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Heterogeneous Allylsilylation of Aromatic and Aliphatic Alkenes Catalyzed by Proton-Exchanged Montmorillonite

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journal contribution
posted on 02.04.2010, 00:00 by Ken Motokura, Shigekazu Matsunaga, Akimitsu Miyaji, Yasuharu Sakamoto, Toshihide Baba
Allylsilylation of an alkene is the only known procedure to install both silyl and allyl groups onto a carbon−carbon double bond directly. Proton-exchanged montmorillonite showed excellent catalytic performances for the allylsilylation of alkenes. For example, the reaction of p-chlorostyrene with allyltrimethylsilane proceeded smoothly to afford the corresponding allylsilylated product in 95% yield. We also attempted to isolate the reaction intermediate on the montmorillonite surface to investigate the reaction mechanism.