Diethyl acetylenedicarboxylate → HCID 85815316, compound

Participants

Reaction Conditions

Reaction Steps

Into a 150-mL sealed tube, was placed 5-(4-chlorophenyl)-2H-1,3,4-oxathiazol-2-one (2 g, 9.65 mmol, 1.00 equiv), 1,4-diethyl but-2-ynedioate (3.29 g, 19.33 mmol, 2.00 equiv), 1,3-dichlorobenzene (30 mL). The resulting solution was stirred for 16 h at 148° C. The resulting mixture was concentrated under vacuum. This resulted in 1 g (31%) of 4,5-diethyl 3-(4-chlorophenyl)-1,2-thiazole-4,5-dicarboxylate as brown oil.

Provenance & Evidence