4940-52-7Relevant academic research and scientific papers
A Palladium-Catalyzed Oxa-(4+4)-Cycloaddition Strategy towards Oxazocine Scaffolds
Scuiller, Ana?s,Liu, Xueyang,Cordier, Marie,Garrec, Julian,Archambeau, Alexis
supporting information, p. 981 - 986 (2021/06/02)
A Pd-catalyzed oxa-(4+4)-cycloaddition between 1-azadienes and (2-hydroxymethyl)allyl carbonates is described. Aurone-derived azadienes furnished polycyclic 1,5-oxazocines in good yields. Interestingly, linear azadienes have also been involved and yielded monocyclic heterocycles with complete regioselectivity. DFT calculations were carried out to gain insight on this observation.
O-Heterocycles by the Cyclization of Side-Chain Bromomethoxylated 2'-Acetoxychalcones
Donnelly, John A.,Higginbotham, Clement L.
, p. 83 - 87 (2007/10/02)
The title chalcone derivatives react with aqueous sodium hydroxide of various concentrations to form aurones as the major product, together with small amounts of flavones.However, the introduction of 4'-nitro or 4'-chloro substituents resulted in the formation of flavones as the major product.
Synthesis of 2-Benzylidene-3(2H)-benzofuran-3-ones (Aurones) by Oxidation of 2'-Hydroxychalcones with Mercury(II) Acetate
Sekizaki, Haruo
, p. 1407 - 1409 (2007/10/02)
The reaction of 2'-hydroxychalcones with mercury(II) acetate in acetic acid gives predominantly 2-benzylidene-3(2H)-benzofuran-3-ones (aurones) in 28-62 percent yield accompanied by flavonones in 5-21 percent yield.
Synthesis of Pyridobenzofurans
Sarbagya, D. P.,Rangachari, K.,Mazumdar, A. K. D.,Banerji, K. D.
, p. 891 - 893 (2007/10/02)
Some diarylpyridobenzofurans have been conveniently synthesised in 50-65percent yield by the condensation of 2-arylidene-6-methoxycoumaran-3-ones (III) with phenacylpyridinium halides in the presence of ammonium acetate.In a similar manner some 5-h
