Triethylamine → HCID 66705970, compound

HRID 1916175Notes

Reaction equation

HRID 1916175 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]([NH:8][CH2:9][CH3:10])=[N:6][CH:7]=1.[CH3:11][Si:12]([CH3:16])([CH3:15])[C:13]#[CH:14].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(N(CC)CC)C>C1COCC1.C(OCC)(=O)C.C1CCCCC1.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>[CH2:9]([NH:8][C:5]1[CH:4]=[CH:3][C:2]([C:14]#[C:13][Si:12]([CH3:16])([CH3:15])[CH3:11])=[CH:7][N:6]=1)[CH3:10]

Participants

9

Reactant 4

HCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 66111TrimethylsilylacetyleneHCID 225049165-Bromo-N-ethylpyridin-2-amine

Product 1

HCID 66705970HCID 66705970, compound

Reagents, catalysts & solvents 4

HCID 178418476HCID 178418476, compoundCatalystHCID 8028TetrahydrofuranSolventHCID 8078CyclohexaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

The title compound is synthesized according to general procedure GP2 starting from 909 mg (4.5 mmol) 5-bromo-2-ethylamino-pyridine and 0.89 mL (6.3 mmol) 1-trimethylsilyl-ethyne using 26 mg (0.13 mmol) CuI, 118 mg (0.45 mmol) triphenylphosphine, 82 mg (0.12 mmol) PdCl2(PPh3)2 and 6.3 mL (45.0 mmol) triethylamine in 7 mL dry THF. For the work-up the reaction mixture is diluted with ethyl acetate and small amounts of cyclohexane, the organic phase is extracted with water and brine. The product is purified by chromatography on silica gel using a hexane/ethyl acetate gradient. Yield: 980 mg (99%).

Workup

  1. extractionthe organic phase is extracted with water and brine
  2. customThe product is purified by chromatography on silica gel using a hexane/ethyl acetate gradient

Sources & evidence

ORD record
ord-3f8ffb04704247aa80cb0f95fdb0b1ac
Source dataset
uspto-grants-2013_12
Patent number
US08618111B2

Reaction notes

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