Fabricated Gamma-Alumina-Supported Zinc Ferrite Catalyst for Solvent-Free Aerobic Oxidation of Cyclic Ethers to Lactones
作者:Naaser A. Y. Abduh、Abdullah A. Al-Kahtani、Mabrook S. Amer、Tahani Saad Algarni、Abdel-Basit Al-Odayni
DOI:10.3390/molecules28207192
日期:——
lactone compound as the major product for saturated cyclic ether oxidation. For THF as a model reaction, it was found that the supported catalyst was 3.2 times more potent towards the oxidation of cyclic ethers than the unsupported one. Furthermore, the low reactivity of the six-membered ethers can be tackled by optimizing the oxidant pressure and the reaction time. In the case of unsaturated ethers, deep
The carbanion 3,5-arrangements involving the dihydrofuran and dihydropyran rings as migrating groups are shown to afford exclusively the [2,3]Wittig products with a remarkably high periselectivity and stereoselectivity.