Аннотация:
Reaction of 3-formylchromones and triacetic acid lactone proceeds with retention of the chromone skeleton and cyclization into pyrano[3′,4′:5,6]pyrano[2,3-b]chromene system. The crystal structure of the reaction product from unsubstituted 3-formylchromone has been determined from X-ray data. Other chromone analogues bearing CO2H, CO2Me and CN substituents react with triacetic acid lactone affording an o-hydroxychalcone heteroanalogue, pyrano[3,2-c]chromene and chromeno[2,3-b]pyridine derivatives, respectively.
Образец цитирования:
M. Yu. Kornev, D. S. Tishin, D. L. Obydennov, V. Ya. Sosnovskikh, “Reactions of 3-functionalized chromones with triacetic acid lactone”, Mendeleev Commun., 30:2 (2020), 233–235
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/mendc1159
https://www.mathnet.ru/rus/mendc/v30/i2/p233
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