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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 273371Generated: October 30, 2026

Citric Acid → HCID 58903178, compound

https://huagongshe.com/reaction/273371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 58903143HCID 58903143—
SolventTetrahydrofuranHCID 8028—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 58903178HCID 5890317836%

Reaction Steps

2′,6′-Dimethyl-4′-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-carbaldehyde (9.05 g, 29.2 mmol) was dissolved in a mixture of 1,2-dimethoxyethane (50 mL) and tetrahydrofuran (50 mL), and sodium borohydride (0.567 g, 15.0 mmol) was added under ice-cooling. The mixture was stirred at the same temperature for 3 hrs. 10% Aqueous citric acid solution was added to the reaction mixture and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (15%-50% ethyl acetate/hexane) to give the title compound (3.24 g, yield 36%) as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456218B2
Source datasetuspto-grants-2008_11
ORD IDord-d98125142a5a4a84a5282ffd321d7208
Source noteuspto-grants-2008_11