Potassium Iodide → 2-(5-{3-[2-(4-Chloro-phenylamino)-ethylamino]-propylidene}-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl)-propan-2-ol

HRID 557040Notes

Reaction equation

HRID 557040 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][CH2:9][CH2:10][NH2:11])=[CH:4][CH:3]=1.N1C(C)=CC=CC=1C.[I-].[K+].Br[CH2:23][CH2:24][CH:25]=[C:26]1[C:32]2[CH:33]=[CH:34][CH:35]=[N:36][C:31]=2[CH2:30][O:29][C:28]2[CH:37]=[CH:38][C:39]([C:41]([OH:44])([CH3:43])[CH3:42])=[CH:40][C:27]1=2>C(O)(C)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][CH2:9][CH2:10][NH:11][CH2:23][CH2:24][CH:25]=[C:26]2[C:32]3[CH:33]=[CH:34][CH:35]=[N:36][C:31]=3[CH2:30][O:29][C:28]3[CH:37]=[CH:38][C:39]([C:41]([OH:44])([CH3:43])[CH3:42])=[CH:40][C:27]2=3)=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 4875Potassium IodideHCID 79372,6-LutidineHCID 12666393N-(2-Aminoethyl)-N-(4-chlorophenyl)amineHCID 666859992-[5-(3-Bromo-propylidene)-5,1 1-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl]-propan-2-ol

Product 1

HCID 667582672-(5-{3-[2-(4-Chloro-phenylamino)-ethylamino]-propylidene}-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl)-propan-2-ol

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of N-(4-chloro-phenyl)-ethane-1,2-diamine (0.68 g, 3.96 mmol) in isopropanol (8.0 mL) was added 2,6-lutidine (0.31 mL, 2.64 mmol) and catalytic potassium iodide. This mixture was heated to 80° C. and then treated with 2-[5-(3-bromo-propylidene)-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl]-propan-2-ol (0.15 g, 0.4 mmol) in portions over 2 h. The solution was then stirred at 80° C. for an additional 18 h. The reaction mixture was concentrated in vacuo, then purified by flash chromatography on silica gel (gradient elution from 95% ethyl acetate/5% methanol to 90% ethyl acetate/20% methanol) to yield the title compound. 1H-NMR (DMSO) δ: 1.40 (6H, s), 2.20-2.40 (2H, m), 2.70-2.90 (3H, m), 3.10-3.30 (3H, m), 5.20 (2H, br, s), 5.80 (1H, m), 6.15 (1H, t), 6.60-6.70 (1H, m), 7.10-7.30 (4H, m) 7.50 (2H, m), 7.80 (1H, dd), 8.50 (1H, dd). ESI-MS m/z: 464 (M+1), UV retention time: 1.40 min.

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. custompurified by flash chromatography on silica gel (gradient elution from 95% ethyl acetate/5% methanol to 90% ethyl acetate/20% methanol)

Sources & evidence

ORD record
ord-8318f913350c4f3384f2b6f54d3e0e63
Source dataset
uspto-grants-2011_11
Patent number
US08058287B2

Reaction notes

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