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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1963187Generated: October 30, 2026

Triethylamine → HCID 66731635, compound

https://huagongshe.com/reaction/1963187

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantLithium BromideHCID 82050—
ReactantHCID 66734975HCID 66734975—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
Solventtert-Butyl methyl etherHCID 15413—
ProductHCID 66731635HCID 6673163591.5%

Reaction Steps

Dimethyl 2-(2,4-dichlorophenyl)piperidine-1,4-dicarboxylate (2.78 g, 8.03 mmol) was dissolved in acetonitrile (27.1 mL) and water (0.542 mL). Lithium bromide (5.58 g, 64.24 mmol) and triethylamine (4.48 mL, 32.12 mmol) were added and the resulting mixture heated under reflux for 4 h, diluted with Water and MTBE and the organic layer extracted with water. The combined aqueous layers were acidified with 3 M HCl, extracted with MTBE, dried over MgSO4, filtered and evaporated to give 2-(2,4-dichlorophenyl)-1-(methoxy-carbonyl)piperidine-4-carboxylic acid (2.440 g, 91%) as a foam. MS m/z 332 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08415378B2
Source datasetuspto-grants-2013_04
ORD IDord-96ec863da0074661b072efff3379791c
Source noteuspto-grants-2013_04