HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dimethylamine → 2-Carboxy-4-methyl-2-[(dimethylamino)methyl]pentanoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dimethylamine | HCID 674 | — |
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Isobutylmalonic acid | HCID 78069 | — |
| Solvent | Water | HCID 962 | — |
| Product | 2-Carboxy-4-methyl-2-[(dimethylamino)methyl]pentanoic acid | HCID 13017556 | 63% |
Reaction Conditions
| Temperature | 5 °C |
|---|
Reaction Steps
2-Carboxy-4-methylpentanoic acid (67 g) is suspended in 400 ml of water and cooled to 5° C. Aqueous 40% dimethylamine (50 g) is added to the suspension followed by aqueous 37% formaldehyde (35.7 g). The resulting solution is stirred for about 16 hours and solid product is filtered and dried in vacuo to yield 57.3 g of the title compound, melting point 134°-137° C. with carbon dioxide and dimethylamine given off.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04263293 |
| Source dataset | uspto-grants-1981_04 |
| ORD ID | ord-1764e36943b84ecdaed90320f5ae4ed7 |
| Source note | uspto-grants-1981_04 |