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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 223374Generated: October 30, 2026

Sodium Chloride → HCID 53934759, compound

https://huagongshe.com/reaction/223374

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantTetrahydrofuranHCID 8028—
ReactantSodium hydrideHCID 24758—
ReactantHCID 136139912HCID 136139912—
SolventHexamethylphosphoramideHCID 12679—
ProductHCID 53934759HCID 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 hexamethylphosphorotriamide are then added dropwise in the course of 1.5 hours, at 0°-3° C. Thereafter the mixture is stirred for 1 hour at room temperature and 11.7 g (0.085 mole) of dibromohydrin are then added dropwise. The solution is left to stand for 16 hours at room temperature and is then poured into 1.5 liters of ice water and 0.5 liter of saturated sodium chloride solution. The solid obtained is filtered off and recrystallized from acetone. 11.8 g (51% of theory) of yellow crystals are obtained. Melting point 134°-135° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04353917
Source datasetuspto-grants-1982_10
ORD IDord-771156641b3148f69e115ae78d02b166
Source noteuspto-grants-1982_10