Synthesis and Biological Evaluation of 3-(Substituted-benzylidene)-1,3-dihydro-indolin Derivatives as Human Protein Kinase CK2 and p60c-Src Tyrosine Kinase Inhibitors
cycloaddition of nitrile imines with 3-alkenyl-oxindoles was catalyzed by a new chiral Mg(ClO4)2 complex of an N,N′-dioxide ligand. The reaction is so far the sole catalytic synthesis of spiro-pyrazoline-oxindole derivatives. A wide variety of substrates were explored to obtain good yields (up to 98%) and excellent enantioselectivities (up to 99%). This cycloaddition expands the scope of propargyl anion type 1
Synthesis of (
<i>E</i>
)‐3‐Alkylideneindolin‐2‐ones by an Iron‐Catalyzed Aerobic Oxidative Condensation of Csp
<sup>3</sup>
–H Bonds of Oxindoles and Benzylamines
作者:Kovuru Gopalaiah、Ankit Tiwari
DOI:10.1002/ejoc.202001300
日期:2020.12.13
An iron‐catalyzed direct access to (E)‐3‐alkylideneindolin‐2‐ones through oxidative condensation of oxindoles with benzylamines is described. The procedure utilizes molecular oxygen as a clean and terminal oxidant.
Advanced palladium free approach to the synthesis of substituted alkene oxindoles <i>via</i> aluminum-promoted Knoevenagel reaction
作者:Daria S. Novikova、Tatyana A. Grigoreva、Andrey A. Zolotarev、Alexander V. Garabadzhiu、Vyacheslav G. Tribulovich
DOI:10.1039/c8ra07576j
日期:——
A synthetic route for the synthesis of C24, as well as for the design of focused libraries of direct AMPK activators was developed based on a convergent strategy. The proposed scheme corresponds to the current trends in C–H bond functionalization. The use of aluminum isopropoxide for the Knoevenagel condensation of oxindole with benzophenones is a noticeable point of this work.
A series of spiro [pyrrolidine-2,3'-oxindole] derivatives were synthesized by 1,3-dipolarcycloadditionreaction of isatin, alpha-amino acid and (E)-beta-substituted-styrene. Four kinds of trapping dipolarophiles were introduced into this reaction, and the regioselectivity of these reactions proved to be the same fashion. Bioactivity screening showed these compounds were active on anti-tumor in A549
CeCl<sub>3</sub>·7H<sub>2</sub>O catalyzed C(sp<sup>2</sup>)−CN bond construction on water: Synthesis of (<i>Z</i>)-2-(2-Oxoindolin-3-ylidene)-2-arylacetonitriles
作者:Yan Du、Zheng Li
DOI:10.1080/00397911.2018.1540050
日期:2019.1.2
Abstract An environmentallyfriendly method for the construction of C(sp2)-CN bond on water has been described, and (Z)-2-(2-oxoindolin-3-ylidene)-2-arylacetonitriles were synthesized by using CeCl3· 7H2O as a catalyst. The reaction offers access to alkenyl nitriles in good-to-excellent yield. The investigations will be beneficial to reduce the use of toxic organic solvents and explore the efficient