Omförestering
Sign in to saveTransesterification is the process of exchanging the organic functional group R″ of an ester with the organic group R' of an alcohol. These reactions are often catalyzed by the addition of an acid or base catalyst. Strong acids catalyze the reaction by donating a proton to the carbonyl group, thus making it a more potent electrophile. Bases catalyze the reaction by removing a proton from the alcohol, thus making it more nucleophilic. The reaction can also be accomplished with the help of enzymes, particularly lipases (one example is the lipase E.C.3.1.1.3).
Wikidata facts
- Instance of
- substitution reaction
- Subclass of
- esterification
- Image
- General transesterification mechanism.png
Sources (2)
via Wikidata · CC0
Article · Svenska
Omförestring, även omestring eller transesterifiering, är inom organisk kemi en process som innebär utbyte av den organiska gruppen R2 hos en ester mot den organiska gruppen R3 hos en alkohol enligt: Dessa reaktioner katalyseras ofta genom tillsats av en syra- eller baskatalysator. Reaktionen kan också genomföras med hjälp av enzymer (biokatalysatorer).
Abstract from DBpedia / Wikipedia · CC BY-SA