Synthesis 2024; 56(07): 1070-1096
DOI: 10.1055/a-2223-1303
short review
Emerging Trends in Glycoscience

Recent Advances on the Synthesis of C-Glycosides from 1,2-Glycals

Ramanand Das
a   Department of Chemistry, National Institute of Technology Sikkim, Ravangla, PIN 737139, India
,
Malati Das
a   Department of Chemistry, National Institute of Technology Sikkim, Ravangla, PIN 737139, India
,
Debaraj Mukherjee
b   Department of Chemical Sciences, Bose Institute, Kolkata, PIN 700091, India
,
Taraknath Kundu
a   Department of Chemistry, National Institute of Technology Sikkim, Ravangla, PIN 737139, India
› Author Affiliations
T.K. gratefully acknowledges the Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Government of India, for grants received under project number SB/S1/OC-26/2014. The National Institute of Technology (NIT) Sikkim is acknowledged for providing fellowships to R.D. and M.D.


Abstract

The development of stereoselective synthetic routes for C-glycosides has attracted immense attention from carbohydrate chemists over the last two decades. In this short review, progress made over the last decade towards the synthesis of C-glycosides using glycals as precursors is discussed. Glycals have been extensively manipulated to generate oxocarbenium cations or glycosyl anions for the formation of C–C bonds at the anomeric position through attack of C-nucleophiles or via transition-metal-catalyzed coupling reactions. Recent reports on carbon-Ferrier, intramolecular Cope, and Claisen rearrangements, along with various coupling reactions in the presence or absence of directing groups are evaluated herein. Contemporary applications of these reactions in the syntheses of natural products, drugs and scaffolds with bioactive potential are briefly discussed.

1 Introduction

2 Rearrangement Reactions

2.1 Carbon-Ferrier Rearrangement

2.2 Other Rearrangement Reactions

3 C1 Coupling

4 Annulations

5 Addition Reactions

6 Natural Product Synthesis

7 Conclusion



Publication History

Received: 30 August 2023

Accepted after revision: 05 December 2023

Accepted Manuscript online:
05 December 2023

Article published online:
23 January 2024

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