Antiaromaticity to Aromaticity: From Boroles to 1,2-Azaborinines by Ring Expansion with Azides

Invited for the cover of this issue is the group of Holger Braunschweig at the Julius‐Maximilians‐Universität Würzburg (Germany). The image depicts the synthesis of 1,2‐azaborinines by a ring‐expansion reaction of boroles with azides. Read the full text of the article at 10.1002/chem.201403101. “Due to boron′s extraordinary chemical, physical, and electronic properties, interest in incorporating this element into molecular organic materials is growing.” Read more about the story behind the cover in the Cover Profile and about the research itself on page 9858 ff. (DOI: 10.1002/chem.201403101). ((DOI of Research article))