PAPER	Synthesis 2004: 2837-2840   DOI: 10.1055/s-2004-834858
© Georg Thieme Verlag Stuttgart · New York
Pr(OTf)3 as an Efficient and Recyclable Catalyst for Chemoselective Thioacetalization of Aldehydes
Surya Kanta De*
Department of Chemistry, University of Washington, Seattle, WA 98195, USA Fax: +1(765)4941414; e-Mail: skd125@yahoo.com;
Received 13 May 2004

Abstract

Praseodymium triflate has been found to be an efficient and recyclable catalyst for chemoselective protection of aldehydes.

Key words

praseodymium triflate - aldehydes - 1,3-dithiolanes - 1,3-oxathiolanes - 1,3-dithianes - dithioacetals