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Rieche formylation
Rieche
formylation
is
a type
of
formylation reaction
. The
substrates
are
electron
rich
aromatic compounds
, such as
mesitylene
or
phenols
, with
dichloromethyl methyl ether
acting
as the
formyl
source
. The
catalyst
is
titanium tetrachloride
and the
workup
is
acidic
. The
reaction
is named after
Alfred Rieche
who
discovered
it in
1960
.