Hajime Miyazaki

Trioxabicyclo [2,1,0] pentane IH photosensitized oxygenation of 2-diazo-3-butanone

Photosensitized oxygenation of 2-diazo-3-butanone at -78°C in CH2Cl2 gave trioxabicyclo [2,1,0] pentane which has a long enough life time to allow chemical and spectroscopic characterization.

Oxidative decarboxylation of α-keto carboxylic acids by carbonyl oxides

Abstract Photosensitized oxygenation of α-keto carboxylic acids in the presence of diazo compounds afforded the corresponding carboxylic acids and carbon dioxide in high yields; oxidative decarboxylation by carbonyl oxides occurred.

Decarboxylation of α-keto carboxylic acids by persulfoxide

Abstract Photosensitized oxygenation of diethyl sulfide in the presence of α-keto carboxylic acids caused oxidative decarboxylation of the acids by persulfoxide and gave carboxylic acids, carbon dioxide, diethyl sulfoxide and diethyl sulfone.

Photochemical transfer of oxygen from selenoxide to sulfide

Die Selenoxide (I) reagieren mit Sulfiden (II) zu den Seleniden (III) und den Sulfoxiden (IV).

Oxygen atom transfer by an intermediate in the photosensitized oxygenation of diazo compounds

Abstract The photosensitized oxygenations of various diazo compounds in the presence of oxygen atom acceptors were carried out. An electrophilicity of the intermediate was investigated.

Oxidative ring cleavage of o-benzoquinone by potassium peroxomonosulphate

Oxidation of 3,5-di-t-butyl-1,2-benzoquinone by potassium peroxomonosulphate gave both extra- and intra-diol cleavage products.