Potassium Iodide → HCID 66758616, compound

HRID 917228Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:13][CH2:12][NH:11][CH2:10][C@@H:9]2[CH3:14])=[CH:4][CH:3]=1.N1C(C)=CC=CC=1C.[I-].[K+].Br[CH2:26][CH2:27][CH:28]=[C:29]1[C:35]2[CH:36]=[CH:37][CH:38]=[N:39][C:34]=2[CH2:33][O:32][C:31]2[CH:40]=[CH:41][C:42]([C:44]([OH:47])([CH3:46])[CH3:45])=[CH:43][C:30]1=2>C(O)(C)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH2:13][CH2:12][N:11]([CH2:26][CH2:27][CH:28]=[C:29]3[C:35]4[CH:36]=[CH:37][CH:38]=[N:39][C:34]=4[CH2:33][O:32][C:31]4[CH:40]=[CH:41][C:42]([C:44]([OH:47])([CH3:46])[CH3:45])=[CH:43][C:30]3=4)[CH2:10][C@@H:9]2[CH3:14])=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of 4-(4-chloro-phenyl)-3-(S)-methyl-piperazine (0.56 g, 2.6 mmol) in isopropanol (20 mL) was added 2,6-lutidine (0.305 mL, 2.6 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 (0.64 g, 1.7 mmol), added in portions over 2 h. The solution was then stirred at 80° C. for an additional 20 h. The reaction was concentrated in vacuo and purified by flash chromatography (100% dichloromethane to 2% methanol/dichloromethane) to yield the title compound (0.151 g, 18%). 1H-NMR (CDCl3) δ: 1.0 (3H, d), 1.57 (6H, s), 1.79 (s, 1H), 2.25–2.52 (7H, m), 2.66–2.69 (1H, m), 2.98–3.12 (2H, m), 3.68–3.73 (1H, m), 5.32 (2H, br s), 6.17 (1H, t), 6.82 (3H, d), 7.18–7.31 (4H, m), 7.44 (1H, d), 7.56–7.60 (1H, m), 8.50 (1H, dd). ESI-MS m/z: 504 (M), UV retention time: 1.49 min.

Workup

additionadded in portions over 2 h
concentrationThe reaction was concentrated in vacuo
custompurified by flash chromatography (100% dichloromethane to 2% methanol/dichloromethane)

Sources & evidence

ORD record: ord-b329683f7133469a9f8c10c1a8daf8d9
Source dataset: uspto-grants-2007_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07271176B2

Reaction notes

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