用于无金属等规聚环氧丙烷的空间位阻大的联萘酚基手性双硼烷。
Sterically demanding binaphthol-based chiral diboranes for metal-free and isotactic poly(propylene oxide).
作者信息
Sirin-Sariaslan Ayla, Naumann Stefan
机构信息
Institute of Polymer Chemistry, University of Stuttgart, Stuttgart 70569, Germany.
出版信息
Chem Commun (Camb). 2023 Sep 14;59(74):11069-11072. doi: 10.1039/d3cc02889e.
PMID:37644875
Abstract
Chiral diborane polymerization catalysts with 3,3'-disubstituted binaphthol-backbones are presented. These compounds deliver isotactic poly(propylene oxide) from racemic monomer with isotactoc diad () and triad () placements of up to 92% and >80%, respectively. The resulting polyether is well-defined, of high molar mass and semi-crystalline.
摘要
本文介绍了具有3,3'-二取代联萘酚骨架的手性二硼烷聚合催化剂。这些化合物能从外消旋单体中得到全同立构聚环氧丙烷，其全同立构二单元组（）和三单元组（）的排列分别高达92%和>80%。所得聚醚结构明确、摩尔质量高且为半结晶态。
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