Synlett

Deprotection of Acetals and Silyl Ethers Using a Polymer-Supported π-Acid Catalyst: Chemoselectivity and Polymer Effect

N Tanaka, Y Masaki

Index: Tanaka, Nobuyuki; Masaki, Yukio Synlett, 1999 ,  # 12  p. 1960 - 1962

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Citation Number: 4

Abstract

Abstract: A polymeric dicyanoketene acetal (DCKA), prepared from a styrene monomer bearing dicyanoketene acetal functionality, was found to be an effective and recyclable catalyst in the chemoselective deprotection of acetals and silyl ethers. A remarkable acceleration accountable for the polymer effect was observed. Key words: polymeric p-acid catalyst, chemoselective deprotection, acetal, silyl ether, polymer effect