444087-84-7Relevant academic research and scientific papers
Transformations of acylation products of functionally 4-substituted 2-alkyl(aryl)-5-hydrazino-1,3-oxazoles into 1,3,4-oxadiazole derivatives
Golovchenko,Pil'o,Brovarets,Chernega,Drach
, p. 425 - 431 (2007/10/03)
Acylation products of 2-aryl-5-hydrazino-4-X-1,3-oxazoles [X = C(O)OAlk, P(O)(OAlk)2], when heated in acetic acid or ethanol, undergo recyclization and transform into the derivatives of 1,3,4-oxadiazol-2-ylglycine or its phosphonyl analog. A si
A Facile Synthesis of Derivatives of (1,3,4-Thiadiazol-2-yl)glycine and Its Phosphonyl Analogue
Golovchenko, Aleksandr V.,Pilyo, Stepan G.,Brovarets, Vladimir S.,Chernega, Alexander N.,Drach, Boris S.
, p. 2851 - 2857 (2007/10/03)
The adducts formed by 4-functionally-substituted 2-aryl-5-hydrazino-1,3- oxazoles and aryl isothiocyanates recyclize on heating to produce the hitherto unknown derivatives of (1,3,4-thiadiazol-2-yl)glycine and its phosphonyl analogue.
Synthesis and Transformations of 4-Phosphorylated 2-Alkyl(aryl)-5-hydrazinooxazoles
Brovarets, V. S.,Vydzhak, R. N.,Pilo, S. G.,Zyuz, K. V.,Drach, B. S.
, p. 1726 - 1728 (2007/10/03)
Treatment of 1-phosphorylated 2,2-dichloroethenylcarboxamides with excess hydrazine hy-drate gives in high yields phosphorylated derivatives of 2-alkyl(aryl)-5-hydrazinooxazoles containing the P(O)(OCH3)2, P(O)(OC2H5)2, and P+(C6H5)3ClO4- groups in the 4-position of the ring. The presence of the hydrazine group in these oxazole derivatives was confirmed not only by the spectral data, but also by the reactions with p-toluic aldehyde, p-toluic chloride, and phenyl isothiocyanate.
