HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → chrysanthemic acid d-trans-form
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Ethyl chrysanthemate | HCID 7334 | — |
| Product | chrysanthemic acid d-trans-form | HCID 16747 | 80.5% |
Reaction Steps
The water layer was made acidic with sulfuric acid and extracted with toluene (80 g) two times. The toluene layer was washed and evaporated, and the residue was distilled under reduced pressure to give trans-chrysanthemic acid (47.1 g; trans-isomer, 80.5 %). B.P. 110° to 114°C/2 mmHg.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03943167 |
| Source dataset | uspto-grants-1976_03 |
| ORD ID | ord-3556e4eb9bea4bf1a3c659a1dcdfbbb2 |
| Source note | uspto-grants-1976_03 |