tert-butyl (E)-4-{3-[4-(3-cyanophenyl)-2-hydroxy-3-buten-1-yl]-4-nitrophenoxy}piperidine-1-carboxylate 在
pyridinium chlorochromate 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到tert-butyl (E)-4-{3-[4-(3-cyanophenyl)-2-oxo-3-buten-1-yl]-4-nitrophenoxy}piperidine-1-carboxylate