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Rasta Resin-PPh3BnCl and its Use in Chromatography-Free Carbonyl Cyanosilylation Reactions

Yan Teng, Patrick H. Toy*

*Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. of China, Email:

Y. Teng, P. H. Toy, Synlett, 2011, 551-554.

DOI: 10.1055/s-0030-1259515


Rasta resin-PPh3BnCl, a heterogeneous polystyrene-based phosphonium salt, catalyzes cyanosilylation reactions of aldehydes and ketones efficiently. In these reactions, rasta resin-PPh3BnCl was separated from the desired reaction product simply by filtration, and it could be reused without significant loss of catalytic activity numerous times.

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Key Words

polymer-supported catalyst, polystyrene, phosphonium salt, organocatalysis, cyanosilylation

ID: J60-Y2011-0460