6-acetyloxymethyl-2,2-dimethyl-5-phenyl-2H,4H-1,3-dioxin-4-one 、
methylene-(1-methyl-1-phenyl-ethyl)-amine 在
silica gel 作用下,
以
邻二甲苯 为溶剂,
反应 0.5h,
以to afford the captioned compound (yield 72%)的产率得到6-acetyloxymethyl-3-(1-methyl-1-phenylethyl)-5-phenyl-2,3-dihydro-4H-1,3-oxazin-4-one