. 2014 Sep 3;19(9):13788–13802. doi: 10.3390/molecules190913788
© 2014 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 license (http://creativecommons.org/licenses/by/3.0/).
Scheme 22.
Synthesis of 2,2':5',2''-terthiophene.