1-(3,4-dimethoxybenzoyl)-1-(2-formyl-4,5-dimethoxyphenyl)-2-[2-(3,4-dimethoxyphenyl)-4,5-dimethoxyphenyl]ethylene 在
氢氧化钾 作用下,
以
1,4-二氧六环 为溶剂,
反应 0.5h,
以90%的产率得到2,3,9,10-tetramethoxy-5-hydroxy-6α-(3,4-dimethoxyphenyl)-7-(3,4-dimethoxybenzoyl)-5,6,7,15-tetrahydro-6-oxoniabenz
anthracene