73991-81-8Relevant academic research and scientific papers
COMPOUND PROTECTING AGAINST ULTRAVIOLET
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Page/Page column 9, (2010/02/13)
An ultraviolet ray protection agent including a compound having an ultraviolet ray protection effect as an active ingredient. The compound is expressed by general formula I': wherein X represents NH or O; Y' represents a vinyl group substituted by a methy
Polar Effects in the Decomposition of Bis(3-alkoxyaroyl) Peroxides. Synthesis of 8-Alkoxy-6H-dibenzopyran-6-ones
Auricchio, Sergio,Citterio, Attilio,Sebastiano, Roberto
, p. 6312 - 6316 (2007/10/02)
The reaction of four substituted bis(3-alkoxybenzoyl) peroxides (1b-e) in neat phenols (2a-e) affords mainly 8-alkoxy-6H-dibenzopyran-6-ones (7) and ortho-benzoyloxylation products (4) of the phenol.Diaroyl peroxides without electron-releasing meta substituents afford essentially products 4.A mechanism involving monoelectronic oxidation of the phenol by the peroxide and biaryl coupling by preferential addition of the phenol radical cation to the ortho positions to the alkoxy group of the diaroyl peroxide is suggested.
