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ZrOCl2 Catalysed Chemoselective Conversion of Aldehydes to geminal-Diacetates and Their Cleavage: A Mild and Efficient Method

✍ Scribed by Adki NAGARAJ; Cherkupally SANJEEVA REDDY

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
61 KB
Volume
25
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

ZrOCl~2~ was found to be an effective Lewis acid catalyst for the solventless chemoselective conversion of aldehydes into geminal‐diacetates in high yields at room temperature. Regeneration of the aldehydes from the acetals was also achieved using the same catalyst in water. The beneficial effect of microwave irradiation on the reaction was also described. Other advantages are the very low loading of catalyst, high yields achieved even on a gram scale, and considerably shortened reaction time compared to the conventional method.

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