54629-26-4Relevant articles and documents
Synthesis of pyridopyranoquinolines by the Skraup reaction of amino-5H- benzopyrano[2,3-b]pyridin-5-ones
Fujiwara, Hidetoshi,Kitagawa, Kouki
, p. 409 - 417 (2007/10/03)
7-, 8- and 9-Amino-5H-[1]benzopyrano[2,3-b]-pyridin-5-ones were synthesized. Skraup reaction of 6-Amino-, 7-amino-, 8-amino- and 9-Amino-5H- [1]benzopyrano[2,3-b]pyridin-5-ones in the presence of glycerol, fuming sulfuric acid, nitrobenzene, iron(II) sulf