3-Methoxypropyne → HCID 59970996, compound

HRID 366663Notes

Reaction equation

HRID 366663 reaction equation
[CH2:1]([O:4][CH3:5])[C:2]#[CH:3].I[C:7]1[CH:15]=[CH:14][CH:13]=[C:12]2[C:8]=1/[C:9](=[CH:17]/[C:18]1[NH:19][CH:20]=[CH:21][C:22]=1[O:23][CH3:24])/[C:10](=[O:16])[NH:11]2>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.CN(C=O)C.CCN(CC)CC>[CH3:5][O:4][CH2:1][C:2]#[C:3][C:7]1[CH:15]=[CH:14][CH:13]=[C:12]2[C:8]=1/[C:9](=[CH:17]/[C:18]1[NH:19][CH:20]=[CH:21][C:22]=1[O:23][CH3:24])/[C:10](=[O:16])[NH:11]2

Participants

6

Reactant 2

HCID 693933-MethoxypropyneHCID 15548053(Z)-1,3-dihydro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one2×

Product 1

HCID 59970996HCID 59970996, compound

Reagents, catalysts & solvents 3

HCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

Using Method C above, methyl propargyl ether (34 mg, 0.49 mmol) (Aldrich) was coupled with (Z)-1,3-dihydro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (150 mg, 0.41 mmol) (Starting Material 2 supra) using (Ph3P)2PdCl2 (20 mg) and Cul (10 mg) as catalyst in DMF (2 mL) and Et3N (2 mL) as solvent at 70° C. for 18 h to yield (Z)-1,3-dihydro-4-(3-methoxy-1-propynyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 69 mg, 55%).

Sources & evidence

ORD record
ord-7196fda502f34860a6f055b549ebfee8
Source dataset
uspto-grants-2000_10
Patent number
US06130239

Reaction notes

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