1-Ethynyl-4-methoxybenzene → HCID 10177173, compound

HRID 428654Notes

Reaction equation

HRID 428654 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]#[CH:10])=[CH:5][CH:4]=1.Br[C:12]1[CH:20]=[CH:19][CH:18]=[C:17]2[C:13]=1/[C:14](=[CH:22]/[C:23]1[NH:24][CH:25]=[CH:26][C:27]=1[O:28][CH3:29])/[C:15](=[O:21])[NH:16]2>[Cu]I.CN(C=O)C.CCN(CC)CC>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]#[C:10][C:12]2[CH:20]=[CH:19][CH:18]=[C:17]3[C:13]=2/[C:14](=[CH:22]/[C:23]2[NH:24][CH:25]=[CH:26][C:27]=2[O:28][CH3:29])/[C:15](=[O:21])[NH:16]3)=[CH:5][CH:4]=1

Participants

6

Reactant 2

HCID 2510201-Ethynyl-4-methoxybenzeneHCID 18359254(Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one2×

Product 1

HCID 10177173HCID 10177173, compound

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

Using general Method D above, 4-methoxyphenyl acetylene (0.49 g, 3.68 mmol) (from Step A above) was coupled with (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (Starting Material 1) (0.47 g, 1.47 mmol) using DPPFPdCl2 (0.12 g) (Aldrich) and CuI (28 mg) (Aldrich) as catalyst in DMF (10 mL) and Et3N (15 mL) as solvent and was heated at reflux for 1 day, yielding (Z)-1,3-dihydro-4-[(4-methoxyphenyl)ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 0.31 g, 57%).

Workup

  1. temperatureat reflux for 1 day

Sources & evidence

ORD record
ord-a03e11e0ea6744af8c0e726a6619e0b4
Source dataset
uspto-grants-2001_11
Patent number
US06313310B1

Reaction notes

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