Potassium t-butoxide-catalysed oxygenation of an α-tocopherol model compund 2,2,5,7,8-pentamethylchroman-6-ol
作者:Shigenobu Matsumoto、Mitsuyoshi Matsuo、Yoichi Iitaka
DOI:10.1039/c39810001267
日期:——
The potassium t-butoxide-catalysed oxygenation of an α-tocopherol model compound, 2,2,5,7,8-penta-methylchroman-6-ol, gave 5-hydroxy-2,2,5,7,8-penta-methylchroman-6(5H)-one (2) and 7,8-dihydro-5,7-dihydroxy-8-methylene-2,2,5,7-tetramethychroman-6(5H)-one, and 6-hydroxy-2,2,6,7,8-pentamethylchroman-5(6H)- one which was found to be formed as the result of the acyloin rearrangement of (2).
叔丁醇钾催化的α-生育酚模型化合物2,2,5,7,8-penta-methylchroman-6-ol的氧化,得到5-羟基-2,2,5,7,8-penta -methylchroman-6(5 H)-one(2)和7,8-dihydro-5,7-dihydroxy-8-methyl-2,2,5,7-tetramethychroman-6(5 H)-one,and 6 -羟基-2,2,6,7,8-五甲基苯并二氢吡喃-5(6 H)-被发现是由于(2)的酰胆素重排而形成的。