A Simple and Efficient Method for the Synthesis of Novel Pyrazolyl Isoxazoline Derivatives Using Hypervalent Iodine (III) Reagent
作者:Rajesh Kumar、Manoj Kumar、Om Prakash
DOI:10.1002/hc.21320
日期:2016.7
A series of novel pyrazolyl isoxazolines were synthesized by 1,3-dipolar cycloaddition of pyrazolyl nitrile oxide with various activated alkene, such as acrylonitrile, methyl acrylate, and vinyl acetate, in the presence of iodobenzene diacetate in methanol containing a catalytic amount of TFA at room temperature (13 compounds upto 92% yield were isolated).