A new tetracyclic ring system: the reaction of glyoxal with a 1,4,8,11-tetra-azacyclotetradecane and the X-ray crystal structure of the product

Abstract
The synthesis of the novel 3a,5a,8a,10a-tetra-azapyrene (1) from the macrocycle (6) is reported; X-ray data for (1) confirm its structure, and cause a revision in the previously assigned structure (2) of the tetra-azacyclotetradecane starting material.

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