HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20255Generated: October 27, 2026
Isopropanol → HCID 178475127, compound
https://huagongshe.com/reaction/20255
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Isopropanol | HCID 3776 | — |
| Reactant | 2-Bromoethanol | HCID 10898 | — |
| Reactant | 4-Amino-1,2,4-triazole | HCID 11432 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 178475127 | HCID 178475127 | — |
Reaction Steps
5.000 grams, 59.4 mmoles of 4-amino-1,2,4-triazole was dissolved in 200 ml of fresh acetonitrile and stirred vigorously. 29.800 grams of 2-bromoethanol was added slowly to the solution by pipet. After the addition was complete, the reaction mixture was heated for 20 hours at 80° C., until thin layer chromatography revealed that all of the 4-amino-1,2,4-triazole had been consumed. The reaction mixture was then allowed to cool to room temperature and then was rotary evaporated down to leave a viscous oil. Hot isopropyl alcohol was added to the oil dissolving it. Storage of the resultant solution in a refrigerator resulting in a large crop of a viscous oil of 1-ethanol-4-amino-1,2,4-triazolium bromide, 9.9332 g, 47.5 mmoles. Melting point 0-5° C.; DSC onset 180° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07745635B1 |
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| Source dataset | uspto-grants-2010_06 |
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| ORD ID | ord-636d9b24fc2f447daf8cdd76a40f5893 |
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| Source note | uspto-grants-2010_06 |
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