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Yttrium triflate as an efficient and useful catalyst for chemoselective protection of carbonyl compounds

Surya Kanta De*

*Department of Chemistry, University of Washington, Seattle, WA 98195, USA, Email:

S. K. De, Tetrahedron Lett., 2004, 45, 2339-3241.

DOI: 10.1016/j.tetlet.2004.01.106


Carbonyl compounds have been successfully converted into their corresponding oxathiolane, dithiolane, and dithiane derivatives with 2-mercaptoethanol, 1,2-ethanedithiol, and 1,3-propanedithiol using a catalytic amount of yttrium triflate. In addition, by using this catalyst, highly chemoselective protection of aldehydes has been achieved.

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Pr(OTf)3 as an Efficient and Recyclable Catalyst for Chemoselective Thioacetalization of Aldehydes

S. K. De, Synthesis, 2004, 2837-2840.

Key Words

Dithianes, Oxathioacetals

ID: J72-Y2004-470