The N-carbamoyl squaramide dimer: a compact, strongly associated H-bonding motif

Abstract

N-Carbamoyl squaramides 3, readily available from dialkyl squarate 5, form hydrogen-bonded dimers in solution and in non-polar organic solvents; in CDCl₃ they show no significant dissociation down to concentrations of ≡0.5 mM.

References

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