DOI: 10.1016/j.jcou.2016.03.002
Scopus记录号: 2-s2.0-84961223489
论文题名: Protic ionic liquids-promoted efficient synthesis of quinazolines from 2-aminobenzonitriles and CO2 at ambient conditions
作者: Lang X.-D. ; Yu Y.-C. ; Li Z.-M. ; He L.-N.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 15 语种: 英语
英文关键词: Bifunctional catalyst
; Carbon dioxide fixation
; Carboxylative cyclization
; Protic ionic liquid
; Quinazoline-2,4(1H,3H)-diones
Scopus关键词: Atmospheric pressure
; Carbon
; Catalysts
; Cyclization
; Ionic liquids
; Liquids
; Bi-functional catalysts
; Carbon dioxide fixation
; Catalytic protocol
; Efficient synthesis
; Electron-donating substituents
; Electronwithdrawing
; Protic ionic liquids
; Quinazolines
; Carbon dioxide
英文摘要: Graphical abstract: Despite recent renaissance of CO2 chemistry, transformation of CO2 at ambient conditions remains still of great challenge. In this work, an easily prepared protic ionic liquid e.g. 1,1,3,3-tetramethylguanidinium imidazolide [HTMG][Im] was developed as highly efficient, recyclable and bifunctional catalyst for the carboxylative cyclization of 2-aminobenzonitriles with CO2 at atmospheric pressure and room temperature. The catalytic protocol was found to be applicable to various 2-aminobenzonitriles bearing electron-withdrawing or electron-donating substituents, affording the corresponding quinazoline-2,4(1H,3H)-diones in moderate to excellent yields. In addition, the catalyst could be conveniently recovered and reused for five cycles with almost consistent activity. Consequently, this process represents an alternative approach for the efficient and greener chemical fixation of CO2 to afford valuable heterocycles. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52888
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Lang X.-D.,Yu Y.-C.,Li Z.-M.,et al. Protic ionic liquids-promoted efficient synthesis of quinazolines from 2-aminobenzonitriles and CO2 at ambient conditions[J]. Journal of CO2 Utilization,2016-01-01,15