Synthesis of 3-phenyl-2,8-dihydropyrano 2,3-f chromene derivatives

摘要

The present invention relates to a method of synthesizing 3-phenyl-2,8-dihydropyrano-[2,3-f] chromene derivatives useful for the synthesis of pyranochromenylphenol derivatives, wherein the derivatives are used to provide 3-phenyl-2,3,4,8,9,10-hexahydropyranose A 3-F] chromene derivative can be effectively produced.