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Updated: Jun 1, 2026

Efficient Synthesis of Polyfunctionalized Benzenes in Water via Persulfate-promoted Benzannulation of α,β-Unsaturated Compounds and Alkynes
Published on: December 16, 2019
3,3'-(p-Phenyl-ene)bis-(3,4-dihydro-2H-1,3-benzoxazine)
Abstract:
Mol-ecules of the title compound, C(22)H(20)N(2)O(2), are situated on crystallographic centres of symmetry. The oxazinane ring adopts a sofa conformation. Mol-ecules are linked into cyclic centrosymmetric dimers via C-H⋯O hydrogen bonds with the motif R(2) (2)(6). In addition to the C-H⋯O inter-actions, the crystal structure is also stabilized by C-H⋯π inter-actions.
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