ChemInform Abstract: Design Concepts for Developing Highly Efficient Chiral Bisphosphine Ligands in Rhodium-Catalyzed Asymmetric Hydrogenations

ChemInform ◽  
2010 ◽  
Vol 23 (37) ◽  
pp. no-no
Author(s):  
K. INOGUCHI ◽  
S. SAKURABA ◽  
K. ACHIWA
Keyword(s):  
Design Concepts ◽  
Highly Efficient ◽  
Asymmetric Hydrogenations

Design Concepts for Developing Highly Efficient Chiral Bisphosphine Ligands in Rhodium-Catalyzed Asymmetric Hydrogenations

Synlett ◽  
1992 ◽  
Vol 1992 (03) ◽  
pp. 169-178 ◽  
Author(s):  
Kiyoshi Inoguchi ◽  
Shunji Sakuraba ◽  
Kazuo Achiwa
Keyword(s):  
Design Concepts ◽  
Highly Efficient ◽  
Asymmetric Hydrogenations

New chiral phosphorus ligands with spirobiindane backbone for asymmetric hydrogenations

2005 ◽  
Vol 77 (12) ◽  
pp. 2121-2132 ◽  
Author(s):  
Jian-Hua Xie ◽  
Shou-Fei Zhu ◽  
Yu Fu ◽  
Ai-Guo Hu ◽  
Qi-Lin Zhou
Keyword(s):  
Phosphorus Ligands ◽  
Highly Efficient ◽  
Asymmetric Hydrogenations

Chiral spiro phosphorus ligands including monophosphoramidites and diphosphines, which contained 1,1'-spirobiindane as a backbone, were designed and synthesized. These spiro ligands were proven to be highly efficient for rhodium- and ruthenium-catalyzed asymmetric hydrogenations of prochiral olefins and ketones with excellent enantioselectivities.

ChemInform Abstract: Synthesis of Chiral Rh-BICHEP Complexes, Highly Efficient Catalysts for Asymmetric Hydrogenations.

ChemInform ◽  
2010 ◽  
Vol 23 (21) ◽  
pp. no-no
Author(s):  
T. CHIBA ◽  
A. MIYASHITA ◽  
H. NOHIRA ◽  
H. TAKAYA
Keyword(s):  
Highly Efficient ◽  
Asymmetric Hydrogenations

Synthesis of chiral Rh-bichep complexes, highly efficient catalysts for asymmetric hydrogenations

1991 ◽  
Vol 32 (36) ◽  
pp. 4745-4748 ◽  
Author(s):  
Takeshi Chiba ◽  
Akira Miyashita ◽  
Hiroyuki Nohira ◽  
Hidemasa Takaya
Keyword(s):  
Highly Efficient ◽  
Asymmetric Hydrogenations

High resolution at low voltage: A new approach

1989 ◽  
Vol 47 ◽  
pp. 76-77
Author(s):  
Arthur V. Jones
Keyword(s):  
Low Voltage ◽  
Emission Sources ◽  
New Approach ◽  
Design Concepts ◽  
Probe Diameter ◽  
Low Voltage Operation ◽  
Sufficient Intensity ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes ◽  
Immersion Type

With the introduction of field-emission sources and “immersion-type” objective lenses, the resolution obtainable with modern scanning electron microscopes is approaching that obtainable in STEM and TEM-but only with specific types of specimens. Bulk specimens still suffer from the restrictions imposed by internal scattering and the need to be conducting. Advances in coating techniques have largely overcome these problems but for a sizeable body of specimens, the restrictions imposed by coating are unacceptable.For such specimens, low voltage operation, with its low beam penetration and freedom from charging artifacts, is the method of choice.Unfortunately the technical dificulties in producing an electron beam sufficiently small and of sufficient intensity are considerably greater at low beam energies — so much so that a radical reevaluation of convential design concepts is needed.The probe diameter is usually given by

Highly efficient and selective photocatalytic CO2 to CO conversion in aqueous solution

2020 ◽  
Vol 56 (27) ◽  
pp. 3851-3854 ◽  
Author(s):  
Xiaomin Chai ◽  
Hai-Hua Huang ◽  
Huiping Liu ◽  
Zhuofeng Ke ◽  
Wen-Wen Yong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Performance ◽  
Aqueous Media ◽  
Highly Efficient ◽  
Co Conversion

A Co-based complex displayed the highest photocatalytic performance for CO2 to CO conversion in aqueous media.

Tuning the pore structures and photocatalytic properties of a 2D covalent organic framework with multi-branched photoactive moieties

Nanoscale ◽  
2020 ◽  
Vol 12 (30) ◽  
pp. 16136-16142
Author(s):  
Xuan Wang ◽  
Ming-Jie Dong ◽  
Chuan-De Wu
Keyword(s):  
Photocatalytic Properties ◽  
Effective Strategy ◽  
Covalent Organic Framework ◽  
Highly Efficient ◽  
Pore Structures ◽  
Local Connection ◽  
Organic Framework

An effective strategy to incorporate accessible metalloporphyrin photoactive sites into 2D COFs by establishing a 3D local connection for highly efficient photocatalysis was developed.

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