تفاعل #10102

معادلة التفاعل

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

cyclopropanecarbonyl chloride

methanol

→

cyclopropanecarboxylic acid [2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-yl]-amide

المردود 84.0%

المذيبات

THF

ether

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةwas heated
2. 2
   درجة الحرارةto reflux for 15 h
3. 3
   أخرىThe solvent was removed in vacuo
4. 4
   أخرىto give a solid
5. 5
   أخرىfor 1 h
6. 6
   ترشيحThe suspension was filtered
7. 7
   غسيلwashed with ether (30 mL)

الإجراء التجريبي

A mixture of 4-amino-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione (0.60 g, 2.2 mmol) and cyclopropanecarbonyl chloride (0.4 mL, 4.4 mmol) in THF (20 mL) was heated to reflux for 15 h. To the mixture was added methanol (5 mL). The solvent was removed in vacuo to give a solid. The solid was slurried in ether (30 mL0 for 1 h. The suspension was filtered and washed with ether (30 mL) to give cyclopropanecarboxylic acid [2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-yl]-amide as a solid (630 mg, 84% yield): mp, 237–239° C.; 1H NMR (DMSO-d6) δ 0.87–0.90 (m, 4H, 2CH2), 1.93–2.09 (m, 2H, CH, CHH), 2.49–2.65 (m, 2H, CH2), 2.64–2.96 (m, 1H, CHH), 5.15 (dd, J=5.2, 12.6 Hz, 1H, NCH), 7.61 (d, J=7.2 Hz, 1H, Ar), 7.82 (t, J=7.7 Hz, 1H, Ar), 8.41 (d, J=8.3 Hz, 1H, Ar), 9.99 (s, 1H, NH), 11.16 (s, 1H, NH); 13C NMR (DMSO-d6) δ 8.10, 14.93, 22.00, 30.93, 48.92, 117.07, 118.30, 126.69, 131.49, 135.97, 136.43, 166.67, 167.57, 169.77, 172.55, 172.74; Anal Calcd for C17H15N3O5: C, 59.82; H, 4.43; N, 12.31. Found: C, 59.50; H, 4.39; N, 12.04.

المصدر