ethyl 2-acetyl-6-(hydroxymethyl)-2-(prop-2-ynyl)hept-6-en-4-ynoate 在
silver hexafluoroantimonate 、
[(tert-butylamino)(diethylamino)methylidene]gold(I) chloride 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以64%的产率得到ethyl 2-acetyl-5-hydroxy-6-methyl-2,3-dihydro-1H-indene-2-carboxylate