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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1904527Generated: November 1, 2026

Pyridine → HCID 20037297, compound

https://huagongshe.com/reaction/1904527

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantPivaloyl chlorideHCID 62493—
ReactantHCID 13883196HCID 13883196—
SolventTolueneHCID 1140—
ProductHCID 20037297HCID 2003729792%

Reaction Conditions

Temperature50 °C

Reaction Steps

15.9 g (0.05 mol) of 1-[N-(4-chloro-2-fluoro-5-methoxyphenyl)-carbamoyl]-2-hydroxymethylpiperidine (Example 1) and 4.7 g (0.06 mol) of pyridine are dissolved in 200 ml of toluene, and 6.0 g (0.05mol) of pivaloyl chloride are added dropwise at 20° C. The mixture is stirred for 3 hours at 50° C. and washed with twice 100 ml of water, and the toluene phase is dried over sodium sulfate. After the solvent as been removed, 18.4 g (92% of theory) of 1-[N-(4-chloro-2-fluoro-5-methoxyphenyl)-carbamoyl]-2-pivaloyloxymethylpiperidine are obtained in the form of a colorless viscous oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04838931
Source datasetuspto-grants-1989_06
ORD IDord-fca1f3c4a6e941afb4df3189020878e2
Source noteuspto-grants-1989_06