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The Journal of organic chemistry

Microwave-Assisted Synthesis of Heteroleptic Ir(III)(+) Polypyridyl Complexes.


PMID 27301646

Abstract

We report a rapid, one-pot, operationally simple, and scalable preparation of valuable cationic heteroleptic iridium(III) polypyridyl photosensitizers. This method takes advantage of two consecutive microwave irradiation steps in the same reactor vial, avoiding the need for additional reaction purifications. A number of known heteroleptic iridium(III) complexes are prepared in up to 96% yield. Notably, this method is demonstrated to provide the synthetically versatile photosensitizer [Ir(ppy)2(dtbbpy)]PF6 in >1 g quantities in less than 5 h of bench time. We envision this method will help accelerate future developments in visible-light-dependent chemistry.

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901368
[Ir(dFppy)2(dtbbpy)]PF6
C40H36F10IrN4P