تفاعل #969553
ord-f86db14a0f7547e3a6936716e2e6f02b
معادلة التفاعل
المتفاعلات
الكواشف
ظروف التفاعل
المعالجة
- 1غسيلwash
- 2أخرىgiving a white precipitate
- 3أخرىThis cold reaction mixture
- 4ترشيحwas filtered
- 5أخرىto remove the solid
- 6تركيزthe filtrate was concentrated to dryness
الإجراء التجريبي
Benzyl 2-aminoacetate was generated from a treatment of benzyl 2-aminoacetate hydrochloride (Aldrich) in methylene chloride with aqueous sodium bicarbonate solution followed by water wash. To a cooled solution of benzyl 2-aminoacetate (1.837 g, 11.1 mmol) and pyridine (1.1 g, 1.1 mL, 13.9 mmol) in methylene chloride (17 mL) at −78° C., was added slowly 1-chloroethyl chloroformate (Aldrich, 1.67 g, 11.7 mmol) over ˜10 min. The reaction mixture was allowed to stir at −78° C. for 3 h, giving a white precipitate. This cold reaction mixture was filtered to remove the solid and the filtrate was concentrated to dryness, giving the crude benzyl 2-((1-chloroethoxy)carbonylamino)acetate which was used for the next step without further purification.