تفاعل #1278070

ord-191966e0bdb84e6fafee2f8480bd80c6

الكواشف

لا شيء

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    درجة الحرارةthe reaction mixture was refluxed for 38 h
  2. 2
    workup.ADDITIONThe mixture was then poured in ice
  3. 3
    ترشيحfiltered
  4. 4
    استخلاصThe aqueous filtrate was extracted with CHCl3
  5. 5
    تجفيفThe combined organic layers were dried over MgSO4
  6. 6
    ترشيحfiltered
  7. 7
    أخرىevaporated

الإجراء التجريبي

A solution of AlMe3 (2M in toluene, 19.5 mL, 2 eq) was added dropwise to a solution of pyrrolidine (3.25 mL, 2 eq) in 50 mL of anhydrous DCM at 0° C. The reaction mixture was allowed to warm up to room temperature and stirred for 1 h. 1,3-Dimethyl 5-aminobenzene-1,3-dicarboxylate (4.10 g, 19.5 mmol) was added and the reaction mixture was refluxed for 38 h. The mixture was then poured in ice cooled water and filtered. The aqueous filtrate was extracted with CHCl3. The combined organic layers were dried over MgSO4, filtered and evaporated to give 3.5 g of expected compound which was used in the next step without further purification.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US08680095B2uspto-grants-2014_03