HuagongsheHuagongshe Chemistry Print Report · For research reference only
(+-)-Pantolactone → Keto-pantoyllactone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | (+-)-Pantolactone | HCID 989 | — |
| Catalyst | Molybdenum trioxide | HCID 14802 | — |
| Catalyst | Hematite (Fe2O3) | HCID 14833 | — |
| Product | Keto-pantoyllactone | HCID 39 | — |
Reaction Steps
A mixture of iron (III) oxide and molybdenum trioxide (G-105 from Girdler) is used as the catalyst in the reactor described in Example 1 and the temperature of the air bath is adjusted to 225° C. 60 l of air and 33 g of pantolactone are subsequently added hourly to the evaporator. 96% of the pantolactone are transformed and ketopantolactone is formed with a selectivity of 83%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04904805 |
| Source dataset | uspto-grants-1990_02 |
| ORD ID | ord-c781faa2b1a44c349a9a32b4dad84e85 |
| Source note | uspto-grants-1990_02 |