Thermal cyclisation of aromatic nitrocompounds

✍ Scribed by H. Suschitzky; M.E. Sutton

• Publisher: Elsevier Science
• Year: 1967
• Tongue: French
• Weight: 262 KB
• Volume: 8
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)89755-0

✦ Synopsis

Intramolecular cyclisation of suitably constituted nitrocompounds to give N_-heterocycles has been effected with various reducing agents such as metal oxalates (l), triethyl phosphite (2) and iron pentacarbonyl (3). We have, however, shown that such ring-closures can be carried out by simply heating the appropriate nitrocompound in sand (4) and other workers have subsequently reported that pyrOlYSiS of certain nitrocompounds in cii.phenyl