Wavelength selective photoactivated autocatalytic oxidation of 5,12-dihydrobenzo[b]phenazine and its application in metal-free synthesis

Abstract

We describe the photoactivated autocatalytic oxidation of 5,12-dihydrobenzo[b]phenazine to benzo[b]phenazine with oxygen from the air as the oxidant and develop a green synthesis way of metal impurity-free BP or other similar products.

NaCl Micro-Crystal as a Molecular Mold for Enhanced Synthesis of Planar Phenazines and Their Applications on Chemosensing and a Full-Color Fluorescent Material

“…Generally, the synthesis of multi-color fluorescent molecules is achieved by changing the substituents attached to the scaffold, while the fluorescent color is also affected by other factors, such as the polarity or acid-base properties of solvents and molecular packing . Phenazines, as a widely studied photoelectric material, have aroused widespread interest for antibiotics, organic field effect transistors, organic light-emitting diodes, photocatalysis, organic solar cells, and biochemical analysis. , There have been reports on the preparation of multi-emission series of fluorescent molecules based on the phenazine skeleton. , However, phenazines that emit blue fluorescence are rarely reported due to their large conjugated structure. The lack of blue, one of the three primary colors, limits the preparation of full emission fluorescent materials based on the phenazine skeleton.…”