HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl cyanoacetate → HCID 21855808, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl cyanoacetate | HCID 7764 | — |
| Reactant | Benzene, 1-bromo-4-(trifluoromethyl)- | HCID 67872 | — |
| Reactant | Magnesium | HCID 5462224 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | HCID 21855808 | HCID 21855808 | 87.4% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04144047 |
| Source dataset | uspto-grants-1979_03 |
| ORD ID | ord-eca0cd70cafe4becb18ed8bca5a7b6ee |
| Source note | uspto-grants-1979_03 |