By taking 3 chloro 4 methyl aniline as raw material,two solvent mixtures of naphtha and petroleum ether in a certain proportion,and through sulfonation 2 amino 4 chloro 5 toluene sulfonic acid was synthesized.The yiel...By taking 3 chloro 4 methyl aniline as raw material,two solvent mixtures of naphtha and petroleum ether in a certain proportion,and through sulfonation 2 amino 4 chloro 5 toluene sulfonic acid was synthesized.The yield of product was about 90%,and the recovery of solvents was over 95%.展开更多
测定5-氯-2戊酮和环丙基甲基酮的物化性质:密度、黏度、摩尔体积、热膨胀系数和表面张力。测定5-氯-2-戊酮(1)+环丙基甲基酮(2)二元体系的汽液相平衡(VLE),并应用Aspen Plus V11中Van Laar方程、Wilson方程和NRTL方程对实验数据进行关联...测定5-氯-2戊酮和环丙基甲基酮的物化性质:密度、黏度、摩尔体积、热膨胀系数和表面张力。测定5-氯-2-戊酮(1)+环丙基甲基酮(2)二元体系的汽液相平衡(VLE),并应用Aspen Plus V11中Van Laar方程、Wilson方程和NRTL方程对实验数据进行关联,回归得到二元交互参数。实验结果通过热力学一致性检查。该研究不仅补充了汽液相平衡数据库,也为5-氯-2-戊酮与环丙基甲基酮的分离提供热力学数据。展开更多
In order to develop novel antitumor d rugs,1,5-bis(2-hydroxybenzylidene)-thiocarbohydrazide(HL)and its Ag ?Complex([Ag2L]·NO3)have been prepared and characterize d by elemental analysis,IR,UV,1 H NMR and molar co...In order to develop novel antitumor d rugs,1,5-bis(2-hydroxybenzylidene)-thiocarbohydrazide(HL)and its Ag ?Complex([Ag2L]·NO3)have been prepared and characterize d by elemental analysis,IR,UV,1 H NMR and molar conductance,respectively.The inhibitory effects of them on five tumor cell lines,including HL-60,Bel-7402,EJ,HCT-8and A431 have been measured by using MTT(Dimethoxyneotetrazolium)colorimetric assay and SRB(Sulforhodamine B)assay.The result indicated that the Ag Complex has str onger inhibitory effect on the five t umor cell lines than the ligand,especially showed very stro ng effect on HL-60cell and Bel-7402c ell.When the exposure concentration of the complex was 10-5mol·L-1,The inhibitory rate is over 96%.展开更多
3,4-Dihydropyrimidin-2-(1H)-ones were synthesized in high yields by a one-pot cyclocondensation of aldehyde,1,3-dicarbonyl compound,and urea or thiourea using copper o-toluenesulfonate as a catalyst under solvent-free...3,4-Dihydropyrimidin-2-(1H)-ones were synthesized in high yields by a one-pot cyclocondensation of aldehyde,1,3-dicarbonyl compound,and urea or thiourea using copper o-toluenesulfonate as a catalyst under solvent-free conditions at 90℃.Effects of molar ratio of reactants,amount of catalyst,and reaction temperature on the yields of 3,4-dihydropyrimidin-2-(1H)-ones were investigated.The results showed that at the condition of naldehyde∶n1,3-dicarbonyl compounds∶nurea(or thiourea)=1∶1.2∶1.5,1 mol% catalyst(molar percent of aldehyde),2.0 h at 90℃,the yields of products were 51-96%.After reaction,the catalyst could be reused for four times without distinct loss of catalytic activity.展开更多
文摘By taking 3 chloro 4 methyl aniline as raw material,two solvent mixtures of naphtha and petroleum ether in a certain proportion,and through sulfonation 2 amino 4 chloro 5 toluene sulfonic acid was synthesized.The yield of product was about 90%,and the recovery of solvents was over 95%.
文摘建立测定鹿皮胶中L-羟脯氨酸、L-脯氨酸、甘氨酸、丙氨酸、5-羟甲基糠醛的含量检测方法。L-羟脯氨酸、L-脯氨酸、甘氨酸、丙氨酸HPLC法采用的色谱柱为岛津(上海)实验器材有限公司产品Cat.NO 5020-39203Serial NO.8K3706-11;检测条件:以乙腈-0.1 mol/L醋酸钠溶液为流动相A,以乙腈-水(4∶1)为流动相B,检测波长为254 nm,梯度洗脱流速为1.0 m L/min。5-羟甲基糠醛HPLC法采用的色谱柱为Wonda Sil TM C_(18)Superb[5μm,4.6 mm×250 mm(W)]色谱柱;检测条件:流动相为水∶乙腈(95∶5),检测波长为284 nm,流速为1.0 m L/min。2种方法专属性好,精密度、稳定性、重复性、加样回收率均符合要求。研究建立了适用于鹿皮胶中L-羟脯氨酸、L-脯氨酸、丙氨酸、甘氨酸、5-羟甲基糠醛的含量测定HPLC方法,该方法准确可靠、专属性强,可实现定量检测。
文摘测定5-氯-2戊酮和环丙基甲基酮的物化性质:密度、黏度、摩尔体积、热膨胀系数和表面张力。测定5-氯-2-戊酮(1)+环丙基甲基酮(2)二元体系的汽液相平衡(VLE),并应用Aspen Plus V11中Van Laar方程、Wilson方程和NRTL方程对实验数据进行关联,回归得到二元交互参数。实验结果通过热力学一致性检查。该研究不仅补充了汽液相平衡数据库,也为5-氯-2-戊酮与环丙基甲基酮的分离提供热力学数据。
文摘In order to develop novel antitumor d rugs,1,5-bis(2-hydroxybenzylidene)-thiocarbohydrazide(HL)and its Ag ?Complex([Ag2L]·NO3)have been prepared and characterize d by elemental analysis,IR,UV,1 H NMR and molar conductance,respectively.The inhibitory effects of them on five tumor cell lines,including HL-60,Bel-7402,EJ,HCT-8and A431 have been measured by using MTT(Dimethoxyneotetrazolium)colorimetric assay and SRB(Sulforhodamine B)assay.The result indicated that the Ag Complex has str onger inhibitory effect on the five t umor cell lines than the ligand,especially showed very stro ng effect on HL-60cell and Bel-7402c ell.When the exposure concentration of the complex was 10-5mol·L-1,The inhibitory rate is over 96%.
文摘3,4-Dihydropyrimidin-2-(1H)-ones were synthesized in high yields by a one-pot cyclocondensation of aldehyde,1,3-dicarbonyl compound,and urea or thiourea using copper o-toluenesulfonate as a catalyst under solvent-free conditions at 90℃.Effects of molar ratio of reactants,amount of catalyst,and reaction temperature on the yields of 3,4-dihydropyrimidin-2-(1H)-ones were investigated.The results showed that at the condition of naldehyde∶n1,3-dicarbonyl compounds∶nurea(or thiourea)=1∶1.2∶1.5,1 mol% catalyst(molar percent of aldehyde),2.0 h at 90℃,the yields of products were 51-96%.After reaction,the catalyst could be reused for four times without distinct loss of catalytic activity.
