Chemoselective Dithioacetalization and oxathioacetalization of carbonyl compounds using alumina sulfuric acid as catalyst

…, A Hosseinian, M Ghashang

Index: Shaterian, Hamid Reza; Hosseinian, Asghar; Ghashang, Majid Synthetic Communications, 2008 , vol. 38, # 23 p. 4097 - 4106

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Citation Number: 20

Abstract

Abstract Carbonyl compounds have been successfully converted into their corresponding dithiolane, dithiane, and oxathiolane derivatives using a catalytic amount of alumina sulfuric acid (Al2O3–SO3H) with excellent yields at room temperature in short reaction times under mild conditions. This simple method is a highly chemoselective procedure for protection of aldehydes in the presence of ketones, and the heterogeneous catalyst can be recovered ...