9-(N,N-diethylcarbamoyloxy)-3-methyl-3-(4-methyl-3-pentenyl)-8-trimethylstannyl-3H-naphtho[2,1-b]pyran 、
1,4-dihydro-6-methoxy-3-[9-(methoxymethoxy)-3-methyl-3-(4-methyl-3-pentenyl)-3H-naphtho[2,1-b]pyran-8-yl]-2-[(trifluoromethanesulfonyl)oxy]-1,4-naphthalenedione 在
四(三苯基膦)钯 、
lithium chloride 作用下,
以
1,4-二氧六环 为溶剂,
反应 13.0h,
以86%的产率得到1,4-dihydro-6-methoxy-3-[9-(methoxymethoxy)-3-methyl-3-(4-methyl-3-pentenyl)-3H-naphtho[2,1-b]pyran-8-yl]-2-[9-(N,N-diethylcarbamoyloxy)-3-methyl-3-(4-methyl-3-pentenyl)-3H-naphtho[2,1-b]pyran-8-yl]-1,4-naphthalenedione