3-(3,4-Dimethoxy-phenyl)-5-hydroxy-10-(3-hydroxy-3-methyl-butyl)-8,8-dimethyl-7,8-dihydro-6H-pyrano[3,2-g]chromen-4-one 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
苯 为溶剂,
反应 1.0h,
以15 mg的产率得到3-(3,4-Dimethoxy-phenyl)-5-hydroxy-10-(3-hydroxy-3-methyl-butyl)-8,8-dimethyl-8H-pyrano[3,2-g]chromen-4-one