pyrimidine derivatives 8–11 containing chromone moiety have been obtained through reactions of thiosemicarbazones 1a-c with some electrophiles in basic media. Compound 12 was also used as a precursor for preparation of some novel 1-[(4-oxo-4H-chromen-3-ylmethylene)amino] [1,3,5]triazine derivatives 13–16. The formulations of all new products were verified based on their elemental and spectral analysis
含
色酮部分的
咪唑 4-6 和
嘧啶衍
生物 8-11 是通过缩
氨基
硫脲 1a-c 与一些亲电子试剂在碱性介质中的反应获得的。化合物 12 还用作制备一些新型 1-[(4-oxo-4H-chromen-3-ylmethylene)amino] [1,3,5] 三嗪衍
生物 13-16 的前体。所有新产品的配方均根据其元素和光谱分析进行验证。