(E)-ethyl 3-(2-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)acrylate 在
钯 氢气 作用下,
以
乙醇 为溶剂,
反应 18.0h,
以to give the title compound as a white solid (62 mg, 92% yield)的产率得到ethyl 3-(2-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)propanoate