反应详情

Prepared from 3-iodo-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (87.5 g, 191 mmol) and trimethylsilylacetylene (54 mL, 390 mmol) as described in Example C.1, method 1, step 3a, to give the 7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-3-trimethylsilanylethynyl-pyrazolo[1,5-a]pyrimidine (82.71 g, 100%) as a yellow-orange solid.