Synthesis 2018; 50(18): 3615-3633
DOI: 10.1055/s-0036-1591953
short review
© Georg Thieme Verlag Stuttgart · New York

In Situ ‘Trans-Metal Trapping’: An Efficient Way to Extend the Scope of Aromatic Deprotometalation

Nahida Mokhtari Brikci-Nigassa
a   Laboratoire de Synthèse Organique Appliquée, Faculté des Sciences Exactes et Appliquées, Université d’Oran 1 Ahmed Ben Bella, BP 1524 El M’Naouer, 31000 Oran, Algeria
b   Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France   Email: william.erb@univ-rennes1.fr   Email: florence.mongin@univ-rennes1.fr
,
Ghenia Bentabed-Ababsa
a   Laboratoire de Synthèse Organique Appliquée, Faculté des Sciences Exactes et Appliquées, Université d’Oran 1 Ahmed Ben Bella, BP 1524 El M’Naouer, 31000 Oran, Algeria
,
William Erb*
b   Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France   Email: william.erb@univ-rennes1.fr   Email: florence.mongin@univ-rennes1.fr
,
Florence Mongin*
b   Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France   Email: william.erb@univ-rennes1.fr   Email: florence.mongin@univ-rennes1.fr
› Author Affiliations

Université de Rennes 1; Ministère de l’Enseignement supérieur et de la Recherche scientifique Algérien; Centre National de la Recherche Scientifique (PICS SYNAROM)
Further Information

Publication History

Received: 05 February 2018

Accepted: 12 February 2018

Publication Date:
08 March 2018 (online)


Published as part of the Special Section on the Main Group Metal Chemistry Symposium

Abstract

Deprotometalation is an efficient method to functionalize regioselectively aromatic compounds including heterocycles. This short review shows how it is possible to intercept aryllithiums (and other polar arylmetals) as soon as they are formed by in situ ‘trans-metal trapping’. The approach avoids long contact between aryllithiums and sensitive substrates. In addition, it allows less activated substrates to be deprotonated by non-nucleophilic lithium amides. While using chloro­silanes and borates still arouses the interest of chemists, more recently, methods based on zinc, aluminum and gallium have appeared, enabling this chemistry to grow dramatically.

1 Introduction

2 Silicon-Based In Situ Traps

3 Boron-Based In Situ Traps

4 Zinc-Based In Situ Traps

5 Aluminum- and Gallium-Based In Situ Traps

6 Other In Situ Traps

7 Continuous-Flow In Situ ‘Trans-Metal Trapping’

8 Conclusion