HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 444304Generated: October 30, 2026
Sodium Chloride → HCID 53934759, compound
https://huagongshe.com/reaction/444304
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Chloride | HCID 5234 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | HCID 136139912 | HCID 136139912 | — |
| Solvent | Hexamethylphosphoramide | HCID 12679 | — |
| Product | HCID 53934759 | HCID 53934759 | — |
Reaction Steps
3.72 g (0.085 mole) of 55% strength sodium hydride in paraffin oil are suspended in 150 ml of absolute tetrahydrofuran and 18.6 g (0.085 mole) of 2-(2-hydroxystyryl)-5-methyl-1,3,4-thiadiazole in 200 ml of absolute hexamethylphosphotriamide are then added dropwise in the course of 1.5 hours at from 0° to 3° C. Stirring is continued at room temperature for 1 hour, after which 11.7 g (0.085 mole) of dibromohydrin are added dropwise. The solution is left to stand at room temperature for 16 hours, after which it is poured onto 1.5 liters of ice water and 0.5 liter of saturated sodium chloride solution. The precipitated solid is filtered off and recrystallized from acetone. 11.8 g (51% of theory) of yellow crystals, of melting point 134°-135° C. are obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04263430 |
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| Source dataset | uspto-grants-1981_04 |
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| ORD ID | ord-6a247671397c4959b8dcda95fda621f5 |
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| Source note | uspto-grants-1981_04 |
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