dimethyl (1-naphthylcarbonyl)phosphonate 、 4-oxo-5,6-benzo-1,3,2-dioxaphosphorinan-2-yl isocyanate 以
苯 为溶剂,
反应 8.0h,
以60%的产率得到(3-Naphthalen-1-yl-1,3a,9-trioxo-3,3a-dihydro-9H-2,4-dioxa-9a-aza-3aλ
5-phospha-cyclopenta[b]naphthalen-3-yl)-phosphonic acid dimethyl ester