76979-91-4Relevant academic research and scientific papers
189. Heterocyclic Spiro-naphthalenones. Part VI. Some Reactions with Spiro-1,5'-dione Leading to Various 6-, 7-, 8-, 9-, 10- and 11-membered Azacycloalkanes
Berney, Daniel,Schuh, Karlheinz
, p. 1785 - 1791 (1980)
The spirolactam 5 was reduced to the spiro 7 which was N-aralkylated to give 9 and 17.Cyclization of 9 gave the phenanthridines 10 and 11; similarly, 17 afforded the 7- and 8-membered heterocycles 18 and 19.Compounds 10, 18 and 19
