Gold(I)-Catalyzed Addition of Carboxylic Acids to Alkynes
作者:Bathoju Chandra Chary、Sunggak Kim
DOI:10.1021/jo101543q
日期:2010.11.19
Au(I)-catalyzed hydroacyloxylation of alkynes with carboxylic acids is described PPh3AuCl/AgPF6 catalyst affords the Markonikov addition products, whereas PPh3AuCl/AgOTf catalyst gives the more stable isomerized products via the Markonikov products
Trifluoromethanesulfonic Acid Catalyzed Isomerization of Kinetic Enol Derivatives to the Thermodynamically Favored Isomers
作者:Phil Ho Lee、Dongjin Kang、Subin Choi、Sunggak Kim
DOI:10.1021/ol2012132
日期:2011.7.1
Trifluoromethanesulfonic acid catalyzed isomerization of kineticenol derivatives to the thermodynamicallyfavoredisomers was developed. Under the present conditions, kineticenolphosphates, enol acetates and benzoates, and enol sulfonates were smoothly isomerized to produce the corresponding thermodynamicallyfavoredisomers in good to excellent yields.