Synthesis of benzofuran derivatives using manganese (III) acetate mediated addition of β-dicarbonyl compounds to alkyne and alkenes - A comparative study
β-Dicarbonyl compounds were easily oxidized with manganese (III) acetate in acetic acid to form the corresponding α-carboradicals, which attacked alkyne and alkenes to give furan derivatives in good yield.
Yilmaz,Pekel
p. 3871 - 3876
(2007/10/03)
Cobalt(II)acetate promoted oxidative addition of 1,3-dicarbonyl compounds to alkenes under aerobic conditions
The reaction of 1,3-dicarbonyl compounds with various alkenes in presence of Co(OAC)2. XH2O under aerobic conditions gives dihydrofurans in moderate to good yields. The role of dioxygen is discussed by comparing these reactions under
Iqbal,Bhatia,Nayyar
p. 6457 - 6468
(2007/10/02)
Dibenzofuranones from 1:1 Condensations between Cyclohexanones and Cyclohexane-1,3-diones
Like aldehydes, cyclopentanone and pentan-2-one react with dimedone in a 1:2 ratio to give xanthenes.With a series of cyclohexanones, however, both dimedone and cyclohexane-1,3-dione give octahydrodibenzofuranones which are readily aromatised.In some case
Greenhill, John V.,Moten, Mohammad Ashraf,Hanke, Reiner
p. 1213 - 1218
(2007/10/02)
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