. 2017 May 26;20(1):434–440. doi: 10.1080/15685551.2017.1332138
© 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 7.
The reusability of the Cu(II) catalyst.