Lawesson's reagent → HCID 86600782, compound

HRID 1816882Notes

Reaction equation

HRID 1816882 reaction equation
[CH3:1][C:2]1([CH3:21])[C:8]2[CH:9]=[C:10]([C:13]3[NH:17][C:16]([C:18]#[N:19])=[CH:15][CH:14]=3)[CH:11]=[CH:12][C:7]=2[NH:6][C:5](=O)[CH2:4][O:3]1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:31])=CC=1>C1(C)C=CC=CC=1.C1COCC1>[CH3:1][C:2]1([CH3:21])[C:8]2[CH:9]=[C:10]([C:13]3[NH:17][C:16]([C:18]#[N:19])=[CH:15][CH:14]=3)[CH:11]=[CH:12][C:7]=2[NH:6][C:5](=[S:31])[CH2:4][O:3]1

Participants

5

Reactant 2

HCID 87949Lawesson's reagentHCID 44579751HCID 44579751, compound

Product 1

HCID 86600782HCID 86600782, compoundYield 118.4%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 5-(5,5-dimethyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-1H-pyrrole-2-carbonitrile (0.4 g, 1.4 mmol) in a mixture of toluene (20 mL) and THF (10 mL, help to dissolve the starting material) was added at rt under nitrogen the Lawesson's reagent (0.29 g, 0.71 mmol). The mixture was heated at 100° C. for 10 minutes, cooled to rt, and concentrated. The residue was purified by a flash chromatography on silica gel column (hexane:THF/4:1) to give the title compound as a yellowish solid (0.25 g, 60%). 1H-NMR (DMSO-d6) δ 12.66 (s, 1H), 11.96 (s, 1H), 7.69 (d, J=1.49 Hz, 1H), 7.64 (dd, J=1.48, 8.44 Hz, 1H), 7.35 (d, J=8.51 Hz, 1H), 7.01 (m, 1H), 6.79 (m, 1H), 4.49 (s, 2H), 1.60 (s, 6H); MS (FI) m/z 296 ([M−H]−, 100%)

Workup

  1. dissolutionto dissolve the starting material)
  2. temperaturecooled to rt
  3. concentrationconcentrated
  4. customThe residue was purified by a flash chromatography on silica gel column (hexane:THF/4:1)

Sources & evidence

ORD record
ord-7cf6dd916f4948b5bc2157494ea45ef0
Source dataset
uspto-grants-2009_10
Patent number
US07598237B2

Reaction notes

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