16052-83-8Relevant academic research and scientific papers
A facile method for the synthesis of 2-aryl-7-methylpyrano[4,3-b]pyran-4, 5[4H,5H]-diones
Prakash, Om,Kumar, Ajay,Singh, Shiv P.
, p. 1035 - 1036 (2007/10/03)
The reaction of substituted 3-cinuamoyl-4-hydroxypyran-2[2H]-ones (3a-h) in I2/DMSO provides a facile method for the synthesis of 2-aryl-7-methylpyrano[4,3-b]pyran-4,5[4H,5H]-diones (2a-h).
Synthesis of 2-Aryl-7-methylpyranopyran-4(H), 5(H)-diones
Qamar, Y.,Siddiq, M.
, p. 373 (2007/10/02)
3-Cinnamoyl-4-hydroxypyran-2(H)-ones (IIIa-e) on bromination give the corresponding bromo derivatives (IVa-e) in quantitative yields.These bromo derivatives (IVa-e) on heating with pyridine containing few drops of piperidine give 2-aryl-7-methylpyrano4,3
