Synthesis 2018; 50(19): 3787-3808
DOI: 10.1055/s-0037-1610210
review
© Georg Thieme Verlag Stuttgart · New York

Haloferrocenes: Syntheses and Selected Reactions

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Publication History

Received: 11 May 2018

Accepted after revision: 11 June 2018

Publication Date:
22 August 2018 (online)


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Abstract

Although haloferrocenes constitute important starting materials for many ferrocene-derived products with importance in a variety of fields such as materials science, medicinal chemistry and catalysis, only relatively few haloferrocenes out of the large number of possible examples have been prepared so far. The first part of this review summarizes the syntheses of all the homo- and heterohaloferrocenes known up to date. The second part summarizes typical reactions of haloferrocenes, namely lithiation followed by trapping with an electrophile, copper-mediated halogen substitution, coupling with formation of diferrocenyl derivatives, ortho-lithiation followed by trapping with an electrophile, palladium-catalyzed coupling reactions and finally miscellaneous reactions.

1 Introduction

2 Homohaloferrocenes

2.1 Fluoroferrocenes

2.2 Chloroferrocenes

2.3 Bromoferrocenes

2.4 Iodoferrocenes

3 Heterohaloferrocenes

4 Selected Reactions of Haloferrocenes

4.1 Lithiation Followed by Trapping with an Electrophile

4.2 Copper-Mediated Halogen Substitution

4.3 Coupling with Formation of Diferrocenyl Derivatives

4.4 ortho-Lithiation of Haloferrocenes

4.5 Palladium-Catalyzed Reactions of Haloferrocenes

4.6 Miscellaneous Reactions of Haloferrocenes

5 Conclusions