Allylation of Alkyl Esters, Ethers, and Alcohols

Allylsilanes are available for Lewis acid-promoted allylation of reactive alkyl electrophiles such as allyl halides and esters. 6 Recently, much attention has been focused on catalytic allylation of alkyl esters, ethers, and alcohols with allylsilanes.217-221 

B(C6Fs)3 works as an effective catalyst for the allylation of propargylic esters.217 Allyl and propargyl trimethylsilyl ethers bearing a 7r-electron-donating group at the a-position are smoothly allylated at the a- or 7-position under catalysis by McjSiOTf.218 Chiral titanium catalyst 29 enables highly enantioselective allylation of racemic benzyl trimethylsilyl ethers by a dynamic kinetic resolution (Equation (57)).219 

A rhenium catalyst is quite valuable for the direct allylation of cr-aryl-substituted propargyl alcohols with 10 (Equation (58)).220 Benzyl alcohols are efficiently allylated with allylchlorodimethylsilane under catalysis by InCl3.221 

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