5-Bromo-2,4-difluorobenzoic acid

6-bromo-2,4-difluoro-3-triethylsilylbenzoic acid

(3-bromo-2,6-difluoro-5-iodophenyl)-triethylsilane

(3-bromo-2,6-difluoro-4-iodophenyl)-triethylsilane

2-bromo-3,5-difluoro-4-triethylsilylbenzoic acid