Phosphorus oxychloride → HCID 178478360, compound

HRID 1163101Notes

Reaction equation

HRID 1163101 reaction equation
O=P(Cl)(Cl)Cl.[Cl:6][C:7]1[C:8]([CH:13]([NH:30][C:31]([CH:33]2[CH2:36][CH2:35][CH2:34]2)=O)[C:14]2[CH:23]=[C:22]3[C:17]([CH:18]=[CH:19][C:20]([C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=4)=[N:21]3)=[CH:16][CH:15]=2)=[N:9][CH:10]=[CH:11][N:12]=1>>[Cl:6][C:7]1[C:8]2[N:9]([CH:31]([CH:33]3[CH2:36][CH2:35][CH2:34]3)[NH:30][C:13]=2[C:14]2[CH:23]=[C:22]3[C:17]([CH:18]=[CH:19][C:20]([C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=4)=[N:21]3)=[CH:16][CH:15]=2)[CH:10]=[CH:11][N:12]=1

Participants

3

Reactant 2

HCID 24813Phosphorus oxychlorideHCID 53629482N-[(3-chloro-2-pyrazinyl)(2-phenyl-7-quinolinyl)methyl]cyclobutanecarboxamide

Product 1

HCID 178478360HCID 178478360, compound

Conditions

Temperature
70 °C

Procedure

A mixture of POCl3 (5 mL, 8 g, 55 mmol) and cyclobutanecarboxylic acid [(3-chloropyrazin-2-yl)-(2-phenylquinolin-7-yl)methyl]-amide [275 mg, 0.583 mmol] is heated to 70° C. for 21.5 h. POCl3 is evaporated, a cold solution of NH3 in zPrOH (2M, 11 mL, 22 mmol) is added, the suspension is sonicated, the solid is filtered off and washed with iPrOH. The solid is suspended in CHCl3 and filtered, and the filtrate is concentrated to obtain the title compound as yellow solid. 1H NMR (CDCl3, 400 MHz) δ 2.04-2.15 (m, 1H), 2.15-2.28 (m, 1H), 2.50-2.60 (m, 2H), 2.64-2.76 (m, 2H), 3.89 (quint, J=8.4 Hz, 1H), 7.35 (d, J=4.8 Hz, 1H), 7.1447.50 (m, 1H), 7.51-7.57 (m, 3H), 7.89-7.93 (m, 3H), 8.17-8.22 (m, 2H), 8.27 (dd, J=0.8, 8.8 Hz, 1H), 8.53 (d, J=0.8 Hz, 1H). MS (ES+): m/z 410.9/412.9 (100/39) [MH+]. HPLC: tR=3.7 min (MicromassZQ, nonpolar—5 min).

Workup

  1. customPOCl3 is evaporated
  2. additiona cold solution of NH3 in zPrOH (2M, 11 mL, 22 mmol) is added
  3. customthe suspension is sonicated
  4. filtrationthe solid is filtered off
  5. washwashed with iPrOH
  6. filtrationfiltered
  7. concentrationthe filtrate is concentrated

Sources & evidence

ORD record
ord-3c208d3579b2483594c718a1dc3cf2eb
Source dataset
uspto-grants-2010_10
Patent number
US07820662B2

Reaction notes

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