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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 742572Generated: October 30, 2026

Sodium Bicarbonate → HCID 15293228, compound

https://huagongshe.com/reaction/742572

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 23361269HCID 23361269—
SolventHydrogen BromideHCID 260—
ProductHCID 15293228HCID 1529322883.5%

Reaction Steps

A solution of 5-(3-methoxyphenyl)-1-(4-pyridinylmethyl)-2-pyrrolidinone (2.9 g) and 48% hydrobromic acid (40 ml) was heated at 100° C. for 5.5 hrs. The reaction mixture was cooled to ambient temperature, neutralized with saturated sodium bicarbonate solution and extracted with dichloromethane (3 times). The combined organic extracts were dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated. The residue was purified by flash column chromatography (silica gel, ether/0-20% methanol). The appropriate fractions were collected and concentrated to give 2.3 g (81%) of product. Recrystallization from ether/methanol gave the analytical sample, mp 148°-150° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05554750
Source datasetuspto-grants-1996_09
ORD IDord-1d259f2ce9414aed98aebabf14f943c3
Source noteuspto-grants-1996_09