Reduction of Cp2ZrCl2 with mischmetall: a new method for generating an efficient "Cp2Zr" equivalent.
[reaction: see text] A "Cp(2)Zr" equivalent is generated under mild conditions (THF, room temperature) by reducing Cp(2)ZrCl(2) with cheap and readily available mischmetall (an alloy of Ce, La, Nd, and Pr). Coupling reactions, including those of terminal alkynes, can efficiently be achieved by using this reagent.
Denhez
Clément
C
Réactions Sélectives et Applications, CNRS (UMR 6519) and Université de Reims, France.
Médégan
Sédami
S
Hélion
Florence
F
Namy
Jean-Louis
JL
Vasse
Jean-Luc
JL
Szymoniak
Jan
J