A series of bis(1,4 diacylthiosemicarbazide) compounds were synthesized in good yields by the condensation of dicarbonyl isothiocyanate 2 with benzoic hydrazide or dicarbonyl dihydrazide 5 with benzoic isothiocyanate ...
The catalystic recycle of carbonylation of benzyl chloride catalyzed by Pa TPPTS is more and more important for industry application.The effect of acidity has been studied in this paper.