Ethyl 3-(6,7,8,9-tetrahydro-5-hydroxy-1,2-dimethoxy-6-methoxyimino-5H-benzo[7]annulen-5-yl)propiolate 在
platinum(IV) oxide 氢气 、
溶剂黄146 作用下,
以
乙醇 为溶剂,
反应 96.0h,
以90%的产率得到Ethyl 3-(6,7,8,9-tetrahydro-5-hydroxy-1,2-dimethoxy-6-methoxyimino-5H-benzo[7]annulen-5-yl)propionate