HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonia → L-Aspartic Acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonia | HCID 222 | — |
| Reactant | Maleic Anhydride | HCID 7923 | — |
| Reactant | Ammonium Hydroxide | HCID 14923 | — |
| Reactant | Maleic Acid | HCID 444266 | — |
| Solvent | Water | HCID 962 | — |
| Product | L-Aspartic Acid | HCID 5960 | — |
Reaction Steps
In a 250 ml reagent bottle, an amount of 69 ml (0.11 mole) of a 10% solution of concentrated ammonium hydroxide (15.9 M) was slowly added with smooth stirring to 9.8 g (0.1 mole) of maleic anhydride in 18 ml (1 mole) of water at 60° C. The bottle was capped and the solution allowed to react for 2 hours. The anhydride converted to maleic acid in the presence of the water, and the ammonia added across the double bond of maleic acid to form aspartic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06495658B2 |
| Source dataset | uspto-grants-2002_12 |
| ORD ID | ord-5b1627ba9880457e864938ed3c99e499 |
| Source note | uspto-grants-2002_12 |