丙酮基膦酸二乙酯 、
(3aS,4S,6R,6aR)-tert-butyl 4-formyl-6-[(2-methoxypropan-2-yloxy)methyl]-2,2-dimethyldihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
反应 18.0h,
以79%的产率得到(3aR,4R,6R,6aS)-tert-butyl 4-(hydroxymethyl)-2,2-dimethyl-6-[(E)-3-oxobut-1-enyl]dihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate