Total Synthesis of Sedum Alkaloids via Catalyst Controlled aza-Cope Rearrangement and Hydroformylation with Formaldehyde
作者:Hong Ren、William D. Wulff
DOI:10.1021/ol302769r
日期:2013.1.18
The catalytic asymmetric aminoallylation of chiral aldehydes is developed as a new method for the catalyst controlled synthesis of syn- and anti-1,3-aminoalcohols. This methodology is highlighted in the synthesis of the sedum alkaloids (+)-sedridine and (+)-allosedridine both of which have their final carbon incorporated during closure of the piperidine ring via a hydroformylation with formaldehyde.
Hydroformylation of Alkenylamines. Concise Approaches toward Piperidines, Quinolizidines, and Related Alkaloids
作者:Etienne Airiau、Nicolas Girard、Marianna Pizzeti、Jessica Salvadori、Maurizio Taddei、André Mann
DOI:10.1021/jo101776y
日期:2010.12.17
Linear hydroformylation of N-protected allyl- or homoallylamines (cyclohydrocarbonylation: CHC), followed by a reductive amination constitute the two key steps toward convenient routes to aza-heterocycles.