作者:Michael S. West、L. Reginald Mills、Tyler R. McDonald、Jessica B. Lee、Deeba Ensan、Sophie A. L. Rousseaux
DOI:10.1021/acs.orglett.9b03172
日期:2019.10.18
report the synthesis of trans-2-substituted cyclopropylamines in high diastereoselectivity from readily available α-chloroaldehydes. The reaction proceeds via trapping of an electrophilic zinc homoenolate with an amine followed by ring closure to generate the cyclopropylamine. We have also observed that cyclopropylamine cis/trans-isomerization occurs in the presence of zinc halide salts and that this
环丙胺在药物和农用化学品中普遍存在。在本文中,我们报道了从容易获得的α-氯醛以高非对映选择性合成反式-2-取代的环丙胺。该反应通过用胺捕获亲电性均烯酸锌来进行,然后闭环以产生环丙胺。我们还观察到环丙胺的顺/反异构化在卤化锌盐的存在下发生,并且可以通过添加极性非质子助溶剂来关闭该过程。