Kinetics of the coordination reaction of tetrakis(Ncarbomethoxymethyl3pyridyl) porphyrin(abbr. H2TβNACMSPyP) with Cu?ion has been studied in ophthalic acid buffer system in an ionic strength of 0.5mol...Kinetics of the coordination reaction of tetrakis(Ncarbomethoxymethyl3pyridyl) porphyrin(abbr. H2TβNACMSPyP) with Cu?ion has been studied in ophthalic acid buffer system in an ionic strength of 0.5mol·dm-3(KCI) at 35.0±0.1℃.The reaction is catalyzed by ophthalic ion. The effect of concentration of the catalyst, metal ion and pH value of solution was discussed. The kinetics equation of the reaction were obtained as d/dt=16.15{(1.0+3.35×1052)/1.0+1.57×10-42}T. The mechanism of the reaction was proposed. The deformation of the ring of porphyrins is the general condition in the reaction. Keyowrds:展开更多
用Mg-Al基复合物催化环氧丙烷（PO）一步嵌入乙酸酐（AA）合成了1,2-丙二醇二乙酸酯（PGDA）,经红外光谱、电喷雾质谱鉴定得到了预期产物。研究了反应温度、n（PO）/n（AA）、PO滴加或一次性投入方式对单PO加成选择性的影响。实验结果表...用Mg-Al基复合物催化环氧丙烷（PO）一步嵌入乙酸酐（AA）合成了1,2-丙二醇二乙酸酯（PGDA）,经红外光谱、电喷雾质谱鉴定得到了预期产物。研究了反应温度、n（PO）/n（AA）、PO滴加或一次性投入方式对单PO加成选择性的影响。实验结果表明,当Mg-Al基复合物用量为1.6 g/100 g AA,n（PO）/n（AA）=1,以0.75g/min滴加PO,反应温度130-135℃时,单PO加成选择性达到ω（PGDA）=98.2%。与传统合成二元醇二酯的方法相比,该路线无需过量加入AA原料,亦不生成副产物,是一条具有工业化前景的合成二元醇二酯的高原子经济性的绿色化学途径。展开更多
文摘Kinetics of the coordination reaction of tetrakis(Ncarbomethoxymethyl3pyridyl) porphyrin(abbr. H2TβNACMSPyP) with Cu?ion has been studied in ophthalic acid buffer system in an ionic strength of 0.5mol·dm-3(KCI) at 35.0±0.1℃.The reaction is catalyzed by ophthalic ion. The effect of concentration of the catalyst, metal ion and pH value of solution was discussed. The kinetics equation of the reaction were obtained as d/dt=16.15{(1.0+3.35×1052)/1.0+1.57×10-42}T. The mechanism of the reaction was proposed. The deformation of the ring of porphyrins is the general condition in the reaction. Keyowrds:
文摘用Mg-Al基复合物催化环氧丙烷（PO）一步嵌入乙酸酐（AA）合成了1,2-丙二醇二乙酸酯（PGDA）,经红外光谱、电喷雾质谱鉴定得到了预期产物。研究了反应温度、n（PO）/n（AA）、PO滴加或一次性投入方式对单PO加成选择性的影响。实验结果表明,当Mg-Al基复合物用量为1.6 g/100 g AA,n（PO）/n（AA）=1,以0.75g/min滴加PO,反应温度130-135℃时,单PO加成选择性达到ω（PGDA）=98.2%。与传统合成二元醇二酯的方法相比,该路线无需过量加入AA原料,亦不生成副产物,是一条具有工业化前景的合成二元醇二酯的高原子经济性的绿色化学途径。
