Diisopropylethylamine → HCID 67422718, compound

HRID 1987332Notes

Reaction equation

HRID 1987332 reaction equation
[CH3:1][C:2]1[C:3]([CH:8]2[CH2:14][CH:13]=[CH:12][CH2:11][CH:10]([C:15]3[C:20]([CH3:21])=[CH:19][CH:18]=[CH:17][N:16]=3)[NH:9]2)=[N:4][CH:5]=[CH:6][CH:7]=1.Br[CH2:23][CH2:24][CH2:25][CH2:26][N:27]1[C:35](=[O:36])[C:34]2[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=2)[C:28]1=[O:37].CCN(C(C)C)C(C)C>CN(C=O)C>[CH3:1][C:2]1[C:3]([CH:8]2[CH2:14][CH:13]=[CH:12][CH2:11][CH:10]([C:15]3[C:20]([CH3:21])=[CH:19][CH:18]=[CH:17][N:16]=3)[N:9]2[CH2:23][CH2:24][CH2:25][CH2:26][N:27]2[C:35](=[O:36])[C:34]3[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=3)[C:28]2=[O:37])=[N:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 93575N-(4-Bromobutyl)phthalimideHCID 67422995HCID 67422995, compound

Product 1

HCID 67422718HCID 67422718, compoundYield 25.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of 2,7-bis-(3-methyl-pyridin-2-yl)-2,3,6,7-tetrahydro-1H-azepine (30.2 mg, 0.108 mmol), 2-(4-bromo-butyl)-isoindole-1,3-dione (33.5 mg, 0.119 mmol), DMF (3 mL), DIPEA (0.3 mL), and KI (4 mg) were heated to 110° C. for 4 h and overnight at 90° C. The solvent was removed and CH2Cl2 (20 mL) was added to the residue. It was washed with saturated NaHCO3 (10 mL). The aqueous layer was extracted two more times with CH2Cl2. The organic layer was dried (MgSO4), filtered and concentrated. Purification of the crude material by radial chromatography on silica gel (1 mm plate, 2:1 hexanes:EtOAc) provided 13.3 mg of 2-{4-[2,7-bis-(3-methyl-pyridin-2-yl)-2,3,6,7-tetrahydro-azepin-1-yl]-butyl}-isoindole-1,3-dione as a film. 1H NMR(CDCl3) δ 0.53-0.59 (m, 1H), 0.65-1.00 (m, 3H), 2.36 (s, 6H), 2.36-2.41 (m, 1H), 2.47-2.50 (m, 2H), 3.02-3.24 (m, 5H), 4.72 (dd, 2H, J=9.6, 1.8 Hz), 5.80-5.83 (m, 2H), 6.90 (dd, 2H, J=7.5, 4.2 Hz), 7.23 (d, 2H, J=7.5 Hz), 7.67-7.73 (m, 2H), 7.76-7.86 (m, 2H), 8.35 (d, 2H, J=4.2 Hz).

Workup

  1. customThe solvent was removed
  2. additionCH2Cl2 (20 mL) was added to the residue
  3. washIt was washed with saturated NaHCO3 (10 mL)
  4. extractionThe aqueous layer was extracted two more times with CH2Cl2
  5. dry with materialThe organic layer was dried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification of the crude material by radial chromatography on silica gel (1 mm plate, 2:1 hexanes:EtOAc)

Sources & evidence

ORD record
ord-85fe794d319f4912a91a5eb745303d3c
Source dataset
uspto-grants-2009_06
Patent number
US07550484B2

Reaction notes

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