acyl

American  

[as-il, -eel] / ˈæs ɪl, -il /

adjective

Chemistry.

1. containing the acyl group.

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acyl British  

/ ˈeɪsaɪl /

noun

1. (modifier) of, denoting, or containing the monovalent group of atoms RCO-, where R is an organic group

   acyl group or radical

   acyl substitution

2. an organometallic compound in which a metal atom is directly bound to an acyl group

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acyl Scientific  

/ ăs′əl /

1. An organic compound containing the group RCO, where R is a halogen. Acyls are formed from organic acids by replacing the hydroxyl group (OH) within the carboxyl group (COOH) with a halogen. For example, acetyl chloride (CH ₃ COCl) is formed by replacing the hydroxyl group of acetic acid (CH ₃ COOH) with a chlorine atom. The names of acyls are formed by replacing the suffix –ic of the acid's name with –yl.

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Etymology

Origin of acyl

1895–1900; < German: an organic radical derived from an acid; see acid, -yl

Example Sentences

The method involves combining three chemicals: an amine "head," two alkyl epoxide "tails" and, finally, two acyl chloride "branched tails."

From Science Daily • Feb. 26, 2024

However, the search for the longer full pathway, the acyl chain which forms one crucial part of the molecule that stimulates immune cells, remained unfinished.

From Science Daily • Jan. 26, 2024

A particular ceramide’s character depends on the size of its acyl tail, a portion of the molecule that can contain from 12 to more than 26 carbons.

From Science Magazine • Mar. 15, 2023

The enzyme amino acyl tRNA synthetase would lose control over the amino acid.

From Textbooks • Jun. 9, 2022

From these acyl derivatives the elements of water are removed, either by simple heating or by boiling their aqueous solution; this elimination is accompanied by the formation of the azoxime ring.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" by Various