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| 1 | Chen's Reagent: A Versatile Reagent for Trifluoromethylation,Difluoromethylenation, and Difluoroalkylation in Organic Synthesis显示文摘Methyl fluorosulfonyldifluoroacetate(FSO2CF2CO2Me or MFSDA),often called'Chen's reagent',is commonly used to synthesize trifluoromethylated and difluoroalkylated compounds.This important reagent was initially developed as an efficient trifluoromethylating agent by Professor Qing-Yun Chen and co-workers at Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences in 1989. | Qiqiang Xie Jinbo Hu | 2020 | Chinese Journal of Chemistry2020，38，2： | 6 |
| 2 | Expedient Trifluoromethylacylation of Styrenes Enabled by Photoredox Catalysis显示文摘Herein,we disclosed a photoredox enabled protocol for trifluoromethylacylation of styrenes through a radical-carboanion cascade and subsequent oxidation.With a broad range of aldehydes and inexpensive Langlois reagent as acyl and CF3 precursor,respectively,the alkene motif could be readily converted into β-trifluoromethyl ketones in moderate to good yields and with excellent regioselectivity.Besides CF3,di-,mono-and non-fluorinated C-radicals were revealed amenable in this reaction,providing good opportunity for the construction of structurally diverse ketones of interest in pharmaceutical research.Additionally,the utility of this protocol was further demonstrated by successful extension to trifluoromethylarylation and-alkylation by employing arylcyanide or acrylates in place of carbonyls. | Lu Wang Heng Zhang Chuan Zhu Chao Feng | 2022 | Chinese Journal of Chemistry2022，40，1： | 3 |
| 3 | 可见光催化烯烃三氟甲基化反应研究进展显示文摘将三氟甲基引入有机分子可以极大地改变分子的性能,通过光催化烯烃的双官能团化途径来合成三氟甲基化合物是一种既符合绿色化学理念,又具有多重优势的合成方法。本文从光催化烯烃卤化三氟甲基化、氧化三氟甲基化、氨化三氟甲基化,碳化三氟甲基化,氢化三氟甲基化五个方面综述了近年来的研究进展,并对光催化烯烃三氟甲基化反应做出了总结与展望。 | 王智厚 | 2022 | 广东化工2022，49，20： | 0 |
| 4 | TEMPO-Regulated Regio-and Stereoselective Cross-Dihalogenation with Dual Electrophilic X^(+) Reagents显示文摘A TEMPO catalyzed cross-dihalogenation reaction was established via redox-regulation of the otherwise complex system of dual electrophilic X+reagents.Formally,the ICl,BrCl,I_(2) and Br_(2) were generated in-situ,which enabled high regio-or stereoselective access to a myriad of iodochlorination,bromochlorination and homo-dihalogenation products with a wide spectrum of functionalities.With its mild conditions and operational simplicity,this method could enable wide applications in organic synthesis,which was exemplified by divergent synthesis of two pharmaceuticals.Detailed mechanistic investigations via radical clock reaction,pinacol ring expansion and Hammett experiments were conducted,which confirmed the intermediacy of halonium ion.In addition,a dynamic catalytic model based on the versatile catalytic role of TEMPO was proposed to explain the selective outcomes. | Yi Kong Tongxiang Cao Shifa Zhu | 2021 | Chinese Journal of Chemistry2021，39，11： | 0 |
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