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A facile and efficient ZrCl 4 catalyzed conversion of aldehydes to geminal-diacetates and dipivalates and their cleavage

2003; Elsevier BV; Volume: 59; Issue: 48 Linguagem: Inglês

10.1016/j.tet.2003.10.002

1464-5416

G. Smitha, Ch. Sanjeeva Reddy,

Chemical Synthesis and Analysis

A novel, mild and efficient method has been developed for the preparation of geminal-diacetates and dipivalates in high yields through a reaction of aldehydes with acetic anhydride or pivalic anhydride using Zirconium (IV) chloride as a catalyst under solvent free conditions. Regeneration of aldehydes from the acylals was also achieved using the same catalyst in CH3OH.