Abstract The indium (III) chloride/chlorotrimethylsilane system acts as a catalyst for the Sakurai− Hosomi reaction between allylsilanes and aldehydes. When γ-substituted allylsilanes such as crotylsilane and prenylsilane are used a high regioselectivity for γ- addition is observed. Smaller amounts of the catalyst (5 mol%) effectively afforded the allylation products, although larger amounts (20 mol%) gave no product whatsoever. ...
