Treatment of 1-phosphorylated 2,2-dichloroethenylcarboxamides with excess hydrazine hydrate 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)3ClO(4)(-) 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.
作者:V. S. Brovarets、R. N. Vydzhak、S. G. Pil'o、K. V. Zyuz'、B. S. Drach
DOI:10.1023/a:1013982122431
日期:——
Treatment of 1-phosphorylated 2,2-dichloroethenylcarboxamides with excess hydrazine hydrate 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)3ClO(4)(-) 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.
Structure of reaction products of trimethyl phosphite with N-acetyltrichloroacetaldimine
作者:B. A. Arbuzov、N. A. Polezhaeva、V. S. Vinogradova