N-Heterocyclic Carbene Induced Cycloaddition Reactions of Indazoles with Acetylenes To Form a New Ring System

Abnormal reactions of 2-methoxy-4,9-dime

Abnormal reactions of 2-methoxy-4,9-dimethyl-1-nitroacridine with selenous acid and selenium(IV) oxide. Synthesis of 1H-selenopheno[2,3,4-k,l]acridine-1-one: A new seleno-containing ring system

✍ Oleg S. Radchenko; Elena N. Sigida; Nadezhda N. Balaneva; Pavel S. Dmitrenok; Vy 📂 Article 📅 2010 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 150 KB

## Abstract Unusual course of the reaction was revealed on the oxidation of functionally substituted acridine containing the activated methyl groups by well‐known oxidants, such as selenous acid and selenium(IV) oxide. Treatment of 2‐methoxy‐4,9‐dimethyl‐1‐nitroacridine (**5**) with an excess of H~