Functionalized cyclic carbonates are attractive monomers for the synthesis of innovative polycarbonates or polyurethanes for various applications. Even though their synthesis has been intensively investigated, doing so in a sustainable and efficient manner remains a challenge. Herein, we propose an organocatalytic procedure based on the depolymerization of a commodity polymer, bisphenol A based polycarbonate (BPA-PC). Different carbonate-containing heterocycles are obtained in good to excellent yields employing BPA-PC as a sustainable and inexpensive source of carbonate, including functionalized six-membered cyclic carbonates.

中文翻译：

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通过商品聚合物升级循环合成功能化环状碳酸酯

功能化环状碳酸酯是用于合成各种应用的创新聚碳酸酯或聚氨酯的有吸引力的单体。尽管已经对它们的合成进行了深入研究，但以可持续和有效的方式进行合成仍然是一个挑战。在此，我们提出了一种基于商品聚合物、双酚 A 基聚碳酸酯 (BPA-PC) 解聚的有机催化程序。使用 BPA-PC 作为可持续且廉价的碳酸盐来源，包括官能化的六元环状碳酸酯，可以以良好至优异的产率获得不同的含碳酸酯杂环。