申请人:PHOSPHONICS LTD
公开号:US20150299229A1
公开(公告)日:2015-10-22
A process for the selective removal of a component from a liquid phase and subsequently returning the component to a liquid phase is disclosed. A novel compound of formula (I) [SUP]-[[L]-[G]]a (I) in which L is a linking group, G is an aryl group having a leaving group LG selected from Cl, Br, I, sulfonate such as triflate, a diazo group, a nitrile, an ester and an alkoxy group and substituent Q is selected from H, NR2, OR, C02R, F, Cl, N02 CN and SUP is a support having a plurality of groups -[L]-[G] bound to the support is contacted with the liquid phase to bind the component to the compound I thereby forming a captured component which is separated from and may be returned to the liquid phase. The compound I is especially useful in binding homogeneous catalysts to remove it from a reaction medium and selectively returning the catalyst to the reaction medium at a later stage. The compound is particularly useful for cross-coupling reactions, for example in Suzuki reactions.
揭示了一种从液相中选择性去除组分并随后将该组分返回到液相的方法。公开了一种具有式(I)的新化合物[SUP]-[[L]-[G]]a (I),其中L是连接基团,G是一种芳基团,具有从Cl、Br、I、磺酸盐(如三氟甲磺酸盐)、重氮基团、腈基、酯基和烷氧基中选择的离去基团LG,取代基Q从H、NR2、OR、C02R、F、Cl、N02、CN中选择,SUP是具有多个与支持物相结合的基团-[L]-[G]的支持物,与液相接触以将组分结合到化合物I中,从而形成被捕获的组分,该组分与液相分离并可以返回到液相中。化合物I在将均相催化剂结合以将其从反应介质中去除,并在后续阶段选择性地将催化剂返回到反应介质中方面特别有用。该化合物特别适用于交叉偶联反应,例如在铃木反应中。