aldehyde radical

Thân thiện

A chemist writes the aldehyde radical on a whiteboard.

Definition

Noun: - The chemical group -CHO: A functional group in organic chemistry consisting of a carbonyl group (a carbon atom double-bonded to an oxygen atom) bonded to a hydrogen atom and to an R group (which can be a hydrogen or a hydrocarbon chain). It is the defining group of aldehydes.

Usage Notes

• The term "aldehyde radical" is a specific, technical term used almost exclusively in the field of chemistry. It refers to the molecular structure itself, not to a free radical in the reactive sense. In modern chemical nomenclature, the term "aldehyde group" or "formyl group" is more commonly used.

Examples of Usage

• Noun:
  • The presence of an aldehyde radical in the compound was confirmed by spectroscopic analysis.
  • Formaldehyde is the simplest molecule containing the aldehyde radical, where the R group is a hydrogen atom.
  • The reagent specifically targets the aldehyde radical, converting it to a carboxylic acid.

Advanced Usage

• In chemical reactions: The aldehyde radical is highly reactive and is a key site for nucleophilic addition reactions, such as oxidation, reduction, and condensation.
  • The Grignard reagent attacks the carbon of the aldehyde radical.

Variants and Related Words

• Aldehyde group (n): A more common synonym for "aldehyde radical."
• Formyl group (n): The specific name for the -CHO group when R is H; also used more generally.
• Carbonyl group (n): The C=O group, which is a component of the aldehyde radical, as well as ketones and carboxylic acids.

Synonyms

• Aldehyde group: The standard term for the -CHO functional group.
• Formyl group: Often used interchangeably, especially in systematic naming.

Related Phrases / Terms

• Aldehyde: The class of organic compounds that contain the aldehyde radical.
  • Benzaldehyde is an aldehyde with a benzene ring attached to the aldehyde group.

Học thuật

Noun

1. the chemical group -CHO

Từ đồng nghĩa

• aldehyde group