Synthesis of <i>trans</i>-2-Substituted Cyclopropylamines from α-Chloroaldehydes
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 zinchalidesalts and that this