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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1195246Generated: November 1, 2026

p-Toluenesulfonic acid → HCID 86743428, compound

https://huagongshe.com/reaction/1195246

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant(-)-GlycidolHCID 6973630—
SolventDiethyl EtherHCID 3283—
ProductHCID 86743428HCID 8674342870%

Reaction Steps

(S)-Glycidol (2 g, 27.0 mmol) in dihydropyran (40 mL, 438.0 mmol) was treated with para-toluenesulphonic acid (0.3 g, 1.5 mmol) at 0° C. with magnetic stirring. The reaction was complete in 10 minutes (TLC, ether). The reaction mixture was diluted with ether (100 mL), washed with water (10 mL), saturated NaHCO3 solution (20 mL), brine (20 mL) and dried over MgSO4. Concentration and flash chromatography gave the title compound (3 g, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05110949
Source datasetuspto-grants-1992_05
ORD IDord-8eeae378cb3749a086ee20d0f0cf8d5d
Source noteuspto-grants-1992_05