Abstract:
2-(Ethoxalylmethyl)chromones undergo dimerization to dichromonyl derivatives of isotetronic acid in 62–89% yields on refluxing with 2,3-diaminopyridine in ethanol for 1–2h.
Citation:
V. Ya. Sosnovskikh, D. A. Vetyugova, A. V. Safrygin, O. S. Eltsov, P. A. Slepukhin, “Self-condensation of 2-(ethoxalylmethyl)chromones into new derivatives of isotetronic acid”, Mendeleev Commun., 28:4 (2018), 434–436
Linking options:
https://www.mathnet.ru/eng/mendc1792
https://www.mathnet.ru/eng/mendc/v28/i4/p434
This publication is cited in the following 1 articles:
Daria A. Vetyugova, Natal'ya S. Nashtatik, Alexander V. Safrygin, Vyacheslav Ya. Sosnovskikh, “The reaction of ethyl 2-oxo-3-(4-oxo-4N-chromen-2-yl)propanoates with S-methylisothiosemicarbazide hydroiodide”, Chem Heterocycl Comp, 54:7 (2018), 696