تفاعل #2446144

ord-dfe7e44d8abd4bbdb8b0bbcffca6e0c1

معادلة التفاعل

O
water
Nc1ccc(Br)cc1F
4-bromo-2-fluoroaniline
CC(=O)OCC(=O)Cl
acetoxyacetyl chloride
CC(=O)OCC(=O)Nc1ccc(Br)cc1F
2-(4-bromo-2-fluorophenylamino)-2-oxoethyl acetate
المردود 104.8%

الكواشف

لا شيء

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    استخلاصthe solution was extracted several times with dichloromethane
  2. 2
    غسيلThe combined organic layers were washed with brine
  3. 3
    تجفيفdried over MgSO4
  4. 4
    أخرىevaporated

الإجراء التجريبي

To a solution of 4-bromo-2-fluoroaniline (9.5 g, 50.0 mmol) in 150 ml dry CHCl3 was added drop wise acetoxyacetyl chloride (7.5 g, 55.0 mmol) under nitrogen. The mixture was stirred at room temperature for 0.5 h, then water was added and the solution was extracted several times with dichloromethane. The combined organic layers were washed with brine, dried over MgSO4 and evaporated, affording 2-(4-bromo-2-fluorophenylamino)-2-oxoethyl acetate (15.2 g) as colorless solid in quantitative yield.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US08685960B2uspto-grants-2014_04