Benzoyl chloride → HCID 57581534, compound

HRID 1689961Notes

Reaction equation

HRID 1689961 reaction equation
[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([N:12]2[CH2:17][C@@H:16]([CH3:18])[NH:15][CH2:14][C@H:13]2[CH3:19])=[N:4][N:3]=1.[C:20](Cl)(=[O:27])[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1>CN(C=O)C.C(N(CC)C(C)C)(C)C.C(OCC)(=O)C>[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([N:12]2[C@H:13]([CH3:19])[CH2:14][N:15]([C:20]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)=[O:27])[C@H:16]([CH3:18])[CH2:17]2)=[N:4][N:3]=1

Participants

6

Reactant 2

HCID 7412Benzoyl chlorideHCID 57581476HCID 57581476, compound

Product 1

HCID 57581534HCID 57581534, compound

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolventHCID 81531DiisopropylethylamineSolvent

Procedure

1-chloro-4-((2R,5R)-2,5-dimethylpiperazin-1-yl)phthalazine (245 mg, 0.885 mmol) was dissolved in DMF (3.5 mL) and N,N-diisopropylethylamine (0.70 mL). Benzoyl chloride (0.118 mL, 1.02 mmol) was added and the mixture stirred at rt for 16 hours. The reaction was taken up in ethyl acetate (80 mL) and washed with aqueous K2CO3 (10%), water, and saturated sodium chloride. The organics were dried (MgSO4) and evaporated to give a yellow oil. Chromatography over silica gel with a gradient of hexanes/0-40% ethyl acetate gave an off-white foam. MS (M+H)+=381.8

Workup

  1. washwashed with aqueous K2CO3 (10%), water, and saturated sodium chloride
  2. dry with materialThe organics were dried (MgSO4)
  3. customevaporated
  4. customto give a yellow oil

Sources & evidence

ORD record
ord-006975b5651d4c7a909c2d7dce420779
Source dataset
uspto-grants-2012_04
Patent number
US08153633B2

Reaction notes

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