HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 359722, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Diethyl Oxalate | HCID 7268 | — |
| Reactant | 1,8-Diazabicyclo(5.4.0)undec-7-ene | HCID 81184 | — |
| Reactant | 4-Chlorobenzyl cyanide | HCID 241582 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 359722 | HCID 359722 | 54% |
Reaction Steps
A 542 μL (3.63 mmol) sample of DBU was added to a solution of 500 mg (3.30 mmol) of 4-chlorophenylacetonitrile and 493 μL (3.63 mmol) of diethyloxalate in 1.6 mL of acetonitrile. After ca. 10 min, the mixture was diluted with ethyl acetate and acidified with dilute HCl. The organic phase was washed with three portions of water, dried and stripped to an oily solid. Trituration with hexane/butyl chloride yielded 414 mg, m. p. 135-136° C. A second crop of 35 mg gave a total yield of 54% of ethyl 3-(4-chlorophenyl)-3-cyano-2-oxopropanoate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08153688B2 |
| Source dataset | uspto-grants-2012_04 |
| ORD ID | ord-e2e22ebb436042e783128f70d5e1920a |
| Source note | uspto-grants-2012_04 |