A new bimetallic Cu?complex, [(phen)Cu(μ bdmp)Cu(phen)](ClO4)4·2H2O, where phen and bdmp denote 1,10 phenanthroline and 1,1′ bis(nitrilomethylidyne 4,5 diazafluoren) 4,4′ (μ methylene)bisphenyl respectively w...A new bimetallic Cu?complex, [(phen)Cu(μ bdmp)Cu(phen)](ClO4)4·2H2O, where phen and bdmp denote 1,10 phenanthroline and 1,1′ bis(nitrilomethylidyne 4,5 diazafluoren) 4,4′ (μ methylene)bisphenyl respectively was synthesized and its DNA binding behavior was studied by photophysical methods. It has been found that calf thymus DNA could result in significant decrease both in electronic absorption and fluorescent emission of the complex. The fluorescence quenching by ferrocyanide could be reduced to some extent for the complexin presence of DNA. These facts suggest that this dicopper?complex binds to double helix DNA by partial intercalation.展开更多
The condensation product from D-glucose and N,N’-diamino-diphenyl-methan was prepared and the optimal synthetic conditions were determined;D -Glucose and N,N’-Diamino-diphenyl-methane(1mol∶1mol)were dissolved in an...The condensation product from D-glucose and N,N’-diamino-diphenyl-methan was prepared and the optimal synthetic conditions were determined;D -Glucose and N,N’-Diamino-diphenyl-methane(1mol∶1mol)were dissolved in anhydrous methanol,reflux raction 25h,yield 53.3%,purity 99.4%,and its structure was characterized by elemental analysis,IR and NMR spectroscopy.The hydrolysis of the condensation product was studied,and results show that the condensation reaction was at equilibrium,and the influence of time and the N,N’-diamino-dimphenyl-methan concentration in water on the hydrolysis were researched.展开更多
It was investigated that the reaction of 4,4′-diphenylmethanediamine(MDA)with CO2 and bromoethane to synthesize diethyl 4,4′-diphenylmethanedicarbamate(MDC)under the catalysis of Cs2CO3 cooperating with DBU in super...It was investigated that the reaction of 4,4′-diphenylmethanediamine(MDA)with CO2 and bromoethane to synthesize diethyl 4,4′-diphenylmethanedicarbamate(MDC)under the catalysis of Cs2CO3 cooperating with DBU in supercritical carbon dioixide.The optimum reaction conditions were MDA(10mmol),EtBr(30mmol),Cs2CO3(6mmol)as catalyst cooperating with DBU(30mmol),a temperature of 60 °C,a pressure of 8 MPa,and a reaction time of 4 hours.MDC was obtained in the yield of 88% under the optimum reaction condtions.展开更多
文摘A new bimetallic Cu?complex, [(phen)Cu(μ bdmp)Cu(phen)](ClO4)4·2H2O, where phen and bdmp denote 1,10 phenanthroline and 1,1′ bis(nitrilomethylidyne 4,5 diazafluoren) 4,4′ (μ methylene)bisphenyl respectively was synthesized and its DNA binding behavior was studied by photophysical methods. It has been found that calf thymus DNA could result in significant decrease both in electronic absorption and fluorescent emission of the complex. The fluorescence quenching by ferrocyanide could be reduced to some extent for the complexin presence of DNA. These facts suggest that this dicopper?complex binds to double helix DNA by partial intercalation.
文摘The condensation product from D-glucose and N,N’-diamino-diphenyl-methan was prepared and the optimal synthetic conditions were determined;D -Glucose and N,N’-Diamino-diphenyl-methane(1mol∶1mol)were dissolved in anhydrous methanol,reflux raction 25h,yield 53.3%,purity 99.4%,and its structure was characterized by elemental analysis,IR and NMR spectroscopy.The hydrolysis of the condensation product was studied,and results show that the condensation reaction was at equilibrium,and the influence of time and the N,N’-diamino-dimphenyl-methan concentration in water on the hydrolysis were researched.
文摘It was investigated that the reaction of 4,4′-diphenylmethanediamine(MDA)with CO2 and bromoethane to synthesize diethyl 4,4′-diphenylmethanedicarbamate(MDC)under the catalysis of Cs2CO3 cooperating with DBU in supercritical carbon dioixide.The optimum reaction conditions were MDA(10mmol),EtBr(30mmol),Cs2CO3(6mmol)as catalyst cooperating with DBU(30mmol),a temperature of 60 °C,a pressure of 8 MPa,and a reaction time of 4 hours.MDC was obtained in the yield of 88% under the optimum reaction condtions.
