HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → HCID 54343451, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Benzoic acid, 4-[2-(5,6-dimethyl-2-benzoxazolyl)ethenyl]-, methyl ester | HCID 102316 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 54343451 | HCID 54343451 | 89.8% |
Reaction Steps
A mixture of 3.0 g methyl 4-[(5,6-dimethyl-2-benzoxazolyl)vinyl]benzoate, 25 mL of acetic acid, 9.0 mL of concentrated sulfuric acid, and 7 mL of water is stirred and refluxed for three hours. The mixture is cooled and added to water. The product is collected by filtration, washed with water and air dried. The crude product is recrystallized from N,N-dimethylformamide to give 2.57 g of 4-[2-(5,6-dimethyl-2-benzoxazolyl)vinyl]benzoic acid, which melts at >300° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04803241 |
| Source dataset | uspto-grants-1989_02 |
| ORD ID | ord-9ce406e63caa46fe8fd5db9efff1d59a |
| Source note | uspto-grants-1989_02 |