The reaction of 5,6-dihydro-4H-1,2-oxazines, which are derived from α-bromooximes and enamines, with ironcarbonylcomplexes such as Fe3(CO)12 and (C2H5)3NH[HFe3(CO)11] gives pyrrole derivatives in high yields, accompaning deoxygenation from the oxazines. The pyrroles are also obtained by an one-pot reaction using α-bromooximes, enamines and ironcarbonyls.
Manganese(III)-Catalyzed Formal [3+2] Annulation of Vinyl Azides and β-Keto Acids for Synthesis of Pyrroles
作者:Shunsuke Chiba、Eileen Ng、Yi-Feng Wang
DOI:10.1055/s-0030-1259920
日期:2011.4
Manganese(III)-catalyzed formal [3+2] annnulation of vinylazides and β-keto acids has been developed for the synthesis of substituted NH pyrroles with a wide range of substituents.