HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → Ethyl 2-cyano-3-hydroxypropanoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Ethyl cyanoacetate | HCID 7764 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Catalyst | Rhodium, dicarbonyl(2,4-pentanedionato)- | HCID 5377512 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Ethyl 2-cyano-3-hydroxypropanoate | HCID 11008022 | 64% |
Reaction Steps
A reactor was charged with 0.26 g (1 mmol) of acetylacetonatodicarbonylrhodium, 0.52 g (2 mmol) of triphenylphosphine, and 200 ml of tetrahydrofuran (THF). The mixture was stirred for 10 minutes in a nitrogen atmosphere. After the dropwise addition of 10.54 g (130 mmol) of a 37% formaldehyde aqueous solution and 11.31 g (100 mmol) of ethyl 2-cyanoacetate, the mixture was reacted at 25° C. for 16 hours with stirring. After completion of the reaction, the reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (eluant: hexane/ethyl acetate (=10/1)) to obtain 9.16 g of ethyl 2-cyano-3-hydroxypropanoate shown by the following formula (M-18′) (yield: 64%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08603726B2 |
| Source dataset | uspto-grants-2013_12 |
| ORD ID | ord-f4155ef1c33b461eb3f7e3db2ada1976 |
| Source note | uspto-grants-2013_12 |