An Eco-Sustainable Erbium (III) Triflate Catalyzed Formation and Cleavage of tert-Butyl Ethers

A Procopio, P Costanzo, M Curini, M Nardi…

Index: Procopio, Antonio; Costanzo, Paola; Curini, Massimo; Nardi, Monica; Oliverio, Manuela; Paonessa, Rosina Synthesis, 2011 , # 1 p. 73 - 78

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Citation Number: 8

Abstract

Abstract An eco-compatible method, which permits the formation or cleavage of tert-butyl ethers of alcohols and phenols, is proposed. The protection step is performed in solvent-free conditions at room temperature using catalytic amount of Er (OTf) 3. The catalyst is easily recovered from the aqueous phase and reused several times without significant loss of activity. The deprotection step developed is also highly eco-friendly since the tert-butyl ...