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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 386112Erstellt: 27. Oktober 2026

Cesium carbonate → N'-(4-bromopyrimidin-2-yl)-N,N-dimethylsulfamide

https://huagongshe.com/reaction/386112

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktCesium carbonateHCID 10796—
EduktN,N-DimethylsulfamideHCID 134472—
Edukt1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
Edukt2,4-DibromopyrimidineHCID 14976301—
KatalysatorBis(dibenzylideneacetone)palladiumHCID 9811564—
Lösungsmittel1,4-DioxaneHCID 31275—
ProduktN'-(4-bromopyrimidin-2-yl)-N,N-dimethylsulfamideHCID 59526288—

Reaktionsbedingungen

Temperatur100 °C

Reaktionsschritte

2,4-Dibromopyrimidine (0.50 g, 2.11 mmol), N,N-dimethylsulfamide (0.26 mg, 2.11 mmol), cesium carbonate (2.75 g, 8.44 mmol), Pd2(dba)3 (0.10 mg, 0.11 mmol), and Xantphos (0.18 mg, 0.32 mmol) were placed in a flask. Dioxane (24 mL) was added and argon was bubbled through the solution for several minutes. The reaction was then heated at 100° C. overnight. The reaction was cooled to ambient temperature, diluted with ethyl acetate, washed with saturated sodium bicarbonate, dried over magnesium sulfate, filtered and concentrated. Reverse phase HPLC was used for purification to yield the title compound.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08367706B2
Quelldatensatzuspto-grants-2013_02
ORD IDord-e19c56592412448cb3a2c0c46f28c929
Quellennotizuspto-grants-2013_02