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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1353554Generated: October 31, 2026

tert-Butyl 4-oxopiperidine-1-carboxylate → tert-butyl 3-[(dimethylamino)methylene]-4-oxotetrahydro-1(2H)-pyridinecarboxylate

https://huagongshe.com/reaction/1353554

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 4-oxopiperidine-1-carboxylateHCID 735900—
SolventDimethylformamide dimethyl acetalHCID 78373—
Producttert-butyl 3-[(dimethylamino)methylene]-4-oxotetrahydro-1(2H)-pyridinecarboxylateHCID 53395404—

Reaction Steps

4-Oxo-piperidine-1-carboxylic acid tert-butyl ester (10 g, 50 mmol) was dissolved in dimethyl formamide dimethylacetal (50 mL) and heated to reflux for 1.25 h. The solution was cooled, concentrated, and purified by flash chromatography to give 2.55 g (19%). Mass spec.: 255.16 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07220862B2
Source datasetuspto-grants-2007_05
ORD IDord-f235f98bec2a4774b8b8666f497117cf
Source noteuspto-grants-2007_05