scholarly journals Selective Reduction of Carbonyl Compounds by Polymethylhydrosiloxane in the Presence of Metal Hydride Catalysts.

1999 ◽  
Vol 64 (22) ◽  
pp. 8432-8432
Author(s):  
Hubert Mimoun
Keyword(s):  
Metal Hydride ◽  
Carbonyl Compounds ◽  
Selective Reduction

Selective Reduction of Carbonyl Compounds via (Asymmetric) Transfer Hydrogenation on Heterogeneous Catalysts

Synthesis ◽  
2020 ◽  
Vol 52 (04) ◽  
pp. 504-520 ◽  
Author(s):  
Eszter Baráth
Keyword(s):  
Asymmetric Catalysis ◽  
Carbonyl Compounds ◽  
Heterogeneous Catalysts ◽  
Selective Reduction ◽  
Short Review ◽  
Transfer Hydrogenation ◽  
Chemical Transformations ◽  
Asymmetric Transfer Hydrogenation ◽  
Immobilized Catalysts ◽  
Main Challenge

Based on the ever-increasing demand for optically pure compounds, the development of efficient methods to produce such products is very important. Homogeneous asymmetric catalysis occupies a prominent position in the ranking of chemical transformations, with transition metals coordinated to chiral ligands being applied extensively for this purpose. However, heterogeneous catalysts have the ability to further extend the field of asymmetric transformations, because of their beneficial properties such as high stability, ease of separation and regeneration, and the possibility to apply them in continuous processes. The main challenge is to find potential synthetic routes that can provide a chemically and thermally stable heterogeneous catalyst having the necessary chiral information, whilst keeping the catalytic activity and enantioselectivity equally high (or even higher) than the corresponding homogeneous counterpart. Within this short review, the most relevant immobilization modes and preparative strategies depending on the support material used are summarized. From the reaction scope viewpoint, metal catalysts supported on the various solid materials studied in (asymmetric) transfer hydrogenation of carbonyl compounds are selected and represent the main focus of the second part of this overview.1 Introduction2 Synthesis of Chiral Heterogeneous Catalysts2.1 Immobilization of Homogeneous Asymmetric Catalysts2.1.1 Immobilization on Inorganic Supports2.1.2 Immobilization on Organic Polymers as Supports2.1.3 Immobilization on Dendrimer-Type Materials as Supports2.1.4 Self-Supported Chiral Catalysts: Coordination Polymers2.1.5 Immobilization Using Non-Conventional Media2.2 Chirally Modified Metal Surfaces for Heterogeneous Asymmetric Catalysis3 Examples of Transfer Hydrogenation on Heterogeneous Catalysts3.1 Silicon-Immobilized Catalysts3.2 Carbon-Material-Immobilized Catalysts3.3 Polymer-Immobilized Catalysts3.4 Magnetic-Nanoparticle-Immobilized Catalysts4 Conclusions

Efficient Role of Mg-ZnCl2 for Selective Reduction of α,β-Unsaturated Carbonyl Compounds in Aqueous Medium.

ChemInform ◽  
2005 ◽  
Vol 36 (29) ◽  
Author(s):  
Anil Saikia ◽  
Madan Gopal Barthakur ◽  
Romesh Chandra Boruah
Keyword(s):  
Aqueous Medium ◽  
Carbonyl Compounds ◽  
Selective Reduction

scholarly journals Selective Reduction of α,β-Unsaturated Carbonyl Compounds with Carbon Monoxide and Water Assisted by Selenium

1989 ◽  
Vol 62 (5) ◽  
pp. 1682-1684 ◽  
Author(s):  
Yutaka Nishiyama ◽  
Yasuhiko Makino ◽  
Sawako Hamanaka ◽  
Akiya Ogawa ◽  
Noboru Sonoda
Keyword(s):  
Carbon Monoxide ◽  
Carbonyl Compounds ◽  
Selective Reduction

Selective Reduction of Carbonyl Compounds with B-Cyclohexoxydiisopinocampheylborane.

ChemInform ◽  
2004 ◽  
Vol 35 (44) ◽  
Author(s):  
Jin Soon Cha ◽  
Seung Ho Jang ◽  
Sang Young Kwon ◽  
Oh Oun Kwon
Keyword(s):  
Carbonyl Compounds ◽  
Selective Reduction

A Metal-free Catalytic Reduction of α,β-unsaturated Carbonyl Compounds with Phenyldimethylsilane

2005 ◽  
Vol 2005 (7) ◽  
pp. 469-470 ◽  
Author(s):  
Ruizhu Mu ◽  
Zhengang Liu ◽  
Zhongquan Liu ◽  
Li Yang ◽  
Longmin Wu ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Carbonyl Compounds ◽  
Catalytic Reduction ◽  
Selective Reduction ◽  
Catalytic Amount ◽  
Metal Free

Selective reduction of α,β-unsaturated carbonyl compounds to the corresponding saturated ones by phenyldimethyl silane was promoted by a catalytic amount of I2O5 at ambient temperature in CH2Cl2.

Efficient Role of Mg-ZnCl2for Selective Reduction of α,β-Unsaturated ­Carbonyl Compounds in Aqueous Medium

Synlett ◽  
2005 ◽  
pp. 523-525 ◽  
Author(s):  
Romesh Chandra Boruah ◽  
Anil Saikia ◽  
Madan Gopal Barthakur
Keyword(s):  
Aqueous Medium ◽  
Carbonyl Compounds ◽  
Selective Reduction
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