Trimethyl((tributylstannyl)ethynyl)silane → 3-Benzyl-8-trifluoromethyl-4-(3-trimethylsilanylethynylphenyl)-quinoline

HRID 2104793Notes

Reaction equation

[CH2:1]([C:8]1[CH:9]=[N:10][C:11]2[C:16]([C:17]=1[C:18]1[CH:23]=[CH:22][CH:21]=[C:20](Br)[CH:19]=1)=[CH:15][CH:14]=[CH:13][C:12]=2[C:25]([F:28])([F:27])[F:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:29][Si:30]([CH3:47])([CH3:46])[C:31]#[C:32][Sn](CCCC)(CCCC)CCCC>C1(C)C=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>[CH2:1]([C:8]1[CH:9]=[N:10][C:11]2[C:16]([C:17]=1[C:18]1[CH:23]=[CH:22][CH:21]=[C:20]([C:32]#[C:31][Si:30]([CH3:47])([CH3:46])[CH3:29])[CH:19]=1)=[CH:15][CH:14]=[CH:13][C:12]=2[C:25]([F:28])([F:27])[F:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 120 °C

Procedure

A solution of 3-benzyl-4-(3-bromo-phenyl)-8-trifluoromethyl-quinoline (1.0 g, 23 mmol) and trimethyl-tributylstannanylethynyl-silane (1.3 g, 34 mmol) in toluene (25 mL) is treated with Pd(PPh3)4 (270 mg) and heated at 120° C. for 3 h. The reaction is then cooled and concentrated in vacuo. The residue is chromatographed with 10:90 ethyl acetate:hexane to afford 3-benzyl-8-trifluoromethyl-4-(3-trimethylsilanylethynylphenyl)-quinoline as an oil. MS (ESI) m/z 460.0.

Workup

temperatureThe reaction is then cooled
concentrationconcentrated in vacuo
customThe residue is chromatographed with 10:90 ethyl acetate

Sources & evidence

ORD record: ord-7f0b111c95ff405f8c13261632fe5682
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07576215B2

Reaction notes

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