Craig‐Hückel Hybrid Aromatic Metalla‐dehydro[11]annulenes Constructed by a Formal [10+1] Cycloaddition Reaction

Author:

Ruan Kaidong12,Lu Zhengyu2,Rao Ren12,Liu Jiao‐Jiao2,Chen Dafa2,Xia Haiping12ORCID

Affiliation:

1. State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China

2. Shenzhen Grubbs Institute Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China

Abstract

AbstractAromatic metalla‐annulenes are important aromatic compounds, research into which has been mainly concentrated on metal‐benzenes and their lower homologues. Reports on their superior homologs are rare, and this has greatly limited the systematic study of their properties. In this work, a series of osma‐dehydro[11]annulenes with good air and thermal stability were prepared in high yields through a simple [10+1] strategy, by incorporating a metal fragment into conjugated ten‐carbon chains in a one‐pot reaction. They are the first monometallic aromatic metalla‐[n]annulenes with the ring size larger than 6, and their Craig‐Hückel hybrid aromaticity is supported by various physical and computational parameters. Besides, these complexes show versatile reactivities, not only giving further evidence for their aromaticity, but also demonstrating their physical and chemical properties can easily be regulated. This work enriches the metalla‐aromatic chemistry, and provides a new avenue for the synthesis of large metalla‐annulenes with different ring sizes.

Funder

National Natural Science Foundation of China

Guangdong Provincial Key Laboratory Of Catalysis

Publisher

Wiley

Subject

General Medicine

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