Triethylamine → HCID 21107124, compound

HRID 2377519Notes

Reaction equation

HRID 2377519 reaction equation
[CH3:1][CH:2]1[CH2:11][C:10]([CH3:13])([CH3:12])[C:9]2[CH:8]=[C:7](OS(C(F)(F)F)(=O)=O)[CH:6]=[CH:5][C:4]=2[C:3]1=[O:22].C(N(CC)CC)C.[CH3:30][Si:31]([C:34]#[CH:35])([CH3:33])[CH3:32].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>[CH3:1][CH:2]1[CH2:11][C:10]([CH3:13])([CH3:12])[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:35]#[C:34][Si:31]([CH3:33])([CH3:32])[CH3:30])[CH:8]=2)[C:3]1=[O:22]

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 66111TrimethylsilylacetyleneHCID 57424270HCID 57424270, compound2×

Product 1

HCID 21107124HCID 21107124, compoundYield 104.6%

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 D and using trifluoro-methanesulfonic acid 6,8,8-trimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-yl ester (Intermediate 196, 1.45 g, 4.3 mmol), triethyl amine (5 mL), copper(I)iodide (0.21 g, 0.26 mmol), trimethylsilyl acetylene (3 mL, 21 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.75 g, 1.07 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5% ethyl acetate in hexane as the eluent, the title compound (1.28 g, ˜100%) was obtained.

Sources & evidence

ORD record
ord-879120b6eca342c292f8e786d1156ab8
Source dataset
uspto-grants-2008_12
Patent number
US07468391B2

Reaction notes

Loading…