Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 20402696 | HCID 20402696 | — |
| Solvent | Isopropanol | HCID 3776 | — |
| Product | HCID 20402705 | HCID 20402705 | — |
Reaction Steps
The compound of example 1 (79.4 g) was suspended in isopropanol containing 2.1% of HCl (3700 ml) and refluxed for 2 hours with stirring. The reaction mixture was then cooled to 0° C. and a first crop (61 g) of the compound of the title which crystallized out was recovered by filtration. A second crop (9 g) was obtained by concentrating the mother liquors to a small volume. M.p. 220°-223° C. with decomposition.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04402970 |
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| Source dataset | uspto-grants-1983_09 |
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| ORD ID | ord-bd5492f3009a46218af7d6f893f7bc3a |
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| Source note | uspto-grants-1983_09 |
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