Synthesis

Diiodosilane. 4. Direct Reduction of Ketals and Acetals in the Presence of Unprotected Carbonyls. A Case of Inverted Chemoselectivity

E Keinan, M Sahai, R Shvily

Index: Keinan; Sahai; Shvily Synthesis, 1991 , # 8 p. 641 - 643

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Citation Number: 6

Abstract

Ketals and acetals are selectively reduced by diiodosilane to iodoal-kanes in preference to ketones and aldehydes. This inversion of the normal order of reactivity of the “protected” and “unprotected" carbonyls allows partial reduction of polycarbonyl compounds with unusual

~92%

~78%

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