تفاعل #1384239

ord-e355dac7d1eb46a190e867812e7e8af7

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    ترشيحThe mixture was then filtered over Celite
  2. 2
    غسيلwashing with ethanol
  3. 3
    workup.ADDITIONSolid sodium bicarbonate was added
  4. 4
    ترشيحfiltered
  5. 5
    أخرىThe solvent was removed by distillation at reduced pressure

الإجراء التجريبي

A portion of 14 (5.77 g, 20.2 mmol) was dissolved in 40 mL of acidic ethanol, and a catalytic amount of 10% palladium on carbon was added. The mixture was hydrogenated on a Parr apparatus (60 psi, 70° C.) for 3 hours. The mixture was then filtered over Celite, washing with ethanol. Solid sodium bicarbonate was added, and the mixture was stirred for 2 hours and, then filtered. The solvent was removed by distillation at reduced pressure, leaving a brown oil (5.0 g, 98% yield). IR (neat) 3441.82, 3349.64, 2893.88, 2238.41, 1634.41, 1516.36, 1449.79, 1234.71, 1101.56, 906.97, 722.62 cm−1. 1H NMR (400 MHz, CDCl3) δ 6.65 (ABq, J=8.7 Hz, Δv=51.5 Hz, 4H), 4.01 (t, J=5.4 Hz, 2H), 3.77 (t, J=4.6 Hz, 2H), 3.69 (app t, J=5.6 Hz, 2H), 3.65 to 3.59 (m, 4H), 3.51 (app t, J=4.9 Hz, 2H), 3.34 (s, 3H), 3.0 (brs, 2H). 13C NMR (100 MHz, CDCl3) δ 152.30, 140.58, 116.75, 116.24, 72.31, 71.14, 71.02, 70.93, 70.30, 68.49, 59.44.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US07250147B2uspto-grants-2007_07