An eco-sustainable erbium (III)-catalyzed method for formation/cleavage of O-tert-butoxy carbonates

A Procopio, G Cravotto, M Oliverio, P Costanzo…

Index: Procopio, Antonio; Cravotto, Giancarlo; Oliverio, Manuela; Costanzo, Paola; Nardi, Monica; Paonessa, Rosina Green Chemistry, 2011 , vol. 13, # 2 p. 436 - 443

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Citation Number: 12

Abstract

A new simple and effective method for the formation/cleavage of O-tert-butoxy carbonates of alcohols and phenols is proposed. Mesoporous silica-supported Er (III)(ErIII-MCM-41) was used as an efficient and reusable solid catalyst in the solvent-free ultrasound-assisted synthesis of Boc-carbonate derivatives of a wide range of alcohols and phenols. The fast, selective deprotection of Boc-derivatives is achieved with a very low amount of Er (OTf) 3 ...