Abstract
The radical anion of 1,4-naphthoquinone has been prepared by alkali-metal reduction, employing Li, Na, K and Cs, in 1,2-dimethoxyethane in the presence of 18-crown-6, 15-crown-5 and 12-crown-4. Linewidth alternation is observed in the e.s.r. spectra of some of these systems owing to intramolecular cation migration between equivalent sites adjacent to the two carbonyl groups. In some systems a species is observed with a much narrower spectrum than that observed in the absence of a crown ether. Remarkably, it is apparent that the crown ethers do not appear to show great specificity towards the counterions which match the size of their cavities.
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 callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Disclaimer: 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.
