44826-45-1
3-sulfopropanoic acid
→
~81%
5961-88-6
2,2-dioxooxathiolan-5-one
802294-64-0
C2H5CO2H
~59%
7719-09-7
氯化亚砜
+
598-78-7
2-氯丙酸
107-96-0
3-巯基丙酸