. 2018 Oct 30;23(11):2820. doi: 10.3390/molecules23112820
© 2018 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 (http://creativecommons.org/licenses/by/4.0/).
Scheme 3.
Synthesis of cyclobutylacetic acid (3a).