Benzaldehyde → rac-(Z)-1,3-dihydro-4-(3-hydroxy-3-phenyl-1-propynyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one

HRID 428705

Reaction equation

HRID 428705 reaction equation
[OH:1][CH:2]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)[C:3]#[CH:4].C([Mg]Cl)#C.C(=O)C1C=CC=CC=1.Br[C:24]1[CH:32]=[CH:31][CH:30]=[C:29]2[C:25]=1/[C:26](=[CH:34]/[C:35]1[NH:36][CH:37]=[CH:38][C:39]=1[O:40][CH3:41])/[C:27](=[O:33])[NH:28]2>[Cu]I.CN(C=O)C.CCN(CC)CC>[OH:1][CH:2]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)[C:3]#[C:4][C:24]1[CH:32]=[CH:31][CH:30]=[C:29]2[C:25]=1/[C:26](=[CH:34]/[C:35]1[NH:36][CH:37]=[CH:38][C:39]=1[O:40][CH3:41])/[C:27](=[O:33])[NH:28]2

Participants

8

Reactant 4

HCID 240BenzaldehydeHCID 20155alpha-EthynylbenzenemethanolHCID 18359254(Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one2×HCID 178462451HCID 178462451, compound

Product 1

HCID 9969383rac-(Z)-1,3-dihydro-4-(3-hydroxy-3-phenyl-1-propynyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one

Reagents, catalysts & solvents 3

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

Procedure

Using Method D above, 3-hydroxy-3-phenyl-1-propyne (0.1 g, 0.78 mmol) (prepared by the addition of ethynylmagnesium chloride (Aldrich) to benzaldehyde (Aldrich) through Method A above) was coupled to (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (0.1 g, 0.31 mmol) (Starting Material 1) using DPPFPdCl2 (12.6 mg) (Aldrich) and CuI (3 mg) (Aldrich) as catalyst in DMF (5 mL) and Et3N (5 mL) as solvent at 85° C. for 18 h, yielding rac-(Z)-1,3-dihydro-4-(3-hydroxy-3-phenyl-1-propynyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 42 mg, 38%).

Sources & evidence

ORD record
ord-023af678f9a34135891f01370728af4e
Source dataset
uspto-grants-2001_11
Patent number
US06313310B1

Linked notes

Loading…