تفاعل #10080

معادلة التفاعل

4-amino-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione

propanoyl chloride

→

product

المردود 88.1%

N-[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]propanamide

المردود 88.1%

المذيبات

THF

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةThe mixture was heated
2. 2
   درجة الحرارةto reflux for 18 hours
3. 3
   أخرىThe solvent was evaporated in vacuo
4. 4
   ترشيحfiltered

الإجراء التجريبي

To a stirred suspension of 4-amino-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione (0.55 g, 2.0 mmol) in THF (30 ml) was added propanoyl chloride (0.37 g, 4.0 mmol). The mixture was heated to reflux for 18 hours. The solvent was evaporated in vacuo and the resulting solid was slurried in diethyl ether (20 ml) and filtered to give 0.58 g (88%) of product as an off-white solid: mp 221–223° C.; 1H NMR (DMSO-d6) δ 11.15 (s, 1H), 9.65 (s, 1H), 8.50 (d, J=8.3 Hz, 1H), 7.83 (t, J=7.6 Hz, 1H), 7.60 (d, J=7.2 Hz, 1H), 5.16 (dd, J=5.2 and 12.6 Hz, 1H), 2.99–2.85 (m, 1H), 2.66–2.45 (m, 4H), 2.11–2.07(m, 1H), 1.14 (t, J=7.5 Hz, 3H); 13C NMR (DMSO-d6) δ 172.69, 172.65, 169.71, 167.79, 166.62, 136.65, 136.09, 131.35, 125.93, 118.12, 116.66, 48.91, 30.91, 29.73, 21.97, 9.13; Anal. Calcd. For C16H15N3O5: C, 58.36; H, 4.59; N, 12.76. Found: C, 58.01; H, 4.45; N, 12.61.

المصدر