Methyl 10-methoxy-3-methyl-4-oxatricyclo[6.4.0.03,5]dodeca-1(8),6,9,11-tetraene-5-carboxylate 在
copper(II) hexafluoroacetylacetonate 作用下,
以
甲苯 为溶剂,
反应 0.5h,
以81%的产率得到methyl (1S,9S)-4-methoxy-9-methyl-12-oxatricyclo[7.2.1.02,7]dodeca-2(7),3,5,10-tetraene-10-carboxylate