Weak Bonds Joint Effects Catalyze the Cleavage of Strong C-C Bond of Lignin-Inspired Compounds and Lignin in Air by Ionic Liquids

doi:10.1002/cssc.202001828

	Weak Bonds Joint Effects Catalyze the Cleavage of Strong C-C Bond of Lignin-Inspired Compounds and Lignin in Air by Ionic Liquids
	Kang, Ying 1,2,3; Yang, Yongqing 2,3; Yao, Xiaoqian 2; Liu, Yanrong 4; Ji, Xiaoyan 4; Xin, Jiayu 2,3; Xu, Junli 2; Dong, Huixian 2; Yan, Dongxia 2; He, Hongyan 2
刊名	CHEMSUSCHEM
	2020-09-30
页码	10
关键词	hydrogen bond ionic liquids lignin oxidation weak bonds joint effects
ISSN号	1864-5631
DOI	10.1002/cssc.202001828
英文摘要	Oxidation of lignin to value-added aromatics through selective C-C bond cleavage via metal-free and mild strategies is promising but challenging. It was discovered that the cations of ionic liquids (ILs) could effectively catalyze this kind of strong bond cleavage by forming multiple weak hydrogen bonds, enabling the reaction conducted in air at temperature lower than 373 K without metal-containing catalysts. The cation [CPMim](+)(1-propylronitrile-3-methylimidazolium) afforded the highest efficiency in C-C bond cleavage, in which high yields (>90 %) of oxidative products were achieved. [CPMim](+)could form three ipsilateral hydrogen bonds with the oxygen atom of C=O and ether bonds at both sides of the C-C bond. The weak bonds joint effects could promote adjacent C-H bond cleave to form free radicals and thereby catalyze the fragmentation of the strong C-C. This work opens up an eco-friendly and energy-efficient route for direct valorization of lignin by enhancing IL properties via tuning the cation.
资助项目	National Key R&D Program of China[2018YFB1501600] ; National Natural Science Foundation of China[21878292] ; National Natural Science Foundation of China[21606240] ; National Natural Science Foundation of China[21878314] ; K. C. Wong Education Foundation[GJTD-2018-04] ; Strategic Priority Research Program of Chinese Academy of Science[XDA21060300] ; China Postdoctoral Science Foundation[2019M660797]
WOS关键词	CELLULOSE DISSOLUTION ; MONOMER PRODUCTION ; MODEL COMPOUNDS ; DEPOLYMERIZATION ; OXIDATION ; BIOMASS ; EFFICIENT ; SOLUBILITY ; CONVERSION ; MECHANISM
WOS研究方向	Chemistry ; Science & Technology - Other Topics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000573591200001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; K. C. Wong Education Foundation ; Strategic Priority Research Program of Chinese Academy of Science ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42285]
专题	中国科学院过程工程研究所
通讯作者	Lu, Xingmei
作者单位	1.Chinese Acad Sci, Innovat Acad Green Manufature, Beijing 100190, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ionic Liquids Clean Proc,Inst Pro, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100190, Peoples R China 4.Lulea Univ Technol, Div Energy Sci, Energy Engn, S-97187 Lulea, Sweden
推荐引用方式 GB/T 7714	Kang, Ying,Yang, Yongqing,Yao, Xiaoqian,et al. Weak Bonds Joint Effects Catalyze the Cleavage of Strong C-C Bond of Lignin-Inspired Compounds and Lignin in Air by Ionic Liquids[J]. CHEMSUSCHEM,2020:10.
APA	Kang, Ying.,Yang, Yongqing.,Yao, Xiaoqian.,Liu, Yanrong.,Ji, Xiaoyan.,...&Lu, Xingmei.(2020).Weak Bonds Joint Effects Catalyze the Cleavage of Strong C-C Bond of Lignin-Inspired Compounds and Lignin in Air by Ionic Liquids.CHEMSUSCHEM,10.
MLA	Kang, Ying,et al."Weak Bonds Joint Effects Catalyze the Cleavage of Strong C-C Bond of Lignin-Inspired Compounds and Lignin in Air by Ionic Liquids".CHEMSUSCHEM (2020):10.