Six diaryl acylhydrazine compounds were synthesized in normal temperature with self-made acyl-diazene compounds as raw materials and NH2NH2·H2O as reducer.The products were confirmed by means of elemental analysi...Six diaryl acylhydrazine compounds were synthesized in normal temperature with self-made acyl-diazene compounds as raw materials and NH2NH2·H2O as reducer.The products were confirmed by means of elemental analysis,IR and 1H NMR.In the results of IR,there were two N-H absorption at approximately 3200 and 3400 cm-1.However,the absorptions of N=N in raw materials disappeared.In the results of 1H NMR,the N-H chemical shifts couldn’t be found.Meanwhile,two N-H chemical shifts were detected about from 8.46 to 11.38,respectively.The results of products’ elemental analysis were consistent with the theoretical values.The yields of those six products were about from 84% to 93%.展开更多
Thirty acylthiosemicarbazide derivatives(Ⅰ) were synthesized by addition reaction of 5 aryl 2 furoyl isothiocyanate(Ⅲ) with aroylhydrazines(Ⅱ). Their compositions and structures were confirmed by elemental analysis...Thirty acylthiosemicarbazide derivatives(Ⅰ) were synthesized by addition reaction of 5 aryl 2 furoyl isothiocyanate(Ⅲ) with aroylhydrazines(Ⅱ). Their compositions and structures were confirmed by elemental analysis, IR and 1H NMR spectrometry measurements. The plant growth effects of these compounds on rice and cucumber have been tested preliminarily.展开更多
Ten N 1 pyridylmethyl N arylacyl urea derivatives were synthesized by the nucleophilic addition reaction of N alkyl (2 chloro 5 pyridylmethyl)amine with 2,6 difluorophenylacyl isocyanate, and characterized by IR, 1H N...Ten N 1 pyridylmethyl N arylacyl urea derivatives were synthesized by the nucleophilic addition reaction of N alkyl (2 chloro 5 pyridylmethyl)amine with 2,6 difluorophenylacyl isocyanate, and characterized by IR, 1H NMR and elemental analysis. Preliminary biological tests showed that these compounds have good insecticidal activity against Nephotettix cincticeps and Mosquito larvae , especially, compounds 3f and 3j which could give 100% mortality for Nephotettix cincticeps in dosage with mass fraction of 5×10 -5 % .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
文摘Six diaryl acylhydrazine compounds were synthesized in normal temperature with self-made acyl-diazene compounds as raw materials and NH2NH2·H2O as reducer.The products were confirmed by means of elemental analysis,IR and 1H NMR.In the results of IR,there were two N-H absorption at approximately 3200 and 3400 cm-1.However,the absorptions of N=N in raw materials disappeared.In the results of 1H NMR,the N-H chemical shifts couldn’t be found.Meanwhile,two N-H chemical shifts were detected about from 8.46 to 11.38,respectively.The results of products’ elemental analysis were consistent with the theoretical values.The yields of those six products were about from 84% to 93%.
文摘Thirty acylthiosemicarbazide derivatives(Ⅰ) were synthesized by addition reaction of 5 aryl 2 furoyl isothiocyanate(Ⅲ) with aroylhydrazines(Ⅱ). Their compositions and structures were confirmed by elemental analysis, IR and 1H NMR spectrometry measurements. The plant growth effects of these compounds on rice and cucumber have been tested preliminarily.
文摘Ten N 1 pyridylmethyl N arylacyl urea derivatives were synthesized by the nucleophilic addition reaction of N alkyl (2 chloro 5 pyridylmethyl)amine with 2,6 difluorophenylacyl isocyanate, and characterized by IR, 1H NMR and elemental analysis. Preliminary biological tests showed that these compounds have good insecticidal activity against Nephotettix cincticeps and Mosquito larvae , especially, compounds 3f and 3j which could give 100% mortality for Nephotettix cincticeps in dosage with mass fraction of 5×10 -5 % .
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.
