反应 #2814639
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US06316485B1
反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A solution of sodium nitrite (4.0 g) in water (7 ml) was added to an ice cooled mixture of 3-cyano-4-methoxyaniline (7.7 g) and concentrated hydrochloric acid (21 ml). The mixture was stirred at 0° C. for 30 minutes. To the resultant mixture a solution of tin(II) chloride dihydrate (49 g) and concentrated hydrochloric acid (5 ml) was added at 0° C. and stirred for 1 hour. The precipitates were filtered and washed with ice cooled concentrated hydrochloric acid (10 ml) to give crude (3-cyano-4-methoxyphenyl)hydrazine hydrochloride (14.8 g). cooled stirred for 1 hour The precipitates were filtered washed with ice cooled concentrated hydrochloric acid (10 ml)
来源 ID: ord-b6fd74e26a264987a673f11046a3f5ad