G. Estenne et al., AN EFFICIENT SYNTHESIS OF CHLORINATED IMIDAZOLES THROUGH TERT-BUTYLDIMETHYLSILYLOXY DERIVATIVES, Journal of heterocyclic chemistry, 31(5), 1994, pp. 1121-1123
The protection of 2-substituted imidazole-5-methanol derivatives by te
rt-BDMS allowed the chlorination of the heterocycle in position 4 with
good yield whereas direct chlorination on the imidazole alcohol was u
nsuccessful.