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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 869840Generated: October 29, 2026

Cesium carbonate → HCID 18980136, compound

https://huagongshe.com/reaction/869840

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1,2-Ethanediamine, N1,N1,N2-trimethyl-HCID 67338—
Reactant2-Bromo-4-nitroanisoleHCID 78870—
Reactant2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 11155794—
Catalystpalladium(II) acetateHCID 167845—
SolventTolueneHCID 1140—
ProductHCID 18980136HCID 1898013627%

Reaction Conditions

Temperature100 °C

Reaction Steps

An oven-dried flask was charged with cesium carbonate (2.28 g, 7 mmol, 1.4 eq), Pd(OAc)2 (79 mg, 0.35 mmol, 0.07 eq), and X-phos (238 mg, 0.5 mmol, 0.1 eq) under nitrogen. 2-bromo-1-methoxy-4-nitrobenzene (1.16 g, 5 mmol, 1 eq), N1, N2, N2-trimethylethane-1,2-diamine (613 mg, 6 mmol, 1.2 eq) and toluene (20 mL, 0.25 M) were added, and the mixture was heated to 100° C. with stirring overnight. The reaction mixture was cooled to room temperature and concentrated. The crude product was then purified by flash chromatography on silica gel to give N1-(2-methoxy-5-nitrophenyl)-N1, N2, N2-trimethylethane-1,2-diamine (2) (340 mg, 1.34 mmol, 27%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969396B2
Source datasetuspto-grants-2015_03
ORD IDord-8edbe109ebcf42618adc20ae826192bc
Source noteuspto-grants-2015_03