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Company in Japan. Mitsui Chemicals in Japan
also produces NF
3
by electrochemical
perfluorination of NH
3
[12]. NF
3
is used as an
etchant and cleaning gas for apparatus used in
the chemical vapour deposition (CVD)
technique.
8.2.5 Other Examples
8.2.5.1 3,6-Dichloropicolic Acid
The Daw Chemical Company have
commercialized the electrochemical reduction
of 3,4,5,6-tetrachloropicolic acid in aqueous
solution to 3,4-dichloropicolic acid, which is
useful as a precursor to agrochemicals (
Eq. 8.8
)
[13]. As explained in
Chapter 4
(
Fig. 4.5
), the
high regioselectivity is attributed to the
controlled orientation of the substrate at the
cathode surface owing to the dipole moment of
the molecule.
(8.8)
8.2.5.2 β-Lactam Derivative
The Otsuka Chemical Company have
commercialized the electrosynthesis of the
antibiotic substance
β
-lactam derivative
(GCLE), as shown in
Eq. 8.9
. The electrolysis is
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