反应详情

20 g (76 mmol) of methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate are dissolved in 150 ml of methanol, 6 g (120 mmol) of hydrazine hydrate are added, and the mixture is refluxed for 12 hours. Removal of 120 ml of methanol by distillation gives 19.8 g (75 mmol, 98%) of product. The compounds of the formula (III) are obtained analogously using the compounds shown in Table 3.

1. temperaturethe mixture is refluxed for 12 hours
2. customRemoval of 120 ml of methanol
3. distillationby distillation