138793-89-2Relevant academic research and scientific papers
Behaviour of a naphthopyranone derivative towards some nitrogen and carbon nucleophiles
Essawy, S A,El-Kady, M Y,Metwally, R N,El-Shenawy, A I
, p. 39 - 43 (2007/10/02)
9-(p-Anisyl)-6a,7,8,9-tetrahydro-6-oxo-6H-benzonaphtholpyran-7,8-dicarboxylic acid (3) has been prepared by cycloaddition of 4-(p-methoxystyryl)-2H-naphtholpyran-2-one (2) with maleic anhydride.The reactions of 3 with amines, phosphorous
