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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1826100Generated: November 3, 2026

Hydrochloric Acid → HCID 12048064, compound

https://huagongshe.com/reaction/1826100

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
ReactantHCID 12048063HCID 12048063—
SolventPyridineHCID 1049—
ProductHCID 12048064HCID 1204806490.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of (S)-3-indol-2-yl-propane-1,2-diol (S)-1 (15 g, 78.5 mmol) in dry pyridine (120 mL) was added p-toluenesulfonyl chloride (15.5 g, 81.3 mmol) at 0° C. After stirring for 5 hours at 0° C., the solution was poured into cold hydrochloric acid (100 mL, 6N) and extracted with ether (3×60 mL). The combined extracts were washed with hydrochloric acid (6N, 2×30 mL) followed by brine (2×80 mL) and dried over anhydrous sodium sulfate. The solvent was evaporated and the residue was purified by flash chromatography to give 24.5 g (90.4%) of the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07049432B2
Source datasetuspto-grants-2006_05
ORD IDord-efcb987a763a474b8278d5cff576e751
Source noteuspto-grants-2006_05