Efficient Construction of Cyclopenta[b]quinoline Core of Isoschizozygane Alkaloids via Intramolecular Formal Hetero-Diels−Alder Reaction
摘要:
[GRAPHICS]Acid-catalyzed condensation of aromatic amines with delta,epsilon-unsaturated aldehydes, followed by intramolecular formal hetero Diels-Alder reaction, is described as a potential route to the cyclopenta[b]quinoline substructure of isoschizozygane alkaloids. Reactions are highly diastereoselective and produce adducts with up to four contiguous stereocenters.
Efficient Construction of Cyclopenta[b]quinoline Core of Isoschizozygane Alkaloids via Intramolecular Formal Hetero-Diels−Alder Reaction
摘要:
[GRAPHICS]Acid-catalyzed condensation of aromatic amines with delta,epsilon-unsaturated aldehydes, followed by intramolecular formal hetero Diels-Alder reaction, is described as a potential route to the cyclopenta[b]quinoline substructure of isoschizozygane alkaloids. Reactions are highly diastereoselective and produce adducts with up to four contiguous stereocenters.