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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2355067Generated: November 1, 2026

Potassium Carbonate → HCID 68451991, compound

https://huagongshe.com/reaction/2355067

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-Bromo-1,3,4-thiadiazole-2-carbonitrileHCID 53388526—
ReactantHCID 53409201HCID 53409201—
SolventDimethylformamideHCID 6228—
ProductHCID 68451991HCID 68451991—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a mixture of 4-(2-bromophenoxy)pyrrolidine hydrochloride (0.5 g, 1.87 mmol) and 5-bromo-1,3,4-thiadiazole-2-carbonitrile (0.36 g, 1.87 mmol) in DMF (10 mL) was added K2CO3 (0.77 g, 5.61 mmol) under a nitrogen atmosphere. The mixture was stirred at 70° C. for 4 h. After dilution with water, the mixture was extracted with ethyl acetate. The combined organic extracts were washed with brine, dried over anhydrous Na2SO4, filtered and purified by preparative TLC with petroleum:EtOAc (2:1) to give the title compound. 1H NMR (300 MHz, CDCl3): δ 7.58 (d, 1H), 7.52 (t, 1H), 7.08 (t, 1H), 6.99 (d, 1H), 5.24 (m, 1H), 3.69-3.93 (m, 4H), 2.33-2.56 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07754745B2
Source datasetuspto-grants-2010_07
ORD IDord-672b6f16f4414f8c9913d70350e21785
Source noteuspto-grants-2010_07