Abstract
The configurations of 6-methoxyaurone epoxides were determined by direct epoxidation of the parent aurones (1) and (2) by m-chloroperbenzoic acid. trans-6-Methoxyaurone epoxide (3) was also synthesised indirectly through the intermediacy of the reduced ketone derivatives (4) and (5) of aurone (1) and aurone epoxide (3). m-Chloroperbenzoic acid was found to be complementary to alkaline hydrogen peroxide as an epoxidation agent for various aurones. Coumarins (10) were obtained on acid-catalysed rearrangement of aurone epoxides (8). The chlorohydrin derivative (11) of aurone epoxide (3), on treatment with alkali, gave the corresponding flavonol (12). Reduced aurone epoxide (5) gave aurone (1) on treatment with hydrochloric acid.
Sign-in/Register to access full text options 
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, Perkin Transactions 1
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.
