13676-20-5Relevant academic research and scientific papers
Interfacial Activity of Quaternary Salts as a Guide to Catalytic Performance in Phase-Transfer Catalysis
Mason, Doron,Magdassi, Shlomo,Sasson, Yoel
, p. 2714 - 2717 (1990)
The phase tranfer catalysed ethylation of deoxybenzoin has been studied in several solvents, using symmetrical quaternary ammonium bromides as catalysts.In all cases the reactivity passed through a maximum as the size of the catalyst increased.The catalysts were also found to reduce the interfacial tension between the phases - this effect also passing through a maximum as a function of catalyst size.A correlation was observed between the two parameters, such that those catalysts reducing interfacial tension most markedly were also the best catalysts.Therefore, interfacial tension can be a guide to catalytic activity in certain PTC systems.
Palladium-catalyzed hydroarylation, hydroalkenylation, and hydrobenzylation of ynol ethers with organohalides: A regio- and stereoselective entry to α,β- and β,β-disubstituted alkenyl ethers
Cui, Weijian,Yin, Jing,Zheng, Renwei,Cheng, Cungui,Bai, Yihui,Zhu, Gangguo
, p. 3487 - 3493 (2014/05/06)
A Pd-catalyzed reductive addition of organohalides, including aryl, alkenyl, and benzyl halides, to ynol ethers has been realized in the presence of 2-propanol, giving α,β- and β,β-disubstituted olefinic ethers in satisfactory yields with excellent regio- and stereoselectivity. It represents the first highly regio- and stereoselective hydroarylation, hydroalkenylation, and hydrobenzylation of ynol ethers.
