A novel borontrifluoride⋅diethyl ether (BF3⋅OEt2)-catalyzed etherification procedure has been developed in which primary and secondary alcohols are easily converted into diphenylmethyl ethers with yields of up to 99%.
Organohalide-catalyzed dehydrative O-alkylation between alcohols: a facile etherification method for aliphatic ether synthesis
作者:Qing Xu、Huamei Xie、Pingliang Chen、Lei Yu、Jianhui Chen、Xingen Hu
DOI:10.1039/c5gc00284b
日期:——
Organohalides effectively catalyzed dehydrative O-alkylation reactions between alcohols, providing selective, practical, green, and easily scalable homo- and cross-etherification methods for the preparation of useful symmetrical and unsymmetrical aliphatic ethers.
Borderline mechanisms involving ion-molecule pairs for the nucleophilic substitution reactions of benzhydrol and its derivatives. Facile formation and cleavage of diphenylmethyl ethers for the protection of hydroxyl groups
作者:Rodrigo Paredes、Ruby L. Pérez
DOI:10.1016/s0040-4039(98)00181-6
日期:1998.4
Nucleophilic substitution reactions of benzhydrol and its derivatives, in refluxing benzene in the presence of para-toluenesulfonic acid, took different routes depending on whether para-toluenesulfonic acid was used in excess or in catalytic amounts. In the first case the reactions took place via benzhydryl carbocations and in the second case they proceeded via intimate ion-molecule pairs. On the basis