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. 2017 Nov 29;33(1):126–129. doi: 10.1080/14756366.2017.1404591

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© 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.

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Scheme 1. — Synthesis of 2,3-didithiocarbamate-substituted naphthoquinones. Reagents and conditions: (a) formaldehyde, HCl, HAc, H₂O, 0 °C, 68.9%; (b) CS₂, amine, CH₃CN, rt, 78–94%.