菲尔:科伦坡米廖雷罗,玛丽亚贝伦。Consejo Nacional de Investigaciones Cientificas y Tecnicas。Centro Cientifico Tecnologico Conicet - 拉普拉塔。Centro de Investigacion y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco"。拉普拉塔国立大学。Facultad de Ciencias Exactas。Centro de Investigacion y Desarrollo en Ciencias Aplicadas;阿根廷
Synthesis of Multi-Functionalized Chromeno[2,3-c]pyrrol-9(2H)-ones: Investigation and Application of Baker-Venkataraman Rearrangement Involved Reactions Catalyzed by 4-(Dimethylamino)pyridine
作者:Yanjun Yu、Yun Hu、Weiyan Shao、Jianing Huang、Yinglin Zuo、Yingpeng Huo、Linkun An、Jun Du、Xianzhang Bu
DOI:10.1002/ejoc.201100435
日期:2011.8
An efficient one-potsynthesis of multi-functionalized chromeno[2,3-c]pyrrol-9(2H)-onesfrom 1,3-diaryl-1,3-diketones and amino acids is described. The synthesis is based on the 4-(dimethylamino)pyridine-catalyzed Baker–Venkataraman rearrangement and subsequent reactions.
Novel Bifunctionalization of Activated Methylene: Base‐Promoted Trifluoromethylthiolation of β‐Diketones with Trifluoromethanesulfinyl Chloride
作者:Dong‐Wei Sun、Min Jiang、Jin‐Tao Liu
DOI:10.1002/chem.201901781
日期:2019.8.14
β-diketones or β-ketoesters with trifluoromethanesulfinyl chloride. A series of α-trifluoromethylthiolated α-chloro-β-diketones and α-chloro-β-ketoesters were obtained in moderate to good yields under mild conditions. When β-diketones containing a phenyl group with a hydroxyl or amino substituent at the ortho position were used as substrates, intramolecular trifluoromethylthiolation/cyclizationreaction took
One-pot synthesis of 3-(furan-2-yl)-4H-chromen-4-ones from 1-(2-hydroxyphenyl)butane-1,3-diones and 2,5-dimethoxy-2,5-dihydrofuran catalyzed via K10 montmorillonite under solvent-free conditions
A new, concise and efficient method of one-potsynthesis of 3-(furan-2-yl)-4H-chromen-4-ones was developed using K10 montmorillonite catalysis undersolvent-freeconditions.
作者:Gabriela Maciel Diogo、Josimara Souza Andrade、Policarpo Ademar Sales Junior、Silvane Maria Fonseca Murta、Viviane Martins Rebello Dos Santos、Jason Guy Taylor
DOI:10.3390/molecules25020397
日期:——
rates in the chronic phase. Furthermore, strong side effects may result in discontinuation of this treatment. Faced with this situation, we report the synthesis and trypanocidalactivity of 3-benzoyl-flavanones. Novel 3-benzoyl-flavanone derivatives were prepared in satisfactory yields in the 3-step synthetic procedure. According to recommended guidelines, the whole cell-based screening methodology
CF3SOCl-promoted intramolecular cyclization of β-diketones: An efficient synthesis of flavones
作者:Dong-Wei Sun、Yong-Yan Zhou、Min Jiang、Tang Nian、Jin-Tao Liu
DOI:10.1016/j.tet.2021.132226
日期:2021.7
An efficient intramolecular cyclization reaction of β-diketones containing a phenyl group with an ortho-hydroxyl substituent was achieved. Using CF3SOCl as an additive, the reaction took place under transition-metal-free and mild conditions. A series of flavones were synthesized in moderate to excellent yields.