Synthesis of novel spiro-condensed 2-amino-4H-pyrans based on 1,2-benzoxathiin-4(3H)-one 2,2-dioxide
作者:Galina V. Grygoriv、Dmitry A. Lega、Lucjusz Zaprutko、Andrzej K. Gzella、Ewa Wieczorek-Dziurla、Valentine P. Chernykh、Leonid A. Shemchuk
DOI:10.1007/s10593-019-02450-4
日期:2019.3
series of new spiro-condensed 2-amino-4H-pyrans were synthesized by three-component interaction of 1,2-benzoxathiin-4(3H)-one 2,2-dioxide, malononitrile, and cyclic carbonyls in moderate to high yields. This is one of the first examples of 1,2-benzoxathiin-4(3H)-one 2,2-dioxide application in multicomponent transformations.
通过1,2-苯并氧杂i啶-4(3 H)-1,2,2-二氧化物,丙二腈和环状羰基化合物的三组分相互作用合成了一系列新的螺缩合的2-氨基-4 H-吡喃。高产。这是在多组分转化中1,2-苯并噻吨-4(3 H)-一个2,2-二氧化物应用的第一个例子之一。