What is a carbon ester?
Esters are a functional group commonly encountered in organic chemistry. They are characterized by a carbon bound to three other atoms: a single bond to a carbon, a double bond to an oxygen, and a single bond to an oxygen. Esters react with nucleophiles at the carbonyl carbon.
What are the two types of esters?
Inorganic esters
- Phosphoric acid forms phosphate esters, e.g. triphenylphosphate.
- sulfuric acid forms sulfate esters, e.g., dimethylsulfate.
- nitric acid forms nitrate esters, e.g. methyl nitrate.
- boric acid forms borates, e.g. trimethylborate.
- carbonic acid forms carbonate esters, e.g. ethylene carbonate.
How many carbons are in an ester?
three carbon atoms
The part of the molecule derived from the carboxylic acid (in red) has three carbon atoms….Names of Esters.
| Condensed Structural Formula | Common Name | IUPAC Name |
|---|---|---|
| CH3COOCH2CH3 | ethyl acetate | ethyl ethanoate |
| CH3CH2COOCH2CH3 | ethyl propionate | ethyl propanoate |
What is the chemical structure of a carbonate ester?
Chemical structure of the carbonate ester group. A carbonate ester ( organic carbonate or organocarbonate) is an ester of carbonic acid. This functional group consists of a carbonyl group flanked by two alkoxy groups.
What do r 1 and your 2 stand for in esters?
Definition of Esters: Esters are organic chemical compounds whose structure has the general form: where the symbols R 1 and R 2 represent organic radicals. R 1 and R 2 are often carbon chains that can be either linear or branched and might also have other functional groups attached.
What are the two parts of an ester?
The diagram above shows that esters consist of two parts (often carbon chains), as labelled R 1 and R 2 at the top of this page. When working-out the name of an ester given its molecular structure, the first steps are:
How is an ester named after an alcohol?
Naming esters. When an alcohol reacts with a carboxylic acid an ester is formed. A new bond is formed between the oxygen atom of the hydroxyl group and the carbonyl carbon atom of the carboxylic acid. The suffix for an ester is -oate. The (a) structural, (b) condensed structural and (c) molecular formula representations of ethyl butanoate.