A highly efficient method is disclosed for the synthesis of 1,2-dichalcogen heterocycles via [3 + 2] cycloaddition of cyclopropenone derivatives and elemental chalcogens. Different from other cyclopropenone derivatives, cyclopropenselenones undergo unprecedented rearrangement with elemental sulfur. The features of this protocol include mild reaction conditions, high efficiency, excellent atom economy
公开了一种通过
环丙烯酮衍
生物和元素
硫属元素的[3 + 2]环加成合成1,2-二氢杂环的高效方法。与其他
环丙烯酮衍
生物不同,
环丙烯酮与元素
硫会经历前所未有的重排。该方案的特点包括反应条件温和,效率高,原子经济性好,克级能力和良好的区域选择性。