1,3-Dicyclohexyl-2,4-bis(cyclohexylimino)-1,3-diazetidine: Dimer of Dicyclohexylcarbodiimide

The title compound, C₂₆H₄₄N₄, was isolated as a by-product of an esterification reaction using dicyclohexylcarbodiimide as a dehydrating agent. The X-ray structure determination reveals a highly symmetrical molecule with a non-crystallographic inversion centre as symmetry element. The substituents of the azetidine ring are cyclohexane rings with ideal chair conformation.

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