3,4-dihydro-2H-pyran → HCID 131734687, compound

Participants

Reaction Steps

DHP completely dissolved in 40 mL of toluene, yielding a yellow solution. SiCl4 was directly added to the DHP solution, immediately producing a very faint white cloudiness near the bottom of the flask. The mixture was stirred at ambient temperature for ˜72 hrs. A white precipitate was allowed to settle to the bottom of the flask. The solvent was removed under vacuum using a hot water bath. The yellow solution became increasingly dark as the solvent was removed; approximately 2-3 mL of liquid remained that would not evaporate. The remaining dark yellow slurry immediately turned brown upon air exposure. XRD analysis of the powder did not show any identifiable reflections.

Provenance & Evidence