Eight derivatives of 1,3-dimethyl-5-methylthio-4-phenylhydrazonocarboxyl pyrazole were synthesized from 1,3-dimethyl-5-methylthio-4-hydrazinocarboxyl pyrazole. All compounds synthesized were identified by 1H NMR and e...Eight derivatives of 1,3-dimethyl-5-methylthio-4-phenylhydrazonocarboxyl pyrazole were synthesized from 1,3-dimethyl-5-methylthio-4-hydrazinocarboxyl pyrazole. All compounds synthesized were identified by 1H NMR and elemental analysis. Some of them exhibited certain growth inhibition action to Phoma asparagi, Alternaria solani, Gibberella zeae, Physalospora piricola, Colletotrichum lagenarium as tested in vitro at dosage of 50 mg/L.展开更多
The synthetic method of dimethythiotoluene diamine(DMTDA) has been modified by a in one-pot method from diamin toluene and dimethyldisulfide using zinc iodide as catalyst and dimethyl benzene as inert solvent. Loss of...The synthetic method of dimethythiotoluene diamine(DMTDA) has been modified by a in one-pot method from diamin toluene and dimethyldisulfide using zinc iodide as catalyst and dimethyl benzene as inert solvent. Loss of dimethyldisulfide is avoided during the processing, and high purity DMTDA was obtained by acid washing. The structure of DMTDA is characterized by 1H NMR, 13C NMR and IR.展开更多
文摘Eight derivatives of 1,3-dimethyl-5-methylthio-4-phenylhydrazonocarboxyl pyrazole were synthesized from 1,3-dimethyl-5-methylthio-4-hydrazinocarboxyl pyrazole. All compounds synthesized were identified by 1H NMR and elemental analysis. Some of them exhibited certain growth inhibition action to Phoma asparagi, Alternaria solani, Gibberella zeae, Physalospora piricola, Colletotrichum lagenarium as tested in vitro at dosage of 50 mg/L.
文摘The synthetic method of dimethythiotoluene diamine(DMTDA) has been modified by a in one-pot method from diamin toluene and dimethyldisulfide using zinc iodide as catalyst and dimethyl benzene as inert solvent. Loss of dimethyldisulfide is avoided during the processing, and high purity DMTDA was obtained by acid washing. The structure of DMTDA is characterized by 1H NMR, 13C NMR and IR.
