- ROC(S)S2C(S)OR + 2 NaI
Acylation of
xanthates gives alkyl xanthogen esters (ROC(S)SC(O)R') and
related anhydrides.
Xanthates bind to
transition metal cations...
-
elimination reactions such as the Cope
elimination and
ester pyrolysis.
Xanthates typically undergo elimination from 120 to 200 °C,
while esters typically...
- of ores. It is a pot****ium salt of
ethyl xanthic acid. Many
xanthates are known.
Xanthate salts are
prepared by the
action of
alkoxides on
carbon disulfide...
-
obtained as the
anhydrous salt. Akin to the
preparation of most
xanthates,
sodium ethyl xanthate can be
prepared by
treating sodium ethoxide with
carbon disulfide:...
-
separation of ores
using the
flotation process. As
typical for
xanthates, pot****ium amyl
xanthate is
prepared by
reacting n-amyl
alcohol with
carbon disulfide...
-
certain dithioesters, trithiocarbonates,
xanthates (dithiocarbonates), and dithiocarbamates. Note 2: RAFT with
xanthates is also
known as
MADIX (macromolecular...
- example,
amines afford dithiocarbamates: 2 R2NH + CS2 → [R2NH2+][R2NCS2−]
Xanthates form
similarly from alkoxides: RONa + CS2 → [Na+][ROCS2−] This reaction...
-
efficient separation. With
increasing length of the
hydrocarbon chain in
xanthates, the
efficiency of the
hydrophobic action increases, but the selectivity...
-
organyl group).
Esters with the
formula R−O−C(=S)−S−R are also
called xanthates,
while esters with the
formula R−S−C(=S)−S−R are also
called thioxanthates...
-
treatment of that
solution with
carbon disulfide to give a
xanthate derivative. The
xanthate is then
converted back to a
cellulose fiber in a subsequent...
