Upcycling poly(succinates) with amines to N-substituted succinimides over succinimide anion-based ionic liquids.

ABSTRACT: The chemical transformation of waste polymers into value-added chemicals is of significance for circular economy and sustainable development. Herein, we report upcycling poly(succinates) (PSS) with amines into N-substituted succinimides over succinimide anion-based ionic liquids (ILs, e.g, 1,8-diazabicyclo[5.4.0]undec-7-ene succinimide, [HDBU][Suc]). Assisted with H₂O, [HDBU][Suc]) showed the best performance, which could achieve complete transformation of a series of PSS into succinimide derivatives and corresponding diols under mild and metal-free conditions. Mechanism investigation indicates that the cation-anion confined hydrogen-bonding interactions among IL, H₂O, ester group, and amino/amide groups, strengthens nucleophilicity of the N atoms in amino/amide group

SUBMITTER: Wu F 

PROVIDER: S-EPMC10808099 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature