Disclosed herein are the first examples of such an oxidation in which a series of aldehyde disulfides ( 1A- E) were converted to the corresponding symmetrical carboxylic acid disulfides ( 2A- E), utilizing sodium chlorite as the oxidant, and dimethyl sulf颅oxide as both a reaction solvent ...
Examples describe the oxidation of 31-O-acetyl-thymidine to the 51-aldehyde (characterized as a 2,4-dinitrophenyl hydrazone, as the 51-carboxylic acid, and by reduction and hydrolysis to thymidine); of 21,31-O-isopropylideneadenosine to the 51-aldehyde (which on hydrolysis gives adenosine 51-...
PROBLEM TO BE SOLVED: To provide a fixed bed reactor which is filled with a catalyst used on the synthesis of an unsaturated carboxylic acid by the gas phase catalytic oxidation of an unsaturated aldehyde at high filling density, is smal... 杉山 美栄治,田中 茂穂,近藤 正英,... 被引量...
The temperature and oxygen concentration are adjusted to maximize the production of the alcohol; however, some of the alcohol is further oxidized to the corresponding aldehyde and/or acid. This process is very valuable for the production of formaldehyde and acetaldehyde or mixed aldehydes from ...
57 、On the other hand, abnormally low TBA values can result if some of the malonaldehyde reacts with proteins in anoxidizingsystem.───另一方面,如果一些丙醛酸与氧化系统中的蛋白质反应会产生不正常的低TBA值。 58 、Hydrochemistry zoning fromoxidizingenvironment to reducing environment are obviously...
In the former method, an aldehyde to be used therein is oxidized to produce the corresponding carboxylic acid as by-product. Therefore, the separation and recovery step of the product after the reaction is complicated, thereby leading to be unsatisfactory in terms of cost. Also, in the latter...
Fungi Baker’s yeast(lab cultured) 1.25 45.87 0.5 __ 1 improvised by croslinking thecysteine with gluteraldehyde (Yu et al., 2007) Algae Sargassum sp. 0.6411 303 6 5.0i,e 1 0.2% formaldehyde treatment (Chen and Yang, 2005) Plants Shoot ofPhragmitesaustralis 1.79 ± 0.02 1...
Whenever you have a primary alcohol, what that means is that for a strong oxidizing agent, I would have taken it to a carboxylic acid like this. But for a weak oxidizing agent like PCC, I'm going to go to an aldehyde instead. So that means that I'm actually going to draw th...
The gas-phase O_2 oxidation of p-xylene to terephthaldehyde and p-tolualdehyde over CVD Fe/Mo/DBH, the liquid-phase O_2 oxidation of xylene to pure terephthalic acid (PTA) in the MC-type catalyst, Co/Mn/Br, the oxidative ... SE Park,SY Jin - International Conference on Carbon Dioxi...
contacting the second mixture with a second oxidizing agent at second oxidizing conditions to produce a second solid oxidation product comprising at least one of a second aromatic aldehyde, a second aromatic alcohol, a second aromatic ketone, and a second aromatic carboxylic acid; optionally, the ...