Preparation of enantiomerically pure derivatives of (3-amino-1,2-dicarba-closo-dodecaboran-1-yl)acetic acid
作者:Dmitry A. Gruzdev、Veronika O. Ustinova、Evgeny N. Chulakov、Valentina A. Ol'shevskaya、Pavel A. Slepukhin、Galina L. Levit、Victor P. Krasnov、Valery N. Charushin
DOI:10.1016/j.jorganchem.2018.08.018
日期:2018.12
enantiomerically pure N- and C-protected derivatives of planar-chiral (3-amino-1,2-dicarba-closo-dodecaboran-1-yl)acetic acid (>99% ee) have first been obtained in good yields via a combination of HPLC separation and synthetic procedures. Assignment of absolute configuration of the carborane fragments has been made based on the X-ray diffraction data of diastereoisomeric derivatives of (S)-amino acids