Triethylamine → methyl 4-(3-(11-oxodibenzo[b,f][1,4]oxazepin-10(11H)-yl)prop-1-ynyl)benzoate

HRID 1946631Notes

Reaction equation

HRID 1946631 reaction equation
[CH2:1]([N:4]1[C:10](=[O:11])[C:9]2[CH:12]=[CH:13][CH:14]=[CH:15][C:8]=2[O:7][C:6]2[CH:16]=[CH:17][CH:18]=[CH:19][C:5]1=2)[C:2]#[CH:3].I[C:21]1[CH:30]=[CH:29][C:24]([C:25]([O:27][CH3:28])=[O:26])=[CH:23][CH:22]=1.C(N(CC)CC)C.C(OCC)(=O)C>C(#N)C.[Cu](I)I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[O:11]=[C:10]1[C:9]2[CH:12]=[CH:13][CH:14]=[CH:15][C:8]=2[O:7][C:6]2[CH:16]=[CH:17][CH:18]=[CH:19][C:5]=2[N:4]1[CH2:1][C:2]#[C:3][C:21]1[CH:30]=[CH:29][C:24]([C:25]([O:27][CH3:28])=[O:26])=[CH:23][CH:22]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 69273Methyl 4-iodobenzoateHCID 5978344810-(prop-2-ynyl)dibenzo[b,f][1,4]oxazepin-11(10H)-one

Product 1

HCID 59783655methyl 4-(3-(11-oxodibenzo[b,f][1,4]oxazepin-10(11H)-yl)prop-1-ynyl)benzoateYield 60%

Reagents, catalysts & solvents 3

HCID 83717Copper iodideCatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6342AcetonitrileSolvent

Procedure

The title compound 434 (0.310 g, 1.24 mmol) and the methyl 4-iodobenzoate (0.390 g, 1.48 mmol) were stirred in acetonitrile (10.0 mL). Copper iodide (24 mg, 0.124 mmol) and dichlorobis(triphenylphosphine)palladium (87 mg, 0.124 mmol) were added followed by triethylamine (0.44 mL, 3.11 mmol). The reaction mixture was stirred at room temperature for 4 hours. The mixture was poor into ethyl acetate and the organic layer was washed with water and brine, dried over sodium sulfate, filtered and evaporated. The crude was purified by flash chromatography (10-30% ethyl acetate in hexanes) to afford title compound 435 (285 mg, 60%) as a light brown solid. MS (m/z): 384.3 (M+H).

Workup

  1. washthe organic layer was washed with water and brine
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. customevaporated
  5. customThe crude was purified by flash chromatography (10-30% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-c3b2eb97682848ba9d4fcab2044cc559
Source dataset
uspto-grants-2013_03
Patent number
US08399452B2

Reaction notes

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