Methyl 4-Iodophenylacetate → Methyl [4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)-phenyl]-acetate

HRID 278809Notes

Reaction equation

HRID 278809 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[C:9](=[O:13])[CH2:8][CH2:7][C:6]2([CH3:15])[CH3:14])#[CH:2].[CH3:16][O:17][C:18](=[O:27])[CH2:19][C:20]1[CH:25]=[CH:24][C:23](I)=[CH:22][CH:21]=1>C(N(CC)CC)C.[Cu]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>[CH3:14][C:6]1([CH3:15])[C:5]2[CH:4]=[C:3]([C:1]#[C:2][C:23]3[CH:24]=[CH:25][C:20]([CH2:19][C:18]([O:17][CH3:16])=[O:27])=[CH:21][CH:22]=3)[CH:12]=[CH:11][C:10]=2[C:9](=[O:13])[CH2:8][CH2:7]1

Participants

6

Reactant 2

HCID 10378700Methyl 4-Iodophenylacetate2×HCID 225688236-ethynyl-3,4-dihydro-4,4-dimethylnaphthalen-1(2H)-one2×

Product 1

HCID 12971710Methyl [4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)-phenyl]-acetateYield 75.2%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8471TriethylamineSolvent

Procedure

Using General Procedure F; 6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-naphthalen-1-one (Intermediate 13, 190.0 mg, 0.96 mmol) and methyl-(4-iodophenyl)-acetate (Reagent B, 245.0 mg, 0.96 mmol) in triethyl amine (8 mL) was treated with copper(I)iodide (46 mg, 0.24 mmol) and sparged with argon for 15 minutes. Dichlorobis(triphenylphosphine)palladium(II) (168 mg, 0.24 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (10-20% EtOAc-hexanes) afforded 250.0 mg (75%) of the title compound as a pale-yellow solid.

Workup

  1. customsparged with argon for 15 minutes

Sources & evidence

ORD record
ord-b9e1375300c247f1af8817a28aed3711
Source dataset
uspto-grants-2002_03
Patent number
US06359135B1

Reaction notes

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