129189-51-1Relevant articles and documents
Synthesis of Chiral Square Planar Cobalt(III) Complexes and Catalytic Asymmetric Epoxidations with these Complexes
Ozaki, Shigeko,Mimura, Hisashi,Yasuhara, Naoko,Masui, Masaichiro,Yamagata, Yuriko,et al.
, p. 353 - 360 (2007/10/02)
The chiral square planar cobalt(III) complexes, Na4-(R)-HMBA-DMP)> (2), -2,4-dimethylpentan-3-one> and complexes with two or four chiral centres, Co2L> have been prepared and characterized by 1H NMR spectroscopy, solution magnetic properties, and X-ray crystallography.Asymmetric epoxidations of styrenes with these chiral cobalt(III) complexes and iodosylbenzene have been investigated.Various substituted styrenes were epoxidized with chemical yields of (25-86percent) and enantiomeric excess between 0 and 17percent.