A Dimethyl Sulfoxide-mediated Oxidation of Arylalkyl and Alkyl Alcohols to Corresponding Aldehydes and Ketones<i>via</i>Tropolonyl Ethers
作者:Hitoshi Takeshita、Hiroaki Mametsuka、Norihide Matsuo
DOI:10.1246/bcsj.55.1137
日期:1982.4
The arylmethyl and diarylmethyl ethers of tropolones were oxidized to the corresponding carbonyl derivatives by heating in dimethyl sulfoxide. The free alcohols were oxidized at a much slower rate, suggesting that some sort of DMSO-linked intermediates are responsible for the oxidation. Inertness of free alcohols was proven by means of the cross-over experiments, including deuterium-labelling. This oxidation was applicable to alkyl ethers, but not to alkenyl ethers, which are known to cause the Claisen-rearrangement.
芳基甲基和二芳基甲基醇醚在二甲基亚砜中加热氧化为相应的羰基衍生物。游离醇的氧化速率要慢得多,这表明某种DMSO相关的中间体可能负责这一氧化反应。通过交叉实验,包括氘标记,证明了游离醇的惰性。这种氧化适用于烷基醚,但不适用于已烯醚,因为已烯醚已知会引起克莱森重排。