A Simple and Easily Implemented Method for the Regioselective Introduction of Deuterium into Azolo[1,5-a]pyrimidines Molecules
作者:Gevorg G. Danagulyan、Henrik A. Panosyan、Vache K. Gharibyan、Ani H. Hasratyan
DOI:10.3390/molecules28062869
日期:——
A method for the technically easy-to-implement synthesis of deuterium-labeled pyrazolo[1,5-a]pyrimidines and 1,2,4-triazolo[1,5-a]pyrimidines have been developed. The regioselectivity of such transformations has been shown. 1H NMR and mass spectrometric methods have proved the quantitative nature of such transformations and the kinetics of deuterium exchange has been studied. Spectrally, at different
开发了一种技术上易于实施的合成氘标记的吡唑并 [1,5-a] 嘧啶和 1,2,4-三唑并 [1,5-a] 嘧啶的方法。已显示此类转化的区域选择性。1H NMR 和质谱法证明了这种转化的定量性质,并且研究了氘交换的动力学。在光谱上,在不同温度(+30 °C、-10 °C 和 -15 °C)下,在 CD3OD 和氘化碱中研究了该过程的动力学。