Diethyl Oxalate → HCID 19100726, compound

Participants

Reaction Steps

Reaction of di-t-butyl 4-cyano-5-(methylthio)thiophene-2,3-dicarbamate (1.0 g, 2.6 mmol) and diethyl oxalate (12 ml, 88 mmol) in acetic acid (15 ml) was performed following the procedure outlined in example 1 (Method D). Yield 0.45 g (72%) of the title compound. M.p. >225° C. MS (70 eV): m/z 239 (694, M), 224 (8), 211 (4), 196 (100), 162 (3), 136 (10), 109 (50), 94 (20), 82 (27), 70 (27).

Provenance & Evidence