Definition

1. Noun:
   • A type of organic compound: An alkyl halide is a compound derived from an alkane by replacing one or more hydrogen atoms with halogen atoms (fluorine, chlorine, bromine, or iodine).

Usage

• Alkyl halides are important in organic chemistry. They are often used as intermediates in chemical synthesis and as solvents.
• The general structure of an alkyl halide is R-X, where R represents an alkyl group and X represents a halogen atom.

Examples

• Noun:
  • Chloromethane (CH₃Cl) is a simple alkyl halide.
  • The reactivity of an alkyl halide depends on the halogen and the structure of the alkyl group.
  • Alkyl halides can undergo substitution and elimination reactions.

Advanced Usage

• "Primary alkyl halide": An alkyl halide where the carbon atom bonded to the halogen is attached to only one other carbon atom.
  • A primary alkyl halide like 1-bromopropane typically undergoes SN2 reactions readily.
• "Secondary alkyl halide": An alkyl halide where the carbon atom bonded to the halogen is attached to two other carbon atoms.
• "Tertiary alkyl halide": An alkyl halide where the carbon atom bonded to the halogen is attached to three other carbon atoms.

Variants and Related Words

• Haloalkane: A synonym for alkyl halide.
• Halogenoalkane: Another synonym, more commonly used in British English.
• Alkyl chloride/bromide/iodide: Terms specifying the halogen present (e.g., methyl bromide is an alkyl bromide).

Synonyms

• Haloalkane
• Halogenoalkane

Related Phrases/Concepts

• Nucleophilic substitution: A common reaction type for alkyl halides.
• Elimination reaction: Another common reaction pathway for alkyl halides, often competing with substitution.
• Grignard reagent: An organometallic compound typically prepared from an alkyl halide.

Noun

1. organic compound in which halogen atoms have been substituted for hydrogen atoms in an alkane