1258870-77-7Relevant academic research and scientific papers
Sulfamic acid-catalyzed synthesis of 13-aryl-indeno[1,2-b]-naphtha[1,2-e] pyran-12(13H)-ones under solvent-free conditions
Wu, Li Qiang,Li, Wei Lin,Yan, Fu Lin
, p. 1246 - 1249 (2010)
(Chemical Equation Presented) The reaction of β-naphthol with arylaldehydes and 2H-indene-1,3-dione in the presence of sulfamic acid (3 mol %) under solvent-free conditions led to 13-aryl-indeno[1,2-b]naphtho[1,2-e]pyran- 12(13H)-ones in good yields.
Phosphoric acid supported on alumina (H3PO4/Al 2O3) as an efficient and reusable catalyst for the one-pot synthesis of benzoxanthene pigments
Shaterian, Hamid Reza,Azizi, Kobra,Fahimi, Nafiseh
, p. 1403 - 1414 (2014/05/06)
Phosphoric acid supported on alumina (H3PO4/Al 2O3) is an efficient catalyst for the catalytic multi-component condensation reaction and a wide variety of syntheses of benzoxanthene pigments in good yields. The remarkable features of this new procedure are high conversions, shorter reaction times, cleaner reaction, and simple experimental and work-up procedures.
Acidic ionic liquids catalyzed three-component synthesis of 12-aryl-12H-indeno[1,2-b]naphtho[3,2-e]pyran-5,11,13-trione and 13-aryl-indeno[1,2-b]naphtha[1,2-e]pyran-12(13H)-one derivatives
Shaterian, Hamid Reza,Mohammadnia, Majid,Moradi, Farzaneh
experimental part, p. 88 - 92 (2012/07/31)
Synthesis of 12-aryl-12H-indeno[1,2-b]naphtho[3,2-e]pyran-5,11,13-trione derivatives by the three component reaction of 2-hydroxynaphthalene-1,4-dione, aldehydes, and 2H-indene-1,3-dione under solvent-free conditions at 70 °C in the presence of catalytic amount of acidic ionic liquids such as triethylammonium hydrogensulfate ([Et3NH][HSO4]), triethylamine-bonded sulfonic acid ([Et3N-SO3H]Cl), 2-pyrrolidonium hydrogensulfate ([Hnhp][HSO4]), 3-methyl-1-sulfonic acid imidazolium chloride ([Msim]Cl), and 1-methylimidazolium hydrogensulfate ([Hmim][HSO4]) is described. In addition, 13-aryl-indeno[1,2-b] naphtha[1,2-e]pyran-12(13H)-one derivatives from the reaction of β-naphthol, aldehydes, and 2H-indene-1,3-dione under thermal solvent-free conditions in the presence of mentioned catalysts is reported.
Silica chloride catalysed one-pot synthesis of 13-aryl-indeno[1,2-b] naphtha[1,2-e]pyran-12(13H)-ones under solvent-free conditions
Wu, Li-Qiang,Yang, Li-Min,Wang, Xiao,Yan, Fu-Lin
experimental part, p. 738 - 741 (2011/04/26)
A simple and facile synthesis of 13-aryl-indeno[1,2-b]naphtha[1,2-e]pyran- 12(13H)-ones has been accomplished by the one-pot condensation of β-naphthol, aldehydes, and 2H-indene-1,3-dione under solvent-free conditions in the presence of the heterogeneous catalyst silica chloride.
