Front Cover Picture: A 6π Azaelectrocyclization Strategy towards the 1,5,9‐Triazacoronenes (Adv. Synth. Catal. 8/2020)

The front cover picture, provided by Jun-Fa Wei et al., shows the instance of two aromatic double bonds and an imine double bond involved in a thermal 6π-azaelectrocyclization, leading to triazacoronenes (TACs) under non-acidic conditions. This method provides an effective complement to the previous methods and, meanwhile, represents a new synthesis tool for the TACs family. The picture depicts the synergetic cyclization process of π electrons to yield the products. Further details of this work can be found in the communication on pages 1651–1656 (Y.-X. Sun, X.-G. Wang, G.-D. Shen, T. Yang, Y.-H. Yang, J. Li, M.-Y. Yang, H.-M. Sun, J.-F. Wei, Adv. Synth. Catal. 2020, 362, 1651–1656; DOI:10.1002/adsc.201901433).