Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | Zinc Sulfate Heptahydrate | HCID 62640 | — |
| Reactant | HCID 18954600 | HCID 18954600 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 67790858 | HCID 67790858 | — |
Reaction Steps
Five parts of 3,5-di-t-butyl-2-ethoxybenzoic acid was dissolved in 80 parts of methyl alcohol, followed by the addition of an aqueous solution of 1.1 parts of 96% potassium hydroxide in 10 parts of water. The resulting mixture was heated to 60° C. An aqueous solution of 2.6 parts of zinc sulfate heptahydrate in 10 parts of water was dropped into the resulting mixture over a period of 15 minutes. After the completion of the dropping, the obtained mixture was stirred at that temperature for 2 hours, cooled to a room temperature and filtered to recover a white crystalline precipitate. This precipitate was dispersed in 60 parts of water, washed therewith and filtered. The filter cake was dried to give 3.9 parts of a white crystal. The melting point thereof was 178° to 180° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05368971 |
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| Source dataset | uspto-grants-1994_11 |
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| ORD ID | ord-4d7b4ffbc7474726b563299a7e90839f |
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| Source note | uspto-grants-1994_11 |
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