1117-71-1
4-溴巴豆酸甲酯
+
603-35-0
三苯基膦
→
65866-00-4
Methyl (2E)-4-(triphenylphosphoranylidene)-2-butenoate
72967-11-4
[(Z)-4-methoxy-4-oxobut-2-enyl]-triphenylphosphanium,bromide