Abstract The hydrochloride of 2-methoxy-6-chloro-9-[(δ- diethylamino-α-methyl-butyl)amino]-acridine (Atebrine®) (1) reacts under the influence of UV light (λ > 290 nm) in water via N -C-clearage intermolecular to 2-methoxy-6-chloro-9-am ino-acridine (2) and 2-methoxy-6-chloro-acridine (3). Their formation is directly depend of water and partial pressure of oxygen. The reaction is controlled probably by reactive oxygen species (1O2, ·OH and ·OOH), which can be formed in an energy or electron transfer process between singlet-excited Atebrine® (1) and water/oxygen mixture.
Four benzodehydroannulene subunits were implemented on a dibenzoquinoxalinopoprhyrazine core using efficient palladium-mediated alkyne coupling and oxidative acetylene coupling on phenanthrene dione precursors. Despite the significant amount of strain in system, as evidenced by X-ray analysis of an immediate precursor, porphyrazine assembly leads to an extended model for N-doped graphyne with photosensitizing properties.
Die Photoreaktion von Naphthalin (I) mit Stickstoffdioxid in CCl4 (II) liefert die Verbindungen (III)‐(VII) sowie Naphthochinon (VIII) und Phthalsäureanhydrid (IX).
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