Lawesson's reagent → HCID 86600782, compound

HRID 2252549Notes

Reaction equation

HRID 2252549 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 (10mL, 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-4fceffc6c96a44f282f4ed68ca44bcd3
Source dataset
uspto-grants-2008_01
Patent number
US07323455B2

Reaction notes

Loading…