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Issue 5, 2015
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Regio- and stereoselective synthesis of α-hydroxy-β-azido tetrazoles

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Abstract

Unreported α-hydroxy-β-azido tetrazoles were prepared in one step from readily available α,β-epoxy nitriles. This reaction involves a dibutyltin oxide-catalyzed cycloaddition of the nitrile reacting with TMSN3 leading to the tetrazole moiety, and opening of the epoxide by the azide anion. High levels of regio- and stereoselectivity are obtained in this reaction and are discussed, also by means of quantum mechanical DFT calculations. The azido group in these compounds could be uneventfully reduced to the corresponding amine thus leading to an α-hydroxy-β-amino tetrazole, surrogate of the corresponding carboxylic acid, while reaction with triphenylphosphine led to propargylic amines.

Graphical abstract: Regio- and stereoselective synthesis of α-hydroxy-β-azido tetrazoles

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Publication details

The article was received on 23 Dec 2014, accepted on 12 Mar 2015 and first published on 16 Mar 2015


Article type: Research Article
DOI: 10.1039/C4QO00345D
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Org. Chem. Front., 2015,2, 492-496
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    Regio- and stereoselective synthesis of α-hydroxy-β-azido tetrazoles

    P. Quinodoz, C. Lo, M. Kletskii, O. Burov, J. Marrot and F. Couty, Org. Chem. Front., 2015, 2, 492
    DOI: 10.1039/C4QO00345D

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