Merging Pyrrole with Boron into Versatile Di(2-pyrryl)borane Building Blocks: π-Extension, Polymerization, and Coordination.

ABSTRACT: Conjugated di(hetaryl)boranes-particularly those of thiophene, but also of furan-have recently proven to be extremely useful building blocks for organic optoelectronic materials. The importance of the combination of boron with pyrrole, on the other hand, becomes particularly apparent when considering the well-known, versatile BODIPY dyes, in which the boron atom is tetracoordinated. However, synergistic effects of combining pyrrole with tricoordinate boron have been hardly exploited to date, which is probably due to synthetic challenges associated with the special reactivity of this five-membered heterocycle. Herein, a high-yield, gram-scale synthesis of two di(2-pyrryl)boranes is presented, including the previously elusive unprotected NH derivative. Their versatility is demonstrated by th

SUBMITTER: Gobel D 

PROVIDER: S-EPMC12790361 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature