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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1873762Generated: November 3, 2026

Malonic Acid → HCID 68714384, compound

https://huagongshe.com/reaction/1873762

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalonic AcidHCID 867—
ReactantPiperidineHCID 8082—
Reactant4-methyl-2-phenyl-1,3-thiazole-5-carbaldehydeHCID 2795491—
SolventPyridineHCID 1049—
ProductHCID 68714384HCID 68714384—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 300 mg (1.47 mmol) of 4-methyl-2-phenyl-thiazole-5-carbaldehyde, 169 mg (1.62 mmol) of malonic acid and 880 mg (10.33 mmol) of piperidine in 10 ml of pyridine was stirred at 90° C. for 5 h and at 100° C. for 6 h. After concentration, the residue was treated with a sodium hydrogencarbonate solution and ethyl acetate. The aqueous phase was separated and acidified. The precipitated product was filtered off with suction and dried. Yield: 260 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304438B2
Source datasetuspto-grants-2012_11
ORD IDord-e2683a4197b543759148cb397b8fe8ea
Source noteuspto-grants-2012_11