Synlett 2002(7): 1019-1042
DOI: 10.1055/s-2002-32572
ACCOUNT
© Georg Thieme Verlag Stuttgart · New York

Oligocyclopentadienyl Transition Metal Complexes

Cristina G. de Azevedo*, K. Peter C. Vollhardt*
Center for New Directions in Organic Synthesis, Department of Chemistry, University of California at Berkeley and the Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, USA
Fax: 510 643 5208; e-Mail: vollhard@cchem.berkeley.edu;
Further Information

Publication History

Received 4 October 2001
Publication Date:
07 February 2007 (online)

Abstract

Synthesis, characterization, and reactivity studies of olig­ocyclopentadienyl transition metal complexes, namely those of fulvalene, tercyclopentadienyl, quatercyclopentadienyl, and pentacyclopentadienyl(cyclopentadienyl) are the subject of this account. Thermal-, photo-, and redox chemistries of homo- and heteropolynuclear complexes are described.

1 Introduction

2 Fulvalene Complexes

2.1 Homodinuclear Fulvalene Metal Carbonyls

2.1.1 Synthesis and Structural Characterization

2.1.2 Reactivity

2.1.3 Conclusions

2.2 Heterodinuclear Fulvalene Metal Complexes

2.2.1 Synthesis

2.2.2 Reactivity

2.2.3 Conclusions

3 Tercyclopentadienyl Metal Complexes

3.1 Synthesis and Structural Characterization

3.2 Reactivity

3.2.1 Anionic Charge Transfer

3.2.2 Radical Electron Transfer

3.2.3 Methyl Transfer

3.2.4 Some Tantalizing Photochemical Experiments

3.2.5 Conclusions

4 Quatercyclopentadienyl Metal Complexes

5 Penta(cyclopentadienyl)cyclopentadienyl Metal
Complexes

5.1 Synthesis and Structural Characterization

5.2 Reactivity

5.3 Conclusions

6 Outlook

1

Permanent address: Centro de Química Estrutural Instituto Superior Técnico Av. Rovisco Pais, 1049-001 Lisbon, Portugal. E-mail: cristina.azevedo@ist.utl.pt

49

Tolman, W. B.; Vollhardt, K. P. C. unpublished results.

50

Kahn, A. P.; Vollhardt, K. P. C. unpublished results.

64

Baryza, J.; Cammack, J. K.; Gooßen, L. J.; Myrabo, R. L.; Vollhardt, K. P. C. unpublished results.