Zhao Binzhi, Hu Zhibin, Sun Yichen, Hajiayi Rehemuhali, Wang Teng, Jiao Ning
State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, Peking University, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
J Am Chem Soc. 2024 Oct 23;146(42):28605-28611. doi: 10.1021/jacs.4c07965. Epub 2024 Sep 6.
The selective upcycling of polyolefins to create products of increased value has emerged as an innovative approach to carbon resource stewardship, drawing significant scientific and industrial interest. Although recent advancements in recycling technology have facilitated the direct conversion of polyolefins to hydrocarbons or oxygenated compounds, the synthesis of nitrogenated compounds from such waste polyolefins has not yet been disclosed. Herein, we demonstrate a novel approach for the upcycling of waste polyolefins by efficiently transforming a range of postconsumer plastic products into nitriles and amides. This process leverages the catalytic properties of manganese dioxide in combination with an inexpensive nitrogen source, urea, to make it both practical and economically viable. Our approach not only opens new avenues for the creation of nitrogenated chemicals from polyolefin waste but also underscores the critical importance of recycling and valorizing carbon resources originally derived from fossil fuels. This study provides a new upcycling strategy for the sustainable conversion of waste polyolefins.
将聚烯烃选择性升级循环利用以制造高附加值产品,已成为一种创新的碳资源管理方法,引起了科学界和工业界的广泛关注。尽管近期回收技术的进步促进了聚烯烃直接转化为碳氢化合物或含氧化合物,但尚未见从这类废弃聚烯烃合成含氮化合物的报道。在此,我们展示了一种将废弃聚烯烃升级循环利用的新方法,可有效地将一系列消费后塑料制品转化为腈类和酰胺类化合物。该过程利用了二氧化锰的催化特性,并结合廉价的氮源尿素,使其既实用又具有经济可行性。我们的方法不仅为从聚烯烃废料中制造含氮化学品开辟了新途径,还强调了回收和利用原本源自化石燃料的碳资源的至关重要性。本研究为废弃聚烯烃的可持续转化提供了一种新的升级循环策略。