(1'R,2'R,4'S)-2'-ethynoxy-1',7',7'-trimethylspiro[1,3-dihydroindene-2,3'-bicyclo[2.2.1]heptane] 在
zirconocene hydrochloride 、
copper(l) chloride 作用下,
以
四氢呋喃 为溶剂,
以25%的产率得到(1'R,2'R,4'S)-1',7',7'-trimethyl-2'-[(1E,3E)-4-[(1'R,2'R,4'S)-1',7',7'-trimethylspiro[1,3-dihydroindene-2,3'-bicyclo[2.2.1]heptane]-2'-yl]oxybuta-1,3-dienoxy]spiro[1,3-dihydroindene-2,3'-bicyclo[2.2.1]heptane]