反应详情

10.6 ml of hydrazine hydrate were added to 21.2 g (73 mmol) of 4-phthalimidomethyl-3-methoxybenzonitrile dissolved in 290 ml of THF, and the mixture was stirred at RT for 20 h. Then 180 ml of 2N HCl were added dropwise and, after 1.5 h, the solvent was completely stripped off. The residue was taken up in MTBE, extracted with 1N HCl, adjusted to pH 9-10 with 2N NaOH and extracted with DCM. 8.0 g (68%) of the product were obtained. 1H-NMR (DMSO-d6; δ in ppm): 7.55 (dd, 1H); 7.40 (dd, 1H); 7.37 (d, 1H); 3.85 (s, 3H); 3.70 (s, 2H); 2.5-1.6 (NH2).

1. extractionextracted with 1N HCl
2. extractionextracted with DCM