Alkylation reactions of active methylene compounds, alcohols and phenols with alkyl halides in aqueous NaOH solution can be carried out without the need for any added organic solvents in most cases. The water-soluble calix[n]arenes, which contain trimethylammoniomethyl groups on the upper rim, were used as inverse phase-transfercatalysts, resulting in the corresponding alkylated products in good to
An alternative catalytic method to the Williamson's synthesis of ethers
作者:Valérie Bethmont、Fabienne Fache、Marc Lemaire
DOI:10.1016/0040-4039(95)00730-z
日期:1995.6
The synthesis of ethers from alcohols and aldehydes or ketones via the corresponding hemiketals is reported using Pd/C as catalyst, under hydrogen. Good isolated yield (>80%) are obtained.
Fache, Fabienne; Bethmont, Valerie; Jacquot, Laurent, Recueil des Travaux Chimiques des Pays-Bas, 1996, vol. 115, # 4, p. 231 - 238
作者:Fache, Fabienne、Bethmont, Valerie、Jacquot, Laurent、Lemaire, Marc
DOI:——
日期:——
Etherification of Alcohols in the Absence of Solvent: Catalytic Function of Polyethers in a Solid/Liquid Medium
作者:B. Abribat、Y. Le Bigot、A. Gaset
DOI:10.1080/00397919408010220
日期:1994.8
The catalytic action of etherified polyethylene glycols associated with a precise degree of hydration of the reacting medium allows the successful transformation of primary or secondary alcohols into corresponding ethers using very simple operating conditions.