biostudies-literatureUnknown10(64)Awatani ANucleophilic substitution reactions of cyanuric chloride with a series of β-dicarbonyls give triply β-dicarbonyl-embedded 1,3,5-triazines. Their subsequent but spontaneous tautomeric transformation leads to circularly linked, intramolecular, multi-hydrogen bonding networks. Their structural elucidation by X-ray crystallography showed elongated double bonds and shortened single bonds. This is likely due to a resonance hybrid formed <i>via</i> tautomerisation and simultaneous proton transfer.RSC advances39033-39036https://www.ebi.ac.uk/biostudies/studies/S-EPMC9057380biostudies-literatureCircular linkage of intramolecular multi-hydrogen bonding frameworks through nucleophilic substitutions of β-dicarbonyls onto cyanuric chloride and subsequent tautomerisation.PMC9057380Awatani ASuzuki MfalseCircular linkage of intramolecular multi-hydrogen bonding frameworks through nucleophilic substitutions of β-dicarbonyls onto cyanuric chloride and subsequent tautomerisation.Nucleophilic substitution reactions of cyanuric chloride with a series of β-dicarbonyls give triply β-dicarbonyl-embedded 1,3,5-triazines. Their subsequent but spontaneous tautomeric transformation leads to circularly linked, intramolecular, multi-hydrogen bonding networks. Their structural elucidation by X-ray crystallography showed elongated double bonds and shortened single bonds. This is likely due to a resonance hybrid formed <i>via</i> tautomerisation and simultaneous proton transfer.2020-01-01T00:00:00Z2020 Oct2025-04-19T09:21:09.034Z2025-04-19T09:21:09.034ZS-EPMC90573803551841110.1039/d0ra07677e