Pyrrolopyrrole aza-BODIPY analogues: a facile synthesis and intense fluorescence.

Pyrrolopyrrole aza-BODIPY analogues: a facile synthesis and intense fluorescence.

Chemical communications (Cambridge, England) (2013-01-23)

Soji Shimizu, Taku Iino, Yasuyuki Araki, Nagao Kobayashi

ABSTRACT

Pyrrolopyrrole aza-BODIPY analogues were synthesized from diketopyrrolopyrrole and heteroaromatic amines in the presence of titanium tetrachloride. These novel compounds exhibit intense absorption in the visible region and strong emission with high fluorescence quantum yields greater than 0.8.

MATERIALS

Product Number

Brand

Product Description

249866

Sigma-Aldrich

Titanium(IV) chloride solution, 1.0 M in methylene chloride

404985

Sigma-Aldrich

Titanium(IV) chloride solution, 0.09 M in 20% HCl