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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2174730Generated: October 31, 2026

Acetic Acid → HCID 178478068, compound

https://huagongshe.com/reaction/2174730

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantHydrazineHCID 9321—
ReactantDimethylformamide dimethyl acetalHCID 78373—
ReactantHCID 56642748HCID 56642748—
SolventTolueneHCID 1140—
ProductHCID 178478068HCID 1784780685.1%

Reaction Conditions

Temperature40 °C

Reaction Steps

A mixture of 5-(4-chlorobenzyl)-2-pyridin-4-yl-1,3-oxazole-4-carboxamide (0.130 g, 0.41 mmol) and 1,1-Dimethoxy-N,N-dimethylmethanamine (3.0 mL, 22 mmol) in Toluene (25 mL) was heated under argon at 40° C. overnight. The reaction mixture was then concentrated to an oily residue. Acetic acid (20 mL, 350 mmol) and Hydrazine (1.0 mL, 30 mmol) were added to the flask and the mixture was heated 60° C. for another 1 hour. The mixture was concentrated and the residue was purified by HPLC to afford 4-[5-(4-chlorobenzyl)-4-(4H-1,2,4-triazol-3-yl)-1,3-oxazol-2-yl]pyridine (7 mg, 5. 2%). LCMS (FA) ES+338.0, 339.9. 1H NMR (400 MHz, MeOD) δ ppm 8.73-8.64 (m, 2H), 8.49-8.33 (m, 1H), 8.05-7.97 (m, 1H), 7.89-7.75 (m, 2H), 7.38 (d, J=7.16 Hz, 2H), 7.30 (d, J=6.64 Hz, 2H), 4.60 (s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09062038B2
Source datasetuspto-grants-2015_06
ORD IDord-31bca1c276fc4ddd944569faa9406025
Source noteuspto-grants-2015_06