benzene ring

American  

noun

Chemistry.

1. the graphic representation of the structure of benzene as a hexagon with a carbon atom at each of its points. Each carbon atom is united with an atom of hydrogen, one or more of which may be replaced to form benzene derivatives.

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benzene ring British  

noun

1. Also called: benzene nucleus.  the hexagonal ring of bonded carbon atoms in the benzene molecule or its derivatives See also Kekulé formula

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benzene ring Scientific  

1. A hexagonal arrangement of six carbon atoms, each atom bonded to its adjacent atoms by a single covalent bond, and by an unusual ring bond of electrons shared by all six carbon atoms. The benzene ring is a basic component of many organic compounds, especially the aromatic hydrocarbons. In benzene itself, each carbon atom is also bonded to a hydrogen atom; in derivatives of benzene, one or more of the hydrogen atoms is replaced by other atoms or groups of atoms.

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Etymology

Origin of benzene ring

First recorded in 1875–80

Example Sentences

Despite many efforts, most studies have reported photocycloadditions happening on quinoline's benzene ring side, while few have targeted the pyridine side.

From Science Daily • Jun. 19, 2024

They consist of an electron-abundant benzene ring fused to an electron-deficient pyridine ring; these electronically distinct rings can be modified independently by adjusting reaction conditions.

From Science Daily • Jun. 19, 2024

Examples of biological molecules that incorporate the benzene ring include some amino acids and cholesterol and its derivatives, including the hormones estrogen and testosterone.

From Textbooks • Jun. 9, 2022

Lonsdale published her 1928 findings on the benzene ring in the Proceedings of the Royal Society13.

From Nature • Nov. 4, 2019

In Chapter IV I explained that the anilin dyes are built up upon the benzene ring of six carbon atoms.

From Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries by Slosson, Edwin E.