Versatile and Fluoride-Free Cyanation of Alkyl Halides and Sulfonates with Trimethylsilyl Cyanide

Abstract
Cyanation of biphenyl-4-ylmethyl methanesulfonate with trimethylsilyl cyanide using fluoride-free inorganic salts, such as Cs2CO3, K2CO3, and LiOH˙H2O, as additives in MeCN quantitatively gave biphenyl-4-ylacetonitrile. This methodology was applied to various alkyl halides to give the corresponding nitrile compounds in good to excellent yields. Of note, 4-(hydroxymethyl)benzyliodide O-protected by the silyl group was converted into phenylacetonitrile derivative in 99% yield without desilylation.