Thermally regulated molybdate-based ionic liquids toward molecular oxygen activation for one-pot oxidative cascade catalysis

doi:10.1039/c9gc03646f

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	Thermally regulated molybdate-based ionic liquids toward molecular oxygen activation for one-pot oxidative cascade catalysis
	Song, Zhibin; Huang, Wei; Zhou, Yan; Tian, Zi-Qi; Li, Zhang-Min; Tao, Duan-Jian
刊名	GREEN CHEMISTRY
	2020
卷号	22 期号:1 页码:103-109
关键词	FLAVANONES FLAVONOIDS
DOI	10.1039/c9gc03646f
英文摘要	One-pot oxidative cascade catalysis plays a central role in the synthesis of key pharmaceutical and industrial molecules. Although ionic liquids are one of the most promising solvents and reaction media, the breakthrough of their catalysis in aerobic oxidation is very challenging due to the difficulty in the direct activation of molecular oxygen. Herein, a family of novel thermally regulated molybdate-based ionic liquids (Mo-ILs) has been designed and developed for the first time toward molecular oxygen activation for highly efficient tandem oxidative catalysis. Three diverse one-pot oxidative cascade processes for the syntheses of various flavones, imines, and benzyl benzoates were achieved with good to excellent yields using the Mo-IL [Bmim](2)[MoO4] as a catalyst under air conditions. The results of spectroscopic investigations and quantum-chemical calculations further demonstrated that a thermally regulated proton migration between the cation [Bmim] and anion [MoO4] was the key to forming N-heterocyclic carbene and thereby to effortlessly promoting the generation of O-2(-) active species from molecular oxygen, which results in excellent catalytic performance in these three aerobic tandem oxidations. Our work extends the application area of ILs as the sole catalyst to one-pot aerobic oxidative cascade catalysis, which could have pronounced implications in future work.
学科主题	Chemistry ; Science & Technology - Other Topics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20227]
专题	2020专题
作者单位	Tao, DJ (corresponding author), Jiangxi Normal Univ, Key Lab Funct Small Organ Mol, Minist Educ, Coll Chem & Chem Engn, Nanchang 330022, Jiangxi, Peoples R China.
推荐引用方式 GB/T 7714	Song, Zhibin,Huang, Wei,Zhou, Yan,et al. Thermally regulated molybdate-based ionic liquids toward molecular oxygen activation for one-pot oxidative cascade catalysis[J]. GREEN CHEMISTRY,2020,22(1):103-109.
APA	Song, Zhibin,Huang, Wei,Zhou, Yan,Tian, Zi-Qi,Li, Zhang-Min,&Tao, Duan-Jian.(2020).Thermally regulated molybdate-based ionic liquids toward molecular oxygen activation for one-pot oxidative cascade catalysis.GREEN CHEMISTRY,22(1),103-109.
MLA	Song, Zhibin,et al."Thermally regulated molybdate-based ionic liquids toward molecular oxygen activation for one-pot oxidative cascade catalysis".GREEN CHEMISTRY 22.1(2020):103-109.