环丙烯亚胺介导的一氧化碳活化用于合成聚氨酯、小分子碳酸酯和氨基甲酸酯。
Cyclopropenimine-Mediated CO Activation for the Synthesis of Polyurethanes and Small-Molecule Carbonates and Carbamates.
作者信息
Wu Dino, Martin Robert T, Piña Jeanette, Kwon Junho, Crockett Michael P, Thomas Andy A, Gutierrez Osvaldo, Park Nathaniel H, Hedrick James L, Campos Luis M
机构信息
Department of Chemistry, Columbia University, 10027, New York, NY, USA.
Department of Chemistry & Biochemistry, University of Maryland, 8051 Regents Drive, College Park, 20742, Maryland, MD, USA.
出版信息
Angew Chem Int Ed Engl. 2024 Apr 24;63(18):e202401281. doi: 10.1002/anie.202401281. Epub 2024 Mar 25.
Carbon dioxide (CO) is an abundant C1 feedstock with tremendous potential to produce versatile building blocks in synthetic applications. Given the adverse impact of CO on the atmosphere, it is of paramount importance to devise strategies for upcycling it into useful materials, such as polymers and fine chemicals. To activate such stable molecule, superbases offer viable modes of binding to CO. In this study, a superbase cyclopropenimine derivative was found to exhibit exceptional proficiency in activating CO and mediating its polymerization at ambient temperature and pressure for the synthesis of polyurethanes. The versatility of this reaction can be extended to monofunctional amines and alcohols, yielding a variety of functional carbonates and carbamates.
二氧化碳（CO₂）是一种丰富的C1原料，在合成应用中具有生产多种通用结构单元的巨大潜力。鉴于CO₂对大气的不利影响，制定将其升级循环为有用材料（如聚合物和精细化学品）的策略至关重要。为了活化这种稳定的分子，超强碱提供了与CO₂结合的可行方式。在本研究中，发现一种超强碱环丙烯亚胺衍生物在常温常压下活化CO₂并介导其聚合以合成聚氨酯方面表现出卓越的能力。该反应的通用性可扩展到单官能胺和醇，从而生成各种功能性碳酸酯和氨基甲酸酯。
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