5,10,15,20-四(4-甲氧羰基苯基)卟啉的微波合成

以4-甲酰基苯甲酸甲酯和吡咯为原料,微波辐射合成了5,10,15,20-四(4-甲氧羰基苯基)卟啉。其结构经UV,^1HNMR,IR及元素分析表征。对反应条件进行了探讨,结果表明：在4-甲酰基苯甲酸甲酯10mmol。n(4-甲酰基苯甲酸甲酯)：n(吡咯)=1．0：1．5,丙酸／二甲苯为介质,195W间歇辐射16min的最佳反应条件下,收率22％。     

β-氢醌-四(对羟基苯基)卟啉的合成及其抗肿瘤活性

合成并初步研究了新型β-取代卟啉光敏剂2-氢醌-5,10,15,20-四(4-羟基苯基)卟啉锌(II)(Zn(II)P)、2-氢醌-5,10,15,20-四(4-羟基苯基)卟啉铜(II)(Cu(II)P)的抗肿瘤活性。结果表明,2-氢醌-5,10,15,20-四(4-羟基苯基)卟啉锌(II)的合成总产率60%,该光敏剂对慢性骨髓性白血病肿瘤细胞(K562)具有很好的光敏毒性,Zn(II)P的浓度为320mmol/L时,就能抑制90%以上的白血病肿瘤细胞的生长。     

β-硝基-5,10,15,20-四(2-甲氧基苯基)卟啉合成及其阻旋异构

在采用区域选择性硝化方法合成β-硝基-5,10,15,20-四芳基卟啉铜、镍配合物的过程中,发现并通过核磁等方法分析了5,10,15,20-四(2-甲氧基苯基)卟啉及其相应β-硝基取代物的阻旋异构现象.图谱分析表明,与其结构类似的5,10,15,20-四(2-羟基苯基)卟啉及5,10,15,20-四(4-甲氧基苯基)卟啉系列化合物没有该阻旋异构现象,说明邻位甲氧基阻碍了苯环与芳环之间C-C单键的旋转.进一步通过Chemdraw 3D Ultra软件能量最小化计算,讨论了阻转异构体可能的方式.     

环己烷并卟啉的合成及光谱和电化学性质研究

合成了三种在中位上具有不同取代苯基的环己烷并卟啉:5,10,15,20-四(4-甲苯基)环己烷并卟啉,5,10,15,20-四苯基环己烷并卟啉和5,10,15,20-四(4-氯苯基)环己烷并卟啉。利用核磁共振及质谱对它们进行了结构表征,研究了它们在二氯甲烷和吡啶溶剂中的紫外-可见光谱和电化学性质,探讨了卟啉大环周边的取代基和溶剂对化合物的光谱和氧化还原电位的影响,发现β-位上的环己烷取代基对化合物的光谱和电化学性质具有显著的影响。     

新型2-氢醌-多羟基卟啉的合成及其抗菌活性研究

为寻找新的光动力治疗光敏剂,首次利用电中性的对苯二酚与2-硝基-5,10,15,20-四芳基卟啉直接反应,制备了一系列新型2-氢醌-5,10,15,20-四(4-羟基苯基)卟啉,分离产率达90%以上.用青霉素钠做对照,首次研究了2-氢醌-5,10,15,20-四(4-羟基苯基)卟啉及其Ni(Ⅱ),Zn(Ⅱ)配合物对金黄色葡萄球菌(Staphylococcus aureus,ATCC 25923)和大肠杆菌(Escherichia coli,ATCC 25922)的抑菌活性,显示其浓度为80μmol/L时,就能完全抑制金黄色葡萄球菌的生长(而相应的青霉素钠的浓度为320μmol/L),但对大肠杆菌的作用不明显.结果表明,2-氢醌-5,10,15,20-四(4-羟基苯基)卟啉及其金属配合物在杀灭金黄色葡萄球菌等方面具有很好的应用前景.     

镧系乙酰丙酮-5,10,15,20-四(4-吡啶基 )卟啉配合物

制备了乙酰丙酮-5,10,15,20-四(4-吡啶基)卟啉稀土配合物Ln(TPyP)acac[In:Dy,Ho,Yb,Lu;H~2TPyP:5,10,15,20-四(4-吡啶基)卟啉;Hacac:乙酰丙酮].配合物由一 个中心稀土离子,一个乙酰丙酮和一个四(4-吡啶基)卟啉组成,乙酰丙酮以氧双卤配位,卟啉以氮四卤配位,因此配合物有六配位的结构.     

哌嗪取代卟啉的合成、表征及其抗癌活性

设计并合成了6个具有抗癌活性的哌嗪取代卟啉化合物,分别为5,10,15,20-四[4-(4'-乙基哌嗪基)苯基]卟啉(TEPPH2,8a),5,10,15,20-四[4-(4'-丁基哌嗪基)苯基]卟啉(TBPPH2,8b),5,10,15,20-四[4-(4'-庚基哌嗪基)苯基]卟啉(THPPH2,8c),5,10,15,20-四[4-(4'-苯基哌嗪基)苯基]卟啉(TPhPPH2,8d),5-[4-(4'-乙基哌嗪基)苯基]-10,15,20-三苯基卟啉(EPTPPH2,8e)和5-[4-(4'-丁基哌嗪基)苯基]-10,15,20-三苯基卟啉(BPTPPH2,8f).这些卟啉化合物都由取代苯甲醛与吡咯缩合而成,每一个卟啉分子中含有一个或四个具有抗癌活性的取代哌嗪结构,结构经元素分析,MS,1H NMR,IR和UV-vis等表征.初步的生物活性研究表明,这些化合物具有一定的抗癌活性,因而在医学上可能具有潜在应用前景.     

二茂铁取代卟啉的合成表征及电化学性质

通过吡咯与二茂铁甲醛和对甲基苯甲醛的直接交叉缩合反应,合成并成功分离了6个含有0~4个二茂铁取代基的卟啉化合物:5,10,15,20-四(4-甲苯基)卟啉[(CH3Ph)4PH2]、5-(二茂铁基)-10,15,20-三(4-甲苯基)卟啉[Fc(CH3Ph)3PH2]、cis-5,10-二(二茂铁基)-15,20-二(4-甲苯基)卟啉[cis-Fc2(CH3Ph)2PH2]、trans-5,15-二(二茂铁基)-10,20-二(4-甲苯基)卟啉[trans-Fc2(CH3Ph)2PH2]、5,10,15-三(二茂铁基)-20-(4-甲苯基)卟啉[Fc3(CH3Ph)PH2]、5,10,15,20-四(二茂铁基)卟啉[Fc4PH2]。用紫外-可见和红外光谱、核磁共振及质谱等技术对卟啉化合物进行了表征,用微量光谱滴定法测定了化合物在非水溶剂中的质子化反应常数,研究了它们的电化学和光谱电化学性质。结果表明,二茂铁取代基对化合物的光谱及氧化还原电位有较大的影响。     

5-(对-β-乙酸乙酯基氨基苯基)-10,15,20-三苯基卟啉的合成

以5,10,15,20-四苯基卟啉为原料,经硝化,还原和取代反应合成了新化合物5-(对-β-乙酸乙酯基氨基苯基)-10,15,20-三苯基卟啉,其结构经UV,1H NMR,IR和元素分析表征。     

乙酰丙酮-5,10,15,20-四-取代苯基卟啉钇的制备和表征

有机溶性乙酰丙酮-四-苯基卟啉希土配合物已有报告,但苯基上取代的钇的配合物的衍生物至今没见报道。本文首次制得乙酰丙酮-5,10,15,20-四邻氯苯基卟啉钇Y(o-Cl)Tppacac(H_2Tpp:四苯基卟啉:Hacac:乙酰丙酮;R_1:Cl,R_2=R_3:H),四间氯苯基卟啉钇Y(m-Cl)Tppacac(R_2:Cl,R_1=R_3:H),四对氯苯基卟啉钇Y(p-Cl)Tppacac(R_3:Cl,R_1=R_2:H),四邻甲氧基苯基卟啉钇Y(o-CH_3O)Tppacac(R_1:CH_3O,R_2=R_3:H)和四对甲氧苯基卟啉钇Y(p-CH_3O)Tppacac(R_3:CH_3O,R_1=R_2:H),并用元素分析、红外光谱、紫外光谱和热分析进行了表征。     

四(4－N-吡啶基)卟啉衍生物的合成及表征

阳离子卟啉配体;配合物;还原电位;四(4－N-吡啶基)卟啉衍生物的合成及表征     

Synthesis and nanostructures of 5,10,15,20-tetrakis(4-piperidyl)porphyrin

A new water-soluble porphyrin, 5,10,15,20-tetrakis(4-piperidyl)porphyrin (T(4-Pip)P), has been synthesized. T(4-Pip)P is related to the extensively studied water-soluble porphyrin 5,10,15,20-tetrakis(4-pyridyl)porphyrin (T(4-Py)P) but has substituents with different electronic and hydrogen-bonding properties and is soluble over a much larger pH range due to the higher pK_a of its conjugate acid T(4-H-Pip)P⁴⁺. Investigations of the ionic self-assembly reactions of T(4-H-Pip)P⁴⁺ with anionic water-soluble porphyrins reveal that it forms nanoscale materials.     

Synthesis and spectrophotometric study of the acid-base and complexing properties of 2,3,7,8,12,13,17,18-Octaethyl-5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin in acetonitrile

2,3,7,8,12,13,17,18-Octaethyl-5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin has been synthesized, and its acid-base and complexing properties in the systems 1,8-diazabicyclo[5.4.0]undec-7-ene-acetonitrile, acetonitrile-Zn(OAc)₂, and 1,8-diazabicyclo[5.4.0]undec-7-ene-acetonitrile-Zn(OAc)₂ have been studied by spectrophotometry. Titration of 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin with 1,8-diazabicyclo[5.4.0]undec-7-ene is accompanied by successive deprotonation of the pyrrole nitrogen atoms with formation of the corresponding mono- and dianion. The overall acid dissociation constant of the title compound has been determined. The complexation of neutral and doubly deprotonated 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin with Zn(OAc)₂ has been studied, and kinetic parameters for the formation of the zinc complex according to the molecular and ionic mechanisms have been determined. Extra coordination of 1,8-diazabicyclo[5.4.0]undec-7-ene by the zinc complex of 2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin.     

Synthesis of 5,10,15,20-tetrakis(4-tert- butyl-2,6-dicarboxyphenyl)porphyrin: a versatile bis-faced porphyrin synthon for D4-symmetric chiral porphyrins

[see structure]. A versatile bis-faced porphyrin synthon, 5,10,15,20-tetrakis(4-tert-butyl-2,6-dicarboxyphenyl)porphyrin, was synthesized. The eight carboxyl groups were readily converted into various amide groups, and condensation with chiral amines led to various D4-symmetric chiral porphyrins with rigid structures.     

Electrochemical synthesis and properties of polyporphyrin films based on 5,10,15,20-tetra(4-pyridyl)porphyrin

Polyporphyrin films were obtained by electrooxidative polymerization of 5,10,15,20-tetra(4-pyridyl)porphyrin which, in turn, was obtained by condensation of pyrrole with pyridine-4-carboxaldehyde. The polymer formation involved the side substituents, with the π-conjugated porphyrin platform being preserved. The obtained polyporphyrin forms an electroconductive coating possessing semiconductor properties with the band gap of 1.76 eV     

Lanthanide Complexes with Acetylacetonate and 5,10,15,20-Tetra[para-(4-chlorobenzoyloxy)phenyl]porphyrin

The lanthanide complexes of acetylacetonate and5 ,1 0 ,1 5 ,2 0 - tetra[para- (chlorobenzoy-loxy) phenyl] porphyrin having a general formula Ln[(cbop) 4 p] acac(where Ln=Tb,Ho,Er,Tm;cbop=(4- chlorobenzoyloxy) phenyl;Hacac=acetylacetone;p=porphyrin) wereprepared and characterized.The structure of the complexs was proposed.Metalloporphyrins have been providing an active research field since the beginning of thiscentury because of their involvementin various chemical and biological processes.T…     

TRMC, XPS, and EPR characterizations of polycrystalline TiO2 porphyrin impregnated powders and their catalytic activity for 4-nitrophenol photodegradation in aqueous suspension

Characterization of polycrystalline TiO(2) bare or porphyrin impregnated powders, used as photocatalysts for the degradation of 4-nitrophenol (4-NP) in aqueous suspension, was performed by time-resolved microwave conductivity (TRMC) measurements and electronic paramagnetic resonance (EPR) and X-ray photoelectron (XPS) spectroscopies. The presence of porphyrin sensitizers, as the metal-free or Cu [5,10,15,20-tetra (4-tert-butylphenyl)] porphyrin, impregnated onto the TiO(2) surface improved the photocatalytic activity of the bare TiO(2). TRMC measurements indicate that the number and lifetime of the photoinduced excess charge carriers increase in the presence of the macrocycles, and EPR and XPS spectroscopies support the mechanistic hypotheses based on the photoreactivity experiments.     

Preliminary communication Enantiotropic and monotropic transitions of the discotic mesogen 5,10,15,20-tetrakis(4-n-dodecylphenyl)porphyrin under pressure

The crystal and mesophase transitions of the discotic material 5,10,15,20-tetrakis(4- n-dodecylphenyl)porphyrin have been studied by high pressure DTA and wide angle X-ray diffraction. At lower pressures, the discotic lamellar (DL) phase is enantiotropic, but at higher pressures above a critical point determined as 240MPa and 170 C the DL phase is monotropic.     

Immobilization of 5,10,15,20-tetrakis(4’-carboxyphenyl)porphyrin on the surface of a modified polypropylene film

The immobilization of 5,10,15,20-tetrakis(4’-carboxy-phenyl)porphyrin on the surface modified polypropylene films was investigated. To activate the surface of the polypropylene the method of structural-chemical modification of the acrylamide and polyvinyl alcohol developed, which can increase the number immobilizing porphyrin 15–20 times. Modified materials possess of antimicrobial activity.     

卟啉二酸H4THSPP2+聚集状态的吸收光谱研究

强酸性条件下(pH＜0.2),H4THSPP2+的B带发生红移,表明有J类型聚集体(肩并肩排列)生成,溶剂极性的降低有利于H4THSPP2+形成J类型聚集体离子强度的增加使H4THSPP2+的B带发生蓝移,表明形成了H类型二聚体(面对面排列);研究同时表明,适当的离子强度有利于J类型聚集体的稳定,而过高的离子强度则会破坏J类型聚集体,并促使H类型二聚体的形成.