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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 614187Generated: October 30, 2026

Ethyl cyanoacetate → HCID 21855808, compound

https://huagongshe.com/reaction/614187

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl cyanoacetateHCID 7764—
ReactantBenzene, 1-bromo-4-(trifluoromethyl)-HCID 67872—
ReactantMagnesiumHCID 5462224—
SolventDiethyl EtherHCID 3283—
ProductHCID 21855808HCID 2185580887.4%

Reaction Steps

To the Grignard reagent prepared from 98 g (0.436 mol) of p-bromobenzotrifluoride and 10.59 g (0.436 mol) of magnesium in ether was added 24.65 g (0.218 mol) of ethyl cyanoacetate dropwise with stirring and cooling in an ice bath. The resultant mixture was stirred at reflux for 24 hours. The usual workup gave 49.4 g of dark red-brown residue; distillation of this material gave 16.73 g (30%) of product, boiling point 120°-123° (0.15 torr).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04144047
Source datasetuspto-grants-1979_03
ORD IDord-eca0cd70cafe4becb18ed8bca5a7b6ee
Source noteuspto-grants-1979_03