Synlett 2016; 27(12): 1760-1764
DOI: 10.1055/s-0035-1561639
synpacts
© Georg Thieme Verlag Stuttgart · New York

Catalytic Selective Deoxygenation of Polyols Using the B(C6F5)3/Silane System

Nikolaos Drosos
Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany   eMail: morandi@kofo.mpg.de
,
Erhan Ozkal
Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany   eMail: morandi@kofo.mpg.de
,
Bill Morandi*
Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany   eMail: morandi@kofo.mpg.de
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Publikationsverlauf

Received: 30. März 2016

Accepted after revision: 13. April 2016

Publikationsdatum:
08. Juni 2016 (online)


Dedicated to Prof. Erick M. Carreira

Abstract

The selective deoxygenation of polyols is an important frontier in our ability to transform biomass-derived compounds and other synthetic intermediates. In this Synpacts article, recent approaches using a B(C6F5)3/silane combination to site-selectively deoxygenate polyols are highlighted. First, the work of Gagné and coworkers is discussed. They developed a partial, selective deoxygenation of biologically sourced polyols proceeding through an elegant example of anchimeric assistance. In the second part, we present our recent work describing a catalytic deoxygenation of terminal diols with selectivity for the cleavage of the primary hydroxyl group. This transformation was enabled by the strategic formation of a cyclic siloxane intermediate.

1 Introduction

2 Background

3 Selective Deoxygenation of Carbohydrates

4 Selective Deoxygenation of Terminal Diols at the Primary Position

5 Conclusion