Facile synthesis of fluorescent hetero[8]circulene analogues with tunable solubilities and optical properties.

ABSTRACT: Hetero[8]circulenes are an interesting class of polycyclic heteroaromatic molecules having rigid and planar structures, which are promising in light of their potential applications for OLEDs, OFETs and so forth. Although their synthetic methods have been developed in some specific cases, a facile synthetic protocol of novel hetero[8]circulenes with tunable properties is highly desirable. We herein report the unexpected formation of methoxy-substituted quasi-aza[8]circulene and its conversion into unprecedented triazaoxa[8]circulene. The structures and optical properties were comparatively studied. Remarkably, triazaoxa[8]circulene is highly soluble in THF, acetone and DMSO mainly because of effective hydrogen-bonding of the NH moieties to these solvents. Their highly soluble nature in vari

SUBMITTER: Matsuo Y 

PROVIDER: S-EPMC7012041 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature