2-Bromo-3-chloropyridine → HCID 178418209, Verbindung

HRID 645

Reaktionsgleichung

Reaktionsgleichung von HRID 645
CN1CC(N)C1.Cl.Clc1cccnc1Br>CC(C)(C)[O-].Cc1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.[Na+].[Pd].[Pd].c1ccc(P(c2ccccc2)c2ccc3ccccc3c2-c2c(P(c3ccccc3)c3ccccc3)ccc3ccccc23)cc1>CN1CC(Nc2ncccc2Cl)C1

Komponenten

7

Reaktionsbedingungen

Temperatur
115 °C

Versuchsvorschrift

Pd2(dba)3 (0.018 g, 0.02 mmol), 2,2'-bis(diphenylphosphanyl)-1,1'-binaphthalene (BINAP) (0.024 g, 0.04 mmol) and toluene (4 mL) was added to a flask. 2-bromo-3-chloropyridine (0.5 g, 2.60 mmol), 1-methylazetidin-3-amine hydrochloride (0.414 g, 3.38 mmol) and sodium 2-methylpropan-2-olate (0.624 g, 6.50 mmol) was added, the mixture bubbled with N2 for 5 min, then the reaction was heated to 115 °C in an oil-bath under nitrogen for 2h, then to rt over night. The reaction was cooled to rt and the solvent was evaporated. The residue was purified by automated flash chromatography on a 100g column. A gradient from 10% to 100% of EtOAc (with 2% TEA) in heptane over 25CV was used as mobile phase. The product was collected using the wavelength 243 and 308 nm. No product found in any fractions. Reaction discarded.

Quellen und Nachweise

ORD-Eintrag
ord-9a8d9c41c7b94faa97814a83a1ab2d95
Quelldatensatz
750 AstraZeneca ELN dataset
Originallink
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