Facile dichloromethane activation and phosphine methylation. Isolation of unprecedented zwitterionic organozinc and organocobalt intermediates.
Both C-Cl bonds of CH(2)Cl(2) are readily activated by CoCl(2) and metallic Zn allowing quantitative methylation of phosphines; unprecedented zwitterionic Co(ii) and Zn(ii) intermediates have been characterized which display alpha-metallated phosphoniums.
Pattacini
Roberto
R
Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université Louis Pasteur, 4 rue Blaise Pascal, 67070 Strasbourg Cedex, France.
Jie
Suyun
S
Braunstein
Pierre
P