The heterocyclic compounds containing isothiazole were synthesized by reacting of 3,5-dichloro-4-cyano isothiazole with corres corresponding phenol.All the compoundes were characterized by elemental analysis? 1HNMR an...The heterocyclic compounds containing isothiazole were synthesized by reacting of 3,5-dichloro-4-cyano isothiazole with corres corresponding phenol.All the compoundes were characterized by elemental analysis? 1HNMR and IR spectrometry.The preliminary bioassay showed almost all of the compounds possessed selectivity herbicidal and better fungicidal activities.展开更多
1H1,2,4-triazole derivatives,owing to their extensive uses in pharmaceutical synthesis, four 5substituted1H1,2,4triazoles were prepared with 5amino1H1,2,4triazole3carboxylic acid through diazotiz...1H1,2,4-triazole derivatives,owing to their extensive uses in pharmaceutical synthesis, four 5substituted1H1,2,4triazoles were prepared with 5amino1H1,2,4triazole3carboxylic acid through diazotization and Sandmeyer reaction.Their structures were characterized by IR,UV,1H NMR and MS.展开更多
The halogen substituted anthranilic acid(1) was condensed with acetic anhydride to give halogen substituted 3 methyl 1H 2,4 benoxazin 1 one(2), which was further condensed with hydrazide (3) to give twelve novel halog...The halogen substituted anthranilic acid(1) was condensed with acetic anhydride to give halogen substituted 3 methyl 1H 2,4 benoxazin 1 one(2), which was further condensed with hydrazide (3) to give twelve novel halogen substituted 2 (3 methyl 5 substitued 4H 1,2,4 triazol 4 yl) benzoic acid. All compounds synthesized were identified by 1H NMR and elemental analyses.展开更多
文摘The heterocyclic compounds containing isothiazole were synthesized by reacting of 3,5-dichloro-4-cyano isothiazole with corres corresponding phenol.All the compoundes were characterized by elemental analysis? 1HNMR and IR spectrometry.The preliminary bioassay showed almost all of the compounds possessed selectivity herbicidal and better fungicidal activities.
文摘1H1,2,4-triazole derivatives,owing to their extensive uses in pharmaceutical synthesis, four 5substituted1H1,2,4triazoles were prepared with 5amino1H1,2,4triazole3carboxylic acid through diazotization and Sandmeyer reaction.Their structures were characterized by IR,UV,1H NMR and MS.
文摘The halogen substituted anthranilic acid(1) was condensed with acetic anhydride to give halogen substituted 3 methyl 1H 2,4 benoxazin 1 one(2), which was further condensed with hydrazide (3) to give twelve novel halogen substituted 2 (3 methyl 5 substitued 4H 1,2,4 triazol 4 yl) benzoic acid. All compounds synthesized were identified by 1H NMR and elemental analyses.
