Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1497414Generated: October 31, 2026

Acetic Acid → HCID 178423777, compound

https://huagongshe.com/reaction/1497414

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantCyanoacetamideHCID 7898—
ReactantPiperidineHCID 8082—
ReactantHCID 89407569HCID 89407569—
SolventWaterHCID 962—
ProductHCID 178423777HCID 17842377713.8%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 3,3-dimethyl-2-oxocyclopentanecarbaldehyde sodium salt (5 g, 30.9 mmol) in water (10 mL) was added cyanoacetamide (2.5 g, 30.9 mmol), piperidine (2.6 g, 30.9 mmol in 10 mL water) and acetic acid (1 mL) in that order. The reaction mixture was stirred at 100° C. for about 26 h and then cooled to a temperature of about 20-35° C. The reaction mass was adjusted to pH value of about 6 and was then filtered off to obtain a crude product. The crude product was purified by column chromatography (60-120 mesh silica gel) with 10% ethyl acetate in petroleum ether as the eluent to obtain the desired product as a brown liquid (0.8 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09199967B2
Source datasetuspto-grants-2015_12
ORD IDord-7495c2d96162423f8d4b63b7d4bf06ce
Source noteuspto-grants-2015_12