Novel chiral gallium Lewis acid catalysts with semi-crown ligands for aqueous asymmetric Mukaiyama aldol reactions

2002 ◽  
pp. 2994-2995 ◽  
Author(s):  
Hui-Jing Li ◽  
Hong-Yu Tian ◽  
Yong-Jun Chen ◽  
Dong Wang ◽  
Chao-Jun Li
Keyword(s):  
Lewis Acid ◽  
Aldol Reactions ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
Mukaiyama Aldol

Novel Chiral Gallium Lewis Acid Catalysts with Semi-Crown Ligands for Aqueous Asymmetric Mukaiyama Aldol Reactions.

ChemInform ◽  
2003 ◽  
Vol 34 (15) ◽  
Author(s):  
Hui-Jing Li ◽  
Hong-Yu Tian ◽  
Yong-Jun Chen ◽  
Dong Wang ◽  
Chao-Jun Li
Keyword(s):  
Lewis Acid ◽  
Aldol Reactions ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
Mukaiyama Aldol

Chiral dendritic bis(oxazoline) copper(II) complexes as Lewis acid catalysts for enantioselective aldol reactions in aqueous media

2003 ◽  
Vol 44 (17) ◽  
pp. 3535-3538 ◽  
Author(s):  
Bai-Yuan Yang ◽  
Xiao-Min Chen ◽  
Guo-Jun Deng ◽  
Yi-Li Zhang ◽  
Qing-Hua Fan
Keyword(s):  
Lewis Acid ◽  
Aqueous Media ◽  
Aldol Reactions ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts

scholarly journals Hydroxyapatite-Bound Cationic Ruthenium Complexes as Novel Heterogeneous Lewis Acid Catalysts for Diels—Alder and Aldol Reactions.

ChemInform ◽  
2004 ◽  
Vol 35 (3) ◽  
Author(s):  
Kohsuke Mori ◽  
Takayoshi Hara ◽  
Tomoo Mizugaki ◽  
Kohki Ebitani ◽  
Kiyotomi Kaneda
Keyword(s):  
Lewis Acid ◽  
Ruthenium Complexes ◽  
Diels Alder ◽  
Aldol Reactions ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts

Hydroxyapatite-Bound Cationic Ruthenium Complexes as Novel Heterogeneous Lewis Acid Catalysts for Diels−Alder and Aldol Reactions

2003 ◽  
Vol 125 (38) ◽  
pp. 11460-11461 ◽  
Author(s):  
Kohsuke Mori ◽  
Takayoshi Hara ◽  
Tomoo Mizugaki ◽  
Kohki Ebitani ◽  
Kiyotomi Kaneda
Keyword(s):  
Lewis Acid ◽  
Ruthenium Complexes ◽  
Diels Alder ◽  
Aldol Reactions ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts

Chiral Anionic Surfactants for Asymmetric Mukaiyama Aldol-Type Reaction in Water

2003 ◽  
Vol 2003 (3) ◽  
pp. 153-156 ◽  
Author(s):  
Hui Jing Li ◽  
Hong Yu Tian ◽  
Yong Jun Chen ◽  
Dong Wang ◽  
Chao Jun Li
Keyword(s):  
Lewis Acid ◽  
Anionic Surfactants ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
Asymmetric Aldol ◽  
Type Reaction ◽  
Mukaiyama Aldol ◽  
Derivatives Of ◽  
Reaction In Water ◽  
Better Than

Sulfonate derivatives of chiral 1,1′-binaphthol were used as chiral anionic surfactants in asymmetric aldol-type reaction in water to give aldol adducts with moderate to good diastereo- and enantioselectivities; Ga(OTf)3 and Cu(OTf)2 were better than Sc(OTf)3 as Lewis acid catalysts.

Hydrothermal synthesis of Sn-Beta zeolites in F−-free medium

2018 ◽  
Vol 5 (11) ◽  
pp. 2763-2771 ◽  
Author(s):  
Hao Xu ◽  
Xudong Wang ◽  
Peng Ji ◽  
Haihong Wu ◽  
Yejun Guan ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Lewis Acid ◽  
Crystal Size ◽  
Acid Catalysts ◽  
Free Medium ◽  
Lewis Acid Catalysts ◽  
Structure Directing Agent ◽  
Highly Active ◽  
Beta Zeolites

Sn-Beta zeolites, with high Sn content and smaller crystal size, hydrothermally synthesized in F−-free medium using N-cyclohexyl-N,N-dimethylcyclohexanaminium hydroxide as the structure-directing agent with the assistance of Na+ and seed, are highly active as Lewis acid catalysts.

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