Inverted porphyrins and expanded porphyrins: An overview

Inverted porphyrins and expanded porphyrins: An overview
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倒置卟啉和扩展卟啉:概述

DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
T. K. Chandrashekar
T. K. Chandrashekar
中科院分区:
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文献类型:
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作者:
S. Pushpan;S. Venkatraman;V. Anand;J. Sankar;Harapriya Rath;T. K. Chandrashekar

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在过去的100年或更长的时间里,卟啉和金属卟啉因其在生物学中的广泛应用而受到化学家的关注。最近,合成的卟啉和类似卟啉的大环因其作为光动力疗法的增敏剂、磁共振成像对比剂和较大金属离子的络合剂以及它们的阴离子结合能力而引起了研究人员的关注。通过增加吡咯环之间的共轭双键数目或增加杂环数目,可以增加卟啉环上的π-电子数目。因此,最近的文献报道了22个π皂啉,26个π红宝石,30个π七氢化合物,34个π八氢化合物和高环聚吡咯类似物,包括40个π,48个π,π,80个π和96个π系统。这些大旋回显示了丰富的结构多样性,其中发现了正常和不同类型的倒置结构。在这篇综述中,试图收集到2001年12月之前报道的倒置和扩大的卟啉的文献。由于芳基扩展卟啉具有形成倒置结构和非倒置结构的倾向,因此芳基扩展卟啉受到了越来越多的重视。
Porphyrins and metallopophyrins have attracted the attention of chemists for the past 100 years or more owing to their widespread involvement in biology. More recently, synthetic porphyrins and porphyrin-like macrocycles have attracted the attention of researchers due to their diverse applications as sensitizers for photodynamic therapy, MRI contrasting agents, and complexing agents for larger metal ions and also for their anion binding abilities. The number of π-electrons in the porphyrin ring can be increased either by increasing the numberof conjugated double bonds between the pyrrole rings or by increasing the number of heterocyclic rings. Thus, 22π sapphyrins, 26π rubyrins, 30π heptaphyrins, 34π octaphyrins and higher cyclic polypyrrole analogues containing 40π, 48π, 64π, 80π and 96π systems have recently been reported in the literature. These macrocycles show rich structural diversity where normal and different kinds of inverted structures have been identified. In this review, an attempt has been made to collect the literature of the inverted porphyrins and expanded porphyrins reported until December 2001. Since themeso aryl expanded porphyrins have tendency to form both inverted and non-inverted structures more emphasis has been given tomeso aryl expanded porphyrins.
DOI: 10.1021/ol9910114
发表时间: 1999-11-04
期刊: ORGANIC LETTERS
影响因子: 5.2
作者:
Geier, GR;Haynes, DM;Lindsey, JS
通讯作者: Lindsey, JS