Sodium Carbonate → HCID 59699849, compound

HRID 85077Notes

Reaction equation

[Br:1][C:2]1[CH:3]=[C:4]2[C:10](I)=[CH:9][N:8]([S:12]([C:15]3[CH:21]=[CH:20][C:18]([CH3:19])=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:5]2=[N:6][CH:7]=1.[OH:22][C:23]1[CH:28]=[CH:27][C:26](B(O)O)=[CH:25][CH:24]=1.C([O-])([O-])=O.[Na+].[Na+]>CC#N.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>[Br:1][C:2]1[CH:3]=[C:4]2[C:10]([C:26]3[CH:27]=[CH:28][C:23]([OH:22])=[CH:24][CH:25]=3)=[CH:9][N:8]([S:12]([C:15]3[CH:21]=[CH:20][C:18]([CH3:19])=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:5]2=[N:6][CH:7]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a stirred suspension of 5-bromo-3-iodo-1-tosyl-1H-pyrrolo[2,3-b]pyridine (0.30 g, 0.62 mmol) and 4-hydroxyphenylboronic acid (0.12 mg, 0.75 mmol) in CH3CN (3 mL) was added 1 M Na2CO3 (3 mL) followed by bis(triphenylphosphine)palladium(II) dichloride (0.004 g, 0.062 mmol). The resulting mixture was stirred overnight at 60° C. After the mixture was evaporated to dryness in vacuo, it was dissolved in DMF (3 mL), absorbed onto Celite, and dried. The residue was purified via silica gel chromatography using CH2Cl2 as the eluent to obtain the title compound (0.26 g, 76%). 1H NMR (CDCl3, 300 MHz): δ 8.48 (d, J=2.1 Hz, 1H), 8.27 (bs, 1H), 8.26 (d, J=2.4 Hz, 1H), 8.08 (d, J=8.1 Hz), 7.85 (s, 1H), 7.81 (m, 1H), 7.50 (d, J=8.7 Hz, 1H), 7.37 (dd, J=1.8, 8.4 Hz), 7.30 (m, 3H), 6.63 (m, 1H), 2.39 (s, 3H); MS ESI (m/z): 443/445 (M+1)+, calc. 443.31.

Workup

customAfter the mixture was evaporated to dryness in vacuo, it
dissolutionwas dissolved in DMF (3 mL)
customabsorbed onto Celite
customdried
customThe residue was purified via silica gel chromatography

Sources & evidence

ORD record: ord-37b6775f784e453b8ed69f66ee15f64f
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08846909B2

Reaction notes

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