A mild synthetic route to α-nitroso diaryl pyrroles.

A new synthetic method to access α-nitroso pyrroles is presented. This method utilises the nitrosonium salt NOBF, enabling short reaction times (<10 minutes) and avoiding the harsh acidic conditions usually associated with pyrrole nitrosation. Application of this procedure to diarylated pyrroles yielded several novel nitroso-pyrroles.

Synthesis and characterization of pyrrolyldipyrrin F-BODIPYs.

A series of synthetic analogs of the tripyrrolic natural product prodigiosin were complexed with boron trifluoride to generate the corresponding F-BODIPYs. The maximum wavelengths of absorption and emission of the pyrrolyldipyrrin F-BODIPYs were tuned through variation of the substituents about the pyrrolyldipyrrinato core. The limited variation of substituents on the C-ring did not significantly affect absorption and emission.