钴（Ⅱ）－5－取代邻菲罗啉－α－氨基酸三元配合物的稳定性研究

本文在２５．０±０．１℃，Ｉ＝０．１ｍｏｌ·ｄｍ（－３）ＫＮＯ３存在下，采用ｐＨ法测得了５－取代邻菲罗啉的质子化常数以及钴（Ⅱ）与５－取代邻菲罗啉、α－氨基酸的二元、三元配合物的稳定常数．结果表明三元配合物的稳定性与５－取代邻菲罗啉的质子化常数、取代基常数均存在直线自由能关系．并用三元配合物稳定性的表征值ｌｏｇＫＭ、△ｌｏｇＫ，讨论了三元配合物的稳定性，发现钴（Ⅱ）与配体５－取代邻菲罗啉之间也存在着ｄ－ｐ反馈π键．该π健的强度对三元配合物稳定性有着显著影响．     

铁（Ⅲ）－5－硝基－邻菲啰啉配合物光还原作用的研究

无色的铁（Ⅲ）－５－硝基－邻菲　啉配合物在紫外光照射下发生光还原反应，生成红色的铁（Ⅱ）－５－硝基－邻菲　啉。实验证明，各种羧酸及表面活性剂均能影响上述反应，并对其机理作初步探讨。     

在邻菲罗啉类试剂存在下银与卟啉显色反应的研究

本文研究了三种邻菲罗啉类试剂对银（Ⅰ）与六种不同取代基卟啉试剂显色反应的影响。研究结果表明：于ｐＨ９．２时在３５～４０℃放置１０～１５ｍｉｎ，银与邻菲罗啉类试剂和卟啉试剂能形成多元络合物。我们分别测定了Ａｇ－ｐｈｅｎ－ＴＰＰＳ４、Ａｇ－ｐｈｅｎ－Ｔ（４－ＭＯＰ）ＰＳ４和Ａｇ－ｐｈｅｎ－Ｔ（４－ＨＰ）ＰＳ４体系的络合比及稳定常数，详细讨论了Ａｇ－ｐｈｅｎ－Ｔ（４－ＭＯＰ）ＰＳ４体系的光度性质，把所确     

铁（Ⅲ）—5—硝基—邻菲Luo啉配合物光还原作用的研究

无色的铁（Ⅲ）－５－硝基－邻菲Ｌｕｏ啉配合物在紫外光照射下发生光还原反应，生成红色的铁（Ⅱ）－５－硝基－邻菲Ｌｕｏ啉，实验证明，各种羧酸及表面活性剂均能影响上述反应，并对其机理作初步探讨。     

Eu3+-邻菲罗啉-苯甲酸-丙烯酸配合物与甲基丙烯酸甲酯共聚物的研究

合成了Eu^3 -邻菲罗啉（phen)－苯甲酸（BA）－丙烯酸（AA）有机稀土配合物，并确定其结构式为Eu(phen)(BA)2(AA)。将此配合物与甲基丙烯酸甲酯共聚得到一种透明且发光强度高的稀土高分子光致发光材料，并用红外光谱，紫外光谱等对其结构进行表征，证实是共聚物，而不是共混掺杂，同时检测了样品的荧光光谱，实验结果表明样品中引入邻菲罗啉，荧光强度大大提高。     

配位化学中的直线自由能关系──XX．铜（Ⅱ）－1，4，7，10－四氮杂环十三烧－11，13－二酮－α－氨基酸（5－取代邻菲罗啉）三元配合物的稳定性研究

本文采用ｐＨ法，在２５．０±０．１℃，Ｉ＝０．１ｍｏｌ·ｄｍ－３ＫＮＯ３存在条件下，测定了铜（Ⅱ）－１，４，７，１０－四氮杂环十三烷－１１，１３－二酮－α－氨基酸（５－取代邻菲罗啉）三元配合物的稳定常数，探讨了大环多胺配体与金属离子的配位能力、配位方式、及其在水溶液中铜（Ⅱ）配合物的稳定性，同时也研究了５－取代邻菲罗啉与铜（Ⅱ）之间的ｄ－ｐ反馈π键、取代基的Ｈａｍｍｅｔｔ诱导效应对三元配合物稳定性的影响．     

邻菲罗啉—氨基酮铜（Ⅱ）配合物的合成及表征

合成了三种邻菲罗啉－氨基酸酮（Ⅱ）的配合物,用元素分析,摩尔电导,ＩＲ和电子吸收光谱等手段对配合物进行表征。     

铜（Ⅱ）－4－（吡啶－2′－甲基）－1，4，7，10－四氮杂环十三烷－11，13－二酮－α－氨基酸（5－取代邻菲罗啉）三元配合物的稳定性研究

用ｐＨ法在２５．０±０．１℃，Ｉ＝０．１ｍｏｌ·ｄｍ－３ＫＮＯ３条件下，测定铜（Ⅱ）－４－（吡啶－２′－甲基）－１，４，７，１０－四氮杂环十三烷－１１，１３－二酮－α－氨基酸（５－取代邻菲罗啉）三元配合物的稳定常数；比较了带吡啶甲基二氧四胺大环配体和二氧四胺大环配体与Ｃｕ（Ⅱ）的配位能力、配位方式；研究了该三元体系配合物稳定性与配体α－氨基酸酸碱强度之间的直线自由能关系；探讨了Ｃｕ（Ⅱ）和５－取代邻菲罗啉之间的ｄ－ｐ反馈π键以及邻菲罗啉取代基Ｈａｍｍｅｔｔ诱导效应与该三元配合物稳定性之间的关系。讨论了４－（吡啶－２′－甲基）－１，４，７，１０－四氮杂环十三烷－１１，１３－二酮和４－（喹啉－２′－甲基）－１，４，７，１０－四氮杂环十三烷－１１，１３－二酮与Ｃｕｘｐｈｅｎ所形成配合物的不同空间结构及其对配合物稳定性产生的影响。     

二氰基二硫纶和邻菲罗啉二酮的镍(Ⅱ)、铜(Ⅱ)、锌(Ⅱ)配合物的合成与性质

二氰基二硫纶和邻菲罗啉二酮的镍（Ⅱ）、铜（Ⅱ）、锌（Ⅱ）配合物的合成与性质彭正合＊潘庆才ａ任小明ｂ张克立秦子斌（武汉大学化学系，武汉４３００７２；ａ南京大学配位化学国家重点实验室，南京２１００９３）关键词：二硫纶邻菲罗啉二酮镍铜锌二硫纶（ｄｉｔｈｉｏ...     

铽与1—苯基—3—甲基—4—异丁酰基吡唑啉酮—5和中性配体混配配合物…

合成了铽与１－苯基－３－甲基－４－异丁酰基吡唑啉酮和不同中性配体的４个三元配合物Ｔｂ（ＰＭＩＢＰ）３．２Ｈ２Ｏ、Ｔｂ（ｐｍｉｂｐ）３．Ｄｉｐｙ、Ｔｂ（ＰＭＩＢＰ）３、Ｐｈｅｎ和Ｔｂ（ＰＭＩＢＰ）３．２ＴＰＰＯ（Ｄｉｐｙ＝２．２’－联吡啶、Ｐｈｅｎ＝１，１０－邻菲罗啉，ＴＰＰＯ＝三苯基氧膦）。     

α-Amino acid derived enaminones and their application in the synthesis of N-protected methyl 5-substituted-4-hydroxypyrrole-3-carboxylates and other heterocycles

A new and simple synthesis of novel N-protected methyl 5-substituted-4-hydroxypyrrole-3-carboxylates, which exist in equilibrium with their 4-oxo tautomers, has been developed in two steps starting from N-protected α-amino acids. The key intermediates are enaminones, which can also be isolated, characterized, and used for the construction of other functionalized heterocycles, before they spontaneously decompose to pyrrole products. 4-Hydroxypyrroles are prone to partial aerial oxidation but can be efficiently alkylated or reduced to stable polysubstituted pyrrolidine derivatives.     

Specific intramolecular aromatic CH insertion of diazosulfonamides

The chemoselectivity in the intramolecular CH insertion of various diazosulfonamides has been experimentally studied. The results reveal that the aliphatic 1,4-, 1,5-, or 1,6-C(sp³)?H insertions of diazosulfonamides are not accessible, while the aromatic 1,5-C(sp²)?H insertion can be realized specifically by adjusting the diazo-adjacent group. In addition, the general chemoselectivities in the intramolecular CH insertions of diazosulfonyl compounds are summarized. Generally, diazosulfones undergo both aromatic 1,5-C(sp²)?H and aliphatic 1,5- and 1,6-C(sp³)?H insertions, while diazosulfonates undergo aliphatic 1,5- and 1,6-C(sp³)?H insertions. However, diazosulfonamides only undergo aromatic 1,5-C(sp²)?H insertion.     

N-Heterocyclic carbene-palladacyclic complexes: synthesis,characterization and their applications in the C-N coupling and α-arylation of ketones using aryl chlorides

N-Heterocyclic carbene-palladacyclic complexes 3 were successfully achieved in a one-pot procedure under mild conditions. The structure of 3a was unambiguously confirmed by X-ray single crystal diffraction and it was an active catalyst in the Buchwald-Hartwig amination and α-arylation of ketones even at very low catalyst loadings (0.01?mol%).     

Iodine-mediated oxidative Pictet-Spengler reaction using terminal alkyne as the 2-oxoaldehyde surrogate for the synthesis of 1-aroyl-β-carbolines and fused-nitrogen heterocycles

An efficient iodine-mediated oxidative Pictet-Spengler reaction in dimethyl sulphoxide (DMSO) using terminal alkynes as the 2-oxoaldehyde surrogate for the synthesis of aryl (9H-pyrido[3,4-b]indol-1-yl)methanones is described. The scope of the protocol includes the total synthesis of Fascaplysin, Eudistomins Y₁ and Y₂. The methodology is extended for preparing pyrrolo[1,2-a]-quinoxaline and indolo[1,5-a]quinoxaline derivatives. The utility of 1-aroyl-β-carbolines was demonstrated by performing palladium-catalyzed β-carboline directed ortho-C(sp2)-H functionalization of the phenyl ring with thiomethyl (SMe) group using DMSO as source and for accessing 4-aryl-canthin-6-ones.     

Facile synthesis of bicyclic 1-arylpyrazol-5-ones

In this Letter, we described a facile method for constructing fused bicyclic 1-arylpyrazol-5-one ring system. We employed various methylene-containing carboxylic acids as the substrates and proved that the pyrazolone ring closure requires activated methylene group in intermediate II. Accordingly, a series of structurally diversified, fused bicyclic 1-arylpyrazol-5-ones was prepared in moderate to high yields using the requisite substrates.     

Synthesis of pyrrolo[1,2-a]pyrazines and pyrazino[1,2-a]indoles by Curtius reaction in Morita-Baylis-Hillman derivatives

Synthesis of substituted pyrrolo[1,2-a]pyrazines and pyrazino[1,2-a]indoles from the Morita-Baylis-Hillman derivatives of acrylates via saponification followed by Curtius reaction is described.     

Cu0-catalysed 1,3-dipolar cycloadditions of α-amino acid derived N,N-cyclic azomethine imines to ynones

A series of 20 CuAIAC reactions between eight 4-acylamino substituted pyrazolidine-3-one-1-azomethine imines and four terminal ynones were performed using Cu⁰ as catalyst. The corresponding fluorescent cycloadducts were obtained in very high yields upon simple workup. Thus, Cu-metal turned out to be a better catalyst than Cu^I in terms of yield and ease of isolation. Availability of azomethine imines, mild reaction conditions, and simple workup enable a “click” access to libraries of densely substituted 2,3-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-ones. Reactivity of differently substituted dipoles was evaluated experimentally and by quantum chemical methods (DFT).     

Synthesis and antioxidative/anti-inflammatory activity of novel fullerene–polyamine conjugates

(E)-4-(Fullerenopyrrolidin-1-yl)-3-methylbut-2-enoic acid and its corresponding succinimidyl ester, readily obtained through Prato-type modification of C₆₀, were used for the selective N-acylation of polyamines. The thus obtained conjugates were evaluated for their antioxidative and anti-inflammatory activity and their cytotoxicity was determined. Members of this family of compounds showed interesting anti-lipid peroxidation, anti-lipoxygenase and anti-inflammatory activity and comparable cytocompatibility to spermidine.     

Copper-catalyzed multicomponent reactions of 2-iodoanilines,benzylamines, and elemental sulfur toward 2-arylbenzothiazoles

A relatively cheap copper salt-catalyzed, three-component approach providing 2-arylbenzothiazoles in good to excellent yields from readily available 2-iodoanilines, benzylamines, and sulfur powder is reported. This methodology allows preparation of various classes of 2-arylbenzothiazoles and provides a general, reliable approach.