GRAPHICAL ABSTRACTReactions of hydrazones derived from oxamic acid thiohydrazidesAll authorsYulia A. Volkova, Elena I. Chernoburova, Albina S. Petrova, Alexander A. Shtil & Igor V. Zavarzinhttps://doi.org/10.1080/10426507.2016.1250759Published online:21 October 2016