Sam Yruegas, Jesse J. Martinez and Caleb D. Martin
Chem. Commun., 2018,54, 6808-6811
DOI:
10.1039/C8CC01529E,
Communication
The reactions of 9-borafluorenes with organic azides result in either the insertion of the α-nitrogen and elimination of N2 or the insertion of the γ-nitrogen to generate the corresponding phenanthrene analogues with boron and nitrogen in the 9- and 10-positions, respectively.