Title thioureas have been synthesized by reaction of substituted phenylamines with 1,4- or 1,3-benzenedicarbonyl chloride and ammonium thiocyanate by solid-liquid phase transfer catalysis using polyethylene glycol-400...Title thioureas have been synthesized by reaction of substituted phenylamines with 1,4- or 1,3-benzenedicarbonyl chloride and ammonium thiocyanate by solid-liquid phase transfer catalysis using polyethylene glycol-400(PEG-400) as a catalyst in yield of 80%～96%. The compounds were characterized and identified by elemental analysis, IR and 1H NMR.展开更多
Aroyl isothiocyanate is synthesized by the reaction of aroyl chloride with ammoniurrthiocyanate under the condition of solid1iquid phase transfer catalysis using PEG-400 as the catalyst.The tater needs not to be isola...Aroyl isothiocyanate is synthesized by the reaction of aroyl chloride with ammoniurrthiocyanate under the condition of solid1iquid phase transfer catalysis using PEG-400 as the catalyst.The tater needs not to be isolated and is reacted with aromatic amine immediately to give N-aroy 1-N′-aryl thiourea derivatives in high yield.The promoting effects of the title compounds on wheat growth are tested preliminily.展开更多
Eight N (substituted pyrimidin 2 yl) N β (or γ )pyridinecarbonyl thioureas are synthesied and tested for biological activity.All of them are new compounds and their structures are comfirmed by IR, 1HNMR and elemen...Eight N (substituted pyrimidin 2 yl) N β (or γ )pyridinecarbonyl thioureas are synthesied and tested for biological activity.All of them are new compounds and their structures are comfirmed by IR, 1HNMR and elementary analysis.The preliminary biological test shows that some of the target compounds have excellent inhibitory activities against root and stalk of dicotyledon plant (such as rape) and a good regulating activity for plant growth of monocotyledon(such as corn).展开更多
文摘Title thioureas have been synthesized by reaction of substituted phenylamines with 1,4- or 1,3-benzenedicarbonyl chloride and ammonium thiocyanate by solid-liquid phase transfer catalysis using polyethylene glycol-400(PEG-400) as a catalyst in yield of 80%～96%. The compounds were characterized and identified by elemental analysis, IR and 1H NMR.
文摘Aroyl isothiocyanate is synthesized by the reaction of aroyl chloride with ammoniurrthiocyanate under the condition of solid1iquid phase transfer catalysis using PEG-400 as the catalyst.The tater needs not to be isolated and is reacted with aromatic amine immediately to give N-aroy 1-N′-aryl thiourea derivatives in high yield.The promoting effects of the title compounds on wheat growth are tested preliminily.
文摘Eight N (substituted pyrimidin 2 yl) N β (or γ )pyridinecarbonyl thioureas are synthesied and tested for biological activity.All of them are new compounds and their structures are comfirmed by IR, 1HNMR and elementary analysis.The preliminary biological test shows that some of the target compounds have excellent inhibitory activities against root and stalk of dicotyledon plant (such as rape) and a good regulating activity for plant growth of monocotyledon(such as corn).
