تفاعل #2432

ord-b2a2fb45af4f44099c49615f8d09865c

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    درجة الحرارةunder reflux for 1 h
  2. 2
    درجة الحرارةcooled
  3. 3
    أخرىevaporated
  4. 4
    درجة الحرارةheated
  5. 5
    درجة الحرارةunder reflux for 3 h
  6. 6
    أخرىevaporated
  7. 7
    أخرىchromatographed (eluant 10% EtOAc in hexanes)

الإجراء التجريبي

The compound of Example 37 (640 mg, 2.75 mmol) was dissolved in dry THF (30 ml) and borane-tetrahydrofuran complex (5 ml, 1M solution in THF) was added. The mixture was stirred under nitrogen under reflux for 1 h, then cooled and evaporated. The residue was taken up in MeOH/acetic acid (6/1, v/v, 70 ml) and heated under reflux for 3 h, then evaporated and chromatographed (eluant 10% EtOAc in hexanes) to provide a colourless oil (540 mg, 90%).

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US05728829uspto-grants-1998_03