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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1111268Generated: October 31, 2026

Malonic Acid → HCID 605982, compound

https://huagongshe.com/reaction/1111268

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalonic AcidHCID 867—
Reactant2-Chloro-5-nitrobenzaldehydeHCID 72933—
SolventPyridineHCID 1049—
SolventPiperidineHCID 8082—
ProductHCID 605982HCID 60598280%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2 chloro-5-nitrobenzaldehyde (100 g., 0.54 mole), malonic acid (122 g., 1.2 mole) in pyridine (300 ml) and piperidine (5 ml) was heated at 100° C. for one hour, during which time considerable gassing occurred. After refluxing the reaction mixture for a further few minutes, it was then cooled. The resulting precipitate was collected, washed with water and dried to give an 80% yield, m.p. 226°-228° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04979982
Source datasetuspto-grants-1990_12
ORD IDord-f2b729ba37134af48d0e85dfdbea8896
Source noteuspto-grants-1990_12