Methyl 6-[diethoxy(oxido)phosphaniumyl]oxy-3-oxo-2-prop-2-enylhept-6-enoate 在
copper diacetate 、 manganese triacetate 作用下,
以
溶剂黄146 为溶剂,
反应 26.0h,
以77%的产率得到Methyl 5-[diethoxy(oxido)phosphaniumyl]oxy-6-methylidene-2-oxobicyclo[3.2.1]octane-1-carboxylate