5084-47-9Relevant academic research and scientific papers
Synthesis of Fused Benzofuranes by Dehydratation of Cyclic Phenyl-β-dicarbonyl Compounds
Kappe, Thomas,Brandner, Alexander,Stadlbauer, Wolfgang
, p. 1177 - 1184 (2007/10/02)
3-Hydroxy-3-phenyl-quinoline-2,4-diones (1) cyclize on treatment with strong acids to give benzofuroquinolones (3).In analogy, 2-hydroxy-2-phenylphenalenedione (7) furnishes the benzofurophenalenone 10. - Keywords: Benzofuranes; Phenyl-β-dicarbonyl compou
Polycyclic Compounds: Part I - Synthesis and Reactions of 2-Aryl-3-hydroxyphenalen-1-ones
Ayyangar, N. R.,Joshi, S. V.,Lugade, A. G.
, p. 1043 - 1046 (2007/10/02)
The reaction of naphthalic anhydride (I) with arylacetic acids results in the formation of 3-hydroxy-2-arylphenalen-1-ones (IIa, IIb) and 3-arylmethylene-1H,3H-naphthopyran-1-ones (IVa, IVb).Complete spectral evidence in favour of structure (IIa)
A Comparative Study of the Reactions of Phthalides, Naphthalides and Related Compounds
El-Sharief, A. M. Sh.,Hammad, N. I. S.,Mohamed, Y. A.
, p. 456 - 459 (2007/10/02)
Synthesis of thiobenzalnaphthalide (II) and 2-substituted-3-benzylidene-2,3-dihydrobenzisoquinolin-1(2H)-ones (IV) is described. 2-Phenylphenalene-1,3(2H)-dione (V) on halogenation gives 2-halo-2-phenylphenalene-1,3(2H)-diones(VI) which react with am
