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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 233286Generated: October 29, 2026

Pyridine → HCID 54471283, compound

https://huagongshe.com/reaction/233286

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantEthyl cyanoacetateHCID 7764—
ReactantPiperidineHCID 8082—
ReactantBenzaldehyde, 4-[2-[2-(2-chlorophenyl)-5-methyl-4-oxazolyl]ethoxy]-HCID 10991479—
SolventWaterHCID 962—
ProductHCID 54471283HCID 5447128396%

Reaction Steps

A mixture of 4-[2-[2-(2-chlorophenyl)-5-methyl-4-oxazolyl]ethoxy]benzaldehyde (2.0 g), ethyl cyanoacetate (0.795 g), piperidine (0.15 g) and pyridine (30 ml) was stirred for 2 hours at 100°-110° C. The reaction mixture was poured into water. Resulting crystalline precipitate was collected by filtration and recrystallized from dichloromethane-ethanol to give ethyl 4-[2-[2-(2-chlorophenyl)-5-methyl-4-oxazolyl]ethoxy]-α-cyanocinnamate (2.45 g, 96%) as colorless needles, m.p.120°-121° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05591862
Source datasetuspto-grants-1997_01
ORD IDord-4fd84f3a4204497a93df2c2c964b1741
Source noteuspto-grants-1997_01