N-substituted carbamates syntheses with alkyl carbamates as carbonyl source over Ni-promoted Fe3O4 catalyst

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	N-substituted carbamates syntheses with alkyl carbamates as carbonyl source over Ni-promoted Fe3O4 catalyst
	Deng YQ(邓友全); Deng YQ(邓友全); Zhou F(周锋); Shi F(石峰); Shang JP(尚建鹏)
刊名	Journal of Catalysis
	2011
卷号	279 页码:328-336
关键词	Non-phosgene Carbamate Carbonylation Magnetic iron oxide
ISSN号	0021-9517
通讯作者	邓友全
中文摘要	A series of catalysts of magnetic iron oxide containing Ni with different nickel content were prepared with co-precipitation method and tested in the syntheses of N-substituted carbamates from various amines and alkyl carbamates. Under the optimized reaction conditions, various N-substituted carbamates were successfully synthesized with 90–98% isolated yield. The catalyst could be recovered based on the magnetic property of the catalyst and reused for five runs without deactivation. The catalysts were characterized with X-ray photoelectron spectroscopy, X-ray diffraction, temperature-programmed reduction, temperature-programmed desorption, and MÖssbauersbauer spectroscopy analyses. The results showed that the catalytic activity may be derived from the delicate synergy between Ni and Fe species resulted in specific basic sites. Quasi in situ FT-IR and isotopic tracer revealed that the formation of substituted urea was the key step and the N-substituted carbamate was formed via further alcoholysis of the substituted urea.
学科主题	物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (No: 20773416)
语种	英语
WOS记录号	WOS:000289919800011
公开日期	2012-12-04
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2364]
专题	兰州化学物理研究所_绿色化学研究发展中心
通讯作者	Deng YQ(邓友全); Deng YQ(邓友全)
推荐引用方式 GB/T 7714	Deng YQ,Deng YQ,Zhou F,et al. N-substituted carbamates syntheses with alkyl carbamates as carbonyl source over Ni-promoted Fe3O4 catalyst[J]. Journal of Catalysis,2011,279:328-336.
APA	邓友全,邓友全,周锋,石峰,&尚建鹏.(2011).N-substituted carbamates syntheses with alkyl carbamates as carbonyl source over Ni-promoted Fe3O4 catalyst.Journal of Catalysis,279,328-336.
MLA	邓友全,et al."N-substituted carbamates syntheses with alkyl carbamates as carbonyl source over Ni-promoted Fe3O4 catalyst".Journal of Catalysis 279(2011):328-336.