HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → 3-Allyl-4-acetoxy-cinnamic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 3-Allyl-4-hydroxy-cinnamic acid | HCID 54062875 | — |
| Solvent | Sodium Hydroxide | HCID 14798 | — |
| Product | 3-Allyl-4-acetoxy-cinnamic acid | HCID 53887162 | — |
Reaction Steps
118 g (0.058 mol) of 3-allyl-4-hydroxy-cinnamic acid are dissolved in 580 ml of 2 N sodium hydroxide solution, 800 g of ice are added and 120 g (1.16 mols) of acetic anhydride are introduced dropwise over the course of 15 minutes at 0°-5° C., whilst stirring. The crystals which have precipitated are then separated off, suction-dried and recrystallised from ethyl acetate. 3-Allyl-4-acetoxy-cinnamic acid of melting point 143°-144° C. is thus obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04038414 |
| Source dataset | uspto-grants-1977_07 |
| ORD ID | ord-d8b78ea90688407799f4a483bbba9d58 |
| Source note | uspto-grants-1977_07 |