O. Goj et al., YCLOHEXYL-2,4-BIS(CYCLOHEXYLIMINO)-1,3-DIAZETIDINE - DIMER OF DICYCLOHEXYLCARBODIIMIDE, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 1554-1556
The title compound, C26H44N4, was isolated as a byproduct of an esteri
fication reaction using dicyclohexylcarbodiimide as a dehydrating agen
t, The X-ray structure determination reveals a highly symmetrical mole
cule with a non-crystallographic inversion centre as a symmetry elemen
t. The substituents of the azetidine ring are cyclohexane rings with i
deal chair conformation.