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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 893101Generated: October 29, 2026

Cyanoacetamide → HCID 19790387, compound

https://huagongshe.com/reaction/893101

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanoacetamideHCID 7898—
ReactantTetrahydrofuranHCID 8028—
Reactantp-Chlorophenacyl bromideHCID 68303—
ReactantPotassium tert-butoxideHCID 23665647—
SolventWaterHCID 962—
SolventEthyl acetate hexaneHCID 21226206—
SolventSodium chloride; waterHCID 57417360—
ProductHCID 19790387HCID 1979038720%

Reaction Steps

To a stirred mixture of cyanoacetamide (2.5 g, 0.030 mol) and tetrahydrofuran (160 mL) is slowly added potassium tert-butoxide (3.3 g, 0.030 mol) followed by p-chlorophenacyl bromide (7.0 g, 0.030 mol). The reaction is slightly exothermic and, after a short time, TLC shows none of the p-chlorophenacyl bromide present. The reaction mixture is diluted with water and brine and extracted with ether. The ether extract is dried and concentrated in vacuo to give a red oil. Upon addition of a hexane/ethyl acetate mixture (3:1) to the oil a solid forms and is collected by filtration to give the title product as a light yellow solid (1.4 g, 20%, mp 160°-161° C.) which is identified by IR and NMR spectral analyses.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05122615
Source datasetuspto-grants-1992_06
ORD IDord-d86ca1e9c86a451293f0244167be8c7d
Source noteuspto-grants-1992_06