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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1792634Generated: November 4, 2026

Malonic Acid → HCID 10496253, compound

https://huagongshe.com/reaction/1792634

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalonic AcidHCID 867—
ReactantPiperidineHCID 8082—
ReactantHCID 10636680HCID 10636680—
SolventPyridineHCID 1049—
ProductHCID 10496253HCID 1049625391%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of the aldehyde (1.50 g, 5.3 mmol) from Example 1A, malonic acid (1.21 g, 11.6 mmol), piperidine (78.6 μL, 0.80 mmol) in 8.0 mL of anhydrous pyridine was heated at 110° C. for 2 hours. Gas evolution ceased during this period. Pyridine was then removed under vacuum. Water and 3N aq. HCl were then added with stirring. The desired cinnamic acid was then collected through filtration, washed with cold water and dried in a vacuum oven overnight to give 1.56 g (4.8 mmol, 91%) of white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE039197E1
Source datasetuspto-grants-2006_07
ORD IDord-a55915c5675745f185b41affe3737c03
Source noteuspto-grants-2006_07