Dehydrogenation by air: Preparation of 1
✍
Wuyi Wang; Tibor Breining; Tiechao Li; Robert Milburn; Giorgio Attardo
📂
Article
📅
1998
🏛
Elsevier Science
🌐
French
⚖ 259 KB
Naphthaquinopyrans 5a-d, 10 and 12 have been converted to benzoisochromene lib via base-promoted air oxidation. A mechanism is proposed to account for the observed results. Use of peroxide scavenger was found necessary for consistent yields, lib proved to be a versatile scaffold for diversity expans