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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 431979Generated: October 30, 2026

Diazomethane → HCID 21942480, compound

https://huagongshe.com/reaction/431979

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazomethaneHCID 9550—
ReactantHCID 178505599HCID 178505599—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21942480HCID 2194248021.4%

Reaction Steps

To a solution of 3-(5-fluoro-pyrid-2-yl)-5-[3-fluoro-5-(1H-tetraazol -5-yl)-phenyl]-1,2,4-oxadiazole (30mg, 0.092 mmol) in tetrahydrofuran (1 mL), 0.5 M diazomethane (1 mL, 0.5 mmol, ether) was added. The reaction was quenched with water and extracted with dichloromethane. The product was purified by column chromatography with 20% ethyl acetate in hexanes to give 6.7 mg (21.4%) of 5-[3-fluoro -5-(1-methyl-1H-tetraazol-5-yl)-phenyl]-3-(5-fluoro-pyrid-2-yl)-1,2,4-oxadiazole. 1H-NMR (CDCl3), δ (ppm): 8.87 (s, 1H), 8.70 (d, 1H), 8.29 (dd, 1H), 8.10 (m, 2H), 7.62 (dt, 1H), 4.46 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06660753B2
Source datasetuspto-grants-2003_12
ORD IDord-7f2817244a784030983db825966b2d61
Source noteuspto-grants-2003_12