An efficient and mild Ni(ClO4)2-catalyzed [3+2] cycloaddition of N-tosylaziridines and aldehydesvia CâC bond cleavage was developed. The cycloaddition reaction proceeds with high diastereoselectivity and regioselectivity leading to highly substituted 1,3-oxazolidines. Notably, this novel reaction can be easily expanded to gram level scale and the thermal conditions cannot achieve the same transformation.
开发了一种高效且温和的Ni(
ClO4)2催化的N-托辛基氮杂环
丙烯和醛的[3+2]环加成,通过C–C键断裂进行。该环加成反应具有高的非对映选择性和区域选择性,生成高度取代的1,3-氧杂
哌啶。值得注意的是,这种新反应可以轻松扩展到克级规模,而热条件无法实现相同的转化。