Bromomethyl (5,8-dioxo-5,8-dihydrobenzo[2,3-C]pyran-3-yl) ketone 、
1-乙酰氧基-1,3-丁二烯 在
氩 、
toluene-ethyl acetate 作用下,
以
甲苯 为溶剂,
反应 18.0h,
以The titled orange compound was isolated (192 mg) in 62% yield的产率得到Bromomethyl (5,10-dioxo-5,10-dihydronaphtho[2,3-C]pyran-3-yl) Ketone