Scandium triflate-catalyzed intramolecular Friedel–Crafts acylation with Meldrum's acids: insight into the mechanism
作者:Eric Fillion、Dan Fishlock
DOI:10.1016/j.tet.2009.05.058
日期:2009.8
Friedel–Crafts acylation of arenes with Meldrum'sacid derivatives catalyzed by Sc(OTf)3 was reported as a mild and general entry into functionalized 1-indanones. Mechanistic investigations were undertaken to determine the rate-determining step in the acylation sequence using Meldrum'sacid, as well as to examine the role of the Lewis acid catalyst. Enolizable Meldrum'sacid derivatives react via an acyl ketene
Convenient Access to Polysubstituted 1-Indanones by Sc(OTf)<sub>3</sub>-Catalyzed Intramolecular Friedel−Crafts Acylation of Benzyl Meldrum's Acid Derivatives
作者:Eric Fillion、Dan Fishlock
DOI:10.1021/ol035817m
日期:2003.11.1
The intramolecular Friedel-Crafts acylation of benzyl Meldrum's acids is catalyzed by Sc(OTf)(3) under mild reaction conditions. Several polysubstituted 1-indanones have been prepared.