作者:Takayoshi Arai、Toru Sato、Hirofumi Kanoh、Katsumi Kaneko、Koichi Oguma、Akira Yanagisawa
DOI:10.1002/chem.200701371
日期:2008.1.18
strategy for the encapsulation of magnetic nanobeads was developed by using the in situ self-assembly of an organic-inorganic hybrid polymer. The hybrid polymer of [Cu(bpy)(BF(4))(2)(H(2)O)(2)](bpy)}(n) (bpy=4,4'-bipyridine) was constructed on the surface of amino-functionalized magnetic beads and the resulting hybrid-polymer-encapsulated beads were utilized as catalysts for the oxidation of silyl enolates
通过使用有机-无机杂化聚合物的原位自组装,开发了一种磁性纳米珠囊化的新策略。构造了[Cu(bpy)(BF(4))(2)(H(2)O)(2)](bpy)}(n)(bpy = 4,4'-联吡啶)的杂化聚合物氨基官能化磁珠的表面和所得的杂化聚合物包封的珠用作氧化甲硅烷基化物的催化剂,从而以高收率提供相应的α-羟基羰基化合物。反应完成后,通过磁分离容易地回收催化剂,并且回收的催化剂可以重复使用几次。由于当前的方法不需要复杂的过程即可将催化剂掺入磁珠中,