Succinimide → Monosodium Aspartate
Reaction equation
[NH2:1][C@H:2]([C:7]([O-:9])=[O:8])[CH2:3][C:4]([OH:6])=[O:5].[Na+:10].C1(=O)[NH:15]C(=O)CC1>>[NH2:1][C@H:2]([C:7]([O-:9])=[O:8])[CH2:3][C:4]([OH:6])=[O:5].[Na+:10].[NH2:1][C@H:2]([C:7]([O-:9])=[O:8])[CH2:3][C:4]([OH:6])=[O:5].[NH4+:15]Participants
4
Procedure
FIG. 9. Infrared spectrum of the 2:1 copolymer of monosodium aspartate and succinimide, produced via thermal polymerization of monosodium aspartate and monoammonium aspartate at 200° C. for 3 hours. The amide peaks in the region of 1600 cm−1 became more prominent with increasing relative amounts of monosodium aspartate monomer. The imide peak at ˜1716 cm−1 tended to become accentuated with longer reaction times, as aspartic acid residues were driven more toward the succinimide form. Again, the carboxylate peak at ˜1400 cm−1 is prominent and the monomeric peaks in the fingerprint region (<1000 cm−1) are absent.
Sources & evidence
- ORD record
- ord-2b2065e067c14ae19ae83ebf6c5bb35f
- Source dataset
- uspto-grants-2004_04
- Patent number
- US06720405B2
Reaction notes
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