HuagongsheHuagongshe Chemistry Print Report · For research reference only
(+-)-Pantolactone → beta-Alanine, N-(2,4-dihydroxy-3,3-dimethyl-1-oxobutyl)-, calcium salt (2:1)
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | (+-)-Pantolactone | HCID 989 | — |
| Reactant | beta-Alanine, Calcium Salt (2:1) | HCID 161901 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | beta-Alanine, N-(2,4-dihydroxy-3,3-dimethyl-1-oxobutyl)-, calcium salt (2:1) | HCID 8714 | — |
Reaction Steps
reacting the anhydrous calcium beta-alaninate with dl-pantolactone in methanol at a temperature of from about 55° to about 65° C. for from about 6 to about 9 hours and therafter cooling and filtering the reaction product and removing methanol to obtain dl-calcium pantothenate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03935256 |
| Source dataset | uspto-grants-1976_01 |
| ORD ID | ord-60af56a37c3045d2aae9931090884190 |
| Source note | uspto-grants-1976_01 |