Reaction of alkyne allyl alcohols tethered with N-(p-tolylsulfonamide) in the presence of a cationic gold(I) catalyst gave new cycloisomerization products, 4-oxa-6-azatricyclo[3.3.0.02,8]octanes.
Platinum-Catalyzed Transformation of Alkyne Allyl Alcohols and Sulfonamides into Heterotricyclo[3.3.1.02,8]nonanes
作者:Young Chung、So Sim、Youjung Park
DOI:10.1055/s-0031-1290314
日期:2012.2
Platinum chloride catalyzed cycloisomerization of alkyne allyl alcohols and alkyne allyl sulfonamides gave new cycloisomerization products, diaza-, azaoxa-, and dioxatricyclo-[3.3.1.0²,8]nonanes, in reasonable to high yields.
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