Electrocatalytic Hydrogenation of unsaturated Aldehydes – Influence of External Electric Potential and Promotor Species on Carbonyl Group Activation

2021 ◽  
Vol MA2021-02 (24) ◽  
pp. 780-780
Author(s):  
Philipp Fischer ◽  
Yue Liu ◽  
Andreas Jentys ◽  
Johannes A Lercher
Keyword(s):  
Carbonyl Group ◽  
Electric Potential ◽  
Electrocatalytic Hydrogenation ◽  
Unsaturated Aldehydes

Photoisomerization of Bicyclo[3.1.1]heptan-2-ones in Methanol: Chemical Transformations of 'Verbanones'

1975 ◽  
Vol 53 (11) ◽  
pp. 1657-1669 ◽  
Author(s):  
Alex G. Fallis
Keyword(s):  
Carbonyl Group ◽  
Alkyl Radical ◽  
Membered Ring ◽  
Chemical Transformations ◽  
Photochemical Behavior ◽  
Unsaturated Aldehydes ◽  
Cyclopropyl Ketones

The products (predominantly unsaturated aldehydes) from photolysis in methanol of a series of 6,6-dimethylbicyclo[3.1.1]heptan-2-ones are reported. These results are rationalized on the basis of stereochemical interactions and the apparent preference for cleavage to occur adjacent to the less highly substituted α-carbon but more stable alkyl radical. It is concluded that the photochemical behavior of α-cyclobutyl ketones displays a closer parallel to the α-cyclopropyl ketones than previously recognized and that cleavage will occur preferentially on the side of the carbonyl group remote from the four-membered ring whenever possible. The synthetic steps involved in the preparation of the ketones from 'pinene' precursors are described.

Development and Scale-up of Continuous Electrocatalytic Hydrogenation of Functionalized Nitro Arenes, Nitriles, and Unsaturated Aldehydes

2019 ◽  
Vol 23 (9) ◽  
pp. 1803-1812 ◽  
Author(s):  
Jonathan D. Egbert ◽  
Edwin C. Thomsen ◽  
Stacy A. O’Neill-Slawecki ◽  
Douglas M. Mans ◽  
David C. Leitch ◽  
...  
Keyword(s):  
Scale Up ◽  
Electrocatalytic Hydrogenation ◽  
Unsaturated Aldehydes

THE TOXICITY AND DETOXIFICATION OF α, β-UNSATURATED ALDEHYDES

1999 ◽  
Vol 14 (supplement) ◽  
pp. 74-75
Author(s):  
Akira HIRATSUKA ◽  
Kenichiro HIROSE ◽  
Hiroaki NAKANO ◽  
Tadashi WATABE
Keyword(s):  
Unsaturated Aldehydes

Asymmetric Peroxidation of α,β-Unsaturated Aldehydes under Diarylprolinol Ether Catalysis

2017 ◽  
Vol 21 (19) ◽  
Author(s):  
K. O'Reilly ◽  
M. K. Gupta ◽  
H. Gandhi ◽  
V. P. Kumar ◽  
T. P. O'Sullivan
Keyword(s):  
Unsaturated Aldehydes

Polarographic reduction of α-(4-ethylbenzoyl)-α,β-dibromopropionic acid on mercury dropping electrode

1979 ◽  
Vol 44 (4) ◽  
pp. 1318-1323
Author(s):  
Miloslava Počtová
Keyword(s):  
Electrochemical Reduction ◽  
Carbonyl Group ◽  
Polarographic Reduction ◽  
Polarographic Wave ◽  
Intermediate Products ◽  
Active Intermediate

A mechanism of the electrochemical reduction of β-(4-ethylbenzoyl)-α,β-dibromopropionic acid is suggested based on the results of classical polarography and polarography with Kalousek's switch and on the identification of the polarographically active intermediate products. The substance converts to β-4-ethylbenzoylacrylic acid on the electrochemical elimination of the bromine atoms, and the latter acid is reduced further to β-4-ethylbenzoylpropionic acid. The most negative polarographic wave corresponds to the reduction of the carbonyl group in the benzoyl part of the last acid.

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