Biocompatible anions-derived ionic liquids a sustainable media for CO2 conversion into quinazoline-2,4(1H,3H)-diones under additive-free conditions

被引：14

作者：

Weng, Shiwei ^{[1
]}

Dong, Jiqing ^{[1
]}

Ma, Jingjing ^{[2
]}

Bai, Jiayu ^{[3
]}

Liu, Fusheng ^{[1
]}

Liu, Mengshuai ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Eco Chem Engn, Qingdao 266042, Peoples R China

[2] Ningxia Univ, State Key Lab High efficiency Utilizat Coal & Gre, Yinchuan 750021, Peoples R China

[3] Cent Hosp Affiliated Shenyang Med Coll, Dept Lab, Shenyang 110000, Peoples R China

来源：

JOURNAL OF CO2 UTILIZATION | 2022年 / 56卷

基金：

中国国家自然科学基金;

关键词：

CO2; utilization; Biocompatible ionic liquids; Homogeneous catalysis; Quinazoline-2,4(1H,3H)-dione; Green medium; CATALYZED EFFICIENT SYNTHESIS; CARBON-DIOXIDE; CHEMICAL FIXATION; 2-AMINOBENZONITRILES; TRANSFORMATION; CAPTURE; MILD;

D O I：

10.1016/j.jcou.2021.101841

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Based on an one-step acid-base neutralization method, several biocompatible anions-derived ionic liquids (bio-AILs) were prepared and characterized. They were first used as dual solvent-catalyst for cyclization of CO2 and 2-aminobenzonitriles to synthesize quinazoline-2,4(1H,3H)-diones. The influence of different bio-AILs structures on the cyclization reaction were studied, and [HTMG][Lae] was confirmed to be an excellent medium. By optimizing the reaction conditions, the [HTMG][Lae]-mediated cyclization reaction could afford a 96 % quinazoline-2,4(1H,3H)-dione yield at 70 degrees C, 1.0 MPa CO2 pressure for 6 h without other additives. The catalytic activities of various homogeneous media for transformation of CO2 into quinazoline-2,4(1H,3H)-dione were analyzed and compared. In addition, the reusability and general applicability of the [HTMG][Lae] medium were examined, the [HTMG][Lae] could show comparable activity in the fifth experiment, and it had good versatility for cyclization of CO2 with various 2-aminobenzonitriles. Finally, an insight into the activation behaviors of [HTMG][Lae] to reactants were further investigated, and based on this, a feasible reaction mechanism was proposed.

引用

页数：7

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