Chen, Kun-Quan; Gao, Zhong-Hua; Ye, Song published the artcile< Bifunctional N-heterocyclic carbene catalyzed [3 + 4] annulation of enals with azadienes: enantioselective synthesis of benzofuroazepinones>, Formula: C9H7BrO, the main research area is benzofuroazepinone enantioselective preparation heterocyclic carbene catalyzed; aurone derived azadiene acyclic enal annulation.
The bifunctional N-heterocyclic carbene catalyzed [3 + 4] annulation of acyclic enals with aurone-derived azadienes was reported. The challenging β,β-disubstituted enals and β-monosubstituted enals reacted well to afford the corresponding benzofuroazepinones I ( R= Me, Ph, 4-ClC6H4, 3-MeC6H4, etc; Ar = Ph, 4-FC6H4, 2-thiophenyl, etc) in good yields with excellent stereoselectivities. The bifunctional carbene with a free hydroxy group is the key factor for success.
Organic Chemistry Frontiers published new progress about Azepines Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation) (benzofuroazepinones). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Formula: C9H7BrO.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary