HuagongsheHuagongshe Chemistry Print Report · For research reference only
alpha-Pinene oxide → 3-Cyclopentene-1-acetaldehyde, 2,2,3-trimethyl-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | alpha-Pinene oxide | HCID 91508 | — |
| Catalyst | Zinc bromide | HCID 10421208 | — |
| Solvent | Benzene | HCID 241 | — |
| Product | 3-Cyclopentene-1-acetaldehyde, 2,2,3-trimethyl- | HCID 98497 | 80% |
Reaction Steps
According to this article, α-pinene oxide rearranged exothermically in the presence of zinc bromide catalyst in benzene solvent to give about 80% yield of alpha-campholenic aldehyde (Scheme 1). Since then, this batch process, or variations thereof, has been described in numerous publications and patents.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06515186B2 |
| Source dataset | uspto-grants-2003_02 |
| ORD ID | ord-95fc5f36ceaa4b9d8c4e96a2e3efc6fe |
| Source note | uspto-grants-2003_02 |