Clayden, Jonathan Synthesis and stacked conformations of symmetrical and unsymmetrical oligo-ureas of metaphenylenediamine. [electronic resource] - The Journal of organic chemistry Mar 2007 - 2302-8 p. digital Publication Type: Journal Article ISSN: 0022-3263 Standard No.: 10.1021/jo061989w doi Subjects--Topical Terms: MethylationModels, MolecularMolecular ConformationPhenylenediamines--chemistryStereoisomerismUrea--chemical synthesis