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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 528Generated: October 23, 2026

Ethyl 4-piperidinecarboxylate → Ethyl 1-(6-chloro-4-methyl-3-pyridinyl)piperidine-4-carboxylate

https://huagongshe.com/en/reaction/528

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4-piperidinecarboxylateHCID 70770—
Reactant5-Bromo-2-chloro-4-methylpyridineHCID 2734427—
ReagentSodium t-butoxideHCID 23676156—
CatalystPalladium (II) acetateHCID 4144353—
Catalyst2-Dicyclohexylphosphino-2',6'-diisopropoxybiphenylHCID 16217985—
SolventTolueneHCID 1140—
ProductEthyl 1-(6-chloro-4-methyl-3-pyridinyl)piperidine-4-carboxylateHCID 822251330%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of diacetoxypalladium (10.87 mg, 0.05 mmol) and dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine (45.2 mg, 0.10 mmol) dissolved in toluene (3 mL) was degassed and heated to 50°C for 30 minutes before adding ethyl piperidine-4-carboxylate (0.105 mL, 0.68 mmol), 5-bromo-2-chloro-4-methylpyridine (100 mg, 0.48 mmol) and sodium 2-methylpropan-2-olate (74.5 mg, 0.77 mmol) under nitrogen. The mixture was heated to 100°C for 2 hours. LCMS indicated little product so reaction abandoned.

Provenance & Evidence

Source dataset750 AstraZeneca ELN dataset
ORD IDord-e4f50ecc5cb146dc9c3dbbd5fbb158a0
Source note750 AstraZeneca ELN dataset