Lewis acid catalysed oxygen to carbon rearrangements of tetrahydropyranyl ether derivatives affords a new route to the corresponding 2-alkyl-substituted products.
Lewis酸催化的四氢吡喃醚衍生物的氧到碳重排,为相应的2-烷基取代产物提供了一条新途径。
Oxygen to carbon rearrangements of anomerically linked alkenols from tetrahydropyran derivatives: an investigation of the reaction mechanism via a double isotopic labelling crossover study
作者:Marianne F. Buffet、Darren J. Dixon、Gavin L. Edwards、Steven V. Ley、Edward W. Tate
DOI:10.1039/a909300a
日期:——
derivatives were prepared and subjected to a tin tetrachloride promoted anomeric oxygen to carbon rearrangement. Using this methodology many of the corresponding carbon-linked structures were synthesised, including alkenes and bicyclic ethers, in good yields. On the basis of an isotopiclabellingstudy using 2H incorporated into the side chain and ring system it is proposed that these reactions proceed