87544-37-4Relevant articles and documents
A SPECIAL CASE OF KNOEVENAGEL CONDENSATION: BASE-CATALIZED INTRAMOLECULAR CYCLIZATION OF N1-ACYL-N3-CARBALKOXY-METHYL-THIOUREAS
Viski, P.,Zubovics, Z.,Toldy, L.,Sohar, P.,Dvortsak, P.
, p. 323 - 334 (2007/10/02)
Thioureas of type I undergo intramolecular Knoevenagel condensation under basic conditions, when the amide carbonyl and the active methylene group react to form a double bond.Previously unknown 4-imidazoline-2-thion-5-carboxylic acids have been prepared by this reaction in high yields.