N-Tosyl-6-alkoxy-2,6-dihydro-1H-pyridin-3-ones 1 were found to react stereoselectively with various nucleophiles under the influence of BF3-OEt2 yielding 2,6-cis-disubstituted dihydropyridinones.
N-
甲苯磺酰基-6-烷氧基-2,6-二氢-1 H-
吡啶3-3-酮1在BF 3 -OEt 2的影响下与各种亲核试剂立体选择反应,生成2,6-顺式-二取代的
二氢吡啶酮。