51865-32-8
3-bromocyclopent-2-en-1-one
+
540-63-6
1,2-乙二硫醇
→
~76%
81770-78-7
1,4,8,11-tetrathiadispiro[4.1.47.25]tridecane
81770-77-6
8-bromo-1,4-dithiaspiro[4.4]non-8-ene
3859-41-4
1,3-环戊二酮