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Six of the ten possible acylguanidine conformers have been prepared as model compounds in fixed form; all protonate on the imino nitrogen. The expected close u.v. resemblance between the cations is… (More)
Quinoline antimalarials are photochemically unstable. Several of these drugs cause toxic reactions which may be ascribed to the Photochemical degradation of the substances. The effect of light of… (More)
Vinylogous esters and acid halides have been compared with respect to their rates of hydrolysis and of reaction with ammonia and amines. Under alkaline conditions the vinylogous esters were… (More)
A series of enaminones derived from dimedone and various substituted anilines has been prepared. Their u.v. spectra are reported for acidic, neutral, and alkaline aqueous solution. For m-substituted… (More)
The reactions of two 3-aminocyclohex-2-enones with formaldehyde have been investigated in detail. The course of each reaction has been followed by u.v. spectroscopy and the conclusions confirmed by… (More)
Reaction of thiolates with (1-triphenylphosphorylideneaminomethyl)benzotriazole (betmip, 1) gave novel N-(alkylthiomethyl)iminophosphoranes 3 which were transformed, without isolation and in high… (More)