Polymer ionic liquid network: a highly effective reusable catalyst for one-pot synthesis of heterocyclic compounds.

ABSTRACT: Significant efforts have been devoted to developing immobilized chiral catalysts with high activity, selectivity, and stability. In this present study, a new heterogeneous proline catalyst system was prepared based on strong noncovalent interactions between polymer ionic liquid (PIL) and l-proline. First, pyridine PILs, which can complex with l-proline monomers through noncovalent interactions, were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization. The polymer network-supported chiral catalysts were obtained following further free radical polymerization. Different structures were formed in response to different ratios of PIL and chiral monomer, as well as different PIL anions, in the reactions. The new formed layer structures and synergic effects of

SUBMITTER: Li X 

PROVIDER: S-EPMC9092053 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature