3-Ethynylpyridine → HCID 9902558, compound

HRID 428702Notes

Reaction equation

HRID 428702 reaction equation
[C:1]([C:3]1[CH:4]=[N:5][CH:6]=[CH:7][CH:8]=1)#[CH:2].Br[C:10]1[CH:18]=[CH:17][CH:16]=[C:15]2[C:11]=1/[C:12](=[CH:20]/[C:21]1[NH:22][CH:23]=[CH:24][C:25]=1[O:26][CH3:27])/[C:13](=[O:19])[NH:14]2>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I.CN(C=O)C.CCN(CC)CC>[CH3:27][O:26][C:25]1[CH:24]=[CH:23][NH:22][C:21]=1/[CH:20]=[C:12]1\[C:13](=[O:19])[NH:14][C:15]2[C:11]\1=[C:10]([C:2]#[C:1][C:3]1[CH:4]=[N:5][CH:6]=[CH:7][CH:8]=1)[CH:18]=[CH:17][CH:16]=2

Participants

7

Reactant 2

HCID 1860033-EthynylpyridineHCID 18359254(Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one2×

Product 1

HCID 9902558HCID 9902558, compound

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

Using Method D above, 3-ethynyl pyridine (60.6 mg, 0.59 mmol) (see below) was coupled with (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (75 mg, 0.23 mmol) (Starting Material 1) using (Ph3P)4Pd (13.3 mg) (Aldrich) and CuI (3 mg) (Aldrich) as catalyst in DMF (4 mL) and Et3N (4 mL) as solvent at 100° C. for 18 h, to yield (Z)-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-4-[(3-pyridinyl)ethynyl]-2H-indol-2-one. (Yield 52 mg, 66%).

Sources & evidence

ORD record
ord-50dc283232644a2d894471ea111f065a
Source dataset
uspto-grants-2001_11
Patent number
US06313310B1

Reaction notes

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