hexamethoxy-5H-tribenzo[a,d,g]cyclononene) and Related CornpoundsBy A. S. LINDSEYThe product of condensation of veratrole and formaldehyde under acid conditions is shown to be a cyclic trimer possessing a novel ring system (I; R = Me). Three general methods of preparing this compound and its analogues are examined and their trimeric nature is established. Certain aspects of the stereochemical conformation of cyclotriveratrylene are discussed.
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