Zn(II)-Catalyzed Synthesis of Piperidines from Propargyl Amines and Cyclopropanes Terry P. Lebold Andrew B. Leduc Michael A. Kerr 10.1021/ol901435k.s001 https://acs.figshare.com/articles/journal_contribution/Zn_II_Catalyzed_Synthesis_of_Piperidines_from_Propargyl_Amines_and_Cyclopropanes/2834305 The reaction of benzyl-protected propargyl amines and 1,1-cyclopropane diesters in the presence of catalytic Zn(NTf<sub>2</sub>)<sub>2</sub> allows access to highly functionalized piperidines in excellent yields. The process proceeds via a tandem cyclopropane ring-opening/Conia−ene cyclization. 2009-08-20 00:00:00 Piperidine presence cyclization access Propargyl Amines Cyclopropane propargyl Synthesi amines diester functionalized piperidines cyclopropane Zn yield tandem process proceeds