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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1254051Generated: November 3, 2026

Pyrazole → HCID 44554075, compound

https://huagongshe.com/reaction/1254051

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
ReactantN,N'-DimethylethylenediamineHCID 8070—
ReactantPotassium tert-butoxideHCID 23665647—
ReactantHCID 44554077HCID 44554077—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 44554075HCID 44554075—

Reaction Conditions

Temperature150 °C

Reaction Steps

To a microwave tube were added 2-[5-[(4-chlorophenyl)thio]-4-(4-iodophenyl)-1-methyl-1H-imidazol-2-yl]pyridine (Example 61, 150 mg, 0.30 mmol), CuI (57 mg, 0.30 mmol), pyrazole (61 mg, 0.89 mmol), N,N′-dimethylethylenediamine ((79 mg, 0.89 mmol), potassium t-butoxide (100 mg, 0.89 mmol), and 4 mL of NMP. The reaction was heated at 150° C. for 90 min via microwave. After filtration through Celite, the reaction mixture was purified by reverse phase HPLC to afford the title compound. 1H NMR (500 MHz, (CDCl3): 8.65 (d, 1H), 8.37 (d, 1H), 8.24 (d, 2H), 7.98 (broad s, 1H), 7.84 (t, 1H), 7.43 (d, 2H), 7.36 (t, 1H), 7.25 (d, 2H), 7.04 (d, 2H), 4.15 (s, 3H). LCMS: m/z 444 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08455528B2
Source datasetuspto-grants-2013_06
ORD IDord-398deea36c4d4e56a8733acb80faf1cc
Source noteuspto-grants-2013_06