- fluorine, chlorine, bromine, and
iodine are
called fluoronium, chloronium,
bromonium, and iodonium, respectively. The 3-membered
cyclic variety commonly proposed...
- a
positive formal charge. At this
moment the
halogen ion is
called a "
bromonium ion" or "chloronium ion", respectively. When the
first bromine atom attacks...
-
Structure of a
bromonium ion...
- three-membered
bromonium ion The
alkene is
working as an
electron donor and
bromine as an electrophile. The three-membered
bromonium ion 2 consisted...
- N-bromosuccinimide (NBS), is
determined by the
formation of a
bromonium intermediate; the
electrophilic bromonium cation approaches the ring's less
sterically hindered...
- produced. The
reaction p****es
through a short-lived
strongly electrophilic bromonium intermediate. This is an
example of a
halogen addition reaction. Bromine...
- in 50%
aqueous DMSO, DME, THF, or tert-butanol at 0 °C.
Formation of a
bromonium ion and
immediate attack by
water gives strong Markovnikov addition and...
-
bromide dissolved in methanol. The
reaction involves the
formation of a
bromonium intermediate as follows: Then the
unused bromine is
reduced to bromide...
-
Structure of a
bromonium ion...
- (protonated
hydrogen fluoride) chloronium, H2Cl+ (protonated
hydrogen chloride)
bromonium, H2Br+ (protonated
hydrogen bromide) iodonium, H2I+ (protonated hydrogen...
