54655-07-1
三甲基硅烷基乙炔锂
+
5231-87-8
方酸二乙酯
→
~86%
109364-34-3
2,3-diethoxy-4-hydroxy-4-(2-trimethylsilylethynyl)cyclobut-2-en-1-one
1066-54-2
三甲基乙炔基硅
109364-35-4
3-ethoxy-4-(2-trimethylsilylethynyl)cyclobut-3-ene-1,2-dione