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Typical nitrones sources are
hydroxylamine oxidation or
condensation with
carbonyl compounds.
Secondary hydroxylamines oxidize to
nitrones in air over...
- cycloaddition, in
which the
nitrone acts as the 1,3-dipole, and the
alkene or
alkyne as the dipolarophile. When
nitrones are
combined with
either alkenes...
-
azides and
cyclooctynes (also
termed copper-free
click chemistry),
between nitrones and cyclooctynes, oxime/hydrazone
formation from
aldehydes and ketones...
- of the
nitrone dipole, and
acyclic and
endocyclic nitrones are all tolerated. This
large allowance provides a lot of
flexibility for
nitrone handle or...
- When
stored exposed to air for w****s,
secondary hydroxylamines degrade to
nitrones. N-organylhydroxylamines, R−NH−OH,
where R is an
organyl group, can be...
-
oxides (Criegee zwitterions)
Nitrile oxides (RCN−O)
Nitrous oxide (N2O)
Nitrones (R2CN(R)O) Some imines:
Azomethine imine Nitrilimines (RCN−NR, analogous...
- to use
nitrones as the 1,3-dipole
rather than
azides and has been used in the
modification of peptides. This
cycloaddition between a
nitrone and a cyclooctyne...
- The
rearrangement has also been
successfully performed on
haloimines and
nitrones.
Cyclic oximes and
haloimines yield lactams. The
Beckmann rearrangement...
- chemistry,
where cyclooctynes undergo cycloaddition reactions with
azides or
nitrones,
forming triazoles or isoxazolines, respectively. Baskin, J. M.; Prescher...
-
Lactams form by copper-catalyzed 1,3-dipolar
cycloaddition of
alkynes and
nitrones in the
Kinugasa reaction Diels-Alder
reaction between cyclopentadiene and...
