scholarly journals Chiral Modification of the Tetrakis(pentafluorophenyl)borate Anion with Myrtanyl Groups

2019 ◽  
Vol 2019 (43) ◽  
pp. 7240-7246
Author(s):  
Phillip Pommerening ◽  
Martin Oestreich
Keyword(s):  
Chiral Modification

Chiral modification of adamantane

2002 ◽  
Vol 43 (23) ◽  
pp. 4145-4147 ◽  
Author(s):  
Masatoshi Shibuya ◽  
Takahiko Taniguchi ◽  
Michiyasu Takahashi ◽  
Kunio Ogasawara
Keyword(s):  
Chiral Modification

From Supramolecular Chirogenic Systems towards Prospective Functional Materials

2013 ◽  
Vol 699 ◽  
pp. 87-91 ◽  
Author(s):  
Victor Borovkov
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Supramolecular Chemistry ◽  
Functional Materials ◽  
Practical Application ◽  
Research Groups ◽  
Supramolecular Chirality ◽  
Potential Applications ◽  
Chiral Modification ◽  
Asymmetric Catalyst

This paper presents a succinct overview of recent advances of our research groups in the field of supramolecular chirogenic systems in the solution and in the solid state and consequent progress towards various functional materials having potential applications in different areas of science and technology. The phenomenon of supramolecular chirality, which is a smart combination of supramolecular chemistry and chiral science, is demonstrated with one of the most representative structural motifs amongst existing chirogenic systems, which is based upon the ethane-bridged bis-porphyrinoids. Further progress towards various functional materials is made upon preparation of different thin-films and nanostructures using the same bis-porphyrin architecture. For more practical application of functional materials chiral modification of metal surface is carried out resulting in effective asymmetric catalyst.

A Simple Approach toward Enantiomerically Pure Fischer Carbene Complexes of Chromium and Molybdenum:  Chiral Modification of the Metal Fragment

2003 ◽  
Vol 22 (8) ◽  
pp. 1756-1760 ◽  
Author(s):  
José Barluenga ◽  
Kilian Muñiz ◽  
Miguel Tomás ◽  
Alfredo Ballesteros ◽  
Santiago García-Granda
Keyword(s):  
Simple Approach ◽  
Fischer Carbene Complexes ◽  
Carbene Complexes ◽  
Enantiomerically Pure ◽  
Fischer Carbene ◽  
Chiral Modification ◽  
Metal Fragment

1-(1-Naphthyl)Ethylamine Adsorption on Platinum Surfaces: On the Mechanism of Chiral Modification in Catalysis

2008 ◽  
Vol 130 (44) ◽  
pp. 14597-14604 ◽  
Author(s):  
Ilkeun Lee ◽  
Zhen Ma ◽  
Shinji Kaneko ◽  
Francisco Zaera
Keyword(s):  
Platinum Surfaces ◽  
Chiral Modification

Fundamental Aspects of the Chiral Modification of Platinum with Peptides: Asymmetric Induction in Hydrogenation of Activated Ketones

2009 ◽  
Vol 113 (34) ◽  
pp. 15246-15259 ◽  
Author(s):  
Cecilia Mondelli ◽  
Angelo Vargas ◽  
Gianluca Santarossa ◽  
Alfons Baiker
Keyword(s):  
Asymmetric Induction ◽  
Chiral Modification

In situ Chiral Modification of Nickel Catalysts for Enantioselective Hydrogenation of Methyl Acetoacetate

2005 ◽  
Vol 70 (10) ◽  
pp. 1642-1652 ◽  
Author(s):  
Lukáš Bartek ◽  
Petr Klusoň ◽  
Libor Červený
Keyword(s):  
Raney Nickel ◽  
Asymmetric Hydrogenation ◽  
Enantioselective Hydrogenation ◽  
Nickel Catalysts ◽  
Methyl Acetoacetate ◽  
Repeated Use ◽  
Series Of Experiments ◽  
Chiral Modification ◽  
Characteristic Features

Chiral modifications of SiO2-supported and Raney nickel catalysts were studied. The catalysts were employed in asymmetric hydrogenation of methyl acetoacetate (MAA) to (R)- and (S)-enantiomers of methyl 3-hydroxybutanoate. The effects of modification parameters such as type and concentration of modifier; presence of a co-modifier and other additives, pH of modification solution on the enantioselectivity of MAA hydrogenation were discussed. Characteristic features of the in situ modification of Ni/SiO2 were also evaluated and the results obtained were compared with the conventional (premodification) approach. Parameters for the conventional and in situ methods were optimised in a series of experiments for both types of catalysts. The in situ modified Ni/SiO2 was found specifically suitable for repeated use due to virtually no decrease in selectivity and activity.

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