Efficient catalytic conversion of CO2 to quinazoline-2,4(1 H,3 H)-diones by a dual-site anion-functionalized ionic liquid: reconsidering the mechanism

Tingting Chen; Yujun Guo; Yingjie Xu

doi:10.1039/d3cc03956k

Efficient catalytic conversion of CO₂ to quinazoline-2,4(1 H,3 H)-diones by a dual-site anion-functionalized ionic liquid: reconsidering the mechanism

Chem Commun (Camb). 2023 Oct 12;59(82):12282-12285. doi: 10.1039/d3cc03956k.

Authors

Tingting Chen¹, Yujun Guo¹, Yingjie Xu¹

Affiliation

¹ Department of Chemistry, Shaoxing University, Shaoxing, Zhejiang Province, 312000, China. xuyj@usx.edu.cn.

PMID: 37751272
DOI: 10.1039/d3cc03956k

Abstract

In order to elucidate the reaction mechanism of ionic liquid-catalyzed CO₂ with 2-aminobenzonitrile, [P₄₄₄₂]₂[Hy] with two N^- sites is designed for the efficient preparation of quinazoline-2,4(1H,3H)-diones. The results show that [Hy]^2- can activate 2-aminobenzonitrile by hydrogen bonding with -NH₂ in addition to activating CO₂, and the key intermediate is revealed.