- In
organic chemistry,
aromaticity is a
chemical property describing the way in
which a
conjugated ring of
unsaturated bonds, lone pairs, or
empty orbitals...
-
cycloheptatriene is not
particularly acidic (pKa 37) and the
anion is
considered nonaromatic. The
cyclopropenyl cation (C 3H+ 3) and the
triboracyclopropenyl dianion...
- Annulenes,
completely conjugated monocyclic hydrocarbons, may be aromatic,
nonaromatic or antiaromatic.
Compounds that have a monocyclic,
planar conjugated...
-
chemical reaction in
which an
aromatic system is
formed from a
single nonaromatic precursor.
Typically aromatization is
achieved by
dehydrogenation of...
- even
annulenes n
aromaticity 4
antiaromatic 6
aromatic 8
nonaromatic 10
nonaromatic 12
weakly antiaromatic 14
weakly aromatic 16
nonaromatic 18 aromatic...
- the ring is 7.86 ppm,
compared to the
normal range of 4.5-6.5 ppm for
nonaromatic alkenes. This
effect is of a
smaller magnitude than the corresponding...
- R.; Ménard, F.; Nantel, M.; Barabé, F. (2005). "Addition of
Tethered Nonaromatic Carbon Nucleophiles to
Chemoselectively Activated Amides". Org. Lett...
- be
regarded as aromatic, with 6 π-electrons,
while the 5H-isomer is
nonaromatic.
Phosphorus analogs do not have the same
electronic nature, with 1H-tetraphosphole...
-
shrubs or
small trees. They
generally rely on
alkaline soil. They are
nonaromatic, but
sometimes fetid. The
young stems and
leaves are
often densely covered...
- Butt,
Nicholas A.; Zhang,
Wanbin (2016). "Asymmetric
Hydrogenation of
Nonaromatic Cyclic Substrates".
Chemical Reviews. 116 (23): 14769–14827. doi:10.1021/acs...
