Synthesis of cis-2-alkoxycyclopropylamines via intramolecular cyclization of 2-azaallylic anions derived from alkoxybrominated N-(arylidene)-2-methyl-2-propenylamines
作者:Sven Mangelinckx、Santosh T. Kadam、Elena Semina、Gert Callebaut、Filip Colpaert、Dirk De Smaele、Norbert De Kimpe
DOI:10.1016/j.tet.2013.02.094
日期:2013.5
N-(Arylidene)-2-alkoxy-3-bromo-2-methylpropylamines, obtained in a straightforward way via regiospecific alkoxybromination of the corresponding N-(2-methyl-2-propenyl)imines, represent promising densely functionalized synthetic building blocks. The substituted N-(3-bromopropyl)imines were deprotonated to the corresponding 2-azaallylic anions, which underwent a highly diastereoselective intramolecular