The products corresponding to the reactions of arenes and γ-carbonyl cations may be
obtained by a one-pot, bicatalytic process involving InCl3-catalyzed arene allylation and cross metathesis with electron-deficient alkenes.
The process is successful with electronically neutral and electron-rich arenes, and
modestly Lewis basic donor groups are tolerated with an increase in InCl3 loading from 10 mol% to 15 mol%, and in one case, 20 mol%.
Key words
allylation - electrophilic aromatic substitution - indium - metathesis - umpolung