Steric Control of Chemoselectivity in the Reaction of Ynamine Esters with Heterodienes

Article abstract of DOI:10.1016/S0040-4039(00)92346-3

Ynamine esters undergo regioselective formal hetero-Diels-Alder reactions with α,β-unsaturated-1,3-dicarbonyl compounds yielding functionalised pyrans.The chemoselectvity of the reaction appears to be governed by steric factors.Key Words: Regioselective;