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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1244188Generated: November 1, 2026

Hydrochloric Acid → HCID 21917840, compound

https://huagongshe.com/reaction/1244188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrahydrofuranHCID 8028—
ReactantHexaneHCID 8058—
Reactant2,2,6,6-TetramethylpiperidineHCID 13035—
Reactant3-Fluoro-5-iodotolueneHCID 12020436—
ReactantHCID 56611174HCID 56611174—
ReactantButyllithiumHCID 178418339—
SolventWaterHCID 962—
ProductHCID 21917840HCID 21917840—

Reaction Conditions

Temperature-20 °C

Reaction Steps

An initial charge of 31.1 g (0.22 mol) of 2,2,6,6-tetramethylpiperidine in 350 ml of tetrahydrofuran is cooled down to −20° C. 135 ml of 1.6 M butyllithium in hexane (0.22 mol) are added dropwise at this temperature. The mixture is cooled down to -18° C. and 47.2 g (0.2 mol) of 1-fluoro-3-iodo-5-methylbenzene are added dropwise at this temperature. The reaction mixture is stirred for another hour at −80° C. and then treated with 52.5 g (0.2 mol) of 3-(4′-propylbicyclohexyl-4-yl)propenal. The mixture is allowed to warm to 0° C., hydrolyzed with water and diluted hydrochloric acid and then subjected to conventional work-up.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07122228B2
Source datasetuspto-grants-2006_10
ORD IDord-8c5ad5f1b9994bde8fd04dcdb6f23f89
Source noteuspto-grants-2006_10