37770-89-1Relevant academic research and scientific papers
Transformations of 4-oxo-4H-chromene-3-carbaldehyde under the action of FE(CO)5
Ambartsumyan,Vasil'eva,Chakhovskaya,Mysova,Tuskaev,Khrustalev,Kochetkov
, p. 451 - 455 (2012)
Transformations of 4-oxo-4H-chromene-3-carbaldehyde in the presence of pentacarbonyliron and HMPA in benzene and toluene were studied, and their probable mechanism was proposed. The structure of 3-(4-oxochroman-3-ylmethyl)- 4H-chromen-4-one was determined by spectral methods and X-ray analysis. Pleiades Publishing, Ltd., 2012.
Benzopyrans : Part 40 - Alumina mediated transformations of 4-oxo-4H-1- benzopyran-3-carbaldehyde, -3-carboxylic acid and their 2-methylhomologues
Ghosh, Chandra Kanta,Bhattacharyya, Samita
, p. 166 - 172 (2007/10/03)
In contact with alumina, the title aldehyde 1 (R = H, Me, Cl) gives the chromones 5 and 9,12 whereas the acid 2 affords the chromones 7, 10 and acetophenone 23. Alumina converts the aldehyde 3 to the xanthone 14, and the corresponding acid 4 to the chromone 8 and diketone 24.
