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Updated: May 25, 2026

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid
Published on: November 15, 2017
6,6'-Di-tert-butyl-4,4'-dimeth-oxy-2,2'-[1,3-diazinane-1,3-diylbis(methyl-ene)]diphenol 0.19-hydrate
Abstract:
In the title hexa-hydro-pyrimidine derivative, C(28)H(42)N(2)O(4)·0.19H(2)O, the 1,3-diazinane ring has a chair conformation with a diequatorial substitution. The asymmetric unit contains one half-organic mol-ecule and a solvent water mol-ecule with occupany 0.095. The mol-ecule lies on a mirror plane perpendicular to [010] which passes through the C atoms at the 2- and 5-positions of the heterocyclic system. The partially occupied water mol-ecule is also located on this mirror plane. The dihedral angle between the planes of the aromatic rings is 17.71 (3)°. Two intra-molecular O-H⋯N hydrogen bonds with graph-set motif S(6) are present. No remarkable inter-molecular contacts exist in the crystal structure.
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