HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → (6-Nitro-7-morpholino-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl)methanephosphonic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Bromotrimethylsilane | HCID 76113 | — |
| Reactant | (6-Nitro-7-morpholino-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl)methanephosphonic acid diethyl ester | HCID 17800789 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | (6-Nitro-7-morpholino-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl)methanephosphonic acid | HCID 21847686 | 26.5% |
Reaction Steps
259 mg of (6-nitro-7-morpholino-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl)methanephosphonic acid diethyl ester is mixed in 10 ml of absolute acetonitrile with 628 mg of trimethylbromosilane and stirred for 1 hour at room temperature. A little water is added, and it is evaporated to dryness. The residue is chromatographed on silanized silica gel with methanol as eluant. 60 mg of (6-nitro-7-morpholino-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl)methanephosphonic acid is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05750525 |
| Source dataset | uspto-grants-1998_05 |
| ORD ID | ord-534167ffe68a42648f1fad12814fe8b8 |
| Source note | uspto-grants-1998_05 |