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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 860004Generated: October 29, 2026

1-(2,3-Xylyl)piperazine → HCID 69605101, compound

https://huagongshe.com/reaction/860004

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2,3-Xylyl)piperazineHCID 70541—
Reactant[(2R)-8-methyl-2,3-dihydro[1,4]dioxino[2,3-f]quinolin-2-yl]methyl4-bromobenzenesulfonateHCID 20624762—
SolventDimethyl SulfoxideHCID 679—
SolventSodium BicarbonateHCID 516892—
ProductHCID 69605101HCID 6960510190%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 1-(2,3-dimethylphenyl)-piperazine (1.13 g, 5.94 mmol) and [(2R)-8-methyl-2,3-dihydro[1,4]dioxino[2,3-f]quinolin-2-yl]methyl 4-bromobenzene-sulfonate (871 mg, 1.93 mmol) in anhydrous DMSO (10 mL) was heated overnight at 70° C. The reaction was diluted with saturated aqueous sodium bicarbonate (50 mL) and extracted with EtOAc (3×50 mL). The combined organic layers were dried over MgSO4, filtered, and concentrated in vacuo. Flash chromatography on silica gel (50% EtOAc/hexanes) afforded 700 mg (90%) of the title compound as a white solid: mp 112–113° C.; MS (ESI) m/z 404 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07153849B2
Source datasetuspto-grants-2006_12
ORD IDord-dfef642342e24d8d81e6c217653f1eaf
Source noteuspto-grants-2006_12