Abstract
The 1H and 13C NMR spectra of 2,4,6,8-tetraaryl-3,7-diazabicyclo[3.3.1]nonan-9-ones were measured at 360 and 90 MHz, respectively. The chemical shifts were assigned unambiguously using one- and two-dimensional NMR spectroscopic data and nuclear Overhauser enhancement studies. These results clearly indicate a chair–boat conformation for these compounds with (i) all aryl groups orientated equatorially and (ii) the aryl groups of the boat lying in the shielding zone of the aryl groups of the chair. Literature assignments of carbon chemical shifts were also revised. Copyright © 2000 John Wiley & Sons, Ltd.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
