The nanocomposites of SO3H-hollow-nanosphere and chiral amine for asymmetric aldol reaction

	The nanocomposites of SO3H-hollow-nanosphere and chiral amine for asymmetric aldol reaction
	Gao, Jinsuo; Liu, Jian; Bai, Shiyang; Wang, Peiyuan; Zhong, Hua; Yang, Qihua; Li, Can
刊名	journal of materials chemistry
	2009
卷号	19 期号:45 页码:8580-8588
通讯作者	杨启华
产权排序	1;1
英文摘要	the nanocomposites formed by so3h-hollow-nanospheres and chiral amines are highly efficient catalysts for the direct asymmetric aldol reaction of cyclohexanone and 4-nitrobenzaldehyde. the catalyst showed 91% yield with 96% ee under optimized reaction conditions. so3h-hollow-nanospheres were synthesized by oxidation of thiol-hollow-nanospheres, which were fabricated through a one-pot co-condensation of 1,2-bis(trimethoxysilyl) ethane and 3-mercaptopropyltrimethoxysilane around f127 micelles in the presence of naoac. chiral amines could be combined with so3h-hollow-nanospheres through facile electrostatic interactions. the obtained nanocomposites showed a much higher reaction rate than the catalyst formed from the combination of chiral amine and so3h-mesoporous-organosilica (ribbon shaped particles with particle size of tens of micrometres) in the direct asymmetric aldol reaction. this is mainly attributed to the hollow spherical morphology and nano-scale particle size (16-20 nm) of the so3h-hollow-nanospheres.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; materials science
关键词[WOS]	hollow silica spheres ; highly efficient ; recyclable organocatalyst ; mesoporous organosilicas ; pyrrolidine sulfonamide ; supported proline ; base catalysis ; water ; polystyrene ; acid
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000271647300007
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/102101]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Gao, Jinsuo,Liu, Jian,Bai, Shiyang,et al. The nanocomposites of SO3H-hollow-nanosphere and chiral amine for asymmetric aldol reaction[J]. journal of materials chemistry,2009,19(45):8580-8588.
APA	Gao, Jinsuo.,Liu, Jian.,Bai, Shiyang.,Wang, Peiyuan.,Zhong, Hua.,...&Li, Can.(2009).The nanocomposites of SO3H-hollow-nanosphere and chiral amine for asymmetric aldol reaction.journal of materials chemistry,19(45),8580-8588.
MLA	Gao, Jinsuo,et al."The nanocomposites of SO3H-hollow-nanosphere and chiral amine for asymmetric aldol reaction".journal of materials chemistry 19.45(2009):8580-8588.