Abstract

Ga(OTf)3 efficiently catalyses the nucleophilic substitution of the hydroxyl group of propargyl alcohols with enoxysilanes to aid in CC bond formation. The reactions can be performed in an undried solvent under air to obtain the desired products quickly in good yields. Other nucleophiles, such as indole, phenol, and furan are also suitable for this transformation. The use of inexpensive and readily available catalysts makes this method simple, convenient, and practical.

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