The control mechanism of (BisSalen)Al-mediated asymmetric kinetic resolution polymerization of phenethylglycolide†

IF 3.9 2区化学 Q2 POLYMER SCIENCE

Polymer Chemistry Pub Date : 2024-12-18 DOI:10.1039/d4py01439a

Zhongxuan Chen , Xuanhua Guo , Guangqiang Xu , Huibin Zou , Qinggang Wang

引用次数: 0

Abstract

Chiral (BisSalen)Al complexes have been confirmed as powerful catalysts for perfect asymmetric kinetic resolution polymerization (AKRP) of racemic phenethylglycolide (Pegl). However, understanding of the control mechanism in the AKRP mediated by (BisSalen)Al complexes is not sufficient. Herein, the polymerization of diastereomeric (rac- and meso-) Pegl mixtures mediated by (BisSalen)Al complex was investigated for the first time. The origin of the AKRP of Pegl was determined to be enantiomorphic site control (ESC) using NMR-HPLC analysis, kinetic studies and stereosequence analysis.

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（BisSalen）Al介导苯乙基乙醇酯不对称动力学分解聚合的控制机理

手性（BisSalen）Al配合物是外消旋苯乙基乙醇酸酯（Pegl）完美不对称动力学分辨聚合（AKRP）的有力催化剂。然而，（BisSalen）Al复合物介导的AKRP调控机制尚不充分。本文首次研究了（BisSalen）Al配合物SS-1介导的非对映体（rac和介观-）聚乙二醇混合物的聚合反应。通过核磁共振-高效液相色谱分析、动力学研究和立体序列分析，确定Pegl中AKRP的起源为对构位点控制（ESC）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polymer Chemistry POLYMER SCIENCE-

CiteScore

8.60

自引率

8.70%

发文量

535

审稿时长

1.7 months

期刊介绍： Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.