Triethylamine → Cyclopropyl-methyl-(3-trimethylsilanylethynyl-phenyl)-amine

HRID 1869956Notes

Reaction equation

HRID 1869956 reaction equation
Br[C:2]1[CH:3]=[C:4]([N:8]([CH:10]2[CH2:12][CH2:11]2)[CH3:9])[CH:5]=[CH:6][CH:7]=1.C(N(CC)CC)C.[CH3:20][Si:21]([C:24]#[CH:25])([CH3:23])[CH3:22].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>[CH:10]1([N:8]([CH3:9])[C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([C:25]#[C:24][Si:21]([CH3:23])([CH3:22])[CH3:20])[CH:3]=2)[CH2:12][CH2:11]1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 66111TrimethylsilylacetyleneHCID 21107154(3-Bromo-phenyl)-cyclopropyl-methyl-amine2×

Product 1

HCID 57424251Cyclopropyl-methyl-(3-trimethylsilanylethynyl-phenyl)-amineYield 84%

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 (3-bromo-phenyl)-cyclopropyl-methyl-amine (Intermediate 113, 0.056 g, 0.25 mmol), triethyl amine (3 mL), copper(I)iodide (0.025 g, 0.13 mmol), trimethylsilyl acetylene (2.5 mL, 17.6 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.065 g, 0.09 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 1.5% ethyl acetate in hexane as the eluent, the title compound (0.051 g, 84%) was obtained.

Sources & evidence

ORD record
ord-d272361a482247f5a8db477c7cdc7f7d
Source dataset
uspto-grants-2009_12
Patent number
US07638648B2

Reaction notes

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