Acyl
intermediates include
acyl anions,
acyl radicals and
acyl cations (synonym
acylium ions) which are formally derived from
oxoacidsRkE(=O)l(OH)m
(
l ≠ 0)
by removal of a hydroxyl
cationHO+
, a hydroxyl radical
HO.
or a hydroxyl
anionHO−
, respectively, and replacement analogues of such intermediates.
Acyl anions, radicals and cations can formally be represented by canonical forms having a negative
charge, an unpaired electron or a positive charge on the acid-generating element of
the oxoacid.
Acyl anions. E.g.
Acyl radicals. E.g.
Acyl cations. E.g.
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1312
PAC, 1993, 65, 1357
(Revised nomenclature for radicals, ions, radical ions and related species (IUPAC
Recommendations 1993))
on page 1357
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
