Publication details

Free Bases of Benzophenanthridine Alkaloids - a Combined NMR, X-Ray and Theoretical Study

Authors

SEČKÁŘOVÁ Pavlína TOUŠEK Jaromír DOMMISSE Roger DOSTÁL Jiří MAREK Radek

Year of publication 2001
Type Article in Proceedings
Conference 42nd Experimental NMR conference
MU Faculty or unit

Faculty of Science

Citation
web http://www.enc-conference.org/
Field Physical chemistry and theoretical chemistry
Keywords Benzophenanthridine Alkaloids; NMR; X-Ray
Description We were able now to demonstrate that the pseudobases (6-hydroxyderivatives) are the only products of alkalization of the QBA in DMSO-d6 solution using sodium carbonate. In less-polar environment the pseudobases are further converted into bimolecular aminoacetals, which exist in two diastereomeric forms. The detailed configurational and conformational analysis of bimolecular aminoacetals, based on NMR measurements, quantum chemical calculations, and X-ray analysis was presented.
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