HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → HCID 5244318, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Ethyl 4-chloroacetoacetate | HCID 69484 | — |
| Reactant | Ethylorthoformate | HCID 53630039 | — |
| Product | HCID 5244318 | HCID 5244318 | 90.3% |
Reaction Steps
10 g (60.7 mM) of ethyl 4-chloroacetoacetate, 18 g (121 mM) of ethyl orthoformate and 25 g (245 mM) of acetic anhydride were stirred at 110° C. for 3 hours. Then, excessive ethyl orthoformate and acetic anhydride were distilled off under vacuum and the residue was recrystallized from hexane to obtain 12.1 g of a needle-like crystal with an yield of 90%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04742165 |
| Source dataset | uspto-grants-1988_05 |
| ORD ID | ord-a8fb965cdfba455998b9b8025f062a16 |
| Source note | uspto-grants-1988_05 |