摘要
分别在19种溶剂体系中合成了A3B型不对称卟啉化合物meso-5-对甲氧基苯基-10,15,20-三(对氯苯基)卟啉,并用密度泛函理论对其结构进行了优化,得到了稳定结构。研究发现,溶剂粘度、极性等性质对产物的收率具有重要影响,其中在N,N-二甲基甲酰胺(DMF)、二甲基亚砜(DMSO)等体系下无法得到产物,因其作为Lewis碱削弱了体系的酸性,阻碍反应的进行。在乙酸为溶剂的体系下,目标产物在总的卟啉化合物中的分布最高为28.8%。在丙酸与乙酸混合溶剂体系下,卟啉的总收率最高达32.4%,目标产物收率也达到最高6.6%。
5,10,15-Tri( p-chlorophenyl)-20-( p-methoxy) phenyl porphyrin was synthesized in 19 kinds of solvents and its structure was optimized by density functional theory( DFT) to obtain the stable structure. The research found that the characters of solvents have great effect on this reaction and the distribution of individual porphyrin products. As Lewis base,N,N-dimethyl formamide,dimethyl sulfoxide and so on can not obtain porphyrins. In the system of acetic acid,5,10,15-tri( p-chlorophenyl)-20-( pmethoxy) phenyl porphyrin have the maximum distribution( 28. 8%) in the total porphyrins. In the mixture of acetic and proponic acid,the overall yield of porphyrins and the yield of the target porphyin arrived up to 32. 4% and 6. 6%,respectively.
出处
《化学试剂》
CAS
北大核心
2016年第4期301-303,310,共4页
Chemical Reagents
基金
国家自然科学基金资助项目(21276006)
关键词
A3B型卟啉
溶剂性质
结构表征
A3B-type porphyrin
solvent characters
structure characterization