. 2022 Nov 5;27(21):7599. doi: 10.3390/molecules27217599
© 2022 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Scheme 3.
Formation and mechanism of cyclic ketone 4.