129410-84-0Relevant articles and documents
On the Reaction of N-Vinyliminophosphoranes. Part 11. Convenient Synthesis of 9H-Cycloheptapyridines and Pyridotropones
Nitta, Makoto,Iino, Yukio
, p. 435 - 440 (2007/10/02)
Thermal reaction of tributyl(cyclohepta-1,3,5-trienylimino)phosphorane with α,β-unsaturated ketones led to a Michael-type C-C bond formation and subsequent aza-Wittig reaction to give 9H-cycloheptapyridine derivatives in good yields.The 9H-cycloheptapyridine derivatives were oxidized conveniently by t-butyl hydroperoxide in the presence of catalytic chromium trioxide to give two or three isomers of the pyridotropones in good to moderate combined yields.
