Triethylamine → HCID 9958451, compound

HRID 433323Notes

Reaction equation

HRID 433323 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:11]([N:16]2[C:24](=[O:25])[C:23]3[C:18](=[CH:19][CH:20]=[CH:21][C:22]=3[NH2:26])[C:17]2=[O:27])[CH2:12][C:13](=[O:15])[CH3:14])[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].C(N(CC)CC)C.[CH3:35][S:36](Cl)(=[O:38])=[O:37]>C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:11]([N:16]2[C:24](=[O:25])[C:23]3[C:18](=[CH:19][CH:20]=[CH:21][C:22]=3[N:26]([S:36]([CH3:35])(=[O:38])=[O:37])[S:36]([CH3:35])(=[O:38])=[O:37])[C:17]2=[O:27])[CH2:12][C:13](=[O:15])[CH3:14])[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 18758346HCID 18758346, compound

Product 1

HCID 9958451HCID 9958451, compoundYield 81.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
5 °C

Procedure

A mixture of 2-[1-(3,4-dimethoxyphenyl)-3-oxobutyl]-4-aminoisoindoline-1,3-dione (1.02 g, 2.77 mmol) and triethylamine (1.40 g, 13.85 mmol) in methylene chloride (40 mL) was cooled to 5° C. Methanesulfonyl chloride (1.27 g, 11.08 mmol) was added at 5-8° C. and the resulting mixture was stirred at room temperature for 2 hours. The mixture was washed with sat. Sodium bicarbonate (20 mL), 1N hydrogen chloride (20 mL), water (30 mL), brine (30 mL) and dried over magnesium sulfate. The solvent was removed in vacuo and the residue was purified by chromatography (Silica gel, methylene chloride:ethyl acetate 9:1) to give 2-[1-(3,4-dimethoxyphenyl)-3-oxobutyl]-4-[bis(methylsulfonyl)amino]isoindoline-1,3-dione (1.18 g, 81%) as a white solid mp 194-196° C.; 1H NMR (DMSO-d6) δ8.02-7.93 (m, 3H), 6.99-6.90 (m, 3H), 5.65 (t, J=6.7 Hz, 1H), 3.75-3.65 (m, 1H), 3.71 (s, 6H), 3.56 (s, 6H), 3.53-3.46 (m, 1H), 2.11 (s, 3H); 13C NMR (DMSO-d6) δ205.79, 166.58, 165.78, 148.64, 148.32, 138.48, 135.86, 132.68, 131.50, 129.85, 129.15, 125.06, 119.35, 111.58, 110.91, 55.49, 55.39, 49.27, 44.52, 43.53, 43.49, 29.92; Anal. Calcd. for C22H24N2O9S2: C, 50.37; H, 4.61; N, 5.34, S, 12.23. Found: C, 50.43, H, 4.77; N, 5.16; S, 12.22.

Workup

  1. washThe mixture was washed with sat. Sodium bicarbonate (20 mL), 1N hydrogen chloride (20 mL), water (30 mL), brine (30 mL)
  2. dry with materialdried over magnesium sulfate
  3. customThe solvent was removed in vacuo
  4. customthe residue was purified by chromatography (Silica gel, methylene chloride:ethyl acetate 9:1)

Sources & evidence

ORD record
ord-9653c6a57f7c415ca4c3032b4a05221b
Source dataset
uspto-grants-2003_12
Patent number
US06667316B1

Reaction notes

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