2-(2,2-dimethyl-6-thioxo-5-trimethylsilanylmethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyrrol-4-yl)-N-methoxy-N-methyl acetamide 、
溴丁酮 在
三乙胺 、
三苯基膦 作用下,
以
乙腈 为溶剂,
反应 23.5h,
以81%的产率得到2-[2,2-dimethyl-6-(2-oxo-butylidene)-5-trimethylsilanylmethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyrrol-4-yl]-N-methoxy-N-methyl acetamide