To develop economical and phosphorus-free catalysts for hydrogenation of ketones, three new complexes, [Ni(1R,2Rdpen) 2 (H 2 O)Cl] 2 Cl 2 โข 2Et 2 O (1), [Ni(1R,2R-dpen)(phen)(CH 3 OH) 2 ]Cl 2 โข2CH 3 OH (2) and [Ni(1,8-dan) 2 (DMF)Cl] 2 Cl 2 โข 3H 2 O (3), and three reported compounds, [Ni(opda)(phen)
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Crystal structure of chiral binaphthol lanthanide complexes and their catalysis in asymmetric transfer hydrogenation of acetophenone
โ Scribed by Pengfei Yan; Chunhong Nie; Guangming Li; Guangfeng Hou; Wenbin Sun; Jinsheng Gao
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 139 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0268-2605
- DOI
- 10.1002/aoc.1058
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A number of new chiral monomeric binaphthyl Schiff-base ligands H 2 L [where H 2 L = 2,2ะ-bis(3-R 1 -5-R 2 -2-hydroxybenzylideneamino)-1,1ะ-binaphthyl] and a series of chiral copper(II) complexes [CuL] were prepared in good or nearly quantitative yields. Some of the free ligands and the [CuL] comple