{4-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-l,3-dihydro-isobenzofuran-5-yl]-2-methyl-but-2-enyl}-phosphonic acid 、
丙酮肟 在
N,N'-二环己基碳二亚胺 作用下,
以
吡啶 为溶剂,
反应 0.67h,
以94%的产率得到{4-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yI]-2-methyl-but-2-enyI}-phosphonic acid propan-2-one oxime ester anhydride