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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1876649Generated: October 31, 2026

2-Methylpiperazine, (R)- → (R)-4-(3-methylpiperazin-1-yl)-N-(pyrimidin-4-yl)benzenesulfonamide

https://huagongshe.com/reaction/1876649

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methylpiperazine, (R)-HCID 7330434—
Reactant4-bromo-N-(pyrimidin-4-yl)benzenesulfonamideHCID 59465704—
Reactantsodium 2-methylpropan-2-olateHCID 178418730—
SolventTolueneHCID 1140—
Product(R)-4-(3-methylpiperazin-1-yl)-N-(pyrimidin-4-yl)benzenesulfonamideHCID 59465692100%

Reaction Steps

Synthesized according to general procedure 8. The reaction was set up with 4-bromo-N-(pyrimidin-4-yl)benzenesulfonamide (2.4 mmol), (R)-2-methylpiperazine (4.7 mmol), Pd(dba)3 (0.12 mmol) 2-(di-t-butylphosphino)biphenyl (0.50 mmol), NaO-tBu (10 mmol), and toluene (12 mL). For the purification, 10% MeOH in CH2Cl2 with the addition of 1% triethylamine was used as a solvent system to obtain the desired amine as a white solid. (900 mg, 100% yield). LC/MS (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)), m/z: M+1 obs=334.3; tR=0.4 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08309587B2
Source datasetuspto-grants-2012_11
ORD IDord-d1c95e0b58a44e5a9de9db6aa6f9eb5f
Source noteuspto-grants-2012_11