HuagongsheHuagongshe Chemistry Print Report · For research reference only
(+-)-Pantolactone → Keto-pantoyllactone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | (+-)-Pantolactone | HCID 989 | — |
| Catalyst | HCID 178419084 | HCID 178419084 | — |
| Product | Keto-pantoyllactone | HCID 39 | — |
Reaction Steps
α-Aluminium oxide coated with 10% vanadium pentoxide (V-0501S from Harshaw) is used as the catalyst in the reactor described in Example 1 and the temperature of the air bath is adjusted to 245° C. 60 l of air and 33 g of pantolactone are subsequently added hourly to the evaporator. 99% of the pantolactone are transformed and ketopantolactone is formed with a selectivity of 85%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04904805 |
| Source dataset | uspto-grants-1990_02 |
| ORD ID | ord-8473ef2f4bf9423ba3632eefe96512f4 |
| Source note | uspto-grants-1990_02 |