Search results
Results from the WOW.Com Content Network
Alcohol oxidation is a collection of oxidation reactions in organic chemistry that convert alcohols to aldehydes, ketones, carboxylic acids, and esters. The reaction mainly applies to primary and secondary alcohols. Secondary alcohols form ketones, while primary alcohols form aldehydes or carboxylic acids. [1] A variety of oxidants can be used.
In enzymology, an alcohol oxidase (EC 1.1.3.13) is an enzyme that catalyzes the chemical reaction a primary alcohol + O 2 ⇌ {\displaystyle \rightleftharpoons } an aldehyde + H 2 O 2 Thus, the two substrates of this enzyme are primary alcohol and O 2 , whereas its two products are aldehyde and H 2 O 2 .
The direct oxidation of primary alcohols to carboxylic acids normally proceeds via the corresponding aldehyde, which is transformed via an aldehyde hydrate (R−CH(OH) 2) by reaction with water before it can be further oxidized to the carboxylic acid. Mechanism of oxidation of primary alcohols to carboxylic acids via aldehydes and aldehyde hydrates
The Jones oxidation. Jones reagent is a solution prepared by dissolving chromium trioxide in aqueous sulfuric acid. To effect a Jones oxidation, this acidic mixture is then added to an acetone solution of the substrate. Alternatively, potassium dichromate can be used in place of chromium trioxide. The oxidation is very rapid and quite ...
Alcohol dehydrogenases are often used for the synthesis of enantiomerically pure stereoisomers of chiral alcohols. Often, high chemo- and enantioselectivity can be achieved. One example is the alcohol dehydrogenase from Lactobacillus brevis (LbADH), which is described to be a versatile biocatalyst. [52]
What is sugar alcohol? According to Beaumont Health, sugar alcohol is a reduced-calorie sweetener. It is a carbohydrate with a chemical makeup similar to sugar — meaning it can activate ...
Ethanol can be made from mineral oil or from sugars or starches. Starches are cheapest. The starchy crop with highest energy content per acre is cassava, which grows in tropical countries. Thailand already had a large cassava industry in the 1990s, for use as cattle feed and as a cheap admixture to wheat flour.
In some cases, using chilled eggs can effectively work against forming a well-emulsified batter. Mixing eggs straight from the fridge into room-temperature butter causes a temperature disparity ...