Samarium(II)-iodide catalysed addition of N -chloroamines to double bonds, an iodide-catalysed reaction
作者:Richard Göttlich、Michael Noack
DOI:10.1016/s0040-4039(01)01620-3
日期:2001.10
samarium(II)-iodide catalysis to the corresponding piperidines. These conditions allow the complete rearrangement of 2-(chloromethylpyrrolidines), the proposed primary products of the reaction, via an aziridinium ion to the corresponding 3-chloro-piperidines. The reaction does not seem to proceed via free radicals, as a radical cascade cyclisation could not be observed. Therefore not the samarium(II), but
Cyclisation of Unsaturated<i>N</i>-Chloroamines under Acidic Conditions: A Polar Reaction via Chloronium Ions
作者:Richard Göttlich、Michael Noack、Stefanie Kalsow
DOI:10.1055/s-2004-822907
日期:——
Unsaturated N-chloroamines cyclise under acidic conditions without addition of a starter for a radical reaction. Therefore it can be concluded that, under the conditions published to date in the literature, the reaction at least partially proceeds via a polar reaction mechanism rather than via free radicals.