Secondary benzylic alcohols are coupled in the presence of zirconiumtetrachloride to afford the corresponding symmetrical ethers in good yields. Unsymmetric ethers are obtained with good selectivity by condensation of two different secondary benzylic alcohols under the action of the same catalyst.
Pincer‐Ruthenium Catalyzed Oxygen Mediated Dehydrative Etherification of Alcohols and
<i>Ortho</i>
‐Alkylation of Phenols
作者:Kanu Das、Eileen Yasmin、Akshai Kumar
DOI:10.1002/adsc.202200780
日期:2022.11.22
formulated for the selective etherification of secondary alcohols catalyzed by NNN pincer-ruthenium(II) carbonyl complexes based on bis(imino)pyridine ligands in the presence of molecular oxygen under solvent-free and base-free conditions at 140 °C. Under these conditions, very high yields (up to 92%, ca. 6133 TON) of the corresponding ethers are obtained at a very low catalyst loading (ca. 0.015 mol%)