Synthesis 2021; 53(24): 4567-4587
DOI: 10.1055/a-1577-5864
short review

Advances in [1,2]-Sigmatropic Rearrangements of Onium Ylides via Carbene Transfer Reactions

Claire Empel
,
Sripati Jana
,
R.M.K. thanks the Deutsche Forschungsgemeinschaft (German Research Foundation) for financial support. C.E. acknowledges the Fonds der Chemischen Industrie e.V. for a Kekulé scholarship.


Abstract

This review article summarizes progress made on [1,2]-sigmatropic rearrangements using carbenes in the ylide formation step. While other rearrangements, such as the [2,3]-sigmatropic, Doyle–Kirmse, or Sommelet–Hauser rearrangements, have been studied in detail over the past decades, investigations on [1,2]-sigmatropic rearrangements are still limited. Based on the application of diazoalkanes as carbene precursors, research on diazoalkanes in ylide formation reactions started flourishing in the 1990s. This Short Review covers milestones from the advent of [1,2]-sigmatropic rearrangements using carbenes to generate ammonium, oxonium and other ylide species, and should serve as an overview to further promote research in this area.

1 Introduction

2 Ammonium Ylides

3 Oxonium Ylides

4 Sulfonium and Selenium Ylides

5 Halonium Ylides

6 Conclusion and Outlook



Publication History

Received: 08 May 2021

Accepted after revision: 03 August 2021

Accepted Manuscript online:
03 August 2021

Article published online:
29 October 2021

© 2021. Thieme. All rights reserved

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany