Shell Cross‐Linked Micelles as Nanoreactors for Enantioselective Three‐Step Tandem Catalysis
作者:Michael Kuepfert、Aaron E. Cohen、Olivia Cullen、Marcus Weck
DOI:10.1002/chem.201804956
日期:2018.12.12
enantio‐enriched alcohols in the cross‐linked shell, and nucleophilic base‐catalyzed acylation in the hydrophobic core. The catalysts are positioned in close proximity on a single micelle support to take advantage of the intramicellar substrate diffusion, yet they are sufficiently spaced apart from each other in physically distinct microenvironments. These compartmentalized micelles are substrate selective
描述了组装成壳交联胶束(SCM)的功能化两亲性聚(2-恶唑啉)基三嵌段共聚物。这些胶束可通过分隔将三种不相容的催化剂进行位点分离,从而在一锅中实现三步非正交串联工艺。尤其是,在亲水性电晕中酸催化的缩酮水解为前手性酮,然后在交联壳中进行Rh催化的不对称转移氢化为对映体富集的醇,并在疏水核中进行了亲核碱催化的酰化反应。将催化剂紧密地放置在单个胶束载体上,以利用胶束内底物扩散的优势,但它们在物理上不同的微环境中彼此充分隔开。