HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 23453416, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | O-Phenylenediamine | HCID 7243 | — |
| Reactant | Triethyl 4-phosphonobutyrate | HCID 281201 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | HCID 23453416 | HCID 23453416 | 51.5% |
Reaction Steps
If 110 g (0.43 mol) of triethyl 4-phosphonobutyrate and 48.6 g (0.45 mol) of o-phenylenediamine are reacted with one another in 200 g of concentrated HCl and 200 g of H2O according to Example 1, 52.5 g (51.5% of theory) of 3-[benzimidazol-2-yl]-propanephosphonic acid are obtained as light grey crystals with a melting point of about 280° C. (decomposition). ##STR19##
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04278791 |
| Source dataset | uspto-grants-1981_07 |
| ORD ID | ord-96034c52eaf84c2491f459c3af6b8fb0 |
| Source note | uspto-grants-1981_07 |