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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 62890Generated: October 25, 2026

Hydrochloric Acid → 2-Chloro-4-hydroxybenzaldehyde

https://huagongshe.com/reaction/62890

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrahydrofuranHCID 8028—
ReactantDiisobutylaluminum hydrideHCID 14487—
Reactant2-Chloro-4-hydroxybenzonitrileHCID 592797—
Product2-Chloro-4-hydroxybenzaldehydeHCID 185363—

Reaction Conditions

Temperature-78 °C

Reaction Steps

After 2-chloro-4-hydroxy-benzonitrile (2 g, 0.013 mol) was dissolved in anhydrous THF (40 mL), DIBAL-H 1M hexane solution (21.7 mL, 0.032 mol) was added thereto at −78° C., and the mixture was stirred for 1 hour, and then stirred at room temperature for 2 hours. After the termination of the reaction, the reactant was added with 1M HCl at 0° C. and then extracted with EtOAc. The organic layer was separated, dried with MgSO4, and concentrated under reduced pressure to obtain the title compound, which was used in the next step without a separate purification process.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447044B2
Source datasetuspto-grants-2016_09
ORD IDord-40264fe6f229486c8612a904a343b595
Source noteuspto-grants-2016_09