Synthesis of planar-chiral cobalticinium complexes

Article abstract of DOI:10.1016/0022-328X(95)05492-8

Planar-chiral cobalticinium complexes having a carboxylic function were synthesized in an enantiomerically pure form and transformed into several derivatives such as amide, ester and alcohol.The molecular structure including absolute configuration of 8b was established by a single-crystal X-ray structure analysis.Based on the configuration of the (-)-menthyl group, the absolute configuration of 8b around the Cp-M moiety was determined to be R.Keywords: Cobalt; Cyclopentadienyl; Optical resolution; X-ray diffraction; Chirality