The Vilsmeier Reaction in the Synthesis of 3-Substituted [1]Benzopyranol[4,3-b]pyridin-5-ones. An Unusual Pyridine Ring Closure
D. Heber, I. C. Ivanov, S. K. Karagiosov
J. Het. Chem. 1995, Vol. 32, 505
Код: Выделить всё
https://www.jhetchem.com/cd2html.php?file=19950505