Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSynthese von β-Keto-amidinen durch Sulfidkontraktion von Acylmethyl-isothioharnstoffen.AuthorsHeffe, Wilhelm; Balsiger, Rudolf W.; Thoma, KlausAbstractN-Substituted β-ketoamidines are obtained readily by condensing N-substituted thioureas 6 with α-halogenoketones 5 and extruding the sulfur from the resulting acylmethylisothiourea 7 with triphenylphosphine (sulfide contraction).PublicationHelvetica Chimica Acta, 1974, Vol 57, Issue 4, p1242ISSN0018-019XPublication typeArticleDOI10.1002/hlca.19740570435