作者:Kaushal P. Patel
DOI:10.3998/ark.5550190.0014.302
日期:——
men-3-yl)ethyl)pyridinium bromides 1a-e with 1,3-cyclopentandione, 1,3-cyclohexandione and dimedone respectively in the presence of sodium acetate in refluxing glacial acetic acid. Thus, new fused chromenones derivatives are synthesized and characterized by analytical and spectral data.
一类新化合物7-羟基-9,10-二氢茚并[5,4-c]色烯-6,11-二酮2a-e、7-羟基-10,11-二氢-6H-萘并[2,1-c] ]色烯-6,12(9H)-二酮 2f-j 和 7-羟基-10,10二甲基-10,11-二氢-6H-萘并[2,1-c]色烯-6,12(9H)-二酮 2k -o 已通过各种 1-(2-oxo-2-(2-oxo-2H-chromen-3-yl)ethyl)pyridinium bromides 1a-e 与 1,3-环戊二酮、1,3-环己二酮和二甲酮分别在醋酸钠存在下在回流的冰醋酸中。因此,通过分析和光谱数据合成并表征了新的稠合色酮衍生物。