Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 513186Generated: October 30, 2026

Potassium Carbonate → HCID 71212573, compound

https://huagongshe.com/reaction/513186

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2,5-DibromothiazoleHCID 312394—
Reactant3-Methylpyrrolidine--hydrogen chloride (1/1)HCID 12464314—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 71212573HCID 7121257392%

Reaction Conditions

Temperature100 °C

Reaction Steps

2,5-Dibromothiazole (250 mg, 1.029 mmole), 3-methyl-pyrrolidine hydrochloride (188 mg, 1.544 mmole), and K2CO3 (569 mg, 4.12 mmole) were combined in DMF (5 mL) then heated to 100° C. After stirring overnight the mixture was cooled to RT, diluted with H2O and extracted with EtOAc (3×). The combined organic layers were washed with H2O and brine, dried (MgSO4), filtered, and concentrated. Flash column chromatography (Biotage-SNAP-10 g SiO2, 0-50% EtOAc/hexanes) gave the title compound (234 mg, 92%) as a pale yellow oil. 1H NMR (399 MHz, CDCl3): δ 7.06 (s, 1 H); 3.58-3.45 (m, 2 H); 3.45-3.35 (m, 1 II); 2.97 (dd, J=9.7, 7.7 Hz, 1 H); 2.47-2.36 (m, 1 H); 2.20-2.10 (m, 1 H); 1.73-1.63 (m, 1 H); 1.12 (d, J=6.7 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09102673B2
Source datasetuspto-grants-2015_08
ORD IDord-61ea1cea5c5240718fac87406668c620
Source noteuspto-grants-2015_08