反应详情

2-Bromo-5-(trifluoromethyl)-iodobenzene was synthesized from 2-bromo-5-(trifluoromethyl)benzeneamine according to the procedure described for Example 86. Diethyl [2-bromo-5-(trifluoromethyl)phenyl]difluoromethylphosphonate was synthesized from 2-bromo-5-(trifluoromethyl)-iodobenzene according to Example 25 except that chlorotrimethylsilane (several drops) was used in place of acetic acid. Compound 87 was synthesized according to procedures similar to those of Example 40 from this corresponding diethyl phosphonate. MS (ES−): m/z 353.0, 355.0 (M−H). 1H NMR: (DMSO-d6, 400 MHz) δ 7.94 (d, J=8.2, 1H), 7.90 (s, 1H), 7.68 (d, J=8.2, 1H).