HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → HCID 54066414, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Isobutylene | HCID 8255 | — |
| Reactant | 4-(Benzyloxy)-2-methylidene-4-oxobutanoic acid | HCID 11321967 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 54066414 | HCID 54066414 | 90% |
Reaction Steps
To a stirred solution of 2-(benzyloxycarbonylmethyl)propenoic acid (25.0 g, 114.0 mmole) in dichloromethane (200 ml) at -78° C. was added condensed isobutylene (50 ml) and concentrated sulphuric acid (1 ml). The mixture was allowed to warm to room temperature and kept for 72 hours. After this time the solution was washed with 10% sodium carbonate solution (3×200 ml), dried over magnesium sulphate and evaporated to give the required ester as a pale yellow oil (28.4 g, 90%). Found: C,69.60; H,7.35. C16H20O4 requires: C,69.55; H,7.30%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05192800 |
| Source dataset | uspto-grants-1993_03 |
| ORD ID | ord-d0f197f5f6844444b8be1e128cf64c75 |
| Source note | uspto-grants-1993_03 |