1H-Isoindole-1,3(2H)-dione, 2-(2-bromoethyl)- → HCID 59716899, compound

HRID 2224219Notes

Reaction equation

HRID 2224219 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[N:12][N:11]3[C:14](=[O:17])[NH:15][N:16]=[C:10]3[C:9]=2[C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[CH:4][CH:3]=1.Br[CH2:26][CH2:27][N:28]1[C:32](=[O:33])[C:31]2=[CH:34][CH:35]=[CH:36][CH:37]=[C:30]2[C:29]1=[O:38].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[N:12][N:11]3[C:14](=[O:17])[N:15]([CH2:26][CH2:27][N:28]4[C:29](=[O:38])[C:30]5[C:31](=[CH:34][CH:35]=[CH:36][CH:37]=5)[C:32]4=[O:33])[N:16]=[C:10]3[C:9]=2[C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 113251H-Isoindole-1,3(2H)-dione, 2-(2-bromoethyl)-HCID 11430Potassium CarbonateHCID 111641617,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one

Product 1

HCID 59716899HCID 59716899, compoundYield 68%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

A solution of 7,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one, (290 mg, 0.81 mmol), prepared as described in Example 1, N-(2-bromoethyl)phthalimide (215 mg, 0.84 mmol) and K2CO3 (337 mg, 2.44 mmol) in DMF (3 ml), was heated at 80° C. for 2.5 hours. After this time, the reaction mixture was cooled to RT and diluted with ethyl acetate. The resultant solution was then washed with water. The organic layer was dried over Na2SO4, filtered and concentrated. The crude material was purified using silica gel column chromatography using an automated system eluting with a 1:1 mixture of ethyl acetate:hexane to give the title compound, 2-(2-(7,8-bis(4-chlorophenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)ethyl)isoindoline-1,3-dione as a yellow solid (290 mg, 68%). MS M+H=530.

Workup

  1. temperatureAfter this time, the reaction mixture was cooled to RT
  2. washThe resultant solution was then washed with water
  3. dry with materialThe organic layer was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude material was purified
  7. washeluting with a 1:1 mixture of ethyl acetate

Sources & evidence

ORD record
ord-1c8fa5c9fe0240d48d5a93db8365380c
Source dataset
uspto-grants-2008_05
Patent number
US07378418B2

Reaction notes

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