Tributylvinyltin → 5-ethenyl-2-(5-{1-[4-(methylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridine

HRID 1881993Notes

Reaction equation

Br[C:2]1[CH:3]=[CH:4][C:5]([C:8]2[NH:9][C:10]([CH:13]([C:21]3[CH:26]=[CH:25][C:24]([S:27]([CH3:30])(=[O:29])=[O:28])=[CH:23][CH:22]=3)[CH2:14][CH:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[CH:11][CH:12]=2)=[N:6][CH:7]=1.[CH2:31]([Sn](CCCC)(CCCC)C=C)[CH2:32]CC>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>[CH:31]([C:2]1[CH:3]=[CH:4][C:5]([C:8]2[NH:9][C:10]([CH:13]([C:21]3[CH:22]=[CH:23][C:24]([S:27]([CH3:30])(=[O:28])=[O:29])=[CH:25][CH:26]=3)[CH2:14][CH:15]3[CH2:16][CH2:17][O:18][CH2:19][CH2:20]3)=[CH:11][CH:12]=2)=[N:6][CH:7]=1)=[CH2:32]

Participants

Conditions

Temperature: 110 °C

Procedure

To a solution of 5-bromo-2-(5-{1-[4-(methylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridine (1.50 g) in toluene (20 mL) were added tributyl(vinyl)tin (900 μL) and tetrakistriphenylphosphinepalladium(0) (315 mg), and the mixture was stirred under argon atmosphere at 110° C. overnight. After cooling to room temperature, the reaction mixture was concentrated, and the residue was subjected to silica gel column chromatography. The title compound (950 mg, yield 71%) was obtained as a yellow amorphous solid from a fraction eluted with ethyl acetate-hexane (1:1, volume ratio). MS: 437 (MH+).

Workup

temperatureAfter cooling to room temperature
concentrationthe reaction mixture was concentrated

Sources & evidence

ORD record: ord-d6d77407bc4048ac8938983de09abce2
Source dataset: uspto-grants-2012_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08318746B2

Reaction notes

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