Construction of functionalized 2,3-dihydro-1,4-benzoxazines via [5 + 1] annulations of 2-halo-1,3-dicarbonyl compounds with imines
作者:Ya-Ru Zhang、Jian-Wu Xie、Xu-Jiao Huang、Wei-Dong Zhu
DOI:10.1039/c2ob25927c
日期:——
A series of functionalized 2,3-dihydro-1,4-benzoxazines were obtained in moderate to excellent yields via domino [5 + 1] annulations of 2-halo-1,3-dicarbonyl compounds 2 with imines 1 under mild conditions and the application of this method in the synthesis of bioactive analogues, such as functionalized tetracyclic-1,4-benzoxazines which contain two new heterocyclic rings and one quaternary carbon
在中度得到以优异的产率的一系列官能化2,3-二氢-1,4-苯并恶嗪的经由多米诺[5 + 1] 2-卤代-1,3-二羰基的化合物annulations 2与亚胺1温和的条件和所述下还开发了该方法在生物活性类似物合成中的应用,例如含有两个新的杂环和一个季碳中心的功能化四环-1,4-苯并恶嗪。