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22 results on '"Fang, Guichun"'

3. Synthetic Automations: A Revolution From "Stone Age" to Modern Era.

Author

Fang, Guichun, Lin, Dian‐Zhao, and Liao, Kuangbiao

Abstract

Traditional synthesis made outstanding achievements but still suffers various drawbacks, such as manual operation, poor efficiency, and lack of reproducibility. Thanks to the development of laboratory automation, synthetic chemistry is now chasing a pavement from a labor‐intensive process to intelligent automation. Herein, we highlight some of the most recent representative breakthroughs in automated synthesis and present an outlook for this field. We hope this Topic can arouse chemists' interest in automated synthesis and drive synthetic automation to a better intelligent and automatic way. [ABSTRACT FROM AUTHOR]

Published
2023
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15. Silver(I)-Promoted Radical Sulfonylation of Allyl/Propargyl Alcohols: Efficient Synthesis of γ-Keto Sulfones.

Author

Fang, Guichun, Liu, Jianquan, Shang, Weidong, Liu, Qun, and Bi, Xihe

Subjects
*SULFONES, *FUNCTIONAL groups, *TRIMERIZATION, *CHEMICAL reactions, *SULFONYL compounds
Abstract

An efficient Ag2CO3-promoted sulfonylation of allyl/propargyl alcohols with sodium sulfinates has been developed. The reaction tolerates a wide range of functional groups to deliver γ-keto sulfones in high yields (up to 93 %). Propargyl alcohols furnished trimerization product 1,3,5-triaroylbenzenes in the presence of sodium methanesulfinate under the standard conditions. A mechanism involving a sulfonyl radical was suggested. [ABSTRACT FROM AUTHOR]

Published
2016
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22. ChemInform Abstract: An Atom-Economic Route to Thiophenes and 2,2′-Bithiophenes by Intramolecular Transannulation of gem-Dialkylthio Enynes.

Author

Fang, Guichun, Li, Jichun, Wang, Yeming, Gou, Mingyu, Liu, Qun, Li, Xingqi, and Bi, Xihe

Subjects
*THIOPHENES, *ENYNES, *CHEMICAL synthesis, *PHOTOVOLTAIC power systems, *ELECTROLUMINESCENCE
Abstract

This novel, simple, and highly efficient method allows the synthesis of different functionalized thiophenes and bithiophenes. [ABSTRACT FROM AUTHOR]

Published
2014
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