芳香性概念的最新进展

Recent Progress on the Concepts of Aromaticity

芳香性是有机化学领域非常重要的概念,这一概念可追溯至1825年法拉第发现苯和1865年凯库勒提出著名的单双键交替环状结构。时至今日,芳香性的内涵与外延仍在不断扩展。目前反休克尔规则的例子不断涌现,包括莫比乌斯芳香性规则和贝尔德规则,立体芳香性、全局芳香性等新的芳香性概念逐步提出。本文重点介绍了芳香性的实验和理论判据并通过卟啉纳米环、大环多自由基、多环共轭体系等介绍几种新的芳香性体系,并阐述了未来可能的应用。

Aromaticity is a key concept in organic chemistry.It dated back to Faraday’s discovery of benzene in 1825 and Kekulé’s famous alternating-double-bond structure of 1865,and is still evolving in recent years.At present,some examples of anti-Hückel’s rule have been proposed gradually,including M?bius aromaticity rule and Baird’s rule.In particular,scientists put forward new concepts of 3 D aromaticity and global aromaticity.This review not only introduces the experimental and theoretical criteria of aromaticity,but also summarizes several new aromaticity systems through porphyrin nanoring,macrocyclic polyradical and polycyclicπ-conjugated system.In addition,it covers the applications of aromaticity and briefly discussed recent progress on the concepts of aromaticity.