Chemical upcycling of poly(bisphenol A carbonate) to vinylene carbonates through organocatalysis
作者:Killian Onida、Mohamad Fayad、Sébastien Norsic、Olivier Boyron、Nicolas Duguet
DOI:10.1039/d2gc04413g
日期:——
then investigated with a range of α-hydroxyketones to give vinylene carbonates (symmetrical and unsymmetrical, aromatic, heteroaromatic and alkyl) with moderate to high yields (30–97%, 13 examples). Scale-up experiments were also conducted to highlight the synthetic utility of this method. Finally, it was demonstrated that vinylene carbonates can be produced from waste polycarbonate contained in compact
使用α-羟基酮作为亲核试剂研究了聚(双酚A碳酸酯)(BPA-PC)的化学解聚,得到双酚A作为原始单体和相应的碳酸亚乙烯酯作为副产物。优化表明,1,5,7-三氮杂双环[4.4.0]dec-5-ene (TBD) 是一种有效的有机催化剂,可在温和条件下(25 °C,2-MeTHF 中)进行该反应。TBD 的成功归因于它可以通过氢键同时激活 α-羟基酮和 BPA-PC。然后用一系列 α-羟基酮研究底物范围,得到中等至高收率(30-97%,13 个例子)的碳酸亚乙烯酯(对称和不对称、芳族、杂芳族和烷基)。还进行了放大实验以突出该方法的综合效用。最后,