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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 348253Generated: October 29, 2026

1,8-Diazabicyclo(5.4.0)undec-7-ene → (5S)-5-azido-2-iodo-5-(6-quinolyl)-2-pentene

https://huagongshe.com/reaction/348253

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantP,P-Diphenylphosphinic azideHCID 199401—
Reactant(5R)-2-iodo-5-(6-quinolyl)-5-hydroxy-2-penteneHCID 86586613—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
Product(5S)-5-azido-2-iodo-5-(6-quinolyl)-2-penteneHCID 86586615—

Reaction Steps

A solution of (5R)-2-iodo-5-(6-quinolyl)-5-hydroxy-2-pentene (1.74 g) in 30 mL of toluene is cooled to 0° C. and treated with diphenylphosphoryl azide (1.65 g) and 1,8-diazabicyclo[5.4.0]undec-7-ene (0.91 g) for 2 hours. The mix is warmed to ambient temperature and diluted with ethyl acetate. The solution is washed sequentially with water, sat. NaHCO3, and brine, then dried over MgSO4, filtered, and evaporated. The product is purified by SiO2 chromatography.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07176235B2
Source datasetuspto-grants-2007_02
ORD IDord-92f6eca90ea14f8ea19f69162926641f
Source noteuspto-grants-2007_02