乙醇 、
9,10-Dioxo-9,10-dihydro-anthracene-2-carboxylic acid 4-hydroxy-5-[1-phenyl-meth-(E)-ylidene]-cyclodeca-2,6-diynyl ester 在
camphor-10-sulfonic acid 作用下,
以
二氯甲烷 为溶剂,
反应 26.0h,
以47%的产率得到9,10-Dioxo-9,10-dihydro-anthracene-2-carboxylic acid (E)-5-(ethoxy-phenyl-methyl)-cyclodec-4-ene-2,6-diynyl ester