588-67-0Relevant articles and documents
Electrochemical Study of Phase-Transfer Catalysis Reactions: The Williamson Ether Synthesis
Tan, S. N.,Dryfe, R. A.,Girault, Hubert H.
, p. 231 - 242 (1994)
The transfer properties of the ionic species involved in the Williamson ether synthesis by phase-transfer catalysis were investigated using electrochemical techniques developed for the study of polarised liquid-liquid interfaces.This approach allows the measurement of the apparent partition coefficients of the transferring species.From these data, it is proposed that the role of the phase-transfer catalyst salt in the reaction mechanism is to establish a Galvani distribution potential difference between the two phases which in turn acts as the driving force for transferring the reactive aqueous ions to the organic phase.
A Catalyst System Based on Copper(II) Bromide Supported on Zeolite HY with a Hierarchical Pore Structure in Benzyl Butyl Ether Synthesis
Agliullin, M. R.,Bayguzina, A. R.,Gallyamova, L. I.,Khusnutdinov, R. I.
, p. 937 - 941 (2020/09/02)
Abstract: Novel catalyst systems based on CuBr2 supported on zeolite HY with a hierarchical pore structure have been proposed for benzyl butyl ether synthesis by the intermolecular dehydration of benzyl and butyl alcohols. It has been shown that catalyst systems with a CuBr2 content of ~10 wt percent provide a benzyl butyl ether yield of ~95percent at 150°C.
Reductive C-O, C-N, and C-S Cleavage by a Zirconium Catalyzed Hydrometalation/β-Elimination Approach
Matt, Christof,K?lblin, Frederic,Streuff, Jan
supporting information, p. 6983 - 6988 (2019/09/09)
A zirconium catalyzed reductive cleavage of Csp3 and Csp2 carbon-heteroatom bonds is reported that makes use of a tethered alkene functionality as a traceless directing group. The reaction is successfully demonstrated on C-O, C-N, and C-S bonds and proposed to proceed via a hydrozirconation/β-heteroatom elimination sequence of an in situ formed zirconium hydride catalyst. The positional isomerization of the catalyst further enables the cleavage of homoallylic ethers and the removal of terminal allyl and propargyl groups.