- The mechanism of the Gibbs reaction. Part 2: The ortho mutually implies ortho 2,4-cyclohexadiene-1-one rearrangement of the reaction product of 2,6- di-tert-butyl-4-chlorophenol and 2,6-dichlorobenzoquinone N-chloroimine
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The saturation transfers which were observed during the 1H NOE difference measurements prove an ortho mutually implies ortho 2,4-cyclohexadiene-1-one rearrangement of the reaction product of 2,6-di-tert-butyl-4-chlorophenol and 2,6-dichlorobenzoquinone N-chloroimine. This process is an intramolecular rearrangement.
- Pallagi,Toro,Muller
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p. 8809 - 8814
(2007/10/02)
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- Choice of Manganese(III) Complexes for the Synthesis of 4,4'-Biphenyldiols and 4,4'-Diphenoquinones
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2,6-Disubstituted phenols are oxidized with tris(2,4-pentanedionato)manganese(III), , in glacial acetic acid to give the corresponding 4,4'-biphenyldiols in high yields, whereas similar reactions using manganase(III) acetate, , instead of quantitatively yield the corresponding 4,4'-diphenoquinones.Cross-coupling reactions of 2,6-di-t-butylphenol and other substituted phenols afford the corresponding cross-coupled 4,4'-biphenyldiols and 4,4'-diphenoquinones together with oxidation products derived from them starting phenols themselves.The advantageous use of and Mn(OAc)3> in the ubiqitous phenol coupling reaction is discussed.
- Nishino, Hiroshi,Nobuyuki, Itoh,Nagashima, Makiko,Kurosawa, Kazu
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p. 620 - 622
(2007/10/02)
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