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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1039965Generated: October 30, 2026

Sodium Sulfite → 8-(5-Bromo-1,3-thiazol-2-yl)-1,4-dioxaspiro[4.5]decan-8-ol

https://huagongshe.com/reaction/1039965

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium SulfiteHCID 24437—
ReactantN-bromobutanimideHCID 67184—
Reactant8-(1,3-Thiazol-2-yl)-1,4-dioxaspiro[4.5]decan-8-olHCID 57803329—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product8-(5-Bromo-1,3-thiazol-2-yl)-1,4-dioxaspiro[4.5]decan-8-olHCID 6725603295.5%

Reaction Conditions

Temperature45 °C

Reaction Steps

To a solution of 8-(1,3-thiazol-2-yl)-1,4-dioxaspiro[4.5]decan-8-ol (15.0 g, 62.2 mmol) in DMF (75 mL) was added NBS (6.9 g, 55 mmol) and the solution warmed to 45° C. for 8 hours. The solution was treated with Na2SO3 (3.9 g, 31 mmol) in H2O (150 mL) and the resulting slurry was filtered and washed with water (70 mL) to afford 8-(5-bromo-1,3-thiazol-2-yl)-1,4-dioxaspiro[4.5]decan-8-ol as a white solid (16.8 g, 52.5 mmol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08551984B2
Source datasetuspto-grants-2013_10
ORD IDord-f5fb9523fe0d45e09630146c9907d810
Source noteuspto-grants-2013_10