The efficient transformation of CO₂ into value‐added chemicals with green, abundant, and cheap catalysts is an interesting and challenging topic in both green and sustainable chemistry. In this study, a series of salt‐lake brines were used for the first time to catalyze the reaction of CO₂ and a broad range of 2‐aminobenzonitriles to form the corresponding quinazoline‐2,4(1 H,3 H)‐diones. It was found that the abundant, available, and inexpensive Zhabuye basic salt‐lake brine could efficiently promote the reaction of 2‐aminobenzonitriles under low pressure of CO₂. Very high yields of value‐added products were obtained. Further studies indicated that the basic carbonate and borate ions in the brine play key roles in accelerating the reactions.

中文翻译：

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碱性盐湖卤水：将CO2转化为喹唑啉-2,4（1 H，3 H）-二酮的有效催化剂

在绿色和可持续化学领域，利用绿色，丰富且廉价的催化剂将CO ₂有效转化为增值化学品是一个有趣且具有挑战性的话题。在这项研究中，首次使用了一系列盐湖盐水来催化CO ₂和各种2-氨基苄腈的反应，形成相应的喹唑啉-2,4（1  H，3  H）-二酮。发现丰富，可用和廉价的扎布耶碱性盐湖盐水可以有效地促进2-氨基苄腈在CO ₂低压下的反应。。获得了很高的增值产品收益。进一步的研究表明，盐水中的碱性碳酸根和硼酸根离子在加速反应中起关键作用。