Pentane-2,4-dione with allylic alcohols or benzyl alcohol with palladium catalysts gives high yields of C-monoalkylated diketones, arising mainly from reaction at the terminal end of the allyic system for alkyl monosubstituted allyl alcohols. The effect of the catalyst on the alcohols has been evaluated; rearrangements and disproportionations have been observed.
Generation and reactivity of the acetylacetonyl radical
作者:Yuan L. Chow、Gonzalo E. Buono-Core
DOI:10.1021/ja00377a060
日期:1982.6
ticularly important in regions of incipient bonding of the localized orbitals containing the unpaired electrons, Le., when they are directed toward one another and not too far away. It is possible to view the calculated energy change on going from gauche to cyclobutane as arising from a competition between the stabilizing effect of bond formation and the destabilizing effect of eclipsing interactions