Chloroform → HCID 22256668, compound

HRID 1178660Notes

Reaction equation

HRID 1178660 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([O:9][CH3:10])=[CH:4][C:3]=1[NH:11][C:12]1[C:17]([C:18]#[N:19])=[CH:16][N:15]=[C:14]2[CH:20]=[C:21](I)[S:22][C:13]=12.[CH3:24][Si:25]([C:28]#[CH:29])([CH3:27])[CH3:26].C(Cl)(Cl)Cl>C(N(CC)CC)C.C1C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([O:9][CH3:10])=[CH:4][C:3]=1[NH:11][C:12]1[C:17]([C:18]#[N:19])=[CH:16][N:15]=[C:14]2[CH:20]=[C:21]([C:29]#[C:28][Si:25]([CH3:27])([CH3:26])[CH3:24])[S:22][C:13]=12

Participants

8

Reactant 3

HCID 6212ChloroformHCID 66111TrimethylsilylacetyleneHCID 103902087-[(2,4-Dichloro-5-methoxyphenyl)amino]-2-iodothieno[3,2-b]pyridine-6-carbonitrile

Product 1

HCID 22256668HCID 22256668, compound

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 241BenzeneSolventHCID 8471TriethylamineSolvent

Procedure

A mixture of 7-[(2,4-dichloro-5-methoxyphenyl)amino]-2-iodothieno[3,2-b]pyridine-6-carbonitrile (500 mg, 1.05 mmol), (trimethylsilyl)acetylene (237 μL, 1.67 mmol), 12.5 mg of tetrakis(triphenylphosphine)palladium(0) and 5 mg of copper(I) iodide in 3.5 mL of triethylamine and 12 mL of benzene is heated at reflux for 20 hours. The mixture is cooled to room temperature and 50 mL of chloroform are added. The mixture is washed with saturated aqueous sodium chloride, dried over sodium sulfate, filtered through a celite pad and concentrated in vacuo. The resulting brown solid is suspended in diethyl ether. The solids are collected by filtration and washed with diethyl ether to yield 7-[(2,4-dichloro-5-methoxyphenyl)amino]-2-[(trimethylsilyl)ethynyl]thieno[3,2-b]pyridine-6-carbonitrile as yellow crystals, mp 169–171° C.; 1H NMR (CDCl3) δ 0.26 (s, 9H), 3.88 (s, 3H), 6.79 (s, 1H), 6.89 (s, 1H), 7.51 (s, 1H), 7.56 (s, 1H), 8.65 (s, 1H); MS 444.1, 446.1 (M−H)−.

Workup

  1. temperatureis heated
  2. temperatureat reflux for 20 hours
  3. washThe mixture is washed with saturated aqueous sodium chloride
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered through a celite pad
  6. concentrationconcentrated in vacuo
  7. filtrationThe solids are collected by filtration
  8. washwashed with diethyl ether

Sources & evidence

ORD record
ord-640c7b998a4c4c00b0ce22efae7170ba
Source dataset
uspto-grants-2007_10
Patent number
US07276519B2

Reaction notes

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