-
chloride (C6H5COCl).
These compounds,
which are
treated as
sources of
acylium cations, are good
reagents for
attaching acyl
groups to
various substrates...
-
crystallography are
consistent with a
cyclohexadienyl cation structure. An
acylium ion is a
cation with the
formula RCO+. The
structure is
described as R−C≡O+...
-
Fischer esterification. An alternative,
involving the
formation of an
acylium ion,
becomes more
important when the
reaction takes place in concentrated...
-
acylations do not occur. Also,
there are no
carbocation rearrangements, as the
acylium ion is
stabilized by a
resonance structure in
which the
positive charge...
- with
various nucleophiles, such as water, bromide, chloride, and acetate.
Acylium ion, a type of
oxonium ion with the
structure R–C≡O+
Onium ion, a +1 cation...
- for
carbon monoxide,
which has a very short,
strong bond (112.8 pm), and
acylium ions, R–C≡O+ (typically 110-112 pm). Such
triple bonds have a very high...
-
Benzene is
sufficiently nucleophilic that it
undergoes substitution by
acylium ions and
alkyl carbocations to give
substituted derivatives. The most widely...
-
chloride group rearranges to the
phenolic oxygen atom. This
generates a free
acylium carbocation which reacts in a
classical electrophilic aromatic substitution...
- or
phosphorus pentoxide. This
reaction proceeds through electrophilic acylium ion
attack with a
spiro intermediate.
Mosuke Hayashi (1927). "A new isomerism...
- nitrile)
tertiary oxonium cations having one triple-bonded substitution, R≡O+
acylium ions, R−C≡O+ ↔ R−C+=O nitrosonium, N≡O+
cyclic tertiary oxonium cations...
