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Issue 2, 2011
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An eco-sustainable erbium(III)-catalyzed method for formation/cleavage of O-tert-butoxy carbonates

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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 in ethanol under microwave irradiation. Therefore, the entire protection/de-protection process is very attractive, from the point of view of sustainability.

Graphical abstract: An eco-sustainable erbium(iii)-catalyzed method for formation/cleavage of O-tert-butoxy carbonates

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Publication details

The article was received on 25 Oct 2010, accepted on 02 Dec 2010 and first published on 11 Jan 2011


Article type: Paper
DOI: 10.1039/C0GC00728E
Citation: Green Chem., 2011,13, 436-443
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    An eco-sustainable erbium(III)-catalyzed method for formation/cleavage of O-tert-butoxy carbonates

    A. Procopio, G. Cravotto, M. Oliverio, P. Costanzo, M. Nardi and R. Paonessa, Green Chem., 2011, 13, 436
    DOI: 10.1039/C0GC00728E

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