HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 20352418, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 70628361 | HCID 70628361 | — |
| Product | HCID 20352418 | HCID 20352418 | 86.4% |
Reaction Steps
200 g of p-ethoxycarbonylphenyl-methylphosphinic acid ethyl ester are refluxed with concentrated hydrochloride acid in excess. After the reaction is complete, the water and the hydrogen chloride are distilled off in a water jet pump vacuum. The residue is recrystallized from water. 135 g of p-carboxyphenyl-methylphosphinic acid having a melting point of 238°C to 240°C are obtained, corresponding to a yield of 87 90. ##SPC8##
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03974243 |
| Source dataset | uspto-grants-1976_08 |
| ORD ID | ord-53bb5f37b4764658b35ded06ee89c56d |
| Source note | uspto-grants-1976_08 |