A novel and direct synthesis of hydroperoxy compounds from various types of conjugated olefins was established via cobalt(II) porphyrin-catalyzed hydroperoxygenation. The reaction of α,β,γ,δ-unsaturated carbonyl compounds, acrylic esters, α-substituted acrylic esters and styrene derivatives with molecular oxygen and triethylsilane in the presence of a catalytic amount of cobalt(II) porphyrin proceeded
Synthesis of γ-hydroperoxy-α,β-unsaturated carbonyl compounds from α,β,γ,δ-unsaturated carbonyl compounds by cobalt(<scp>II</scp>) porphyrin-catalysed hydroperoxygenation
γ-Hydroperoxy-α,β-unsaturated carbonyl compounds are prepared in good yields by the regioselective hydroperoxygenation of α,β,γ,δ-unsaturated carbonyl compounds with molecular oxygen and triethylsilane in the presence of cobalt(II) porphyrin as a catalyst.
The reduction of racemic gamma-hydroperoxy-alpha,beta-unsaturated carbonyl compounds in the presence of lipid-coated horseradish peroxidase as a homogenious catalyst in organic solvents such as toluene, benzene and chlororform containing a small amount of water enantio selectively afforded optical active (R)-alcohols and (S)-hydroperoxides, respectively. (C) 2003 Elsevier Ltd. All rights reserved.
Regioselective Hydroperoxygenation of Aralkanes and α,β‐Unsaturated Carbonyl Compounds Catalyzed by<i>N</i>‐Hydroxyphthalimide and 2,2′‐Azobis(4‐methoxy‐2,4‐dimethylvaleronitrile)
Aerobic oxidation of aralkanes and alpha,beta-unsaturated carbonyl compounds in the presence of a catalytic amount of N-hydroxyphthalimide (NHPI) and 2,2'-Azobis(4-methoxy-2,4-dimethylvaleronitrile) (V-70) under 1 atmos. of oxygen at 30 degrees C gave alpha-hydroperoxyaralkanes and gamma-hydroperoxy-alpha, beta-unsaturated carbonyl compounds, respectively.
DUSSAULT, PATRICK;SAHLI, AYMAN, TETRAHEDRON LETT., 31,(1990) N6, C. 5117-5120