反应详情

3-(2-(2-Fluoro-5-iodobenzylidene)hydrazinyl)benzoic acid (I1b, 3.47 g, 9 mmol) and potassium tert, butoxide (2.3 g, 20.5 mmol) was stirred under argon atmosphere in NMP (45 mL) at 150° C. for 30 minutes. After cooling, the mixture was diluted with water (100 mL), acidified with aqueous HCl (1.7 M) and extracted trice with EtOAc. The combined organic phases were washed twice with water and then with brine. Evaporation of the organic phase afforded crude title compound (3.52 g, quant.) as a light brown, amorphous, gummy solid.

1. temperatureAfter cooling
2. extractionextracted trice with EtOAc
3. washThe combined organic phases were washed twice with water
4. customEvaporation of the organic phase