SYNTHESIS OF BORON DIPYRROMETHENES WITH LASER PROPERTIES

摘要

A family of 3 members of 8-alkyl boron dipyrromethenes (I, II and III) has been developed, obtained by means of Liebeskind-Srogl coupling with alkenylboronic acids, followed by a catalytic hydrogenation of the alkenyl using hydrogen on palladium, and characterised by high laser efficiency with emission in the green region of the electromagnetic radiation spectrum. These novel derivatives are characterised by a laser efficiency almost double that of other commercial dyes and a much greater photostability.