A Sequential Palladium-Catalyzed Alder-Ene-Reductive Amination Reaction
摘要:
Alkyne allyl alcohols are readily transformed into beta-amino ethyl alkylidene tetrahydrofurans or beta-amino ethyl alkylidene pyrrolidines in a Pd-catalyzed cycloisomerization-reductive amination sequence with remarkable chemoselectivity leaving benzyl groups and trisubstituted double bonds intact.
A Sequential Palladium-Catalyzed Alder-Ene-Reductive Amination Reaction
作者:Christoph J. Kressierer、Thomas J. J. Müller
DOI:10.1021/ol050674k
日期:2005.5.1
Alkyne allyl alcohols are readily transformed into beta-amino ethyl alkylidene tetrahydrofurans or beta-amino ethyl alkylidene pyrrolidines in a Pd-catalyzed cycloisomerization-reductive amination sequence with remarkable chemoselectivity leaving benzyl groups and trisubstituted double bonds intact.
作者:Connor Yap、Gabriel M. J. Lenagh-Snow、Somnath Narayan Karad、William Lewis、Louis J. Diorazio、Hon Wai Lam
DOI:10.1002/anie.201703380
日期:2017.7.3
Enantioselective nickel-catalyzed arylative cyclizations of substrates containing a Z-allylic phosphate tethered to an alkyne are described. These reactions give multisubstituted chiral aza- and carbocycles, and are initiated by the addition of an arylboronic acid to the alkyne, followed by cyclization of the resulting alkenylnickel species onto the allylic phosphate. The reversible E/Z isomerization