2613-13-0Relevant articles and documents
Reaction of schiff base of thiohydrazides with P(NR2)3
Huang, Tian-Bao,Liu, Ling-Fei,Yu, Xiao-Ming,Yang, Wen-Qian,Qian, Xu-Hong,Zhang, Jing-Ling
, p. 307 - 312 (1997)
Three pathways were observed in the reactions of Schiff bases of Thiohydrazides with P(NR2)3,. (a) MeS-R2N exchange: MeS-C(=S)-NHN=CHPh (1) reacted with P(NR2)3 led to new Schiff bases, R2N-C(=S)-NHN=CH=Ph (2). (b) Cleavage of C=S bond and the formation of P=S bond: H2N-C(=S)-NHN=CH=Ph (3) reacted with P(NR2)3 gave rise to the thiophosphoric amide, (Et2N)2P(=S)-NH-CH=N-N=CH-Ph (4). (c) Formation of thiadiazole and triazole: Schiff bases 2a and H2N(MeS)C=N-N=CH-Ph (6) reacted with P(NR2)3 respectively and produced 5-dimethylamino-2-phenyl-2,3-(2H)-1,3,4-thiadiazole (5) and 5-methylthio-2-phenyl-2,3-(2H)-1,3,4-triazole (7).
Thiosemicarbazone Complexes of Uranium(IV)
Gr?dler, Dennis,Haseloer, Alexander,Tobeck, Christian,Bulut, Yusuf,Neud?rfl, J?rg M.,Mathur, Sanjay,Ruschewitz, Uwe,Klein, Axel,Wickleder, Mathias S.,Zegke, Markus
supporting information, p. 1137 - 1139 (2021/02/26)
The first homoleptic thiosemicarbazone complexes of uranium were isolated by reacting uranium tetrachloride in a salt metathesis or acid-base reaction with four equivalents of Na(BzTSC) or H(BzTSC) (BzTSC=benzylthiosemicarbazone), carrying a non-methylated (L1), monomethylated (L2) or dimethylated (L3) terminal amino group, in moderate yields. [U(BzTSCNH2)4] (1), [U(BzTSCNH(CH3))4] (2) and [U(BzTSCN(CH3)2)4] (3) show a remarkable stability towards air, with oxidation potentials in THF between +0.43 and +0.53 V and reduction potentials between ?2.53 and ?2.67 V vs. ferrocene/ferrocenium. The simple methylation of the terminal amino group of the ligand allows for controlled changes in the coordination environments of the complexes. Thermogravimetric analyses indicate that the complexes are stable up to 155 °C.