541-41-3
氯甲酸乙酯
+
2028-63-9
3-丁炔-2-醇
→
~71%
72036-35-2
ethyl 4-hydroxypent-2-ynoate
75-07-0
乙醛
623-47-2
丙炔酸乙酯
10150-92-2
ethyl 4-hydroxypent-2-enoate