Toluene → HCID 68699250, compound

HRID 878703Notes

Reaction equation

Br[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([Cl:12])[CH:3]=1.[CH:13]1(B(O)O)[CH2:15][CH2:14]1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].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.O>[Cl:12][C:4]1[CH:3]=[C:2]([CH:13]2[CH2:15][CH2:14]2)[CH:11]=[CH:10][C:5]=1[C:6]([O:8][CH3:9])=[O:7]

Participants

Conditions

Temperature: 110 °C

Procedure

Charged methyl 4-bromo-2-chlorobenzoate (1.50 g, 6.01 mmol), cyclopropylboronic acid (931 mg, 10.82 mmol), Pd(PPh3)4 (347 mg, 0.30 mmol), K3PO4 (1.82 g, 18.04 mmol), toluene (15 mL) and water (15 mL) to a flask, the mixture was then purged with nitrogen, and heated to 110° C. overnight. It was then cooled to room temperature and filtered, the filtrate was extracted with ethylacetate twice, concentrated the organic phase and purified by flash column chromatograph to give 800 mg of the title compound (63%). 1H NMR (400 MHz, CDCl3): δ 0.73-0.77 (2H, m), 0.98-1.07 (2H, m), 1.85-1.90 (1H, m), 3.90 (3H, s), 6.96 (1H, dd, J=1.6 Hz, 8.0 Hz), 7.11 (1H, d, J=1.6 Hz), 7.74 (1H, d, J=8.0 Hz).

Workup

customthe mixture was then purged with nitrogen
temperatureIt was then cooled to room temperature
filtrationfiltered
extractionthe filtrate was extracted with ethylacetate twice
concentrationconcentrated the organic phase
custompurified by flash column chromatograph

Sources & evidence

ORD record: ord-0dcb13d2d8e94653984ec476abed8eba
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08987461B2

Reaction notes

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