Triethylamine → 2-[4-(4-Ethyl-8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl) phenyl]-2-methyl-propionic acid methyl ester

HRID 1765888Notes

Reaction equation

HRID 1765888 reaction equation
[CH2:1]([C:3]1[CH:4]=[C:5]([C:16]#[CH:17])[CH:6]=[C:7]2[C:12]=1[C:11](=[O:13])[CH2:10][CH2:9][C:8]2([CH3:15])[CH3:14])[CH3:2].[CH3:18][O:19][C:20](=[O:49])[C:21]([C:24]1[CH:29]=[CH:28][C:27](C#CC2C=C(C3CC3)C3OC4(CC4)CC(C)(C)C=3C=2)=[CH:26][CH:25]=1)([CH3:23])[CH3:22].C(N(CC)CC)C.C(OCC)(=O)C>CCCCCC.[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>[CH3:18][O:19][C:20](=[O:49])[C:21]([C:24]1[CH:25]=[CH:26][C:27]([C:17]#[C:16][C:5]2[CH:4]=[C:3]([CH2:1][CH3:2])[C:12]3[C:11](=[O:13])[CH2:10][CH2:9][C:8]([CH3:14])([CH3:15])[C:7]=3[CH:6]=2)=[CH:28][CH:29]=1)([CH3:23])[CH3:22]

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 211072538-Ethyl-6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-naphthalen-1-one2×HCID 690773412-{4-[(8-Cyclopropyl-3,4-dihydro-4,4-dimethylspiro[2H-1-benzopyran-2,1'-cyclopropane]-6-yl)ethynyl]-phenyl}-2-methyl-propionic acid methyl ester2×

Product 1

HCID 574506392-[4-(4-Ethyl-8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl) phenyl]-2-methyl-propionic acid methyl ester

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8058HexaneSolvent

Procedure

Following General Procedure B and using 8-ethyl-6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-naphthalen-1-one (Intermediate 180, 0.09 g, 0.39 mmol), methyl-2-(4-iodo phenyl)-2-methyl-propionate (Reagent 2, 0.152 g, 0.5 mmol), triethyl amine (8 mL), copper(I)iodide (0.024 g, 0.12 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.087 g, 0.12 mmol) followed by flash column chromatography over silica gel (230–400 mesh) using 2–10% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.095 g, 59%).

Sources & evidence

ORD record
ord-7f3aae73e7be45a9b35ae3eda5a81e12
Source dataset
uspto-grants-2007_06
Patent number
US07226951B2

Reaction notes

Loading…