-
synthesised from
acenaphthylene and
anthranilic acid / amyl nitrite: The
oxyallyl diradical (OXA) is a
trimethylenemethane molecule with one
methylene group...
-
electrocyclization as
dictated by the Woodward-Hoffman rules. This
generates an
oxyallyl cation which undergoes an
elimination reaction to lose a β-hydrogen. Subsequent...
- π-system and a three-atom π-system to form a seven-membered ring.
Allyl or
oxyallyl cations (propenylium-2-olate) are
commonly used three-atom π-systems, while...
-
expansion of 2-isopropylcyclohexanone,
regiocontrolled hydroxylation of
oxyallyl (4+3) cycloadducts,
regioselectively from (R)-(+)-limonene, and from...
- 3-dipoles in
cycloadditions for
instance with
cyclic dienes such as furan. An
oxyallyl intermediate or
valence tautomer (formed by
cleavage of the C2-C3 bond)...
-
ketones leads to 2-
oxyallyl metal complexes,
which parti****te in [4+3] and [3+2]
cycloaddition reactions as the 2π component. 2-
Oxyallyl metal intermediates...
-
stepwise process, with
chloride anion leaving first to
produce a
zwitterionic oxyallyl cation before a
disrotatory electrocyclic ring
closure takes place to afford...
- characterization. However, the
reported spectrum was
later found to
match that of the
oxyallyl diradical, (H2C•)2CO,
formed by
rearrangement or
disproportionation under...
- 755–758 ^
Hexachloroacetone as a
Precursor for a Tetrachloro-substituted
Oxyallyl Intermediate: [4+3]
Cycloaddition to
Cyclic 1,3-Dienes
Baldur Föhlisch...
-
expansion of 2-isopropylcyclohexanone,
regiocontrolled hydroxylation of
oxyallyl (4+3) cycloadducts, from (R)-(+)-limonene
regioselectively by
several steps...
