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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1581133Generated: November 1, 2026

Hydrogen Bromide → HCID 21561613, compound

https://huagongshe.com/reaction/1581133

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 21561588HCID 21561588—
SolventEthanolHCID 702—
ProductHCID 21561613HCID 21561613—

Reaction Conditions

Temperature90 °C

Reaction Steps

A solution of 1 g. of 3-methoxycarbonyloxy-5-methoxycarbonyloxymethyl-2-methylpyridine in an aqueous ethanol (10 ml. of ethanol and 5 ml. of water) was adjusted to pH 1-1.5 with 10% hydrobromic acid. The mixture was heated at 90°C for 30 minutes, then cooled and neutralized with sodium bicarbonate and extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate and concentrated into a small volume and the addition of n-hexane gave 0.45 g. of the desired product as colorless crystals melting at 187°-189°C, which showed no depression of melting point on admixture with the authentic sample and the IR spectrum coincided with that of the standard completely.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03935311
Source datasetuspto-grants-1976_01
ORD IDord-dd239861ed674cd599bc466206cc2840
Source noteuspto-grants-1976_01