ChemInform Abstract: REDUCTION BY HYDROGEN TRANSFER PROCESSES. IV. REDUCTION OF UNSATURATED α,β-KETONES WITH FORMIC ACID-TRIETHYLAMINE AND PALLADIUM SUPPORTED CATALYSTS

1984 ◽  
Vol 15 (13) ◽  
Author(s):  
M. A. ARAMENDIA ◽  
V. BORAU ◽  
M. C. GOMEZ ◽  
C. JIMENEZ ◽  
J. M. MARINAS
Keyword(s):  
Formic Acid ◽  
Hydrogen Transfer ◽  
Supported Catalysts ◽  
Transfer Processes

Effect of Niacin on Mitochondria of Allium Cepa Root Cells

1967 ◽  
Vol 25 ◽  
pp. 78-79
Author(s):  
M. Arif Hayat
Keyword(s):  
Nicotinamide Adenine Dinucleotide ◽  
Hydrogen Transfer ◽  
Nicotinamide Adenine Dinucleotide Phosphate ◽  
Nicotinamide Adenine ◽  
Root Tips ◽  
Root Cells ◽  
Transfer Processes ◽  
Standard Procedures ◽  
A Cell ◽  
Critical Interest

Although it is recognized that niacin (pyridine-3-carboxylic acid), incorporated as the amide in nicotinamide adenine dinucleotide (NAD) or in nicotinamide adenine dinucleotide phosphate (NADP), is a cofactor in hydrogen transfer in numerous enzyme reactions in all organisms studied, virtually no information is available on the effect of this vitamin on a cell at the submicroscopic level. Since mitochondria act as sites for many hydrogen transfer processes, the possible response of mitochondria to niacin treatment is, therefore, of critical interest.Onion bulbs were placed on vials filled with double distilled water in the dark at 25°C. After two days the bulbs and newly developed root system were transferred to vials containing 0.1% niacin. Root tips were collected at ¼, ½, 1, 2, 4, and 8 hr. intervals after treatment. The tissues were fixed in glutaraldehyde-OsO4 as well as in 2% KMnO4 according to standard procedures. In both cases, the tissues were dehydrated in an acetone series and embedded in Reynolds' lead citrate for 3-10 minutes.

Disclosing the role of Gold on Palladium ‐ Gold alloyed supported catalysts in formic acid decomposition

ChemCatChem ◽  
2021 ◽  
Author(s):  
Alberto Villa ◽  
Ilaria Barlocco ◽  
Sofia Capelli ◽  
Xiuyuan Lu ◽  
Silvio Bellomi ◽  
...  
Keyword(s):  
Formic Acid ◽  
Supported Catalysts ◽  
Acid Decomposition ◽  
Formic Acid Decomposition

scholarly journals Insight into catalyst speciation and hydrogen co-evolution during enantioselective formic acid-driven transfer hydrogenation with bifunctional ruthenium complexes from multi-technique operando reaction monitoring

2019 ◽  
Vol 220 ◽  
pp. 45-57 ◽  
Author(s):  
Daniel B. G. Berry ◽  
Anna Codina ◽  
Ian Clegg ◽  
Catherine L. Lyall ◽  
John P. Lowe ◽  
...  
Keyword(s):  
Formic Acid ◽  
Maximum Rate ◽  
Hydrogen Transfer ◽  
Ruthenium Complexes ◽  
Transfer Hydrogenation ◽  
Reaction Monitoring ◽  
Optimal Conditions ◽  
Insight Into

Operando spectroscopy shows a transition from dehydrogenation to hydrogen transfer during the reaction, and allows measuring optimal conditions for maximum rate and efficiency.

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