-
Product of the
reductive coupling of
styrene with lithium, 1,4-
dilithio-1,4-diphenylbutane. In the
original work,
Szwarc studied the
analogous disodium...
-
oxidation state. 1,1-Dibutylstannole is a pale
yellow oil
prepared from 1,4-
dilithio-1,3-butadiene and
dibutyltin dichloride. 1,1-Dimethyl-2,3,4,5-tetraphenyl-1H-stannole...
- po****r weak acid is biphenyl-4-methanol,
which gives a
deeply colored dilithio derivative at the end point.
Butyllithium is prin****lly
valued as an initiator...
-
second lithiation, in
contrast to the
behavior of phenyllithium.
These 1,8-
dilithio derivatives are
precursors to a host of peri-naphthalene derivatives. With...
-
lithium to give the ortho-lithio derivatives, i.e., ortho-lithiation.
These dilithio compounds are
poised for
reactions with many electrophiles.
Neither the...
- a 1,3-, 1,4-, etc. dihalide. In some
cases the
dialkylating group is a
dilithio reagent, such as 1,5-dilithiopentane. For
generating spirocycles containing...
- copper(I)
bromide mediated cyclodimerisation of 1,2,3,4-tetraethyl-1,4-
dilithio-1,3-butadiene.
Because COT is
unstable and
easily forms explosive organic...
-
Double deprotonation of the
dihydrofulvalene with n-butyllithium
gives the
dilithio derivative,
which is
oxidized by oxygen.
Fulvalene was spectroscopically...
- of 50–93%, by
reacting 1,4-diiodo-1,2,3,4-tetraphenylbutadiene or 1,4-
dilithio-1,2,3,4-tetraphenylbutadiene with phenyl****nous
dichloride (C6H5AsCl2)...
-
followed by lithium-bromide
exchange using n-BuLi.
Treatment of the
resulting dilithio compound with
chlorodiphenylphosphine completes the synthesis. Z. Freixa...
