methylene etymology

Etymology of "Methylene"

The term "methylene" is derived from the Greek word "methylos," meaning "intoxicating liquor," and the suffix "-ene," which denotes an unsaturated hydrocarbon.

Meaning and Origin

• Meaning: Methylene refers to a specific hydrocarbon group composed of two hydrogen atoms (H) and a carbon atom (C). It is represented by the formula CH2.
• Origin: The term was first coined by the German chemist August Kekulé in 1858. Kekulé proposed the concept of chemical structure, which involved the arrangement of atoms in molecules. He used the term "methylene" to describe the basic unit of unsaturated hydrocarbons, which he believed could join together to form larger molecules.

Usage

• Methylene is a divalent functional group that is commonly found in organic chemistry.
• It is the building block for a wide range of organic compounds, including alkenes, aldehydes, ketones, and alcohols.
• Methylene groups can participate in various chemical reactions, such as addition, substitution, and cyclization.

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