Ml. Dossantos et al., ELECTROPHILIC AROMATIC THALLATION OF PHENOL ETHERS - AN IMPROVED EXPERIMENTAL PROCEDURE, Journal of organometallic chemistry, 526(1), 1996, pp. 15-19
In this report we present a simple modification of the classical elect
rophilic aromatic thallation reaction, in which iodination of several
phenol ethers can be achieved in high yields under very mild reaction
conditions with the mixture TTFA/BF3 . Et(2)O/ClCH2CH2Cl, whereby both
oxidative dimerizations and hydrolysis have been successfully suppres
sed.