Synlett 2017; 28(07): 751-761
DOI: 10.1055/s-0036-1588945
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© Georg Thieme Verlag Stuttgart · New York

O-Glycosylation Enabled by Remote Activation

Mark L. Spell
,
Kristina Deveaux
,
Caitlin G. Bresnahan
,
Justin R. Ragains*
Weitere Informationen

Publikationsverlauf

Received: 09. Dezember 2016

Accepted after revision: 11. Januar 2017

Publikationsdatum:
16. Februar 2017 (online)


Abstract

O-Glycosylation is a critically important and recurring step in the synthesis of oligosaccharides and other natural and non-natural products. While many approaches to O-glycosylation have been reported, those strategies involving remote activation are distinguished by the mildness and orthogonality that they often engender. As a result, O-glycosylation using remote activation strategies has been utilized successfully in the synthesis of complex molecules that include oligosaccharides and macrolides. Herein, we discuss a number of contributions that have been made to this area since the 1970s. This includes our own recent contribution involving the visible-light activation of 4-p-methoxyphenyl-3-butenylthioglycosides toward O-glycosylation in the presence of Umemoto’s reagent.

1 Introduction

2 Fraser-Reid’s Development of n-Pentenylglycosides as Glycosyl Donors

3 Hanessian’s Remote Activation of 2-Pyridylthioglycosides

4 Gold-Catalyzed O-Glycosylation (Hotha and Yu)

5 Wan’s ‘Interrupted Pummerer’ Approach to O-Glycosylation

6 O-Glycosylation with 4-p-Methoxyphenyl-3-butenylthioglycosides

7 Conclusions