相关原料利用Gewald反应生成噻吩2,产物同PPH3、C2Cl6、Et3N作用得到膦亚胺3,对氟苯基异氰酸酯与3作用得到碳二亚胺4,4与甲基苯基胺反应得到一种新物质2-(甲基,苯基)氨基-3-对氟苯基-5-甲基-6(1H-1,2,4-三唑-1-基)-噻吩并[2,3-d]嘧啶-4(...相关原料利用Gewald反应生成噻吩2,产物同PPH3、C2Cl6、Et3N作用得到膦亚胺3,对氟苯基异氰酸酯与3作用得到碳二亚胺4,4与甲基苯基胺反应得到一种新物质2-(甲基,苯基)氨基-3-对氟苯基-5-甲基-6(1H-1,2,4-三唑-1-基)-噻吩并[2,3-d]嘧啶-4(3H)-酮5.其结构经1 H NMR,MS和元素分析表征.生物活性测试表明,此种含氟类衍生物对农作物菌体有较强的抑制作用,它对棉花枯萎菌达到90%的抑制率,对其它五种作物病菌也达55%以上的抑制率.展开更多
A study has been carried out of evaluating lipophilicity of some 1 1, 2, 4 triazole compounds by RP HPTLC. An equation that reasonably correlates partition coefficients( c lg P ) with R M 0 values for 23 \{1 1,2,4 tri...A study has been carried out of evaluating lipophilicity of some 1 1, 2, 4 triazole compounds by RP HPTLC. An equation that reasonably correlates partition coefficients( c lg P ) with R M 0 values for 23 \{1 1,2,4 triazole\} compounds was derived and its predictive capability was tested with five 1 1,2,4 triazole compounds. It has been found that RP HPTLC can be extensively applied to determining lipophilicity of \{1 1,2,4 triazole\} compounds.展开更多
A series of diheterocyclic compounds containing 1,2,4-triazolo [1,5-a]pyrimidine and 1, 3,4-oxadiazole were designed and synthesized starting from 2-mercapto-5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine. The structure...A series of diheterocyclic compounds containing 1,2,4-triazolo [1,5-a]pyrimidine and 1, 3,4-oxadiazole were designed and synthesized starting from 2-mercapto-5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine. The structure of all compounds prepared were confirmed by H-1 NMR spectroscopy and elemental analysis. The preliminary bioassay indicated that the title compounds displayed good fungicidal activity against Rhizoctonia solani.展开更多
The crystal structure of the title compound has been determined by single crystal X ray diffraction analysis. C 15 H 14 N 4O 3, M r =298.30, monoclinic, space group P2 1/n, a=9.483(9), b=11.078(9), c...The crystal structure of the title compound has been determined by single crystal X ray diffraction analysis. C 15 H 14 N 4O 3, M r =298.30, monoclinic, space group P2 1/n, a=9.483(9), b=11.078(9), c=13.700(9), β=100.19(7)°, V=1417(4) 3, Z=4, D x =1.399 g.cm -3 , μ =0.0942 mm -1 ; F (000)=624, final R =0.074 and R w =0.074 for 1502 observed reflections〔 I≥3σ(I )〕. The results show that all ring atoms in the triazolopyrimidinyl moiety were coplanar with strong tensile force, which might be an important active site.展开更多
文摘相关原料利用Gewald反应生成噻吩2,产物同PPH3、C2Cl6、Et3N作用得到膦亚胺3,对氟苯基异氰酸酯与3作用得到碳二亚胺4,4与甲基苯基胺反应得到一种新物质2-(甲基,苯基)氨基-3-对氟苯基-5-甲基-6(1H-1,2,4-三唑-1-基)-噻吩并[2,3-d]嘧啶-4(3H)-酮5.其结构经1 H NMR,MS和元素分析表征.生物活性测试表明,此种含氟类衍生物对农作物菌体有较强的抑制作用,它对棉花枯萎菌达到90%的抑制率,对其它五种作物病菌也达55%以上的抑制率.
文摘A study has been carried out of evaluating lipophilicity of some 1 1, 2, 4 triazole compounds by RP HPTLC. An equation that reasonably correlates partition coefficients( c lg P ) with R M 0 values for 23 \{1 1,2,4 triazole\} compounds was derived and its predictive capability was tested with five 1 1,2,4 triazole compounds. It has been found that RP HPTLC can be extensively applied to determining lipophilicity of \{1 1,2,4 triazole\} compounds.
基金The project was supported by the NNSF of China (Grant No. 29802002) the NSF of Hubei Province the Dawn Plan of Science and Technology for Young Scientists of Wuhan City and Foundation for University Key Teacher by the Ministry of Education of China.
文摘A series of diheterocyclic compounds containing 1,2,4-triazolo [1,5-a]pyrimidine and 1, 3,4-oxadiazole were designed and synthesized starting from 2-mercapto-5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine. The structure of all compounds prepared were confirmed by H-1 NMR spectroscopy and elemental analysis. The preliminary bioassay indicated that the title compounds displayed good fungicidal activity against Rhizoctonia solani.
文摘The crystal structure of the title compound has been determined by single crystal X ray diffraction analysis. C 15 H 14 N 4O 3, M r =298.30, monoclinic, space group P2 1/n, a=9.483(9), b=11.078(9), c=13.700(9), β=100.19(7)°, V=1417(4) 3, Z=4, D x =1.399 g.cm -3 , μ =0.0942 mm -1 ; F (000)=624, final R =0.074 and R w =0.074 for 1502 observed reflections〔 I≥3σ(I )〕. The results show that all ring atoms in the triazolopyrimidinyl moiety were coplanar with strong tensile force, which might be an important active site.
