A one-pot synthesis of the 1-benzopyrano[2,3-b]pyridine moiety from 2-(alkyl/arylamino)-4-oxo-4H-1-benzopyran-3-carbaldehyde
作者:Sourav Maiti、Suman Kalyan Panja、Chandrakanta Bandyopadhyay
DOI:10.1002/jhet.397
日期:——
2‐(Alkyl/arylamino)chromone‐3‐carbaldehyde reacts with Meldrum's acid, hippuric acid, 4‐hydroxycoumarin, diethyl malonate, ethyl acetoacetate, or ethyl benzoylacetate to produce 1‐benzopyrano[2,3‐b]pyridine‐2,5‐dione moiety, but ethyl cyanoacetate and malononitrile react differently. J. Heterocyclic Chem., (2010).
2-(烷基/芳基氨基)色酮-3-甲醛与Meldrum的酸,马尿酸,4-羟基香豆素,丙二酸二乙酯,乙酰乙酸乙酯或苯甲酰乙酸乙酯反应生成1-苯并吡喃并[2,3 - b ]吡啶-2-5 -二酮部分,但氰基乙酸乙酯和丙二腈反应不同。J.杂环化学。(2010)。