以甲基丙烯酸甲酯(MMA)和3-环己烯-1-甲醇为原料,采用酯交换法合成了甲基丙烯酸-3-环己烯基甲酯,考察了催化剂种类与用量、反应时间以及反应物配比等因素对反应结果的影响。得到的较佳反应条件为采用有机锡类催化剂,m(有机锡)∶m(3-环己...以甲基丙烯酸甲酯(MMA)和3-环己烯-1-甲醇为原料,采用酯交换法合成了甲基丙烯酸-3-环己烯基甲酯,考察了催化剂种类与用量、反应时间以及反应物配比等因素对反应结果的影响。得到的较佳反应条件为采用有机锡类催化剂,m(有机锡)∶m(3-环己烯-1-甲醇)=0.06、反应时间5h、n(MMA)∶n(3-环己烯-1-甲醇)=3∶1。在此条件下,3-环己烯-1-甲醇的转化率达97%以上,产品收率大于94%。并采用IR和1 H NMR技术对产品的结构进行了表征。展开更多
Chial Complexes of Mn3+, Fe3+, Ni2+ and Cu2+ were prepared from chiral Schiff Base ligand obtained by condensation of new type methyl 5-(1,1-dimethylethyl)-3-formyl-4-hydroxybenzoate synthesized by this work with (1R,...Chial Complexes of Mn3+, Fe3+, Ni2+ and Cu2+ were prepared from chiral Schiff Base ligand obtained by condensation of new type methyl 5-(1,1-dimethylethyl)-3-formyl-4-hydroxybenzoate synthesized by this work with (1R, 2R)-1,2-diaminocyclohexane. The new chiral ligand and complexes were characterized by elementary analysis, 1H NMR, IR and UV-Vis.展开更多
文摘以甲基丙烯酸甲酯(MMA)和3-环己烯-1-甲醇为原料,采用酯交换法合成了甲基丙烯酸-3-环己烯基甲酯,考察了催化剂种类与用量、反应时间以及反应物配比等因素对反应结果的影响。得到的较佳反应条件为采用有机锡类催化剂,m(有机锡)∶m(3-环己烯-1-甲醇)=0.06、反应时间5h、n(MMA)∶n(3-环己烯-1-甲醇)=3∶1。在此条件下,3-环己烯-1-甲醇的转化率达97%以上,产品收率大于94%。并采用IR和1 H NMR技术对产品的结构进行了表征。
文摘Chial Complexes of Mn3+, Fe3+, Ni2+ and Cu2+ were prepared from chiral Schiff Base ligand obtained by condensation of new type methyl 5-(1,1-dimethylethyl)-3-formyl-4-hydroxybenzoate synthesized by this work with (1R, 2R)-1,2-diaminocyclohexane. The new chiral ligand and complexes were characterized by elementary analysis, 1H NMR, IR and UV-Vis.