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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1091577Generated: November 2, 2026

Hydrochloric Acid → HCID 178524759, compound

https://huagongshe.com/reaction/1091577

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 4-acetoxy-6-(acetoxymethyl)-5-(benzyloxy)nicotinateHCID 59600561—
SolventMethanolHCID 887—
ProductHCID 178524759HCID 17852475968%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of the compound 8 (46.8 g, 125 mmol) in methanol (140 ml) was added a 2N aqueous sodium hydroxide solution (376 ml) under ice-cooling, and this was stirred at 50° C. for 40 minutes. To the reaction solution were added diethyl ether and 2N hydrochloric acid under ice-cooling, and precipitated crystals were filtered. Resulting crystals were washed with water and diethyl ether to obtain 5-benzyloxy-4-hydroxy-6-hydroxymethyl-nicotinic acid 9 (23.3 g, 68%) as a colorless crystal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08129385B2
Source datasetuspto-grants-2012_03
ORD IDord-58931085b7b144af8545df6cb110b6c6
Source noteuspto-grants-2012_03