Generation and Cycloadditions of 2-(N-acylamino)-1-thia-1,3-dienes part III: Control of diastereoselectivity using homochiral auxiliaries

Article abstract of DOI:10.1016/S0040-4020(98)00067-2

Activated 2-(N-acylamino)-1-thia-1,3-dienes undergo efficient diastereoselective Diels-Alder cycloadditions giving access to thiopyrans of high optical purity. By variation of the position and nature of the chiral auxiliaries we have been able to induce a