ChemInform Abstract: Novel Method of Synthesis of Quaternary Ammonium Tribromides and Investigation of Catalytic Role of Benzyltrimethylammonium Tribromide in Oxidation of Alcohols to Carbonyl Compounds.

ChemInform ◽  
2013 ◽  
Vol 44 (31) ◽  
pp. no-no
Author(s):  
Madhudeepa Dey ◽  
Siddhartha Sankar Dhar ◽  
Mukul Kalita
Keyword(s):  
Quaternary Ammonium ◽  
Carbonyl Compounds ◽  
Oxidation Of Alcohols ◽  
Catalytic Role ◽  
Novel Method

scholarly journals UV light promoted ‘Metal’/‘Additive’-free oxidation of alcohols: investigating the role of alcohols as electron donors

RSC Advances ◽  
2019 ◽  
Vol 9 (62) ◽  
pp. 36198-36203 ◽  
Author(s):  
Preet Kamal Walia ◽  
Manik Sharma ◽  
Manoj Kumar ◽  
Vandana Bhalla
Keyword(s):  
Carbonyl Compounds ◽  
Uv Light ◽  
Electron Donors ◽  
Oxidation Of Alcohols ◽  
Oxidative Transformations ◽  
Free Oxidation ◽  
Metal Additive

The present study demonstrates the important role of alcohols themselves as electron donors for their oxidative transformations to the corresponding carbonyl compounds in the absence of any metal/oxidant and external photosensitizer.

scholarly journals Syntheses, characterisation, and catalytic role of (η5-C5Me5)Rh(iii) guanidinato complexes in transfer hydrogenation (TH) and TH–etherification

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 33890-33904 ◽  
Author(s):  
Robin Kumar ◽  
Natesan Thirupathi
Keyword(s):  
Catalytic Activity ◽  
Carbonyl Compounds ◽  
Transfer Hydrogenation ◽  
Catalytic Role

Complex 3 has been synthesised and its catalytic activity in base assisted and base free transfer hydrogenation (TH) of a variety of carbonyl compounds and TH–etherification of substrates such as 2-hydroxy-1-naphthaldehyde have been achieved.

Kinetic investigation into the chemoselective hydrogenation of α,β-unsaturated carbonyl compounds catalyzed by Ni(0) nanoparticles

2017 ◽  
Vol 46 (15) ◽  
pp. 5082-5090 ◽  
Author(s):  
Laíze Zaramello ◽  
Brunno L. Albuquerque ◽  
Josiel B. Domingos ◽  
Karine Philippot
Keyword(s):  
Catalytic Activity ◽  
Carbonyl Compounds ◽  
Kinetic Investigation ◽  
Olefin Hydrogenation ◽  
Nickel Nanoparticle ◽  
Chemoselective Hydrogenation ◽  
Catalytic Role

Nickel nanoparticle chemoselective hydrogenation catalytic activity revealed: The catalytic role of high active chemoselective magnetic Ni(0) nanocatalysts for olefin hydrogenation of α,β-unsaturated carbonyl compounds was investigated by kinetic means.

scholarly journals Robust and efficient hydrogenation of carbonyl compounds catalysed by mixed donor Mn(I) pincer complexes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Wenjun Yang ◽  
Ivan Yu. Chernyshov ◽  
Robin K. A. van Schendel ◽  
Manuela Weber ◽  
Christian Müller ◽  
...  
Keyword(s):  
Noble Metal ◽  
Crucial Role ◽  
Carbonyl Compounds ◽  
Catalytic Performance ◽  
Hydrogen Atmosphere ◽  
Pincer Complexes ◽  
Catalyst Activation ◽  
Hydrogenation Catalysts ◽  
Induction Times

AbstractAny catalyst should be efficient and stable to be implemented in practice. This requirement is particularly valid for manganese hydrogenation catalysts. While representing a more sustainable alternative to conventional noble metal-based systems, manganese hydrogenation catalysts are prone to degrade under catalytic conditions once operation temperatures are high. Herein, we report a highly efficient Mn(I)-CNP pre-catalyst which gives rise to the excellent productivity (TOF° up to 41 000 h−1) and stability (TON up to 200 000) in hydrogenation catalysis. This system enables near-quantitative hydrogenation of ketones, imines, aldehydes and formate esters at the catalyst loadings as low as 5–200 p.p.m. Our analysis points to the crucial role of the catalyst activation step for the catalytic performance and stability of the system. While conventional activation employing alkoxide bases can ultimately provide catalytically competent species under hydrogen atmosphere, activation of Mn(I) pre-catalyst with hydride donor promoters, e.g. KHBEt3, dramatically improves catalytic performance of the system and eliminates induction times associated with slow catalyst activation.

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