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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 910673Generated: October 26, 2026

Isopropanol → 1-Methyl-4-(2-thiophen-3-yl-pyridin-4-yl)-piperazine

https://huagongshe.com/reaction/910673

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropanolHCID 3776—
Reactant1-MethylpiperazineHCID 53167—
Reactant4-Chloro-2-thiophen-3-yl-PyridineHCID 67242223—
CatalystHydrochloric AcidHCID 313—
SolventWaterHCID 962—
Product1-Methyl-4-(2-thiophen-3-yl-pyridin-4-yl)-piperazineHCID 25218146—

Reaction Conditions

Temperature180 °C

Reaction Steps

To a microwave tube was added 4-chloro-2-thiophen-3-yl-pyridine (50 mg, 0.26 mmol), 1-methylpiperazine (100 mg, 1 mmol), 2-propanol (0.7 mL) and concentrated HCl (1 drop). The resulting mixture was heated at 180° C. for 40 min using a Personal Chemistry Smith Synthesizer. The resulting mixture was poured into water and extracted with CH2Cl2. The organic layer was dried and concentrated, and the residue was purified by preparative TLC (CH2Cl2/MeOH) to yield the title compound as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022209B2
Source datasetuspto-grants-2011_09
ORD IDord-4e34362b413945fd84f4b7e02aae39dc
Source noteuspto-grants-2011_09