Abnormal addition of free radicals to sterically hindered nitrosobenzenes
作者:Takeo Hosogai、Naoki Inamoto、Renji Okazaki
DOI:10.1039/j39710003399
日期:——
1-methoxycarbonyl-1-methyl-ethyl radicals reacted with 2,4,6-tri-t-butylnitrosobenzene (I) to give abnormal 1,6-addition products, 1-(1-cyano-1-methylethoxyimino)-4-(1-cyano-1-methylethyl)-2,4,6-tri-t-butylcyclohexa-2,5-diene (III) and the corresponding methoxycarbonyl derivative (IV), respectively. We suggest that the reactions proceed via anilino-radicals (II) formed by attack of the radical on the nitroso-oxygen