1040455-23-9Relevant academic research and scientific papers
Synthesis, resolution, and absolute configuration of difunctionalized Troeger's base derivatives
Kiehne, Ulf,Bruhn, Torsten,Schnakenburg, Gregor,Froehlich, Roland,Bringmann, Gerhard,Luetzen, Arne
experimental part, p. 4246 - 4255 (2009/05/08)
Two racemic derivatives of Troeger's base, the 2,8-diboronic acid ester 6 and the 3,9-dibromo-substituted derivative 5, were synthesized and successfully resolved by HPLC on a chiral stationary Whelk-01 phase on a semipreparative scale, thereby giving rise to both enantiomers in a pure form. These functionalized C2symmetric building blocks are valuable precursors for a variety of further applications. Their absolute configurations were determined by comparison of their quantum chemically calculated CD and UV/Vis spectra with the experimental ones and were independently confirmed by X-ray diffraction analysis.
