A computational insight into cyclopropenone activated dehydration reaction of alcohols

Nucleophilic Substitutions of Alcohols in High Levels of Catalytic Efficiency

“…Nevertheless, the superior catalytic efficiency of cyclopropenones was demonstrated by a comparison reaction with FPyr, which did not furnish the product 2 13 at all. In alignment to Lambert’s and our previous work, a mechanism is proposed in Scheme A . Initially, cyclopropenone DEC is expected to be acylated with either BzCl or AcCl to furnish the charged intermediate I .…”