Sv. Suprunovich et al., BICYMANTRENYL CHEMISTRY .4. RESOLUTION TO ENANTIOMERS AND DETERMINATION OF THE ABSOLUTE-CONFIGURATION OF BICYMANTRENYLCARBALDEHYDES, Russian chemical bulletin, 46(1), 1997, pp. 154-158
Planar chiral 2- and 3-bicymantrenylcarbaldehydes can be resolved to e
nantiomers through Schiff's bases with (S)-(-)-alpha-phenylethylamine.
Optically active derivatives of bicymantrenyl with Me and CH2OH subst
ituents were synthesized from (-)-3-bicymantrenylcarbaldehyde. The abs
olute configuration. of Schiff's base obtained from (+)-3-bicymantreny
lcarbaldehyde was determined by X-ray diffraction analysis.