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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1937812Generated: October 31, 2026

Potassium bisulfate → HCID 17917748, compound

https://huagongshe.com/reaction/1937812

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium bisulfateHCID 516920—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantHCID 21339390HCID 21339390—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 17917748HCID 1791774886%

Reaction Conditions

Temperature0 °C

Reaction Steps

The amide from above (4.7 g, 14.7 mmol) was dissolved in 50 mL THF and added to a slurry of LiAlH4 (558 mg, 14.7 mmol) in 50 mL THF at −78° C. The reaction mixture was allowed to warm to 0° C. and maintained for 15 min, after which time it was cooled to −78° C. and cannulated into an ice-cooled solution of KHSO4 (8.16 g, 60 mmol) in 200 mL H2O. The resulting mixture was extracted with 5×100 mL EtOAc. The combined extracts were washed with 2×100 mL satd.NaHCO3 and 1×100 mL brine, dried with Na2SO4 and evaporated to an oily residue which was flash chromatographed through SiO2 (25% EtOAc/hexane—35% EtOAc/hexane) yielding 2.8 g (86%) of pyridine-2-carboxylic acid (1-formyl-3-methylbutyl)amide as a colorless oil which solidified on standing.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06395897B1
Source datasetuspto-grants-2002_05
ORD IDord-75c309ff483c4009aeec41de1b034b52
Source noteuspto-grants-2002_05