121792-92-5
3-(2,5-dibromothiophen-3-yl)propanoyl chloride
→
~63%
121792-93-6
2,3-dibromo-4H-cyclopenta[b]thiophen-6(5H)-one
121792-91-4
[2,5-Dibrom-3-thenyl]-malonsaeurediethylester