An Efficient Method for Chemoselective Thioacetalization of Aldehydes in the Presence of a Catalytic Amount of Acidic Ionic Liquid under Solvent-Free Conditions
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DOI: 10.1055/s-0029-1217550
Abstract
A water-stable Brønsted acidic ionic liquid with an
alkane sulfonic acid group was synthesized. This ionic liquid catalyzed
the thioacetalization reaction smoothly to afford 1,3-dithianes in
excellent yield and less time. In this article we describe a mild
and chemoselective thioacetalization procedure for the protection
of various aldehydes in the presence of catalytic amount of ionic
liquid (2 mol%).
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© Georg Thieme Verlag Stuttgart ˙ New York
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