Acme
(BusyBee)
03-08-03 06:00
No 414737
      Formylation of 1,4 disubstituted benzene derivs
(Rated as: good idea!)
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Patent US5294744

They use 4-Trifluoromethoxyanisole so it should work well with 1,4-DiMeObenzene,

although TFA is out of reach for most people

there may be some who are interested