Straightforward Synthesis of Poly(dimethylsiloxane) Phases with Immobilized (1R)-3-(Perfluoroalkanoyl)camphorate Metal Complexes and Their Application in Enantioselective Complexation Gas Chromatography
作者:Markus J. Spallek、Golo Storch、Oliver Trapp
DOI:10.1002/ejoc.201200075
日期:2012.7
the fluoroacylation, which is one of the key steps in the synthesis of (1R)-3-(perfluoroalkanoyl)camphorate metal complexes, was developed to improve the isolation and overall yield. The immobilization of (1R,4S)-10-(allyloxy)-3-(heptafluorobutanoyl)camphor – 10-(allyloxy)-hfbc – onto polysiloxanes as well as the incorporation of nickel(II), oxovanadium(IV), europium(III), and lanthanum(III) was characterized
介绍了通过丙烯氧基连接体 (Chirasil-Metal-OC3) 固定到聚合物主链上的新型手性聚硅氧烷基金属固定相的直接合成。从市售的对映体纯 (+)-(1S)-樟脑磺酸开始,合成分六个步骤完成,总产率高。提出了两种不同的方法来处理 Chirasil-Metal 相,其特征是用于通过氢化硅烷化固定的亚丙基氧基或亚丙基硫基接头。此外,还开发了一种新的氟酰化方案,它是 (1R)-3-(全氟烷酰基) 樟脑酸盐金属配合物合成中的关键步骤之一,以提高分离度和总产率。(1R, 4S)-10-(烯丙氧基)-3-(七氟丁酰基)樟脑 – 10-(烯丙氧基)-hfbc – 到聚硅氧烷上,以及镍 (II)、氧钒 (IV)、铕 (III) 和镧 ( III) 通过 FT ATR IR 和 NMR 光谱表征。总体而言,通过金属掺入和固定化 (1R,4S)-10-(烯丙氧基)-3-(七氟丁酰基)樟脑 (10-烯丙氧基-hfbc)