Carbon Tetrachloride → HCID 19850801, compound

Participants

Reaction Steps

A stirred solution of ethyl 4-methyl-2-(N1 -methylureido)-thiophene-3-carboxylate (2,3 g), triphenylphosphine (2,62 g), triethylamine (1.4 ml) and carbontetrachloride (5 ml) in CH2Cl2 (50 ml) was refluxed for 30 min, whereafter it was evaporated in vacuo. The oily residue was extracted twice with boiling petrol ether. The combined petrol ether solutions were evaporated to give N-methyl N'-(3-carbomethoxy-4-methyl-thien-2-yl)-carbodiimide as an oil. The presence of the carbodiimide moeity was confirmed by an IR absorbtion band at 2140 cm-1.

Provenance & Evidence