Chiral 1,1'-Diphosphetanylferrocenes: New Ligands for Asymmetric Catalytic Hydrogenation of Itaconate Derivatives We would like to thank Dr. Daniela Herzberg for developing the procedure employing LDA as a base in the preparation of FerroTANE ligands. We also gratefully acknowledge analytical support of Catherine Rippe and Colin Dewar of Chirotech Technology Ltd.
Chirotech Technology Ltd. Cambridge Science Park Milton Road, Cambridge CB4 0WG (UK).
U
Berens
MJ
Burk
A
Gerlach
W
Hems