Tetrahedron letters

A convenient and highly efficient method for the protection of aldehydes using very low loading hydrous ruthenium (III) trichloride as catalyst

JY Qi, JX Ji, CH Yueng, HL Kwong, ASC Chan

Index: Qi, Jian-Ying; Ji, Jian-Xin; Yueng, Chi-Hung; Kwong, Hoi-Lun; Chan, Albert S.C. Tetrahedron Letters, 2004 , vol. 45, # 41 p. 7719 - 7721

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Citation Number: 22

Abstract

A convenient method for the chemoselective protections of both aliphatic and aromatic aldehydes has been developed. Ruthenium (III) trichloride (0.1 mol%) has found to be an highly efficient catalyst in the acetalizations of aldehydes with various simple alcohols such as methanol, ethanol, or diols such as 1, 2-ethylanediol and 1, 3-propanediol under mild reaction conditions.