Catalytic Asymmetric Synthesis of Substituted Morpholines and Piperazines
作者:Huimin Zhai、Andrey Borzenko、Ying Yin Lau、Shin Hye Ahn、Laurel L. Schafer
DOI:10.1002/anie.201206826
日期:2012.12.3
Under two conditions: Hydroamination catalyzed by group 4 metals is featured in the modular and enantioselective synthesis of 3‐substitutedmorpholines and the diastereoselective synthesis of 2,5‐substitutedpiperazines.
Ruthenium-Catalyzed Hydroamination of Aminoallenes: an Approach to Vinyl Substituted Heterocycles
作者:Gianluigi Broggini、Giovanni Poli、Egle M. Beccalli、Filippo Brusa、Silvia Gazzola、Julie Oble
DOI:10.1002/adsc.201400776
日期:2015.3.9
Heterosubstituted aminoallenes underwent smooth ruthenium‐catalyzed intramolecular exo‐hydroamination reactions yielding the corresponding five‐, six‐, or seven‐membered 1,3‐diaza‐ or 1,3‐oxaza‐heterocyclic structures. This procedure is a valuable and less expensive alternative to the already known transition metal‐catalyzed hydroamination reactions of aminoallenes.