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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1493174Generated: November 1, 2026

Water → HCID 135816654, compound

https://huagongshe.com/reaction/1493174

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 15020700HCID 15020700—
SolventHydrogen BromideHCID 260—
ProductHCID 135816654HCID 13581665447.9%

Reaction Conditions

Temperature120 °C

Reaction Steps

2-(4-Ethyl-1-piperazinyl)-4-(4-methoxyphenyl)-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine (1.3 g) is dissolved in 48% hydrobromic acid (10 ml) and the mixture is stirred at 120° C. for 2 hours. After cooling, water is added thereto and the mixture is neutralized with 1N aqueous sodium hydroxide solution and sodium hydrogen carbonate. The resulting precipitate is collected by filtration, washed with water, and recrystallized from methanol to give the desired product (0.6 g), m.p. 250°-253° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05021421
Source datasetuspto-grants-1991_06
ORD IDord-fa61085517bf472d93110015086b9c31
Source noteuspto-grants-1991_06