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- Title
Divergent Synthesis of 5,7-Diazaullazines Derivatives through a Combination of Cycloisomerization with Povarov or Alkyne–Carbonyl Metathesis.
- Authors
Polkaehn, Jonas; Ehlers, Peter; Villinger, Alexander; Langer, Peter
- Abstract
Ullazines and their π-expanded derivatives have gained much attention as active components in various applications, such as in organic photovoltaic cells or as photosensitizers for CO2 photoreduction. Here, we report the divergent synthesis of functionalized diazaullazines by means of two different domino-reactions consisting of either a Povarov/cycloisomerization or alkyne–carbonyl metathesis/cycloisomerization protocol. The corresponding quinolino-diazaullazine and benzoyl-diazaullazine derivatives were obtained in moderate to good yields. Their optical and electronic properties were studied and compared to related, literature-known compounds to obtain insights into the impact of nitrogen doping and π-expansion.
- Subjects
CYCLOISOMERIZATION; PHOTOVOLTAIC cells; OPTICAL properties; PHOTOSENSITIZERS; PHOTOREDUCTION
- Publication
Molecules, 2024, Vol 29, Issue 9, p2159
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules29092159