3-(Trifluoromethyl)benzoyl chloride → HCID 58827253, compound

HRID 448455Notes

Reaction equation

HRID 448455 reaction equation
Cl.[NH2:2][CH2:3][C:4]1[CH:12]=[CH:11][CH:10]=[C:9]2[C:5]=1[C:6](=[O:22])[N:7]([CH:14]1[CH2:19][CH2:18][C:17](=[O:20])[NH:16][C:15]1=[O:21])[C:8]2=[O:13].C(N(C(C)C)CC)(C)C.[F:32][C:33]([F:44])([F:43])[C:34]1[CH:35]=[C:36]([CH:40]=[CH:41][CH:42]=1)[C:37](Cl)=[O:38]>C(Cl)Cl>[O:21]=[C:15]1[CH:14]([N:7]2[C:6](=[O:22])[C:5]3[C:9](=[CH:10][CH:11]=[CH:12][C:4]=3[CH2:3][NH:2][C:37](=[O:38])[C:36]3[CH:40]=[CH:41][CH:42]=[C:34]([C:33]([F:32])([F:43])[F:44])[CH:35]=3)[C:8]2=[O:13])[CH2:19][CH2:18][C:17](=[O:20])[NH:16]1

Participants

5

Reactant 3

HCID 752573-(Trifluoromethyl)benzoyl chlorideHCID 81531DiisopropylethylamineHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Product 1

HCID 58827253HCID 58827253, compoundYield 54%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred suspension of 4-aminomethyl-2-(2,6-dioxo-piperidin-3-yl)-isoindole-1,3-dione hydrochloride (0.7 g, 2.16 mmol) in CH2Cl2 (80 ml), was added diisopropylethylamine (0.94 mL, 5.4 mmol) and 3-trifluoromethylbenzoyl chloride (0.42 mL, 2.8 mmol). The mixture was stirred at room temperature overnight and a suspension was obtained. The reaction mixture was filtered, and the solid was rinsed with CH2Cl2 (15 mL) and acetone (15 mL). The solid was then recrystallized with MeOH to afford N-[2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]-3-trifluoromethyl-benzamide as a white solid (0.5 g, 54%): mp, 241-243° C.; HPLC: Waters Symmetry C-18, 3.9×150 mm, 5 micro, 1 mL/min, 240 nm, 40/60 (CH3CN/H2O): tR=4.4 min. (99%); 1H NMR (DMSO-d6): δ 2.06-2.11 (m, 1H), 2.53-2.65 (m, 2H), 2.85-2.93 (m, 1H), 4.96 (d, J=5.8 Hz, 2H), 5.15-5.21 (dd, J=5, 12 Hz, 1H), 7.46-7.84 (m, 6H), 9.33 (t, J=6 Hz, 1H), 11.15 (s, 1H). 13C NMR (DMSO-d6) δ: 21.96, 30.92, 38.49, 48.86, 106.93, 110.58, 110.69, 110.82, 110.93, 121.99, 127.21, 131.54, 133.20, 134.83, 137.42, 138.62, 160.51, 160.67, 163.78, 163.95, 164.10, 166.92, 167.48, 169.81, 172.73. Anal Calcd for C21H15FN3O5: C, 59.02; H, 3.54; N, 9.83; F, 8.89. Found: C, 58.90; H, 3.15; N, 9.73; F, 9.08.

Workup

  1. customa suspension was obtained
  2. filtrationThe reaction mixture was filtered
  3. washthe solid was rinsed with CH2Cl2 (15 mL) and acetone (15 mL)
  4. customThe solid was then recrystallized with MeOH

Sources & evidence

ORD record
ord-92f9d635313841b49ce4cc79c2de6f86
Source dataset
uspto-grants-2013_07
Patent number
US08481568B2

Reaction notes

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