A C2-symmetric nickel diamine complex as an asymmetric catalyst for enecarbamate additions to butane-2,3-dione.
Butane-2,3-dione was activated towards nucleophilic addition of enecarbamates by a series of metal triflate complexes of a C2-symmetric diamine to give stereogenic, aldol-like, t-alcohols, a novel nickel(II) triflate complex was identified as a good catalyst for this asymmetric transformation, and an aquo nickel(II) complex was identified by XRD techniques.
Fossey
John S
JS
Graduate School of Pharmaceutical Sciences, University of Tokyo, Hongo, Tokyo, 113-0033, Japan.
Matsubara
Ryosuke
R
Vital
Paulo
P
Kobayashi
Shū
S