188290-36-0
Thiophene(SIV)
+
1379474-24-4
→
~82%
63196-84-9
dimethyl 2-thiophen-1-ylidenepropanedioate
34297-79-5
dibenzothiophenium bismethoxycarbonylmethylide
~48%
66946-94-9
dimethyl 2-thiophen-2-ylpropanedioate