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

HRID 1881972Notes

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]([CH:30]4[CH2:32][CH2:31]4)(=[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.[CH2:33]([Sn](CCCC)(CCCC)C=C)[CH2:34]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:30]1([S:27]([C:24]2[CH:25]=[CH:26][C:21]([CH:13]([C:10]3[NH:9][C:8]([C:5]4[CH:4]=[CH:3][C:2]([CH:33]=[CH2:34])=[CH:7][N:6]=4)=[CH:12][CH:11]=3)[CH2:14][CH:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[CH:22][CH:23]=2)(=[O:29])=[O:28])[CH2:32][CH2:31]1

Participants

Conditions

Temperature: 110 °C

Procedure

To a solution of 5-bromo-2-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridine (200 mg) in toluene (2 mL) were added tributyl(vinyl)tin (115 μL) and tetrakistriphenylphosphinepalladium(0) (40 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 (120 mg, yield 67%) was obtained as a yellow amorphous solid from a fraction eluted with ethyl acetate-hexane (1:1, volume ratio). MS: 463 (MH+).

Workup

temperatureAfter cooling to room temperature
concentrationthe reaction mixture was concentrated

Sources & evidence

ORD record: ord-acaffd0ef1054dfea9d70740dd5e484c
Source dataset: uspto-grants-2012_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08318746B2

Reaction notes

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