Chemistry Reference
In-Depth Information
arenes such as various substituted benzenes,
toluene and quinolines was successfully carried
out at high current densities with good current
efficiencies (66-90%) [53,54]. As shown in
Eq.
6.16
, monofluorotoluene and difluorotoluene
are formed successively with increasing
electricity, however, even when the electricity is
increased further trifluorotoluene is not formed
and ring fluorination starts [54].
(6.16)
Selective electrochemical formyl
hydrogen-exchange fluorination of aliphatic
aldehydes affords acyl fluorides using
Et
3
N-5HF [55]. Selective anodic fluorination of
cyclic unsaturated esters in Et
3
N-5HF is also
accomplished to provide ring-expansion
fluorinated products, as shown in
Eq. 6.17
[56,57].
(6.17)
Search WWH ::
Custom Search