Since it has been shown recently that the structure proposed by Pauling and Sturdivant for the cyameluric acid nucleus,11, accounts more satisfactorily for the acidic strength and for the products of hydrolysis2 than any other proposed structure, and because of the prediction made by these authors1 that there should be a group of cyameluric compounds analogous to the cyanuric compounds, attempts have been made to prepare some of these analogs.Cyameluric acid forms a blue-lavender cupric ammonium salt, CuNH4(C6N703)NH3, entirely analogous to that of cyanuric acid,3 CuNH4-(C3N303).NH3. The insoluble cupric ammonium

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5‐Amino‐2,3‐dihydro‐1,4‐phthalazinedione product: 5‐amino‐2,3‐dihydro‐1,4‐phthalazinedione

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A mechanism involving hydrogen bonding with fluorine attached to carbon was proposed to explain acid catalyzed reactions of alkyl fluorides.The reaction of the benzyl fluorides with sodium iodide in acetone was found to be extremely slow.Ithaca, X. Y.